XBP & WBP Manual.p65
Contents
1. PRESTO OWNER S MANUAL 15 amp WBP SERIES SCISSOR LIFTS FIGURE 9 HYDRAULIC ARRANGEMENT for XBP24 10 15 PRESTO OWNER S MANUAL 16 amp WBP SERIES SCISSOR LIFTS FIGURE 11 PORTABLE KIT CASTER WP for XBP24 10 FROM FLOOR WHEN RETRACTED BASE ASSEMBLY t 15 1 16 APPROI 1 PRESTOOWNER SMANUAL Pagei7 XBP amp WBPSERIES SCISSORLIFTS RESTOCKING POLICY Presto Lift Inc s goal is for you to be satisfied with your order Merchandise may be returned but returns will be subject to a restocking fee to cover the costs Presto Lift Inc incurs which include but are not limited to handling storage of the units etc Presto Lift Inc will issue refurbishing costs where end user wear is apparent We would prefer to not charge for these costs but find it necessary any apologize for any inconvenience Please review the RETURN MATERIALS AUTHORIZATION RMA PROCEDURES LIFTS Lifts may be returned with a restocking fee according to the following schedule 1 Standard unit or standard unit with stock options Three or less 20 With re order 15 Four or more of the same model 30 With re order 20 2 Custom engineered modified lifts No Returns PARTS Standard parts may be returned with a 20 restocking fee Modified or custom engineered parts are not returnable Unfortunately due to potentially concealed damage all sales of electrical assemblies are final QUALITY ISSUES2. Seal kits are listed on page 11 1 a For standard lifts lower lift to is lowest posi tion Then lift the top to its over center position and secure b For lifts with oversize or beveled platform secure the lift as follows Raise the liftto its full raised position Place a steel 7 8 or 1 bar through both outer scissor leg holes Lower the lift until the inner legs are firmly in contact with the bar 2 Forlifts with oversized platforms the lift must be serviced in an up positions The following procedure must be followed prior to servic ing a Raise the lift to the full up position b Place the appropriate chock in position as shown in Figure 1 Lower the lift until the the wheels come in contact with the chock d Disconnect negative battery terminal e Perform 1 through 7 from the routine check list on page 7 Disconnect electrical power 4 Ifequipped Raise the leg assembly 2 and sup port with the yellow supplied safety chock 5 Remove retainer clips shield and rollers 6 Clean and lubricate axle Replace with new rollers shields and clips pa XBP amp WBP SERIES SCISSOR LIFTS 7 For lifts serviced in a lowered position lower the tabletop completely b For lifts serviced in the up position raise table slightly and remove steel bars 7 TROUBLESHOOTING IF LIFT DOES NOT RISE TO FULL HEIGHT check for leaks or shortage of oil Maintain the proper oil le
3. Should you feel there is a quality problem please contact the seller to ask questions and gather information on how to rectify the issue Presto Lift Inc reserves the right to determine potential credits as a result of factory defects based on its in spection of the merchandise GENERAL All products shipped from our factory have passed Quality Assurance inspection and testing The carrier of choice has signed for and accepted the product in new working condition The customer should inspect to ensure it is not received dam aged has no concealed damage or is not incomplete Parts orders are determined to be complete based upon Presto Lift Inc inspection sheets and carrier shipping weights PRESTO OWNER S MANUAL Page18 amp WBP SERIES SCISSOR LIFTS RETURN MATERIALS AUTHORIZATION RMA PROCEDURES Although Presto Lift Inc is not legally obligated to issue a credit for any merchandise the RETURN MATERIALS AUTHORIZATION RMA PROCEDURE is provided as a cour tesy to our customers in the event they do not receive what they wanted If a customer wishes to return a Presto Lift Inc product the first step in the process is to request an RMA number from Presto Lift Inc s Customer Service Department This request must be made on or before the thirtieth 30th calendar day following the date of Presto Lift Inc s invoice for the merchandise being returned The RMA number must appear on the outside of any packaging m
