OPERATOR`S MANUAL G3WD - Gradall Hydraulic Excavators Service
Contents
1. E E 9 9 9 9 9 9 9 op 9 9 9 9 9 9 9 9 9 9 9 9 9 9 INTRODUCTION General This manual provides important information to familiarize you with safe operating procedures for the Gradall Hydraulic Excavator Throughout this manual the term carrier will be used to designate the excavator undercarriage Related Manuals Separate publications are furnished with the Gradall to provide information concerning safety replacement parts service manual with vendor components and literature You must read and understand the Gradall Opera tion Manual and Safety Manuals before operating the machine If you have any questions regarding the Gradall Excavator contact your Gradall Distributor he is thoroughly familiar with the unit and will be happy to help you Operator Qualifications The operator must hold a valid applicable driver s license which requires acceptable age vision hearing manual dexterity and response He must also be in acceptable physical and mental condition not undergoing medical treatment or using drugs or alcohol which would violate traffic laws Before driving the unit on the highway or operating the excavator at a worksite the operator must familiarize himself with the machine by practicing in a safe open area not hazardous to people or property Orientation When used to describe locations of components in2. Weight varies depending on options weigh unit to be sure 13 AIR CONTROLS Air pressure is used to control the engine RPM while driving the chassis or while operating the up perstructure To keep the pump and remote drive motor disen gaged while driving the carrier air cylinders are used to actuate jaw type clutches When the remote toggle switch button on the dash is depressed air FAST IDLE CYLINDER shifts the cylinders at the pump and motor to cause the jaw clutches to close and engage the pump and motor A limit switch is placed by the pump engage cylinder to provide a visual warning light if the desired stroke is not obtained and the pump does not fully engage for upperstructure operation THROTTLE CYLINDER 14 SWITCH JAW CLUT CH CYLINDER JAW CLUTCH AIR THROTTLE CONTROL CIRCUIT It is possible to control the engine RPM from the carrier cab or the upperstructure cab Conventional Driving Mode When driving the carrier the floorboard acceler ator is used to control the engine speeds from idle to top governed RPM The low idle is about 600 RPM and the top is about 3150 RPM No Load or 2800 RPM Loaded When starting the engine with low air the spring on the fast idle cylinder 1 works on the governor link age to obtain a higher than idle speed to help build up air pressure quickly When the system builds up to 55 psi the piston in the fast idle cylinder moves to counter the spr
3. Test your controls before operating The control pattern illustrated is the standard Gradall control pattern If your machine controls have been modified to any other pattern be certain you are familiar with their functions before operating and ensure that control diagram in cab is changed to show the actual pattern Joysticks return to neutral position when released 27 A TYPICAL GRADALL DIGGING CYCLE 5 Pull back on left joystick A to raise boom from 6 Move right joystick to left G to swing left or to boom rest Be sure to raise boom far enough to right H to swing right to digging site clear all obstructions 7 While pushing right joystick forward F to 8 Move left joystick to left C to open bucket or to extend boom push left joystick forward B to right D to close bucket for correct penetration lower boom to position for start of cut Teeth should angle downward slightly about 5 Angle may be greater for soft digging 28 A TYPICAL GRADALL DIGGING CYCLE 9 If required press left side of tilt switch I to tilt 10 While pushing forward on left joystick B to counter clockwise or right side of switch J to lower boom and force bucket into ground pull tilt clockwise back on right joystick E to retract boom and fill bucket 11 As bucket is filling jog left joystick forward B 12 When bucket is full or when boom is fully to lower boom and maintain depth of cut At retracted move left
4. the upperstructure the directions front rear right and left relate to the orientation of a man sitting in the operator s seat In relation to the carrier front rear right and left are determined by the orientation of a man sitting in the driver s seat PIN Location Product Identification No Specify PIN and lot number when ordering parts and when discussing specific applications and procedures with your dealer The PIN plate is located on front center portion of upperstructure frame GRADALL Model No LOT Product dentification Number MEN This product may embody features of one or mora of the following patents 9 954 196 3 599 814 3 666 125 3 328 291 4 111 320 3 587 886 4 243 107 3 303 752 3 494 439 other patents pending Serial Number Location The carrier nameplate is located on the right side Be sure to specify the serial number on nameplate when ordering parts and when discussing proced ures and applications with your distributor GRADALL ADG Mn SW Mi Usa dalpra LED x THIS IS NOT A PIN PRODUCT IDENTIFICATION NUMBER PLATE MIN MODEL BE BERIAL NO FRONT TIRES AEAR TIRES n T ENGINE man P3 32 LEN 37 se scenes 7 SAFETY HIGHLIGHTS Read and understand this manual The Gradall Excavator Safety Manual CIMA Safety Manuals and all instructional decals and plates before starting operating or performing maintenance procedures on this equipment KEEP THIS MANUAL
5. M red THE GRADALL COMPANY T4 remote mode G3WD l T2 engine off T1 low alr travel mode shift pattern indlestor CERT e 5 ce 83 2 mul NEUTRAL Any time the shift lever in the carrier cab s in the neutral position the Neutral light will be lit The travel shifter must be in neutral before engine can be started or switched from Travel to Remote and vice versa If in Travel the C1 light will also be lit If in Remote the C2 Remote and the T4 Remote mode lights will be lit REVERSE The following show the lights which are lit when in the 3 reverse positions Reverse C4 is lit to show it being in the reverse mode The Reverse C4 light and the C1 light will always Be lit Cl indicates travel mode S1 S4 C1 amp C4 First Reverse Gear 52 S4 C1 amp C4 Second Reverse Gear S3 S4 C1 amp CA Third Reverse Gear THE GRADALL COMPANY G3WD THE GRADALL COMPANY G3WD mode shirt ee THE GRADALL COMPANY G3WD travel mode O shift pattern Te c3 M NS PE T4 remote mode T2 engine off T1 low air T4 remote mode T2 engine off T1 low air T4 remote mode T2 engine off T1 low air PA THE GRADALL COMPANY G3WD travel mode shift pattern T4 remote mode T2 engine off T1 low air MALFUNCTION INDICATOR Indicates a wire shorting between the Controller Monitor and the transmission shift solenoids It can a
