Operators Manual
Contents
1. 1 1 AbbreviationS existentem 1 3 Use Of Shall Will Should And May 1 1 MES34 Overview 1 4 MANUAL USAGE This technical manual only contains information required to safely install or service an MES34 elevator scraper system See the CAT 631 Operator s Safety Manual for tractor specific system information and operating procedures If your system is not covered in this manual or you are experiencing difficulties please contact MEGA Corp Product Support Group at US toll free 1 800 345 8889 Direct 1 505 345 2661 or visit our website at www megacorpinc com for more detailed contact information The exact location of the hazards and description of the hazards are reviewed in this section All personnel working on or operating the machine must become familiarized with all the safety messages Due to the nature of these processes ensure that all safety information warnings and instructions are read and understood before any operation or any maintenance procedures are performed Some procedures take place with heavy components and at moderate heights ensure proper safety procedures are maintained when performing these actions Failure to use and maintain proper safety equipment and procedures will cause injury death or damage to equipment WARNING CAUTION AND NOTES The following definitions are found throughou2. 5 4 21 SAC _ it t PAPARA ir 5 p eS Cet 0 5 10 15 20 25 30 35 mph DECIES m 0 5 10 15 20 25 30 35 40 45 50 55 km h Figure 5 1 Gradeability Speed Rimpull 5 1 34 1 21 Feb 2014 SECTION 5 Performance RETARDING 631 Gross Weight 30 40 50 60 70 80 kg x 1000 75 100 125 150 175 Ib x 1000 30 22 16 10 Begg Lo 5 para 1 5 10 15 20 25 30 35 mph Lo LLL os sm EE EEE 0 5 10 15 20 25 30 35 40 45 50 55 60 km h Figure 5 2 Retarding e 5 2 SECTION 6 Appendix MES34 OPS CL 1 21 Feb 2014 LINN MEGA NES MES34 OPERATOR S CHECKLIST MES34 OPS 1 21 Feb 2014 MES34 OPS 1 21 Feb 2014 SECTION 6 Appendix MES34 OPS CL 1 21 Feb 2014 TABLE OF CONTENTS Title Page 1 BEFORE OPERATIONS N 2 2 OPERATIONS 3 AFTEROPERATIONS N 14 PES N 1 2 1 6 2 SECTION 6 BEFORE OPERATIONS MES34 OPS CL 1 21 Feb agia These procedures are used to perform a walk around inspection of the MES34 before use or beginning of the shift This inspection is in addition to and does not requirements found in the 631G Operation amp Maintenance Manuals 1 2 8 replace the 6316 tractor inspection Chocks As Required Vehicle Parking Brake ON Gear Selector Lever N Neutral Cab Control Switc
3. EMERGENCY BRAKE THEORY OF OPERATION The emergency brake theory of operation is the same as the parking brake except for the means of activation Activation is accomplished by using the emergency brake foot switch located on the floor of the tractor cab just left of the service brake pedal 2 8 MES34 OPS 1 21 Feb 2014 SECTION 3 Limitations Contents Gross Vehicle 1 3 1 Engine amp Transmission 3 1 Operator s Seat GROSS VEHICLE WEIGHT Do not exceed 195 656 165 80 80495 GVW OPERATOR S SEAT When you operate the machine in very rough ground conditions or at travel speeds not suitable for the ground conditions this may result in excessive seat vertical travel with impact of the suspension against the travel stops which may cause injury Do not operate the machine on ground conditions and at travel speeds that could result in the seat suspension travel stops being contacted In order to minimize impact loading on the operator properly adjust the seat controls based upon your weight and based upon your height Refer to the 631G Operation and Maintenance Manual Seat for more information ENGINE amp TRANSMISSION Do not allow the engine to overspeed when you go downhill Do not disengage the transmission while you are travelling downhill If equipped use the retarder control to reduce engine overspeed when you are going downhill If your machine is
4. between the machine and attachments Pinch points and attachments will cause serious injury or death 2 Mirrors ADJUST 3 Engine START 4 Operators Seat ADJUST Only operate the machine while you are seat with a fastened seat belt Only operate the controls while the engine is running 5 Steering Column ADJUSTED 6 Seat Belts FASTENED 7 Bowl RAISE 34 1 21 Feb 2014 SECTION 6 Appendix MES34 OPS CL 1 21 Feb 2014 8 Cushion Hitch ENGAGE AS REQUIRED Actuation of the cushion hitch or steering control can cause movement in the hitch area reducing clearances suddenly Personal injury or death can result from hitch movement if a person is in the hitch area 9 Service Brake Pedal DEPRESS To prevent machine from moving 10 Parking Brake RELEASE 11 Transmission Control Lever MOVE TO DESIRED DIRECTION AND APPROPRIATE GEAR SPEED For operator comfort and maximum service life of power train components deceleration and or braking is recommended before any directional shifts are made 12 Service Brake RELEASE 13 Throttle Pedal DEPRESS UNTIL DESIRED ENGINE SPEED IS ACHIEVED MES34 OPS CL 1 21 Feb 2014 SECTION 6 Appendix 14 Drive the machine forward in order to have the 15 best visibility and the best control While you operate the machine slowly in an open area check for proper operation of all contr
