XS & WXS 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 minimum charge.
This manual was current at the time of printing. To obtain the latest, most updated version, please contact Presto Lifts Customer Service Department or go to RXU ZHEVLWH ZZZ 3UHVWR/LIWV FRP \RX ZLOO ¿QG D complete list of current owner’s manuals to print.
CONTENTS S E C T I O N 1: Introduction .............................................................................................................4 Responsibility of Owners and Users .......................................................................5 Safety Alert Symbols and Signal Words .................................................................6 S E C T I O N 2: Safety ......................................................................................................................
SECTION 1 INTRODUCTION This manual attempts to provide all of the information necessary for the safe and proper installation, operation and maintenance of Presto Lifts Inc.'s XS & WXS Series Scissor Lifts. It is important that all personnel involved with the installation, maintenance or operator of the scissor lift read this manual. Where unique situations arise, that are not covered in this manual call Presto Lifts for further instructions.
Responsibility of Owners and Users Inspection and Maintenance The device shall be inspected and maintained in proper working order in accordance with Presto’s owner’s manual. Removal from Service Any device not in safe operating condition such as, but not limited to, excessive leakage, missing rollers, pins, or fasteners, any bent or cracked structural members, cut or frayed electric, hydraulic, or pneumatic lines, damaged or malfunctioning controls or safety devices, etc.
SAFETY ALERT SYMBOLS AND SIGNAL WORDS The safety of all persons operating, maintaining, repairing, or in the vicinity of this equipment is of paramount concern. This is a powerful machine with moving parts, and is capable of causing personal injury if proper precautions DUH QRW WDNHQ 7KHUHIRUH WKURXJKRXW WKLV PDQXDO FHUWDLQ KD]DUGV KDYH EHHQ LGHQWL¿HG ZKLFK PD\ RFFXU LQ WKH XVH of the machine, and there are appropriate instructions or precautions which should be taken to avoid these hazards.
SECTION 2 use the lift if there appears to be any damage. With the lift in a collapsed position, check the following: SAFETY The XS & WXS Series Scissor Lifts are very powerful lifts capable of doing large amounts of work. They contain scissor legs, that are hydraulically actuated and are capable of causing serious injury or damage if adequate precautions are not taken. DO NOT INSTALL OR OPERATE THESE LIFTS WITHOUT CAREFULLY READING THIS MANUAL.
CAUTION! All wiring must conform to local codes and must be performed by licensed electricians. operate the lift. If the lift does not move smoothly with a humming sound, stop and review the procedures in the section on troubleshooting (5B). 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. 3. After raising the lift completely, lower the lift.
B. OPERATING INSTRUCTIONS: SECTION 5 In order to operate the lift follow these operating procedures. MAINTENANCE Read and understand all the instructions before operatLQJ ,I WKH OLIW KDV PRGL¿FDWLRQV RU DFFHVVRULHV UHDG DQG understand their functions. Generally, the XS & WXS Series Scissor Lifts require very little maintenance. Reasonable care will result in excellent trouble-free performance. 1). Load the lift correctly. Portable lifts: Place the load on the center of the table top.
d). Motor (1 phase) low voltage. Check voltage at motor terminal. e). Oil shortage -- reservoir low or oil line failure. Repair or replace. f). Down valve open, check wiring, remove and run lift. 3. Motor overheats: a). Excessive cycle rate (15 per hour max.). b). Low voltage -- check voltage at motor. F 2LO VWDUYDWLRQ FKHFN ¿OWHU LQ UHVHUYRLU LIFT DOES NOT RISE TO FULL HEIGHT Check for leaks or shortage of oil. Maintain the proper oil level.
15. Assemble rod nut to piston rod and torque to 100 ft./lb. 16. Lubricate piston and seals and install cylinder. 17. Insert retainer ring. 18. Install cylinder and hydraulic lines. 19. Fill reservoir. 20. a). For the lifts serviced in lowered position, lower tabletop completely. 21. Cycle lift 2-3 times adding oil if necessary. 22. Recheck reservoir oil level. B. REPLACING LEG ROLLERS (Seal kits are listed on page 14) 1. 2. 3. 4. 5. 6. a). For standard lifts, lower lift to is lowest position.
Table 1: TROUBLESHOOTING MAINTENANCE -- ELECTRICAL PROBLEM Lift will not move, no motor noise Lift will not move with motor noise Motor overheats Up cycle slow PROBABLE CAUSE Loss of power Motor failure Overloaded lift Motor Oil starvation Excessive cycling rate Oil starvation Oil viscosity Air in cylinder system Down cycle slow Blockage in hydraulic line Oil Lift raises then lowers slowly Check valve leaking Down valve leaking /HDNLQJ ¿WWLQJ PRESTO OWNER’S MANUAL Page 12 SERVICE REQUIRED Check p
F I G U R E 1: ELECTRICAL DIAGRAM 115 AC PRESTO OWNER’S MANUAL Page 13 XS & WXS SERIES SCISSOR LIFTS
F I G U R E 2: XS & WXS COMPONENTS DIAGRAM Standard Replacement Parts (115/1/60 Power Only). For serial numbers beginning with "V" call Presto Lifts Parts Department for parts information.
F I G U R E 3: HYDRAULIC SCHEMATIC (ALL MODELS) BI-DIRECTIONAL PUMPS These pumps are driven by reversible motors and are primarily used to power double-acting cylinders in both directions. Locking checks that hold the load in either direction are standard. Table 2 ± Hydraulic Oil Speci¿cations If the lift will be used at normal ambient temperatures, Presto Lifts supplies the unit with Conoco Super Hydraulic 32 oil.
Ordering Replacement Parts Presto Lifts has carefully chosen the components in your unit to be the best available for the purpose. Replacement parts should be identical to the original equipment. Presto Lifts will not be responsible for equipment failures UHVXOWLQJ IURP WKH XVH RI LQFRUUHFW UHSODFHPHQW SDUWV RU IURP XQDXWKRUL]HG PRGL¿FDWLRQV WR WKH XQLW Presto Lifts can supply all replacement parts for your lift.
PARTS 6WDQGDUG SDUWV PD\ EH UHWXUQHG ZLWK D UHVWRFNLQJ IHH 0RGL¿HG RU FXVWRP engineered parts are not returnable. Unfortunately, due to potentially concealed GDPDJH DOO VDOHV RI HOHFWULFDO DVVHPEOLHV DUH ¿QDO QUALITY ISSUES 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.
RETURN GOODS AUTHORIZATION POLICY 3UHVWR /LIWV SURYLGHV WKH 5HWXUQ *RRGV $XWKRUL]DWLRQ 5*$ 3ROLF\ IRU VSHFL¿F PRGHOV DV D courtesy to our distributors in the event they do not receive what they ordered. If a customer wishes to return a Presto Lifts product, please contact the Customer Service Department and UHTXHVW DQ 5*$ QXPEHU 7KLV UHTXHVW PXVW EH PDGH RQ RU EHIRUH WKH ¿IWHHQWK FDOHQGDU GD\ following the date of Presto Lifts’ invoice for the merchandise. Not all units are returnable.
Presto Lifts Limited Warranty Policy Presto Lifts warrants all of its products against defects in the welded structural frame and, if apSOLFDEOH VFLVVRU OHJV IURP IDXOW\ PDWHULDO DQG ZRUNPDQVKLS IRU D SHULRG RI ¿YH \HDUV IURP 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.
MANY NEEDS REQUIRE MANY OPTIONS... LET PRESTO MEET THOSE NEEDS! Call Presto Sales for stock or customized lift inquiries: 800-343-9322 Email: sales@prestolifts.