6. Manuals za 5 4 080000 0 0 rmn 2 Operator Qualifications iiia iix ssy 500 2 DHERHDITIOR u 3 5 5 a u E RRENESS 2 PIN LESE ee 2 Serial Number Location es 2 SAFETY HIGHLIGHTS ss mimm mm une 3 CARRIER CAB CONTROLS INSTRUMENTS amp INDICATORS 4 UPPERSTRUCTURE CAB CONTROLS amp INSTRUMENTS 5 CARRIER CAB DISPLAY LIGHT PANEL ee Tall 6 CARRIER CAB CONTROLLER MONITOR 6 Shift SolenoNIS ws 20 0 we a ee dox aae 7 CO TIU issie 3 0 2 Rees A FH I Tag 8 NEE cnGRRERELOEEXXDREPUEEGUES ICE 9 RSXBPB rien 9 Malfunction Indicator 10 LS VADE cd euin eine dx a eck KS 10 Engine DIE osea ks ernennen cee s 10 Pump amp Motor Engaged ero sss 10 CHECKS amp SERVICES BEFORE STARTING ENGINE Starting Diesel Engine Prony Carien CAD oa ss oen ese nn 11 Stopping the Engine rom Carrier Cab isoesnme ms 6 6 0 remm u u 1 Cold Weather Starting Aids 12 Normal Engine Operation 2 52 e n 12 CHECKS AFTER STARTING ENGINE 4422 camis taa 3 AA RE X 13 CHECKS BEFORE DRIVING 13 PLAN YOUR LEIP ou x 0 wma a nem nn 13 AIR CONTROLS esses se ream nr ncn 6 14 AIR THROTTLE CONTROL CIRCUIT Conventional Driving Mode 15 Remote Control Driving Mode 15 HYDRAULIC PUMP amp MOTOR DISCONNECT Normal DPW aaa xx marais amm mna 16 Remote Operation o yss rorum rca 16 Jaw Iyps CIuteli as 100 aus peores 16 BRAKE SYSTE
7. and operator Spccial Signals When signals for auxiliary equipment functions or conditions not covered are required they shall be agreed upon in advance by the operator and signalman Instructions When it is desired to give instructions to the operator other than provided by the established signal system all excavator motions shall first be stopped MOVE LOAD IN HORIZONTALLY With either arm extended hand raised and open toward direction of movement move hand in direction of required movement LOWER BOOM With either arm extended horizon tally fingers closed point thumb downward SWING With either arm extended horizontally point with forefinger to direction of swing rotation EXCAVATOR HAND SIGNALS RAISE LOAD VERTICALLY With either forearm vertical forefinger pointing up move hand in small horizontal circle LOWER LOAD VERTICALLY With either arm extended downward forefinger pointing down move hand in small horizontal circle MOVE LOAD OUT HORIZONTALLY With either arm extended hand raised and open toward direction of movement move hand in direction of movement RAISE BOOM With eitherarm extended horizon tally fingers closed point thumb upward EXTEND TELESCOPIC BOOM With both hands clenched point thumbs outward RETRACT TELESCOPIC BOOM With both hands clenched point thumbs inward OPEN BUCKET Hold one hand oen and staion ary Rotate other hand in small ver
8. it back on the truck Lowering or extending the boom can exceed the rated capacity of the unit The common sense and feel an experienced operator might apply in regard to tipping loads DOES NOT APPLY to loads limited by hydraulic lift capacity Some loads shown on the chart in cab are Hydraulic Lift Capacities Exceeding these capacities can cause a relief valve to open allowing the load to fall or in some cases the machine to tip To avoid exceeding capacities the entire lift must be planned Positioning Machine For A Lift Before discussing the steps in planning a lift let s consider the most favorable excavator positions for making a lift The shorter the load radius the greater the lift capacity Position the unit to minimize boom extension while keeping a safe distance from obstructions and excavations Position the unit to minimize boom travel above and below horizontal For example it may be necessary to use a short sling to move a load from a truck to the ground Then use a longer sling to position load in an excavation Finally position unit for maximum visibility If conditions do not permit a clear view of the load through entire lift use a signal man 32 Planning A Lift 1 Determine the weight of the load Weight of slings chains and auxiliary lifting devices must be added as part of the load Refer to lift capacity chart for weight adjustment required for bucket NOTE Lift capa
9. to fit between tool eye and adapter SECURING BOOM BUCKET FOR TRAVEL Position boom in boom rest and secure with boom tie down 31 Do not travel with a suspended load Excava tors are not designed for pick and carry lifts Sudden swing braking can cause unexpected movement of the load and tip the machine Be sure tires are properly inflated before handling a load Keep load line vertical Side loads can cause structural damage and tip the machine Do not lift a load if unit has a boom extension attached Be thoroughly familiar with excavator hand signals shown at end of manual Never pass load line over bucket Relief valves in bucket circuit could cause unexpected dangerous movement of the load Bucket linkage could also be damaged General The excavator can lift and position loads safely ONLY IF YOU PLAN THE LIFT PROPERLY DANGER Failure to plan a lift properly can cause death or serious injury A There is a great lift capacity difference between the excavator s best and worst lift positions Just because it can lift a load from one point does not mean it can safely move the load to any other point For example the best lifting position is with the excavator level and the boom fully retracted and horizontal Assume that you have just lifted the maximum rated load from a truck with the unit in this position You can swing but the only other thing you can safely do with the load is put
10. we recommend that this manual be read understood and followed by all who operate the unit Danger Warning and Caution notes in this manual will help you avoid injury and damage to the equipment These notes are not intended to cover all eventualities it would be impossible to anticipate and evaluate all possible applications and methods of operation for this equipment Any procedure not specifically recommended by The Gradall Company must be thoroughly evaluated from the standpoint of safety before it is placed in practice If you aren t sure contact your Gradall Distributor be fore operating Do not modify this machine without written permission from The Gradall Company A WARNING NYLON BRAKE LINES MAY BE DAMAGED BY HEAT AVOID WELDING ON OR AROUND THE MACHINE UNLESS BRAKE LINES ARE PROTECTED FROM HEAT DISCONNECT BATTERY BEFORE WELDING ON MACHINE NOTICE The Gradall Company retains all proprietary rights to the infor mation contained in this manual The Company also reserves the right to change specifications with out notice Gradall is a registered trademark for hydraulic excavators hydraulic ma terial handlers and attachments man ufactured by The Gradall Company The Gradall Company 406 Mill Avenue S W New Philadelphia Ohio 44663 TABLE OF CONTENTS IMPORTANT SAFETY NOTICE inside front cover TABLE OF CONTENTS e sro l INTRODUCTION COTEU ee dg ee wo an a ae 2 Related
11. 6 Converter Oil Pressure Gage 22 Dome Light 7 Display Light Panel 23 Windshield Wiper Speed Control 8 Air Pressure Gage 24 Windshield Washer Switch 9 Water Temperature Gage 25 Headlights Hi Low Beam Switch 10 Transmission Shifter 26 Brake Pedal 11 Volt Meter 27 Acclerator Pedal 12 Oil Pressure Gage 28 Emergency Engine Shut Off 13 Tachometer 29 Transmission Control Monitor 14 Speedometer 30 Turn Signal Control Lever 15 Hour Meter 31 Hazard Flahser Switch 16 Converter Oil Temperature Gage 32 Horn Button UPPERSTRUCTURE CAB CONTROLS AND INSTRUMENTS 15 7 eee SS y SO 1 Throttle Lever 10 Engine Start Switch 2 Boom In Out amp Swing Joystick 11 Defroster Switch 3 Boom Tilt Switch 12 Warning Buzz Light 4 Transmission Shift Up Down Switch 13 Emergency Brake Knob 5 Horn Switch 14 Air Pressure Gage 6 Boom Hoist amp Bucket Joystick 15 Forward Reverse Travel Pedal 7 Joystick On Off Switch 16 Steering Pedal 8 Engine Stop Switch 17 Heater 9 Windshield Wiper Washer Switch Optional While working in upper cab and any of the display panel warning lights go on in the carrier cab a buzzer will sound in both cabs The operator should place boom in rack shut engine off and go to lower cab and check all gauges and determine reason for warning Correct malfunction before continuing to operate CARRIER CAB DISPLAY LIGHT PANEL Left turn signal A flashes when lever on steering post is a