5. mounting system that protects the flights and cutting edge from rocks and other large objects by swinging up then quickly returning back down to continue loading the bowl Elevator Adjusters Draft Arm Elevator Swing Up The flights are constructed of steel plates and perform the actual conditioning and loading of the materials The flights are connected to dual drive chains that are driven by a single high torque hydraulic drive motor through the speed reducer MES34 OPS 1 21 Feb 2014 SECTION 2 System Description DRAFT FRAME ASSEMBLY xX Tw a v gt 75 t ANS E REAR BOGIE ASSEMBLY The bogie is a structural steel tube frame and plating that mounts to the rear wall of the scraper bowl The assembly provides mounting for the rear wheel groups rear brake system rotating floor cylinders and tail lights The rear of the bogie also incorporates a push type bumper assembly The rear bumper design provides a pushing point to assist the MES34 up a grade or in poor underfoot conditions wet muddy or icy haul road The bumper assembly is designed to be pushed straight on by the pushing boosting machine CAUTION Routine HARD bumper contacts by the pushing boosting machine will cause structural fatigue and result in reduced bogie service life CAUTION Angled blade contact of the bumper will reduce bull dozer blade to MES34 wheel clearance Extreme blade angles will cause bla
6. 6 mm 47 6 6 Overall shipping height 3 975 mm 131 13 Length from rear axle to rear 3 152mm 7 1 7 Height to top cab 3 715 122 MES34 Empty Weight 113 456 LBS 46 475 KG Loaded Weight 195 656 LBS 80 495 KG 34 1 21 Feb 2014 SECTION 4 Normal Operations BEFORE OPERATIONS These procedures are used to perform a walk around inspection of the MES34 before use or beginning of the shift This inspection is in addition to and does not replace the CAT 631G tractor inspection requirements found in the 631G Operation amp Maintenance Manuals 1 Chocks As Required 2 Vehicle Parking Brake ON 3 Gear Selector Lever Neutral 4 Cab Control Switches SET AS REQUIRED 5 Cab Windows DAMAGE AND CLEANLINESS 6 LH Tractor DAMAGE SECURITY AND LEAKS 7 Front of Tractor DAMAGE SECURITY AND LEAKS 8 Machine Kill Switch OFF 9 Hydraulic Reservoir Level CHECKED 10 Machine Lock out Switch ON 11 RH Tractor DAMAGE SECURITY AND LEAKS 12 King Pin Transmission and Gooseneck DAMAGE SECURITY SERVICING AND LEAKS 13 Fuel Tank Gooseneck Implement Valve Assembly and Hosing DAMAGE SECURITY AND LEAKS 14 Bowl Cutting Edge Lift Cylinders and Hosing DAMAGE SECURITY AND LEAKS 15 Elevator Assembly Floor Assembly and Bowl Interior DAMAGE AND SECURITY 16 RH Exterior Bowl Structure Mud Flaps and Draft Arm DAMAGE AND SECURITY 17 Rear Bogie Tires and Floor Cylin
7. ED 2 Parking Brake APPLIED 3 Gear Shift Lever NEUTRAL 4 Engine OFF 5 Inspect the engine compartment for debris Clean out any debris in order to avoid a fire hazard 6 Remove all flammable debris from the front bottom guard through the access doors in order to reduce a fire hazard Discard the debris properly 7 Turn the key for the battery disconnect switch to the OFF position When the machine is left for an extended period of one month or longer you should remove the key This will help to prevent a battery short circuit Removing the key will also help to protect the battery from vandalism and from the current draw that is made by certain components 8 Perform a walk around inspection of the entire machine looking for damage security leaks and servicing 9 Lock all vandalism covers and all compartments MES34 OPS 1 21 Feb 2014 SECTION 5 Performance Contents 5 1 M 5 2 Gradeability Speed Rimpuill 5 1 DESCRIPTION This section contains ME934 performance data GRADEABILITY SPEED RIMPULL 631G Gross Weight 37 25R35 Tire 15 20 30 40 50 6070 90 kgx 1000 kg x X 1000 1000 120 160 200 lb x 1000 65 45 100 H BL s 20 40 0a s OCURRE EN e EM zz RIBIP2 2 2 10 7 20 APA 10 5 15 ES 252 UR SS 8 10 s d d 5 2 24 s i 4
8. JIC UF 9 SPECIALTY HAULAGE SOLUTIONS FOR CONSTRUCTION AND MINING 8 perato nual gt 2 NEST GLA i c c wm ccce MC aa Pa 5 2 gt ed By Su FS sak Gt E MEGA CORP 700 Osuna Albuquerque NM 87113 1 800 345 8889 505 345 2661 Fax 505 345 6190 www megacorpinc com MEGA Corp Inc All Rights Reserved hrs 4 CER P GR lt Sf 1 4 4 38 k v 2 4 2 3 gt bm 4 lt 4 A amp f wat Bh a EO R a EX MES34 OPS 1 21 Feb 2014 TABLE OF CONTENTS Page Section 1 Definitions and Abbreviations 1 1 ecuon2 SystemiDescriDLIDDI bi ee to M SE 2 1 SECUS LIMIANO 3 1 Section 4 Normal 4 1 5 1 Section 6 534 Operators 6 6 1 MES34 OPS 1 21 Feb 2014 TABLE OF CONTENTS B Blank MES34 OPS 1 21 Feb 2014 SECTION 1 Definitions and Abbreviations Contents Manual 1 1 Safety Messages nons 1 2 Warning Caution And lt