4. worldwide material handling and ergonomic solutions XBP amp WBP Series Scissor Lifts Installation Operation and Service Manual Model Number Serial _ Date placed in service IMPORTANT READ CAREFULLY BEFORE INSTALLING OR OPERATING LIFT Part orders are subject to a 50 miminum charge February 2008 The Presto Five Year Warranty Presto Lifts Inc warrants all of its products against defects in the welded structural frame and if applicable scissor legs from faulty material and workmanship for a period of five years from the date of invoice To read more about the warranty on this equipment please turn to the back inside cover of this owner s manual This manual was current at the time of printing To obtain the latest most updated version please contact the Customer Service Department or go to our website www PrestoLifts com you will find a complete list of current owner s manuals to print CONTENTS SECTION 1 TREO EE ILES 4 SECTION 2 SECTION 3 4 5 A Uncrating and Inspection B Installing C Electricals D Hydraulics E Testing the Lift with No Load SECTION 4 PCT E 6 A Method of Operation B Operating Instructions SECTION 5 nance 6 7 A Routine Maintenance B Troubleshooting Maintenance SECTION 6 7 8 A Replacing Cylinder Seals B Replacing Le
5. 2 Before using the lift check the hydraulic oil level and add oil if necessary Check fittings for tightness Remove the solid plug on the reservoir and replace it with the vented plug provided Ifthe plug is not installed you may damage the pump PRESTO OWNER S MANUAL Page 5 CAUTION amp WBP DC Electric Scissor Lifts are de signed for normal factory environments Where below freezing conditions may exist special fluid must be used Contact Presto Lifts for further in formation when freezing conditions exist WARNING Do not use automotive hydraulic brake or trans mission fluids They may damage seals and could pose a serious fire hazard E TESTING THE LIFT WITH NO LOAD 1 Before testing the lift clear the area of any loose material Be sure the lift has no obstruction above it or on any side 2 Using the controls provided briefly operate the lift 5 10 seconds If the lift begins to rise with a humming sound and functions properly continue to the full upright position CAUTION If the lift does not rise immediately or there is any operational problem stop it immediately Before continuing check the rotation of the pump and mo tor and the voltage at motor terminals again briefly operate the lift If the lift does not move smoothly with a humming sound stop and review the proce dures in the section on troubleshooting 5B 3 After raising the lift completely lower the lift It should move
6. available for the purpose Replacement parts should be identical to the original equipment Presto Lifts will not be responsible for equipment failures resulting from the use of incorrect replacement parts or from unauthorized modifications to the unit Presto Lifts can supply all replacement parts for your lift With your order please include the model number and the serial number of the unit You can find these numbers on the name plate This plate is located within the scissors mechanism To order replacement parts please call the Presto Parts Department Parts are shipped subject to the following terms FOB factory Returns only with the approval of our parts department Credit cards preferred except parts covered by warranty Freight collect for truck except parts covered by warranty Freight prepaid and invoice for small parcel shipments except parts covered by warranty Parts replaced under warranty are on a charge credit basis We will invoice you when we ship the replacement part then credit you when you return the worn or damaged part Presto Parts Department 21 Park Street Attleboro MA 02703 Telephone 800 343 9322 FAX 888 788 6496 Email service PrestoLifts com www PrestoLifts com PRESTOOWNER SMANUAL Page20 XBP amp WBP SERIES SCISSOR LIFTS Presto Lifts Limited Warranty Policy Presto Lifts warrants all of its products against defects in the welded structural frame and if applicable
7. from the electric outlet Never allow clips to touch each other 1 To charge the unit plug the charger into the 110 volt wall outlet The charger is pre wired to the battery 2 Disconnect the charger from the 110 volt wall outlet once the indicators read fully charged SECTION 6 MAINTENANCE Generally the XBP amp WBP DC Electric Scissor Lifts require very little maintenance Reasonable care will result in excellent trouble free performance WARNING Never go under or service lift with a load on the table or with the scissor mechanism unblocked Always service the lift in a down position A ROUTINE MAINTENANCE All routine maintenance should be performed monthly and can be performed on the standard XBP amp WBP PRESTO OWNER S MANUAL Page 7 DC Electric Scissor Lifts in a lowered height position Before performing any maintenance disconnect the battery Then raise the top over its center position se cure in place and perform the routine listed 1 through 7 WARNING Wood blocks should be cut to the proper length and be of a hard wood variety Check for defects or damage to the blocks prior to each usage These blocks are to be used only if the mainte nance chock has been damaged or misplaced 1 Check oil level Add oil if necessary 2 Check rollers for signs of wear Replace if dam aged 3 Check snap ring and shield Replace if damaged 4 Check hydraulic lines for damage or leaking Re place i