12. GRADALL OPERATOR S MANUAL G3WD 7733 1006 July 2002 Upperstructure Starting S N 8731229 Undercarriage S N Starting 87D024 Also Covers Upperstructure NP 411894 Undercarriage 86D104 Form 8606 Original Issue 1986 GRADALL 406 Mill Avenue S W New Philadelphia OH 44663 USA Telephone 330 339 2211 Fax 330 339 3579 Form No 8606 OPERATOR S IMPORTANT Read and understand this manual the Gradall Safety Manual and all of the Gradall Service Manual Sections before starting operating or performing maintenance procedures on this machine KEEP THESE MANUALS IN CAB AVERTISSEMENT ATENCION VORSICHT Si vous ne lisez pas Si no lee ingles pre Wen Sie kein Englisch l anglais demandez a guntele a su supervisor lesen bitten Sie ihren votre surveillant de vous para las instrucciones Vorgesetzten um die donner les instructions de seguridad Sicherheitsvorschriften de securite COVERS UNITS STARTING S N 8731229 amp CHASSIS S N 87D024 ALSO COVERS UNIT S N NP 411894 amp CHASSIS S N 86D104 MANUAL Part No 7733 1006 IMPORTANT SAFETY NOTICE Safe operation depends on reliable equipment and proper operating procedures Performing the checks and services described in this manual will help to keep your Gradall Excavator in reliable condition and use of the recommended operating procedures can help you avoid accidents Because some procedures may be new to even the experienced operator
13. IN THE CAB Watch for these symbols they are used to call your attention to safety notices Maintain three point contact with grab handles and steps when climbing on and off the machine Never jump from the machine Repair or replace damaged steps and grab handles This symbol indicates an extreme hazard which would result in high probability of death or serious injury if proper precautions are not taken This symbol indicates a hazard which could result in death or serious injury if proper precautions are not taken This symbol indicates a hazard which could result in injury or damage to equipment or property if proper precautions are not taken Perform all CHECKS amp SERVICES BEFORE STARTING ENGINE and all WARM UP amp OPERATIONAL CHECKS at the beginning of your shift Complete all required maintenance be fore operating or driving the unit CARRIER CAB CONTROLS INSTRUMENTS AND INDICATORS 14 2120 19 18 17 16 15 WARNING While in lower cab the four wheel drive can be engaged at any time in the lower range Use low R P M A WARNING Do not move carrier while low air light is glowing or while any auxiliary device is signal ing a dangerous condition 1 Heater Control Knob 17 Fuel Gage 2 Defroster Switch 18 Front Axle Disconnect 4x4 only 3 Heater Switch 19 Ignition Key Switch 4 Headlights Switch 20 Parking Brake Button 5 Pump Engagement Light 21 Remote Travel Switch
14. M Servie Brake una iE ER 17 Bierzeney Brake una 0 sa emt ii IEEE 17 Packing Brake 6 u 0mae n ach cme 3E rare 18 Digging Brake a sess a nnm 18 amp 19 Remote Control Braking 19 STEERING SYSTEM Conventional Steering va senum Remote Control Steering POWER TRAIN Torque Converter ss usa as ue x POWER SHIFT TRANSMISSION COUE aa i i A A a N When to Shift Gears REMOTE CONTROL Preparing Carrier for Remote Control Operation Preparing Upperstructure for Remote Control Operation How to Start Engine from BES BEN ee ee Eee Precautions for Remote Control Operation ss s s we 0 6 nme n Driving Carrier from Upper Cab iicecsa se ns Shifting Gears While in Remote Control emeas a a me Rn traces Preparing Upperstructure for Conventional Carrier Operation PARKING THE GRADALL Precauliotis ss cuv abe 1 es Park ng Procedure ass rue IN CASE OFTROUBLE 32 3 sss 2 05 FRONT AXLE LOCK OUT CIRCUIT A TYPICAL GRADALL DIGGING CYCLE i ev ry RA SECURING BOOM BUCKET FOR TRAVEL iskabisRHUGikkeexusitti LIFTING amp POSITIONING A LOAD PIE ea s 4 ee ar iara Opera 3 5 4 we ad x ee ee aes Positioning Machine tora Lib cesses x a ae en xs Planmniga LATE wos ox 2 ua eu HOW TO EXTEND THE SLIDE A BOCM iur mensa i nen nn HOW TO RETRACT THE SIIDEAHBODM qua amp 0000 e m t k ea n ATTACHMENT INSTALLATION EXCAVATOR HAND SIGNALS IF YOU GET STUCK amp 9 9 9 9 9 9 9 9 9 9 9 9 9
15. NG Keep boom in fully extended position while installing bucket Stay clear until bucket adapter has been fitted tobucket as shown in step 2 F kt a m I be iex en ul L d ur TS Ai b er ee p ILLE JR EM zl ey r FR Ep zu ee A 1 Position bucket adapter above bucket tube as shown and lower boom until concave section of adapter contacts bucket tube A CAUTION Digging with a loose or an improperly fitted bucket can shear adapter bolts and cause excessive wear ATi n rd LJE i mu ho DS SE CENE oY Pet or E Ia 2 Move adapter toward Bucket Close position until outer end of adapter contacts bucket 3 Install adapter wedge bolts washers and nuts and tighten finger tight This position nsreasss bucket tooth farce and reduces bucket travel 5 Position bucket linkage as desired 34 4 Raise boom slightly until bucket just clears ground and tighten nuts Check often to be sure nuts remain tight 6 Check to be sure bucket travel is limited by stops when opening and by bucket tube when closing NOT by cylinder bottoming A CAUTION Never fully extend bucket cylinder without a bucket installed or cylinder rod will be damaged Standard Signals When excavator work conditions require hand signals they shall be provided or posted conspicuously for the use of both signalman and operator No excavator motions shall be made unless signals are clearly understood by both signalman
16. cities are based on machine being on a firm level surface and also on load being freely suspended as shown 2 Move the machine to the best probable position for making the lift 3 Perform an unloaded trial run of the lift to determine maximum load radius required and maximum boom height and depth required to complete the lift Measure load radius from the center of the rear axle to the vertical load line and add 34 distance from axle to center of rotation MEASURE Measuring Load Radius Measure boom height depth from bucket adapter pivot shaft to ground level same plane as bottom of tires Be sure to allow for length of sling and height of load 4 Refer to lift capacity chart column for the required load radius If the required radius falls between columns use the column for the next larger radius 5 Check the appropriate capacities for the required boom height and depth The smaller of these capacities is the maximum load permitted for lift conditions To determine practical working load limits the operator must also consider wind hazardous conditions experience of personnel and proper load handling Keep tires properly inflated You have more stability over the rear and less over the side HOW TO EXTEND THE SLIDE A BOOM Start engine Position the upperstructure with the boom over the right or left side of the carrier Extend the telescopic boom four feet and place the bucket edge LEVEL into the gro