9. LIED Gear 9hift Lever NEUTRAL Engine OFF Inspect the engine compartment for debris Clean out any debris in order to avoid a fire hazard Remove all flammable debris from the front bottom guard through the access doors in order to reduce a fire hazard Discard the debris properly SECTION 6 MES34 OPS CL 1 21 Feb 2014 7 Turn the key for the battery disconnect switch to the OFF position When the machine is left foran extended period of one month or longer you should remove the key This will help to prevent a battery short circuit Removing the key will also help to protect the battery from vandalism and from the current draw that is made by certain components 8 Perform a walk around inspection of the entire machine looking for damage security leaks and servicing 9 Lock all vandalism covers and all compartments MES34 OPS 1 21 Feb 2014 MES34 OPS 1 21 Feb 2014 SECTION 6 Appendix 6 12 Blank
10. cally by the auger pump as commanded by the implement joystick thumb switch motor is mounted to the speed reducer that drives the elevator upper sprocket assembly MES34 OPS 1 21 Feb 2014 SECTION 2 System Description IMPLEMENT PUMP The multi section gear type pump mounted on the tractor transmission accessory section The pump provides hydraulic power to the implement valve assembly to operate floor and bowl lift systems as commanded by the implement stick IMPLEMENT CONTROL VALVE ASSEMBLY The implement control valve is mounted to the fuel tank and provides hydraulic control for bowl rotating floor and elevator functions as commanded by the implement joystick It also contains several pressure sensors to provide feedback for rotating floor auto functions BOWL LIFT CYLINDERS The two bowl hydraulic cylinders work together to raise and lower the bowl assembly The cylinders _ are attached to the draft tube and lower bowl edge The cylinders receive hydraulic pressure from the implement control valve as commanded by the implement control stick Floor Cylinders The two hydraulic cylinders work together to open or close the bowl floor assembly The cylinders are attached to the J link and the rear bogie IMPLEMENT JOYSTICK The joystick is located on the right side console and provides controls for elevator bowl cushion hitch and differential lock functions See the CAT Operators ma
11. de bit to wheel contact and damage MES34 tires MES34 and pushing boosting machine operators must communicate to ensure correct contact and maximum wheel to blade bit clearance is maintained The draft frame assembly is comprised of a gooseneck fuel tank and draft arms This assembly along with two sets of hydraulic cylinders is what turns the unit and raises and lowers the bowl assembly The assembly also provides mounting for implement control valve assembly hydraulic housing electrical harnesses protective guards and work light GOOSENECK The gooseneck is made up of vertical hitch pin and steering cylinder castings a 12 top plate 34 side plates and 11 2 bottom plate The vertical hitch pin attaches to the tractor and provides the pivot point for the steering of the unit The back side of the gooseneck attaches to the fuel tank to create mounting for the draft arms 34 1 21 Feb 2014 SECTION 2 System Description ju FUEL Right Hand Side Left Hand Side fuel tank is constructed 26 mechanical tube two 1 5 thick flanges The tank has 250 gallon capacity with internal baffling to prevent sloshing The tank contains a fuel quantity sensor gravity fill port and the fast fill fuel system The tank also provides mounting for the draft arms implement control valve and the bowl li
12. ders DAMAGE SECURITY AND LEAKS 18 Brake Air Tanks DRAIN VALVES CLOSED 19 LH Exterior Bowl Structure Mud Flaps and Draft Arm DAMAGE AND SECURITY 20 Elevator Drive Motor and Speed Reducer DAMAGE SECURITY AND LEAKS OPERATIONS Use these procedures to safely operate the standard and optional systems installed on the MES34 Check for machine 1 adequate clearance around the Before you maneuver the machine make sure that no personnel are between the machine and attachments Pinch points and attachments will cause serious injury or death Mirrors ADJUST Engine START Operators Seat ADJUST Only operate the machine while you are in a seat with a fastened seat belt Only operate the controls while the engine is running Steering Column ADJUSTED Seat Belts FASTNED Bowl RAISE Cushion Hitch ENGAGE AS REQUIRED Actuation of the cushion hitch or steering control can cause movement in the hitch area reducing clearances suddenly Personal injury or death can result from hitch movement if a person is in the hitch area 9 MES34 OPS 1 21 Feb 2014 SECTION 4 Normal Operations Service Brake Pedal DEPRESS prevent machine from moving Parking Brake RELEASE Transmission Control Lever MOVE TO DESIRED DIRECTION AND APPROPRIATE GEAR SPEED For operator comfort and maximum service life of power train components deceleration and or braking is recommended before a