8. position If performed properly this will greatly reduce the possibility of injury Lifts with oversize table tops require special handling See Section 5 Mainte nance WARNING 1 Do not perform any repair work on lifts if there is a load on the platform or with the table in a raised position All personnel must stand clear of the lift when the lift is in motion 1 Do not put hands or feet under the lift table 1 Do not work under the table without securing the lift with supplied safety chocks f Do not stand sit or climb on the lift Do not use the lift on soft uneven or unstable surfaces 1 Do not exceed the load capacity 1 Do not place a load on a moving lift 1 Place loads in the center of the table and secure loads properly SECTION 3 INSTALLATION A UNCRATING AND INSPECTION Upon receipt of the XBP amp WBP DC Electric Scissor Lifts inspect the equipment completely to determine if there is any shipping damage and that the lift is com plete Presto Lifts Inc tests and inspects every piece of equipment prior to shipment If damage is apparent a freight claim must be filed with the freight company Do Not use the lift if there appears to be any damage With the lift in a collapsed position check the following CAUTION Lifts with oversize table tops must not be over ex tended since doing so may disassociate the cylinder base from its socket See Section 5 Maintenance 1 Check for signs of damag
9. scissor legs from faulty material and workmanship for a period of five 5 years from the date of invoice A lifetime limited warranty is provided for the Airstroke ActuatorTM in all pneumatic lifts against any defect due to faulty material or workmanship All batteries are covered under a separate limited warranty from the battery manufacturer for a period of one year from the date of invoice All other components have a limited warranty against defects in faulty material and workmanship for a two 2 year period from the date of invoice date of invoice and 30 day limited warranty on labor Please note that prior authorization from Presto Lifts is required on all warranty work There are no implied warranties of any kind more specifically there are no warranties of mer chantability or fitness for any particular purpose Presto Lifts sole warranty shall be as set forth in this limited warranty Presto Lifts will elect to repair or replace a defective component without charge if any compo nents should become defective within the limited warranty period Proof of purchase is required for warranty The charge for shipping the defective component is the responsibility of the buyer and must be accompanied with an RMA number The shipping charge to return the component to the buyer is the responsibility of Presto Lifts Inc This limited warranty does not cover labor expense for removal or reinstallation of components after thirty days This lim
10. IRE MANY OPTIONS LiftTahie lt 7 7 Double Lift JOM Table N AY Post Tables g 1 Portable A ok LET PRESTO MEET F3 4 ES THOSE NEEDS 2 P Call Presto Sales for stock or customized lift inquiries at 800 343 9322 Email sales prestolifts com Pallet Jack
11. SWIVEL CASTER ASSEMBLY 1 RIGID PHENOLIC WHEEL FLOOR LOCK PRESTO OWNER S MANUAL 1001 171 01 1001 171 02 1001 171 05 1001 171 06 1001 091 01 1001 091 03 1001 048 1001 049 1000 067VR 80000158 1000 200 06A 80000156 80000123 1000 086 C141C 1001 028VR 2800920 80000294 101 5 C102PH 77248 7 Page 11 USED ON MODEL XBP24 15 WBP24 15 XBP36 15 WBP36 15 XBP24 10 WBP24 10 XBP36 10 WBP36 10 XBP24 10 XBP24 15 WBP24 10 WBP24 15 XBP36 10 XBP36 15 WBP36 10 WBP36 15 All Units All 24 Travel Series All 36 Travel Series All 24 Travel Series All 36 Travel Series All Units All Units All Units All Units All Units with Hand Pendants All Units All Units All Units XBP amp WBP SERIES SCISSOR LIFTS Cylinder P N 1001 171 01 amp 1001 171 02 Cylinder P N 1001 171 05 amp 1001 171 06 FIGURE 5 ELECTRICAL SCHEMATIC 12 VOLT DC POWER XBP and WBP FUSED DISCONNECT BY OTHERS a 7 MITIK 9 1 mw lt 6 60 HZ ar Uti RECEPTACLE WC BATTERY 00 NOT CONNECT M INDICATES WIRE CONNECTION IN THE HOUSING INTERNAL HAND CONTROL WIRING CONNECTION M eae ee CONTROL FOOT CONTROL USE SAWE COLOR COOE PRESTO OWNER S MANUAL 12 XBP amp WBPSERIES SCISSOR LIFTS FIGURE 6 HYDRAULIC SCHEMATIC ALL MODELS BI DIRECTIONAL PUMPS These pumps are driven by reversibl