17. control steering Regardless of upperstructure position on carrier depressing left side of pedal turns wheels to left depressing right side of pedal turns wheels to right When not held in a left or right steering position the steering pedal will return automatically to its neutral non steering position Be sure upper structure cab is kept free of equipment and foreign material which could jam steering pedal in a steering position Rotation of the carrier steering wheel will occur during remote operation KEEP CLEAR CAUTION Be alert for any increase in effort needed to steer If any difference is noted notify maintenance personnel immediately for correction If power assist feature should fail for any reason IT WOULD BECOME VERY DIFFICULT TO STEER For this reason it is extremely important that you NEVER TURN ENGINE OFF WHILE TRAVELING In the event power steering fails stop as soon as possible Do not drive unit until problem has been corrected 20 The power train furnished on 4 x 2 carriers units having one driving axle at rear include the engine torque converter power shift transmission and the rear axle It includes the drive shaft between the transmission and the rear axle Torque Converter There are no operator controls for the torque converter It functions automatically to permit starting from a standstill in any transmission speed range POWER TRAIN The power train furnished on 4 x 4 carri
18. ctivated to indicate a left hand turn GREEN Remote Control Indicator B is lit when the remote rocker switch is depressed and all of the pre conditions are met It will turn RED At this time the remote drive motor should be engaged and the digging brakes applied and upper throttle engaged If torque converter temperature reaches 250 F C will light RED If torque converter pressure drops below 200 psi D will light RED If head light switch is pulled and the foot button is depressed the high beam E will light BLUE CATS EcToOTeEIFIGIHIJIK If air pressure drops below 60 psi F will light RED Check gauge If engine temperature reaches 210 F G will light RED Check gauge If engine oil pressure drops to approximately 15 psi H will light RED Check gauge If battery is below 12 volts J will light RED Right turn signal K flashes when the lever on the steering post is activated to indicate a right hand turn GREEN NOTE If any of the warning lights C D F G or H are on a warning light and buzzer in the upper cab will be activated CARRIER CAB CONTROLLER MONITOR G3WD travel mode NN The Monitor is located to the right of the OT seat in the carrier cab The Controller Monitor provides range selection of the solenoid controlled transmission in both travel and remote modes It also determines if remote or travel mode has been S1 Transmission Solenoid 1
19. e drive motor is not engaged to the transmission NORMAL DRIVING When driving the chassis air from the tank 1 is routed thru the air pilot valve 2 directly to the two cylinders for the pump and motor 3 amp 4 to keep them disengaged 16 REMOTE OPERATION When the remote switch 5 is activated the air solenoid 6 routes pilot air to the air pilot valve 2 The plunger shifts and routes air to the opposite ends of the pump and motor cyl inders 3 amp 4 JAW TYPE CLUTCH Each of the two cylinders are connected to linkage which activates the jaw type clutch 7 The illustration shows the jaws sepa rated Movement of the linkage which connects to the cylinder rod causes the sliding half to move over and engage the two halves di The air brake system includes a service brake an emergency brake a parking brake and a digging brake A WARNING Wear safety belt to avoid being thrown from carrier driver s seat during braking emergency Service brake SERVICE BRAKE APPLICATION The basic system includes two reservoirs to store and furnish air pressure for service brake operation One reservoir supplies pressure to apply brakes to the wheels of the front axle and the other supplies pressure to apply brakes to the wheels of the rear axle Depressing the brake treadle causes air pres sure to be applied to brake actuators of all wheels simultaneously A WARNING Do not fan the brake valve treadle A
20. eck hydraulic oil level 12 Lubricate as shown in manual Starting Diesel Engine from Carrier Cab 1 Be sure main transmission is in neutral parking brake is applied and engine stop handle is fully depressed 2 Depress accelator pedal to a fast idle and hold in this position 3 Turn ignition switch fully clockwise to engage starting motor Release key immediately when engine starts If engine fails to start within fifteen seconds release key and allow starting motor to cool for a few minutes before trying again 4 After engine starts observe oil pressure gage If gage remains on zero for more than ten seconds stop engine and determine cause Correct before restarting engine Stopping the Engine from Carrier Cab Operate engine at idle speed for a few minutes before turning it off This allows engine coolant and lubricating oil to carry excessive heat away from critical engine areas 11 5 Warm up diesel engines at approximately one third of governed speed until water temperature reaches operating range approximately 160 F 71 C NOTE It may be necessary to use a cold weather starting aid in temperatures below freezing A CAUTION Do not engage starting motor while fly wheel or starting motor is rotating Serious damage could result Do not gun engine before shut down this practice causes raw fuel to remove oil film from cylinder walls and dilute lubricant in crankcase To stop diesel eng
21. ener gized when lit S2 Transmission Solenoid 2 ener gized when lit s3 Transmission Solenoid 3 ener gized when lit S4 Transmission Solenoid 4 ener gized when lit C1 Solenoid Air Valve shifted to travel mode when lit S5 Transmission Solenoid 5 ener gized when lit S6 Transmission Solenoid 6 ener gized when lit C2 Solenoid Air Valve shifted to remote mode when lit THE GRADALL COMPANY shift pattern c2 se S5 Mak 3 2 T4 remote mode T2 engine off T1 low air ME I selected by the operator and controls the machine changeover to the mode selected The Controller Monitor has a panel of 14 lights which shows the driver the status of the control system Neutral Neutral Start Solenoid closed when lit Reverse Travel alarms and back up lights energized when lit T1 Low air condition exists when lit T2 Engine not running when lit TA Hyd Pump and Remote Motor engaged when lit Malfunction Indicator Indicates a wire shorting between the Controller Monitor and the transmission shift solenoids Wires S1 through S6 SHIFT SOLENOIDS A combination of these lights tell which gear ratio has been selected The position of the gear selector lever on the dash should match The following will show the light combinations while in the travel mode with high air and the key turned on and engine running C1 is lit to show the travel mode S1 C1 S6 First Travel Gear S1 C1 S5 Second Tra