13. educe engine speed when you maneuver in tight quarters or when you are going over a hill Select the appropriate travel speed before you begin to drive the machine downhill Do notshift the transmission control while you are going downhill MES34 OPS 1 21 Feb 2014 SECTION 6 Appendix MES34 OPS CL 1 21 Feb When you drive the machine downhill use the same gear speed that would be used to drive the machine uphill Do not operate the machine when the parking brake is applied Loading the machine in a straight line is preferred Do not overload the bowl Do not operate the machine without normal air pressure Do not allow the engine to overspeed when you go downhill Do not disengage the transmission while you are travelling downhill If equipped use the retarder control to reduce engine overspeed when you are going downhill If your 6 9 MES34 OPS 1 21 Feb 2014 SECTION 6 Appendix MES34 OPS CL 1 21 Feb 2014 machine is not equipped with a retarder control use the service brake control to reduce engine overspeed when you are going downhill Never coast the machine AFTER OPERATIONS Perform these procedures after the end of the shift or end of the day These steps are in addition to and do not replace the CAT631G after operation requirements established in the Operation and Maintenance Manual 1 2 Machine STOPPED Parking Brake APP
14. emicals could loosen the adhesive that secures the safety messages Loose adhesive will allow the safety messages to detach Replace any safety message that is damaged or missing If a safety message is attached to a part that is replaced install a new safety message on the replacement part DO NOT OPERATE 1 This safety label is located on the outside of the cab Do not open this control box unless you read and understand the instructions and warnings in the Operator and Maintenance Manual Failure to follow instructions or heed the warnings could result in serious injury or death The vehicle is equipped with a back up alarm Alarm must sound when operating this vehicle in reverse Failure to maintain a clear view in the direction of travel could result in serious injury or death FALL HAZARD 3 This safety label is located at the top of the scraper Ensure PPE fall arrest harness is worn adjusted properly and attached to an anchor point when performing maintenance on top of the MES34 or when fall hazards are present Failure to use PPE when fall hazards are present may result in serious personnel injury or death MES34 OPS 1 21 Feb 2014 SECTION 1 Definitions and Abbreviations HIGH PRESSURE MOTOR 4 This safety label is located on the hydraulic motor Hydraulic motor and supply lines contain oil under high pressure Improper removal and repair procedures could cause severe injury To remove or r
15. epair instructions in the Maintenance Manual must be followed ABBREVIATIONS ft feet fom feet per minute gpm gallons per minute GET Ground Engaging Tools KM H Kilometers Hour Kg kilograms liters lpm liters per minute LT Left M meters MES MEGA Elevating Scraper MPH Miles Per Hour PPE Personnel Protective Equipment psi pounds square inch RPM Revolutions Per Minute RT Right SQ FT Square Feet 34 1 21 Feb 2014 SECTION 1 Definitions and Abbreviations MES34 OVERVIEW TYPICAL TOP VIEW 631G TRACTOR DRAFT FRAME ASSEMBLY ELEVATOR ASSEMBLY SPILL GUARD REAR BOGIE ELEVATOR DRIVE MOTOR SPEED DECREASER FUEL TANK IMPLEMENT VALVE MES34 OPS 1 21 Feb 2014 SECTION 2 System Description Contents DSS 2 1 Draft Frame 5 1 2 3 SClaper oW dq oin 2 1 Electrical System 2 4 Rotating F OOM 2 2 Hydraulic System 2 4 Elevator Assembly eese 2 2 Implement Joystick esses 2 5 Rear Bogie Assembly 2 3 Rear Brake System 4 440 20 40 2 004000 0 0 04040444 2 6 DESCRIPTION SCRAPER BOWL The MEGA 34 cubic yard elevating scraper MES34 is a high production unit designed for heavy duty continuous load haul spread operations It i