12. aterial for a return to be accepted and processed by Presto Lift Inc Customers shipping returns back to Presto Lift Inc from the Continental US Canada and Mexico have fourteen 14 days from the effective date of the RMA to have the merchandise arrive freight prepaid at Presto Lift Inc Returns from locations other than the Continental US Canada and Mexico must be shipped within the fourteen 14 day period to arrive Free On Board FOB at Presto Lift Inc as soon as practical If a customer believes Presto Lift Inc s merchandise is defective freight will be reimbursed to the original Bill To on the invoice if Presto Lift Inc finds that the merchandise is defec tive Please remember that merchandise with RMA s coming back to Presto Lift Inc from the Con tinental US Canada and Mexico will not be accepted by Presto Lift Inc if the returned goods do not arrive freight prepaid at Presto Lift Inc within the fourteen 14 day effective period All credits issued are less restocking fees as applicable plus any assessed outbound inbound in transit damages Return addresses please refer to your RMA for the address to which your product should be returned Presto Lift Inc 715 Highway 77 Manila Arkansas 72442 Telephone 800 343 9322 Fax 888 788 6496 PRESTO OWNER S MANUAL Page19 XBP amp WBPSERIES SCISSOR LIFTS Ordering Replacement Parts Presto Lifts has carefully chosen the components in your unit to be the best
13. e especially to the electrical and hydraulic components Check all connections for tightness 1 Check for any bent or damanged metal parts 1 Check base frame for flatness XBP amp WBP SERIES SCISSOR LIFTS CAUTION When moving the lift do not attempt to pick it up by the table top The lift should be picked up by its base only B INSTALLING Before starting be sure that the battery is connected Read all of the instructions prior to starting the lift 1 Handle Assembly a Portable lifts have the push handles removed for ease of shipping Handles should be inserted in the hold ers until they bottom out then tighten set screws on each holder with an Allen wrench ELECTRICALS 1 The motors on XBP amp WBP DC Electric Scissor Lifts are special intermittent duty motors with high pull up torques These motors require heavier duty electri cal controls than standard motors WARNING Do not attempt to modify or change the electrical circuit Any alterations will cause damage to the pump and possible physical injury Only authorized personnel should service the electrical system 2 For the XBP amp WBP DC Electric Scissor Lifts a battery charger is furnished with a short AC 120 plug A circuit of 15 amps or larger will suffice to operate the battery charger D HYDRAULICS 1 Use only hydraulic oil for the lift The lift has been supplied with Citgo AW32 When adding fluid use only the recommended oils
14. e motors and are primarily used to power double acting cylinders in both directions Locking checks that hold the load in either direction are standard DOUBLE ACTING CYLINDER VELOCITY FUSE CROSS CHECK YALVING FOR A REVERSIBLE LOCKING CIRCUIT j THERMAL II LC THERMAL RELIEF WAL VE VALVE gt n e an on UP RELIEF VALVE AL SET AT 3400 PSI DN RELIEF VALVE SET AT 600 PSI Table 1 Hydraulic Oil Specifications If the lift will be used at normal ambient temperatures Presto Lifts supplies the unit with Citgo AW 32 oil This may be replaced by any other good quality oil with 150 SSU at 100 F and rust and oxidation inhibitors and anti wear properties If the lift will be used at ambient temperatures below O F use aircraft grade hydraulic oil Type 15 aircraft hydraulic oil is recommended The following are equivalent to CITGO AW32 TYPE MANUFACTURER EXXON MOBIL NUTO H32 EXXON MOBIL AMOCO AW32 CHEVRON AMOCO CO CAUTION Itis very important to keep the hydraulic oil free of dirt dust metal chips water and other contamination Most of the problems with hydraulic systems are caused by contamination in the oil PRESTO OWNER SMANUAL 13 XBP amp WBPSERIES SCISSOR LIFTS FIGURE 7 HYDRAULIC ARRANGEMENT for XBP36 10 15 PRESTO OWNER S MANUAL 14 XBP amp WBPSERIES SCISSOR LIFTS FIGURE 8 ELECTRICAL ARRANGEMENT for XBP24 36