22. ers units having both front and rear driving axles include the engine torque converter power shift transmission and the front and rear driving axles The transmission is moved back to the center portion of the frame and drive shafts are used to connect it with the engine and the two axles Torque converter oil temperature and oil pressure gages are provided to monitor torque converter operation POWER SHIFT TRANSMISSION The Series 2000 Shift O Matic is a six speed forward three speed reverse transmission Forward motion reverse motion and the speeds are obtained through the use of electrically controlled solenoids and hydraulically actuated multiple disc clutches These clutches are power absorbing members that can be engaged at full engine power Shifting under full engine power makes this a full power shift for the forward and reverse motion in all speeds The clutches in these units are hydraulically applied and spring released Because the clutches are hydraulically controlled there s automatic compensation for normal wear which eliminates the need for adjustment Each clutch uses a composition friction plate and a polished steel reaction plate 21 The power from the engine is transmitted to the Shift O Matic through a torque converter The use of the torque converter has two distinct advantages 1 the converter is essentially a fluid drive there being no direct mechanical connection between the engine and tran
23. fting of these three gears can be done while the machine is moving returns to neutral position when released Release pedal gently for a smooth stop 4 The steering pedal controls right and left turns depress left side of pedal to turn left or right side of pedal to turn right Pedal returns to neutral position when released 5 Use EMERGENCY BRAKE to stop carrier if automatic digging brake fails Lift control knob to apply brakes Brakes cannot be released until pressure is restored and parking and emergency brake control knobs are depressed Apply emergency brake before leaving upper cab JOYSTICK SWITCH TRANSMISSION SHIFT SWITCH Preparing Upperstructure for Conventional Carrier Operation Test brakes refer to page 11 2 Retract boom and position boom in boom rest Secure boom using boom hold down device as necessary 3 Raise brake control knob to apply emergency brake 4 Allow engine to cool by running at idle speed for afew minutes Stop engine 5 Be sure travel and steering pedals are in neutral position Preparing Carrier for Conventional Operation 3 Move the remote switch to the travel position 1 Shift main transmission to neutral 2 Apply parking brake Precautions Avoid parking on slopes or near an excavation Avoid parking on roads or highways If It can not be avoided be sure to display warning flags during day and flares or flashing lights at night Position boom
24. id continuous operation at full governed engine RPM Cruising at governed RPM reduces engine service life and provides no reserve power for varying conditions It is good practice to select a gear offering desired carrier speed at approximately 85 percent of governed engine speed Reserve full governed RPM for conditions requiring full power 22 When load conditions cause a continuing loss of engine speed downshift to the next lower gear In general operate in a gear that will permit acceleration Though it is permissible to use the braking power of the engine when traveling downhill take care to avoid overspeeding the engine exceeding governed RPM The governor has no control over engine speed when the engine is being pushed by the carrier load Select an appropriate gear ratio and use your brakes to assist in slowing the carrier REMOTE CONTROL NOTE Remote control is to be used for positioning unit at job site not for over the road travel Preparing Carrier for Remote Control Operation When the driver wants to stop the Gradall on the job and operate the upperstructure he switches to re mote control of the carrier at the same time The following steps are taken 1 Stop the machine 2 Set the parking brakes 3 Place the transmission shifter in neutral 4 Turn the engine off 5 Turn the key on again but don t start engine 6 Actuate the remote control switch A A remote indicator will go on B The co
25. in boom rest never leave ma Parking procedure 1 Using service brake stop unit in appropriate parking area 2 Set PARKING BRAKE to ON 3 Allow engine to cool at idle speed for a few minutes and then turn off 4 Shift transmission to first gear This release the remote brakes disengages the hydraulic pump and the drive motor PARKING THE GRADALL chine with boom in air Park on level ground and block wheels If parking on a slope cannot be avoided posi tion unit at right angle to slope and block wheels 8 Block carrier wheels as extra precautions against rolling Fill fuel tank to minimize condensation Remove ignition key Lock carrier and upperstructure cabs and install protective window covers if available Disconnect batteries 1f unit is in an area where tampering seems possible IN CASE OF TROUBLE 1 Park unit in a safe area apply parking brake and block wheels Display warning flags flares or flashing lights as necessary 2 Contact supervisor and advise 25 Nature of problem Location of unit Where you can be reached by phone FRONT AXLE LOCK OUT CIRCUIT The G3WD is equipped with an automatic front axle lock out system It provides a positive lock be tween the front axle and the chassis frame while digging With improved stability while digging Two hydraulic cylinders A are installed between the frame B and the front axle C A lock out valve e D is
26. ine turn key to off Cold weather starting aids Start in travel mode pump not operating Diesel engine ignition is accomplished by heat generated when fuel air mixture is compressed within the cylinders Because this heat may be insufficient to start a cold engine in cold weather the use of starting aids has become common practice Because of the wide variety of starting aids available Normal engine operation Observe voltmeter water temperature and oil pressure gages frequently to be sure all engine systems are functioning properly Be alert for unusual noises or vibration When an unusual condition is noticed stop in a safe area and shut off engine Determine cause and correct before continuing Early recognition and correction of unusual con ditions can often prevent a major breakdown Apply load to engine gradually shock loads are hard on all drive line components Use full governed engine speed for intermittent duty only For cruising or continuous duty use approximately 85 percent of full governed engine speed to maintain safe speed This practice provides increased engine life 12 it would be impractical to attempt to provide specific instructions for their use in this manual Carefully follow instructions furnished with your starting aid If you use a starting aid employing ether or a similar substance pay particular attention to manufacturer s warnings When using engine braking power downshifting