16. essure applied to the brake pods as commanded by a pneumatic signal pressure by activating the service brake pedal located in the tractor cab 2 7 pneumatic cylinder designed to extend or retract and apply service parking or emergency 2 brakes The pods are 7 mounted to the MES rear mE su A _ bogie and are connected to the wheel group brake activation lever The pod contains a coil spring and responds to pressure received from the brake relay valve as commanded by service brake pedal The pod will also apply parking or emergency brakes when one side of the cylinder is depressurized when commanded by the activation of the parking or emergency brakes Loss of pneumatic pressure allows the brake pod coil spring to extend the rod end Hy PARKING BRAKE THEORY OF OPERATION The parking brake is applied by activating the parking brake switch in the tractor cab Once the switch is moved to the park position an electrical signal is sent to the parking brake solenoid valve mounted on the rear bogie pneumatic manifold The sent signal will open the solenoid valve allowing pneumatic pressure to decrease from one side of the brake pod The brake pod coil spring can now overcome air pressure and extend the brake pod rod end attached to the wheel group brake lever and apply the brakes Once parking brake pneumatic pressure drops below allowable limits the parking brake pressure switch mounted on the pneumatic manifold will c
17. ft cylinders DRAFT ARMS The draft arms connect the draft frame to the bowl They are constructed from steel plates mechanical tube and cast steel trunnion bearings The arms connect at the trunnions and create a pivot point between the draft frame and the bowl for raising and lowering the cutting edge of the bowl ELECTRICAL SYSTEM The electrical system of the scraper bowl assembly is fully integrated with the existing tractor systems These sub systems consist of all tail braking and turn signal lights implement controls and all brake indicating and warning systems HYDRAULIC SYSTEM The hydraulic power used to operate all scraper bowl functions comes from several components mounted on the tractor and bowl assembly These components consist of an auger pump elevator drive motor implement pump implement control value assembly bowl lift cylinders and floor cylinders The pump is mounted on the tractor transmission accessory section and provides hydraulic power to the elevator drive motor The pump is a variable displacement type pump with hydraulic output being controlled by the tractor ECM The tractor ECM will maintain the operators selected elevator speed within a desired range This is accomplished by ECM resident software designed to control pump output based on a selected elevator speed See CAT Operator and Maintenance manuals for more information ELEVATOR DRIVE MOTOR The drive motor is powered hydrauli
18. hes SET AS REQUIRED Cab Windows DAMAGE AND CLEANLINESS LH Tractor DAMAGE SECURITY AND LEAKS Front of Tractor DAMAGE SECURITY AND LEAKS Machine Kill Switch OFF Hydraulic Reservoir Level CHECKED 10 Machine Lock out Switch ON MES34 OPS 1 21 Feb 2014 MES34 OPS 1 21 Feb 2014 SECTION 6 Appendix reer MES34 OPS CL 1 21 Feb 2014 11 RH Tractor DAMAGE SECURITY LEAKS 12 King Pin Transmission and Gooseneck DAMAGE SECURITY SERVICING AND LEAKS 13 Fuel Tank Gooseneck Implement Valve Assembly and Hosing DAMAGE SECURITY AND LEAKS 14 Bowl Cutting Edge Lift Cylinders and Hosing DAMAGE SECURITY AND LEAKS 15 Elevator Assembly Floor Assembly and Bowl Interior DAMAGE AND SECURITY 16 RH Exterior Bowl Structure Mud Flaps and Draft Arm DAMAGE AND SECURITY 17 Rear Bogie Tires and Floor Cylinders DAMAGE SECURITY AND LEAKS 18 Brake Air Tanks DRAIN VALVES CLOSED 19 LH Exterior Bowl Structure Mud Flaps and Draft Arm DAMAGE AND SECURITY 20 Elevator Drive Motor and Speed Reducer DAMAGE SECURITY AND LEAKS MES34 OPS 1 21 Feb 2014 SECTION 6 Appendix MES34 OPS CL 1 21 Feb 2014 OPERATIONS Use these procedures to safely operate the standard and optional systems installed on the MES34 1 Check for adequate clearance around the machine Before you maneuver the machine make sure that no personnel are
19. lose and illuminate the parking brake warning light in the cab of the tractor The parking brake is released by activating the parking brake switch Once the switch is moved an electric signal is sent to close the parking brake solenoid valve The valve closing will allow pneumatic pressure from the pneumatic manifold to be routed to the brake pod This pressure increase will eventually overcome the brake pod coil spring and retract the brake pod cylinder rod end attached to the brake pod releasing the brakes As pressure increases above allowable limits the parking brake pressure switch will turn off the parking brake warning light in the tractor cab once pressure is above allowable limits MES34 OPS 1 21 Feb 2014 SECTION 2 System Description SERVICE BRAKE THEORY OF OPERATION The service brake is applied by pressing down on the service brake pedal in the tractor cab Pressing down on the pedal will send a pneumatic pressure signal to the service brake relay valve mounted on the rear bogie The sent signal will release pneumatic pressure from the brake pod chamber allowing the pod coil spring to extend the rod end and apply service brakes The service brake is released by releasing the brake pedal Once the pedal released a pneumatic signal is received by the brake relay to increase air pressure to the brake pod As pneumatic pressure increases the force of the brake pod coil spring is overcome and the service brake is released