15. ered in this manual call Presto Lifts for further instructions Additional manu als are available upon request or on our web site at www prestolifts com The scissor lift has a nameplate that provides the load capacity ratings serial number and model identifica tions Please refer to these numbers when ordering parts or requesting further information The Presto Lifts XBP amp WBP DC Electric Scissor Lifts are designed for lifting lowering and positioning a variety of loads WHERE UNIQUE SITUATIONS ARISE THAT ARE NOT COVERED IN THIS MANUAL CALL PRESTO LIFTS FOR FURTHER INSTRUCTIONS The XBP amp WBP DC Electric Scissor Lifts is designed for inplant nonhazardous location use only These units are not for personnel lifting SECTION 2 SAFETY The XBP amp WBP DC Electric Scissor Lifts are very powerful lifts capable of doing large amounts of work They contain scissor legs that are hydraulically actu ated and are capable of causing serious injury or dam age if adequate precautions are not taken DO NOT INSTALL OR OPERATE THESE LIFTS WITHOUT CAREFULLY READING THIS MANUAL In order to provide for the safe operation of these scissor lifts Presto Lifts Inc has identified cer tain hazards that may occur during the installation main tenance and use of these lifts For safety reasons the standard XBP amp WBP DC Electric Scissor Lifts are designed to be serviced or repaired in the low PRESTO OWNER S MANUAL Page4 ered
16. f damaged 5 Check for oil spots on the floor Trace leaks to the proper fitting and tighten 6 Check wiring for damage Replace immediately if any sign of wear is evident 7 Bearings on these lifts are permanently lubricated and require no servicing Look for any signs of wear B TROUBLESHOOTING MAINTENANCE LIFT WILL NOT MOVE 1 No operational noises a Check power switch b Check voltage at motor motor may have failed 2 Operational noises a Lift may be overloaded or jammed Check load weight and obstructions b Oil shortage reservoir low or oil line failure Repair or replace 3 Motor overheats a Excessive cycle rate 15 per hour max b Low voltage check voltage at motor c Oil starvation check filter in reservoir LIFT OPERATING SLOWLY 1 Up cycle a Oil starvation check filter in reservoir b Oil viscosity oil is too heavy or too thin XBP amp WBP SERIES SCISSOR LIFTS Air in cylinder cycle lift with no load 2 times and hold down button for 20 seconds after bottoming out on each cycle 2 Down cycle single acting cylinders a Pinched hydraulic lines b Oil viscosity is too heavy 3 Lift raises then slowly lowers without power a Leaking hydraulic lines or fittings check for telltale oil spots b Check valve in pump may not be seating Requires new pump 4 Lift will not lower when energized a Down solenoid faulty Check voltage
17. g Rollers SECTION 7 M LIST OF FIGURES XBP WBP Product Illustration Figure 0 10 Recommended Spare Parts List e tete 565 11 Electrical Schematic for 12 Volt DC XBP and WBP Figure 5 eee 12 Hydraulic Pump 13 Hydraulic Schematic for XBP 36 10 15 Figure 7 sese enn 14 Electrical ARR for XBP 24 36 PIgure 8 15 Hydraulic ARR XBP 24 10 15 Figure 9 16 ACP PORTABLE KIT CASTER WP FOR XBP 24 Figure 17 RESTOCRING cs OF ik 18 RETURN MATERIALS AUTHORIZATION RMA PROCEDURES 19 ORDERING REPLACEMENT tui ARRA M encase 20 WARRANTY Oc M 22 PRESTO OWNER S MANUAL Page3 XBP amp WBPSERIES SCISSOR LIFTS SECTION 1 INTRODUCTION This manual attempts to provide all of the information necessary for the safe and proper installation opera tion and maintenance of Presto Lifts Inc s XBP amp WBP DC Electric Scissor Lifts It is important that all per sonnel involved with the installation maintenance or operator of the scissor lift read this manual Where unique situations arise that are not cov
18. g any of these components wear a face shield or other suitable protective eyewear 3 For a sealed battery a battery without cell caps carefully follow the manufacturer s recharging in structions that are provided with the battery If you do not have a copy of these instructions or the in structions for the battery charger they are avail able free of charge by calling Presto 1 800 343 9322 4 Read understand and follow all battery and batterycharger manufacturer s specific precautions while working with and or charging batteries B LOCATING THE CHARGER 1 Locate charger as far away from battery as the cables permit 2 Do not operate charger in a closed area or restrict ventilation in any way XBP amp WBP