27. ing tension and the engine will run at normal low idle speed Normal depressing of the Accelerator Pedal 2 routes air from the tank 3 thru the Air Pilot Valve 4 thru a Shuttle Valve 5 to the Throttle Cylinder 6 Movement of the piston in the throttle cylinder moves the Fast Idle Cylinder and the linkage to the engine governor 7 RPM is determined by the amount of travel caused by pushing down on the treadle valve pedal M y SUPPLY EXHAUST 3 Remote Control Driving Mode When driving the carrier from the upperstructure in the remote control mode a hand controlled air valve is used 8 It is located on the cab floor to the left of the operator s seat While in remote a low idle of 600 RPM and a high idle of 2700 RPM No Load or 2300 RPM Loaded can be obtained The remote air circuit is activated when the remote control switch 9 is depressed Electrical current ac tivates the Air Control Solenoid 10 routing tank air over to the control port of the Air Pilot Valve 4 Air pressure causes the Air Pilot Valve 4 to shift routing air to the upperstructure circuits thru cen terpin 11 and the Hand Throttle Valve 8 When the hand throttle is moved controlled air 1s routed back down thru the centerpin 11 and thru the Shuttle Valve 5 to the Throttle Cylinder 6 HYDRAULIC PUMP amp MOTOR DISCONNECT When driving the Gradall from the carrier cab the hydraulic pump and the hydraulic remot
28. ir Observe voltmeter indication of alternator out warning light is still glowing put Proper output is approximately 14 V with engine running at 2000 RPM 9 Observe air pressure gages Proper brake system pressure is 60 125 psi CHECKS BEFORE DRIVING To be performed at beginning of each work shift Complete all required maintenance before driving Check operation of brakes by performing the 2 Check operation of steering while moving slowly following procedure in first gear Be alert for any increase in effort a Position unit on level surface and apply needed to turn wheels and any unusual steering digging brake response to normal steering effort b Position boom over rear of chassis and imbed bucket in ground or against a solid object 3 Check operation of horn and travel and back up c Apply down pressure with boom and pull and push with boom while helper watches for rotation of each wheel d Rotation of any wheel during step c indicates brake failure on that wheel Have any failure corrected before driving the unit Plana safe route to your destination alarm and any other signal devices PLAN YOUR TRIP 2 Ask your supervisor about permit requirements 3 Check on load amp clearance limits along your route Dimensions for your unit are shown below Height varies depending on attachment measure unit to be sure Width 4x 2 8 2 44m 0 00008 100 on 4 x 4 Ground Clearance sera 10 254 mm
29. joystick to right D to close same time jog left joystick to left C to open bucket At same time pull left joystick back A bucket and maintain proper bucket angle to raise boom Raise boom only far enough to clear obstructions 29 A TYPICAL GRADALL DIGGING CYCLE 13 Move right joystick to right H to swing right 14 Move left joystick to left C to empty the or to left G to swing left to dump site If bucket necessary extend boom by pushing right joystick forward F 15 Move right joystick to left G or right H to align boom for next cut Repeat steps 7 thru 15 30 LIFTING AND POSITIONING A LOAD Precautions Do not depend on machine tipping as a warning of overload Some load ratings are based on hydraulic lift capacity not stability Hydraulic relief settings must be correct when lifting and positioning loads Suspend loads only as shown Passing load line over bucket can cause uncontrolled movement of load Always operate at full engine RPM when handling a load This keeps cylinders filled and prevents unexpected machine movements Keep everyone clear of machine especially the boom and suspended load Use guide ropes to position load Lock out cylinders automatically unlock in travel Load Attachment Point With bucket adapter resting on ground position hook in tool eye as shown Open bucket adapter far enough to prevent accidental disengagement of hook Be sure hook is not too large
30. long series of rapid brake applications can reduce system pressure to a point where effective service braking will be lost until air compressor can restore pressure Operating pressure range for service brakes is 60 to 125 psi A dual pressure gage is furnished to indi cate pressure in front and rear portions of brake system The red needle shows pressure available for rear axle brakes and the green needle shows pressure available for front axle brakes If pressure in either portion of the system falls below safe operating range the low air indicator light will glow wheels of the front axle 17 BRAKE SYSTEM GREEN NEEDLE FRONT PORTION OF SYSTEM LOW AIR LOW AIR INDICATOR RED NEEDLE REAR PORTION OF SYSTEM DUAL AIR GAGE WARNING Do not operate carrier while low air indicator is glowing If light comes on while carrier is moving stop carrier in a safe area as soon as possible If carrier will not maintain proper brake pressure notify maintenance personnel immediately for repair of condition Emergency brake The emergency brake functions only when air pressure has been lost from some portion of the dual brake system Emergency brakes are applied by normal foot pressure on the brake treadle A WARNING Emergency brakes will not stop carrier in as short a distance as the service brakes EMERGENCY BRAKE APPLICATION pressure lost in fron mn 5 If air pressure is lost from the f
31. lso indicate that the Controller Box is defective and should be re placed LOW AIR If the system air pressure drops below 60 psi T1 will light ENGINE OFF Any time the engine is running no lisht will show at the T2 position If the engine stops T2 position will be lit PUMP ENGAGED When the remote switch is de pressed the air circuit shifts cylinders to engage the hydraulic pump and the remote drive motor If the pump is engaged fully the T4 light will be on 10 THE GRADALL COMPANY T4 remote mode G3WD an t 2 shite patton a 3 S ir s3 s2 91 M T4 remote mode T2 engine off T1 low air THE GRADALL COMPANY T4 remote mode G3WD Onan travel mode shift pattern THE GRADALL COMPANY T4 remote mode T2 engine off G3WD T1 low air travel mode O shift pattern indleator x c2 a 55 Ct 3 2 X CHECKS AND SERVICE BEFORE STARTING ENGINE To be performed at beginning of each work shift Complete all required maintenance before operating unit l Inspect visually for damage leaks vandalism amp needed maintenance 2 Test lights turn signals horn amp gages 3 Inspect battery fluid level 4 Make sure fire extinguisher is present 5 Inspect level of windshield washer fluid 6 Make sure remote switch is in travel position 7 Check coolant level 8 Check engine oil level 9 Check fuel level 10 Check for clean windows 11 Ch
32. mounted to the chassis frame on the right front side It functions automatically to keep the oil locked in the two cylinders and prevent cylinder movement while the carrier is in the remote control mode and the dig brakes are set When the units is in the normal travel mode the cylinder ports are joined and connected to the reservoir dump and movement of the cylinders can take place A WARNING Do Not Pick amp Carry Over Side 26 A TYPICAL GRADALL DIGGING CYCLE Position unit for efficent digging cycle 3 Start and warm up engine and hydraulic oil and then move throttle lever to full throttle position 2 Stop engine and secure door and windows in upper cab to desired position for ventilation 4 Move JOYSTICK rocker switch to ON position Remote boom hold down device A WARNING A WARNING Always operate with engine at full throttle to keep cylinders full of oil to prevent un expected machine movements Avoid accidental actuation of the controls Always stop engine before repositioning door and windows CAUTION For deep or near vertical digging position machine to dig over right side of carrier If boom is lowered more than 68 below horizontal over the left side the boom cradle will contact hydraulic reservoir Practice with joystick controls in a safe open area LOWER EXTEND 800M BOOM TILT Q TILT HORN COUNTERCLOCKWISE CLOCKWISE OPEN CLOSE SWING SWING BUCKET BUCKET LEFT RIGHT Aa WARNING