20. ne when brake supply pressure drops below allowable limits TANK PRESSURE SE MES34 OPS 1 21 Feb 2014 SECTION 2 System Description BRAKE PODS PNEUMATIC MANIFOLD ASSEMBLY A pneumatic manifold mounted in the rear bogie used to route pneumatic pressure for service parking and emergency brake operation The manifold also provides mounting for a check valve parking brake emergency solenoid and parking brake pressure switch CHECK VALVE A spring operated valve allowing air flow in only one direction The valve is located with the pneumatic manifold assembly in the rear bogie PARKING EMERGENCY BRAKE SOLENOID A 24 VDC electrical solenoid that opens or closes to control the parking or emergency brake function The solenoid valve responds to electrical signals as commanded by the parking or emergency brake in the tractor cab The solenoid valve will open to bleed off parking emergency brake release pressure from the brake pods This release of air pressure will cause the parking emergency brakes to be applied PARKING BRAKE PRESSURE SWITCH A 24 VDC pressure switch used to illuminate the parking brake warning light in the tractor cab The sensor will turn on the parking brake warning light when parking brake release pressure drops below allowable limits SERVICE BRAKE RELAY VALVE A pneumatic relay valve that controls and routes air tank activation pressure to both brake pods The relay controls air pr
21. not equipped with a retarder control use the service brake control to reduce engine overspeed when you are going downhill Never coast the machine 3 1 MES34 OPS 1 21 Feb 2014 SECTION 3 Limitations 3 2 Blank MES34 OPS 1 21 Feb 2014 SECTION 4 Normal Operations Contents TON RET 4 1 4 2 Weights and 1 lt 4 1 After Operations 4 4 Before Operations eerte 4 2 DESCRIPTION The MES34 normal operating procedures mirror the This section provides the vehicle operator with step by step procedures used to operate the MES34 system only See the CAT631 G Operators manual for specific tractor operations and system details established CAT format of operations The procedures are separated into before operations operations and after operations A pocket size checklist of all MES34 procedures is contained in the Appendix for use in the vehicle cab WEIGHTS AND DIMENSIONS 1 Overall machine width 4 048 mm 13 3 8 Tractor ground clearance 665 mm 22 2 Tractor width 3 48imm 11 5 9 Length from front of axle to front 3 359 mm 1 0 3 Width ta center of rear tires 2 464 mm 81 10 Axle to vertical hitch pin 548 mm 1 10 4 Width to inside of bow 3 405 mn 11 27 11 Wheelbase 8 955 mm 29 5 5 Width to outside of tires 3 636 mm 11 11 12 Overall machine length 14 46
22. nuals for specific information pertaining to cushion hitch and differential lock functions Down Open 2 Close Up Implement Joystick function are as follows 1 Bowl Control Joystick Forward amp Hold lowers bowl Rear amp Hold raises bowl Releasing the joystick from a commanded position will hold the bowl in the current position 34 1 21 Feb 2014 SECTION 2 System Description 2 Floor Control Joystick Left amp Hold opens floor fully Right amp Release auto closes floor Auto close can be interrupted by commanding floor open and release 3 Elevator Control Thumb switch Left elevator rotates to load Right elevator rotates to unload Speed increases the further the thumb switch is moved from center If a different elevator direction is desired with cruise control on elevator will delay for about 3 seconds before reversing direction Transmission Hold Outer Push Button 13 Push amp Release prevents the transmission from shifting When the transmission hold is engaged an indicator light will illuminate on the front dash 219 Push amp Release normal shifting is resumed 5 Cushion Hitch Inner Push Button 1 Push amp Release enables cushion hitch 2nd Push amp Release disables cushion hitch Elevator On Off Resume Trigger Switch Pull bottom of trigger engages cruise control and holds e