SERIES SCISSOR LIFTS C PRECAUTIONS FOR GROUNDING AND AC POWER CORD CONNECTION Charger should be grounded to reduce risk of electric shock Charger is equipped with an elec tric cord having an equipment grounding conduc tor and grounding plug The plug must be plugged into an outlet that is properly installed and grounded in accordance with all local codes and ordinances DANGER Never alter the AC cord or plug provided If it will not fit outlet have proper outlet installed by a qualified electrician Improper connection can re sult in a risk of an electric shock D BATTERY CHARGER CONNECTION PRECAUTIONS CAUTION Connect and disconnect the DC output plug or clips only when the AC cord is disconnected
19. ited warranty shall not cover among other things damages resulting from foreign matter or water failure to provide reasonable and necessary maintenance and if applicable use of product while charger is plugged into an AC outlet or failure to follow operat ing instructions The limited warranty is not valid for damage resulting from negligence acci dent unreasonable use abuse or misuse exceeding data plate capacities or altering the product without Presto Lifts authorization Presto Lifts expressly disclaims and excludes any liability for consequential incidental indirect or punitive damages or financial loss to people or property resulting from any breach of warranty or the operation or failure of this product Presto Lifts makes no representation that this product complies with local state or federal safety product standards codes Should this product fail to comply in any way with those codes it shall not be considered a defect of materials or workmanship Presto Lifts shall not be held liable for any damages resulting from noncompliance It is the dealer s responsibility to exercise this lim ited warranty This limited warranty is provided to the original purchaser defined as the original end user and is nontransferable This constitutes the complete and final agreement involving Presto Lifts and limited warranty obligations for products PRESTO OWNER S MANUAL 21 XBP amp WBP SERIES SCISSOR LIFTS NEEDS REQU
20. may be low or wrong voltage for coil Check con tinuity of coil burned out b Pinched hydraulic lines c Oil viscosity is too heavy SECTION 6 SERVICE A REPLACING CYLINDER SEALS Seal kits are listed on page 11 1 Lower the lift to its lowest position Then lift the top to its over center position and secure Disconnect the negative battery terminal Disconnect the hydraulic hose from the cylinder and cap the line to prevent hydraulic fluid loss Loosen the set screws holding the cylinder pin Remove the cylinder pin Lift the cylinder out of the lift CAUTION Hold the cylinder securely while removing the pin to prevent it from falling to the floor 7 Clamp cylinder securely at the base end 8 Completely collapse cylinder piston 9 Push gland into the cylinder 1 8 3 16 10 Remove retaining ring PRESTO OWNER S MANUAL Page8 11 Remove piston rod piston and gland from cylinder 12 Remove rod nut piston and gland 13 Remove and replace seals and wipers 14 Assemble piston and gland to piston rod 15 Assemble rod nut to piston rod and torque to 100 ft Ib 16 Lubricate piston and seals and install cylinder 17 Insert retainer ring 18 Install cylinder and hydraulic lines 19 Fill reservoir 20 a Forthe lifts serviced in lowered position lower tabletop completely 2 Cycle lift 2 3 times adding oil if necessary 22 Recheck reservoir oil level B REPLACING LEG ROLLERS
21. nstructions before operat ing If the lift has modifications or accessories read and understand their functions 1 Load the lift correctly Portable lifts Place the load on the center of the table top The load center of gravity must be within 6 of the lift table top center and equally distributed over 80 of the table If the load is unstable or may become unstable fasten it into position 2 Operate the lift a To raise the lift press and hold the up button b To lower the lift press and hold the down button c Release the button to stop the lift 3 Wait until the lift has come to a complete stop be fore unloading the lift 4 Stand clear of lift when operating it in order to avoid injury PRESTOOWNER S MANUAL Page6 WARNING a Do not stand sit or climb onto the lift b Do not load or unload a moving lift If the lift fails to move or exhibits strange move ments or sound stop immediately Do not oper ate the lift until it has been checked and repaired d Obey all warning labels e Do not exceed maximum rated load f Maintain load center of gravity within 6 of the center of the portable lift SECTION 5 BATTERY MAINTENANCE A PREPARING TO CHARGE A BATTERY 1 Be sure the area around the stacker and the bat tery is well ventilated while battery is being charged 2 Thebattery terminals connections and wiring con nections should be clean and free of corrosion When cleanin