33. ntroller lights will show air s OK C The pump and drive motor are engaged D The brakes are set E The transmission shifts automatically into first gear 7 Release the parking brake button 8 Turn key to on position Engine will not start until pump engagement light is off Preparing Upperstructure for Remote Control Operation l Be sure controls in carrier cab have been properly set for remote control operation above 2 Be sure travel and steering pedals are in neutral position REMOTE CONTROLS IN UPPERSTRUCTURE TRANSMISSION SHIFT SWITCH AS a aom ENGINE STOP SWITCH ENGINE START SWITCH TRAVEL PEDAL 23 3 An air controlled throttle is provided to bring the engine RPM up to full governed RPM for upper structure operation 4 Be sure EMERGENCY BRAKE control is in OFF position How to Start Engine from Upper Cab l Start engine by depressing green start button Precautions for Remote Control Operation Be sure of clear visibility in direction of travel use a signalman to compensate for blind spots Be sure upperstructure swing brake functions properly before moving carrier in remote control Be sure of clear path for carrier boom and counterweight before starting to move Be especially watchful for overhead wires traffic Never tow load using remote control drive Always give audible signal before moving unit Never permit bucket to drag while moving unit R
34. or releasing accelerator and permitting carrier to push engine to slow travel take care to avoid overspeeding the engine exceeding governed RPM The governor has no control over engine speed when engine is being pushed by carrier load Select an appropriate gear ratio and use service brake to assist in slowing travel down steep grades Permitting the engine to labor under too great a load for the gear ratio being used lugging the engine will shorten engine life Shift to the proper gear ratio for conditions Avoid prolonged idling Idling causes engine tem perature to drop and this permits formation of heavy carbon deposits and dilution of lubricating oil by incompletely burned fuel If the engine is not being used turn it off CHECKS AFTER STARTING ENGINE To be performed at beginning of each work shift Complete all required maintenance before driving Check operation of windshield washer and 6 Observe water temperature gage Proper op wiper erating temperature is approximately 160 210 F 71 104 C Check all lights and turn signals for proper operation 7 Observe tachometer response to changes in engine speed Check operation of heater and defroster 8 Observe low air warning light Light should Observe oil pressure gage with engine running continue to glow until brake system pressure at operating temperature and speed reaches approximately 60 psi Do not release parking brake or move carrier while low a
35. otation of carrier steering wheel will occur during remote operation KEEP CLEAR Be sure travel alarm functions properly Front Axle Lock Cylinders Automatically Unlock in Travel Driving carrier from upperstructure cab A WARNING Avoid confusion Before actuating remote control travel pedal think about the direction you are facing with respect to the direction the carrier is facing Confusion could cause you to travel in the direction opposite that l Be sure controls in carrier and upperstructure cabs have been properly set for remote control Operation see previous page 2 Be sure engine is running at full throttle Carrier speed is controlled by gear selection and amount of pedal actuation 3 The travel pedal controls carrier travel depress front of pedal to travel forward or rear of pedal to travel in reverse The digging brake is auto matically released when the pedal is depressed and applied when the pedal is released Pedal Shifting Gears While in Remote Control It is possible to shift into your choice of the three lower gear ranges while operating in remote control from the upperstructure A rocker switch is provided on the joystick pedestal Pressing down one time on the front of the rocker will advance the shifter one gear higher Press it again and it will shift into third gear Pressing down on the rear of the shifter rocker switch will reverse the action and shift down one gear at a time The shi
36. rakes are applied unless traveling in remote 19 Remote control braking The digging brake is applied by the remote switch in the carrier cab The digging brake will be released and reapplied automatically as travel pedal in upperstructure is actuated and released ar To Aba EMERGENCY BRAKE 44 To R put An emergency brake control is located in the upperstructure cab This control is to be used in case of failure of the automatic digging brake If digging brake fails to apply when travel pedal is released raise emergency brake control to apply emergency brake Notify maintenance personnel immediately for repair of digging brakes Apply upperstructure emergency brake when leav ing upperstructure cab STEERING SYSTEM Conventional steering The power steering system provides low effort steering under normal conditions and greater control in the event of a blowout or soft ground Road feel is similar to that of a conventional manual steering system A CAUTION Use of power steering while carrier is stopped causes unnecessary stress on system components and can cause serious damage to system Holding steering wheel in full left turn or full right turn position will cause system to overheat This can cause steering pump to fail PN Remote control steering Your unit is equipped with a travel steering pedal in the upperstructure cab The engine must be running to provide power for remote
37. ront portion of the dual brake system normal actuation of the brake treadle valve will apply service brakes to the wheels of the rear axle There will be no braking on the BRAKE SYSTEM Con t EMERGENCY BRAKE APPLICATION pressure lost in rear IN BRAKE TREADLE ON FLOOR If the air pressure is lost from the rear portion of the dual brake system normal actuation of the brake treadle will apply service brakes to the wheels of the front axle and cause a controlled application of spring brakes to the wheels of the rear axle After pressure is lost from one portion of the dual brake system there may only be enough pressure in the other portion for one or two emergency brake applications When the available pressure has been used the spring brakes will apply automatically EMERGENCY BRAKE APPLICATION pressure lost in front and rear AUTOMATIC In the event air pressure is lost from both front and rear portions of the system there will be an automatic application of the spring brakes They will begin to apply as pressure drops to 60 p s i 414 kPa and there will be a complete application when pressure decreases to 40 p s 1 276 kPa Because air pressure is required to release spring brakes an automatic application will remain ON until air pressure can be restored 18 If the air pressure gages indicate some system pressure remaining it may be possible to drive the unit a short distance to remove it from a hazardo