23. ny directional shifts are made Service Brake RELEASE Throttle Pedal DEPRESS UNTIL DESIRED ENGINE SPEED IS ACHIEVED Drive the machine forward in order to have the best visibility and the best control While you operate the machine slowly in an open area check for proper operation of all controls and all protective devices When you operate the machine in very rough ground conditions or at travel speeds not suitable for the ground conditions this may result in excessive seat vertical travel with impact of the suspension against the travel stops which may cause injury Do not operate the machine on ground conditions and at travel speeds that could result in the seat suspension travel stops being contacted In order to minimize impact loading on the operator properly adjust the seat controls based upon your weight and based upon your height Refer to the 631G Operation and Maintenance Manual Seat for more information There is restricted visibility to the area directly behind the machine Failure to make sure the area is clear could result in injury or death Use a second person on the ground to make sure that 4 3 the area is clear before you operate the machine in the REVERSE position The cushion hitch should be turned on at all times except when you are loading materials or when you are dumping materials When the cushion hitch is turned OFF depth of cuts will be more even and material will s
24. ols and all protective devices When you operate the machine in very rough ground conditions or at travel speeds not suitable for the ground conditions this may result in excessive seat vertical travel with impact of the suspension against the travel stops which may cause injury Do not operate the machine on ground conditions and at travel speeds that could result in the seat suspension travel stops being contacted In order to minimize impact loading on the operator properly adjust the seat controls based upon your weight and based upon your height Refer to the 631G Operation and Maintenance Manual Seat for more information There is restricted visibility to the area directly behind the machine Failure to make sure the area is clear could result in injury or death Use a second person on the ground to make sure that MES34 OPS 1 21 Feb 2014 34 1 21 Feb 2014 SECTION 6 Appendix MES34 OPS CL 1 21 Feb 2014 the area is clear before you operate the machine in the REVERSE position The cushion hitch should be turned on at all times except when you are loading materials or when you are dumping materials When the cushion hitch is turned OFF depth of cuts willbe more even and material will spread more smoothly during unloading This will help you to achieve faster cycle times The elevator does not need to be running when you are unloading fine material R
25. onal wear plates that increase bowl service life All hydraulic hoses and electrical cables for the rear bogie functions are routed inside the right bowl wall to the front of the bowl to eliminate the need for component shielding Rubber shrouds are installed on the outer side walls to prevent wedging of material between draft arms and outer bowl walls in turn protecting draft arms and trunnion ball mounts from cracking 34 1 21 Feb 2014 SECTION 2 System Description ROTATING FLOOR The rotating floor also utilizes a cellular design in its construction for added strength and dent resistance Two large hydraulic cylinders connected to the j link rotate the door smoothly allowing for precise spreading of materials The floor is designed with close tolerances to the bowl for optimal material removal helping create a work alone piece of machinery The elevator assembly conditions loads materials into the scraper bowl The assembly consists of an elevator frame draft arms a speed reducer sprockets chains chain adjusters idlers and flights The upper corners of the frame is designed with a two piece steel casting that provides mounting for the elevator drive system as well as lever type elevator adjusters The frame incorporates draft arms which are used to mount the assembly to the inside of the scraper bowl The draft arms working in together with the elevator adjusters creates a
26. pread more smoothly during unloading This will help you to achieve faster cycle times The elevator does not need to be running when you are unloading fine material Reduce engine speed when you maneuver in tight quarters or when you are going over a hill Select the appropriate travel speed before you begin to drive the machine downhill Do not shift the transmission control while you are going downhill When you drive the machine downhill use the Same gear speed that would be used to drive the machine uphill Do not operate the machine when the parking brake is applied Loading the machine in straight line is preferred Do not overload the bowl Do not operate the machine without normal air pressure 34 1 21 Feb 2014 SECTION 4 Normal Operations Do not allow the engine to overspeed when you go downhill Do not disengage the transmission while you are travelling downhill If equipped use the retarder control to reduce engine overspeed when you are going downhill If your machine is not equipped with a retarder control use the service brake control to reduce engine overspeed when you are going downhill Never coast the machine AFTER OPERATIONS Perform these procedures after the end of the shift or end of the day These steps are in addition to and do not replace the CAT631G after operation requirements established in the Operation and Maintenance Manual 1 Machine STOPP