22. oil viscosity and replace if necessary Purge system by cycling several times to full extension and retraction Check for pinched lines Oil viscosity too heavy replace Oil contaminated replace Remove and clean Check fittings and lines for telltale oil spots XBP amp WBP SERIES SCISSOR LIFTS XBP and WBP SERIES PRODUCT ILLUSTRATIONS COMPONENT IDENTIFICATION ITEM NO QTY PART NUMBER DESCRIPTION See Standard Parts Chart Hydraulic Cylinder 1000 086 Safety Velocity Fuse 1 1 See Standard Parts Chart Powerpack 12 Volt system 2 C102PH Phenolic Rigid Wheel 5 See Standard Parts Chart Hydraulic Hoses Up and Down 2800920 Battery Charger Internally Mounted C141C Gell Cell Battery 1001 028VR Circuit Breaker Assembly 77248 7 Floor Lock C101PH5 Phenolic Swivel Caster Assembly 5 80000294 Hand Pendant B262RC Starter Solenoid 7 m e LA IAE t WI 01000 FIGURE 4 XBP and WBP SCISSOR LIFTS PRESTO OWNER S MANUAL Page10 amp WBP SERIES SCISSOR LIFTS RECOMMENDED SPARE PARTS LISTING XBP AND WBP 12 VOLT DC POWER ONLY DESCRIPTION CYLINDER HYDRAULIC POWER UNIT HYDRAULIC POWER UNIT CYLINDER SEAL KIT ROLLER KIT 1 roller washer and clip HYDRAULIC HOSES down HYDRAULIC HOSES up SAFETY VELOCITY FUSE GELL CELL BATTERY CIRCUIT BREAKER KIT INTERNAL BATTERY CHARGER HAND PENDANT
23. slowly and smoothly with a humming sound If the lift operates properly raise and lower the lift and stop at different levels to get a good perspective on the lift s operations and movements SECTION 4 OPERATION A METHOD OF OPERATION Electric All XBP amp WBP DC Electric Scissor Lifts are pro vided with a special relief valve and are factory preset for the maximum safe capacity of the lift Activating XBP amp WBP SERIES SCISSOR LIFTS and holding the up switch will energize the motor The motor is attached to a positive displacement pump that draws hydraulic fluid from the reservoir and trans fers it under pressure to the cylinder This forces the piston forward and the scissor legs to separate and raise the platform releasing the up button will stop the lift A check valve between the pump and piston holds the table in position Depressing and holding the down switch will energize a solenoid that allows the oil from the cylinder to return to the reservoir through a preset flow control This allows the lift to lower smoothly and at a controlled speed CAUTION Do not attempt to change the setting on the pres sure relief valve Do not maintain the up or down button energized if the lift fails to move or after it has reached its up or down limits This will cause damage to the pump and controls B OPERATING INSTRUCTIONS In order to operate the lift follow these operating pro cedures Read and understand all the i
24. vel To check oil level follow these instructions 1 On left hand side on top of oil well you will find a hexagon cap screw which is also a dipstick 1 Remove the cap screw and fill oil well with hydrau lic oil Oil should reach notch on dipstick IF THE LIFT TENDS TO CREEP DOWNWARD UNDER A LOAD a speck of dirt may be obstruct ing the seating of the valve and allowing leakage To correct follow these instructions 1 Raise lift to full lifting height and then lower it to lowest point of lift It may be necessary to do this five or six times In lowering the lift lower it in stages that is lower the lift six inches to a foot at a time This will dislodge the dirt and lift will operate properly TROUBLESHOOTING MAINTENANCE ELECTRIC PROBLEM PROBABLE CAUSE Lift will not move Loss of power no motor noise Motor failure Lift will not move Overloaded lift with motor noise Motor Motor overheats Excessive cycling rate Up cycle slow Oil starvation Oil viscosity Air in cylinder system Down cycle slow Blockage in hydraulic line Lift raises Check valve then lowers slowly Not seating Leaking fitting PRESTO OWNER SMANUAL Page9 SERVICE REQUIRED Check power switch or battery and charger Check voltage at motor Check load Low voltage at motor Battery low Oil starvation Check oil reservoir Check cycle rate 15 cycles per hour maximum Low voltage Check voltage at motor Check and fill reservoir Check
Download Pdf Manuals
Related Search