38. smission assembly This feature creates a very smooth and shock free drive eliminating engine stalling 2 The converter multiplies torque during heavy pull down loads When loads are light the converter transmits the engine power directly at almost engine speed and there is no torque multiplication The net result is an action like a transmission with infinitely variable and automatic speed ratios The need for shifting gears although present is greatly reduced Downshifting During normal driving there are times when it is necessary to downshift shift from one gear or range to the next lower gear or range to decrease carrier speed or increase carrier power The procedure for downshifting is described below A CAUTION Never downshift when carrier speed will cause engine to overspeed in next lower gear or serious damage to engine may result Use service brake to slow carrier to proper speed for downshift if necessary KEEP CARRIER IN GEAR WHILE DRIVING COASTING IS DANGEROUS AND MAY CAUSE SERIOUS DAMAGE TO TRANSMISSION When to shift gears Smooth timely shifting not only increases carrier service life it provides greater driving safety In lower gears use only enough engine speed to get the carrier rolling easily High engine speeds under light load conditions waste fuel and cause excessive and unnecessary noise Use a little more engine speed for each successive upshift until reaching desired cruising speed Avo
39. ted accessories contain lead and lead compounds chemicals known to the State of California to cause cancer and birth defects or other reproductive harm Wash hands after handling CALIFORNIA Proposition 65 Warning Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer birth defects and other reproductive harm GRADALL 406 Mill Ave SW New Philadelphia Ohio 44663 Phone 330 339 2211 FAX 330 339 8468 hitp www gradall com Printed in USA
40. tical circle with forefinger pointing horizontally at open hand SWING With either arm extended horizontally point with forefinger to direction of swing rotation 35 ind CLOSE RUCKET f e hand closed and MOVE SLOWLY Place one hand motionless in THIS FAR TO GO With hands raised and open stationary Rotate other hand in small vertical circle front of hand giving motion signal Raise load inward move hands laterally indicating distance to with forefinger pointing horizontally at closed hand slowly is shown go EMERGENCY STOP With both armsextended STOP With either arm extended laterally hand open downward move arm back and forth End torti IF YOU GET STUCK If unit becomes stuck in soft ground you can use the boom to help free it Position carrier and upperstructure controls for remote control operation Position boom over rear of carrier centered over laterally hands open downward move arms back 36 STOP ENGINE Draw thumb or forefinger across throat rear to prevent tipping and imbed bucket in ground While actuating travel joystick in appropriate di rection extend or retract boom as required to help push or pull unit to solid ground Raise or lower boom as necessary to keep rear wheels in proper contact with ground G3WD GRADALL lan NE SEE s kar T B A JN ze Mitt iibi sie CALIFORNIA Proposition 65 Warning Battery posts terminals and rela
41. und Stop the engine Using a 1 1 2 wrench remove the four 1 cap screws from the stop blocks On the left side of the boom loosen the four 1 capscrews which hold the two boom mounting brackets These bolts should be loosened as far as possible without removing them Lubricate slide areas of boom if needed Start the engine in the upper cab and engage the off on switch activating the joysticks Make sure bucket is level and wedged into the ground Pull back on the boom in out joystick The boom should start sliding Continue sliding the boom until contact is made against the rear stop blocks Stop the engine 6 Place the four 1 cap screws removed from the front stop blocks into the rear stop blocks Tighten these four cap screws 7 Tighten the four cap screws that hold the two mounting brackets 8 To obtain adequate bolt torque use a cheater bar with the 1 1 2 wrench or socket A 3 cheater bar should be enough to obtain ap proximately 200 ft Ib of torque on the bolts at the mounting brackets and about 600 ft Ib of torque on the bolts at the stop blocks Use a torque wrench 9 The boom is now in the extended position and ready for digging HOW TO RETRACT THE SLIDE A BOOM Reverse the above process except use the boom out joystick when retracting the boom CAUTION Correct torque is important Do not over torque under torque bolts IR 600 FT LBS j ATTACHMENT INSTALLATION A WARNI
42. us position use first gear only If carrier cannot be moved direct traffic around carrier until warning flags flares or lights can be displayed Notify proper authorities and maintenance personnel as soon as possible Parking brake Apply parking brake by raising parking brake control knob This causes air pressure to be vented from spring chambers allowing springs to apply brakes to wheels of the rear axle Knob will raise automatically if air pressure is lost from front and rear portions of system PARKING BRAKE APPLICATION PARKING BRAKE BUTTON S lt ON CARRIER DASH te Release parking brake by depressing parking brake control knob system must be pressurized to release parking brake Digging brake When activated the digging brake is applied to all Wheels to hold the carrier stationary while the excavator is digging Air pressure requirements for digging brake application are not the same as those for the service brake 60 to 85 p s i 414 to 586 kPa If pressure is lost after the digging brake has been applied emergency brakes will be applied automatically Digging brake Con t DIGGING BRAKE APPLICATION REMOTE TRAVEL SWITCH ON CARRIER DASH A WARNING Do not activate remote switch while traveling See page 23 for preparing carrier for remote operation As the remote switch is depressed the digging brakes are automatically applied Anytime the remote signal light is lit the b
43. vel Gear S2 C1 S6 Third Travel Gear S2 C1 S5 Fourth Travel Gear S3 C1 S6 Fifth Travel Gear S3 C1 S5 Sixth Travel Gear THE GRADALL COMPANY Y4 remote mode G3WD a mode shire caters THE GRADALL COMPANY T4 remote mode T2 engine off G3WD T1 low alr travel mod C shift pattern Indicator MNA T oe EE Ti low pu travel mode shift pattern PE i CJ MERI THE GRADALL COMPANY T4 remote mode T2 engine off G3WD Ti iow alr travel mode C shift pattern indicator THE GRADALL COMPANY T4 remote mode G3WD T2 engine off T1 low air travel mode shift pattern indicator ci 4 3 5 RR s6 s5 MER DER THE GRADALL COMPANY T4 remote mode T2 engine off G3WD T1 low air travel mode Shift pettern ndicater MSN Sa C2 T4 The following lights are lit when the remote control switch is depressed to show the gear ratio being used The shift lever in the carrier cab will not move With engine running and in remote lights C 2 T4 and Neut Start will be lit C2 is always lit S1 C2 C3 amp TA First Remote Gear S2 C2 C3 amp T4 Second Remote Gear S3 C2 C3 amp T4 Third Remote Gear THE GRADALL COMPANY T4 remote mode G3WD HET mode shift pa radi c3 S CE V RA THE GRADALL COMPANY T4 remote mode G9WD T2 engine off T1 low air travel mode C shift pattern 3 HA as US 4 3 S2
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