27. s capable of performing thin precise lifts as well as heavy excavation with little support equipment This new scraper bowl is combined with a current production 631G scraper tractor and wheel groups to provide the latest in power train operator comfort electronic controls and emissions compliance The scraper bowl assembly design has been changed from previously fielded systems to provide increased reliability in severe duty applications All scraper bowl assembly hydraulics brakes electrical controls indicating and warning systems are integrated into the existing 631G tractor control groups The scraper bowl assembly is comprised of a scraper bowl rotating floor elevator rear bogie wheel groups and a draft frame assembly 2 1 The scraper bowl has a 34 cubic yard 26 cubic meter heaped capacity for haulage and an adjustable full width cutting edge for precise cutting and heavy excavating The bowl cutting edge is designed to support a variety of Caterpillar Ground Engaging Tools GET The scraper bowl utilizes a cellular design in its construction to add strength and dent resistance to the bowl sides The cellular side wall construction also provides for mounting of several of the moving and stationary bowl components These include the rotating floor elevator frame mount arms gooseneck draft arm trunnions bowl lift cylinders as well as rear bogie assembly Provisions are also available for opti
28. t the manual and apply as follows Operating procedures and techniques which could result in personal injury and or loss of life if not carefully followed Operating procedures and techniques which could result in damage to equipment if not carefully followed Operating procedures and techniques that are considered essential to emphasize USE OF SHALL WILL SHOULD AND MAY Shall and Will Used when application of a procedure is mandatory Should Used when application of a procedure is recommended May Used to indicate an acceptable or suggested means of accomplishment 34 1 21 Feb 2014 SECTION 1 Definitions and Abbreviations BACKING RUNOVER HAZARD 2 This safety label is located on the rear of the scraper and inside the cab SAFETY MESSAGES There are several specific safety messages on this machine The exact location of the hazards and description of the hazards are reviewed this section All personnel working on or operating the machine must become familiarized with all the safety messages Make sure that all of the safety messages are legible Clean the safety messages or replace the safety messages in you cannot read the words Replace the illustrations if the illustrations are not legible When you clean the safety messages use a cloth water and soap Do not use solvent gasoline or other harsh chemicals to clean the safety messages Solvents gasoline or harsh ch
29. xisting elevator direction and speed selected by thumb switch If speed and direction was previously set pulling the trigger will reestablish previous settings Push top of trigger disengages cruise control REAR BRAKE SYSTEM The MES rear brake system is integrated with the existing 631G tractor parking service and emergency brakes All three systems are activated with the existing brake controls located in the tractor cab See the CAT 631G Operator and Service Manual for additional tractor brake information The MES rear brake system consists of a wheel group two additional air tanks pneumatic manifold assembly pneumatic brake relay valve brake pods solenoid valve pressure switch pressure sending unit and hosing AIR TANKS B The MES is equipped with two air tanks mounted in the rear bogie that store 100 150 psi air The tanks are interconnected and receive pressurized air the tractor primary air tank that is mounted under the tractor cab Each tank is equipped with drain port to remove moisture from the brake system NDING UNIT A 24 VDC pressure sending unit is mounted on the rear bogie and is wired into the existing tractor brake pressure indicating and warning systems The sending unit provides air pressure sensing for the tractor air brake sensing in the tractor cab The sending unit also provides a signal to the brake low pressure warning system that sounds an audible warning to
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