XS, DXS & WXS Series Scissor Lifts - Cisco
Contents
1. Do not work under the table without securing the lift with supplied safety chocks Do not stand sit or climb on the lift Do not use the lift on soft uneven or unstable sur faces Do not exceed the load capacity Do not place a load on a moving lift Place loads in the center of the table and secure loads properly SECTION3 INSTALLATION A UNCRATING AND INSPECTION Upon receipt of the XS DXS amp WXS Series 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 damage especially to the electrical and hydraulic components 2 Check all connections for tightness Check for any bent or damaged metal parts 4 Check base frame for flatness W CAUTION When moving the lift do not attempt to pick it up XS DXS amp WXS SERIES SCISSOR LIFTS by the table top The lift should be picked up by its base only B INSTALLING Before starting be sure that the electrical syst2. Presto worldwide material handling and ergonomic solutions XS DXS amp 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 January 2012 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 our website www PrestoLifts com you will find a complete list of current owner s manuals to print PRESTO OWNER S MANUAL Page 2 XS DXS WXS SERIES SCISSOR LIFTS CONTENTS SECTION 1 A R ZA i oe att hale ce iat ayau ak i 4 SECTION 2 SAA 4 SECTION 3 star ls 4 A Uncrating and Inspection viii ii ic 4 B stalling O 5 A na doi ae si eana aa ESE A AER ARS 5 D FAV GHA CS n O 5 E Testing the Lift with No DA ld O 5 SECTION 4 Operation as 6 Ay Method of Operation 6 B Operating Instructions sad ci 6 SECTION 5 MA o dee ad cued o a ua 6 A Routine Maintenance rd it aia 6 B Troubleshooting Maintenance ade 7 SECTION 6 DXS Tia ORDERING REPLACEMENT PARTS ua ea ooo ea 11211 53111111111 81 r t 14 RESTOCKING POLICY an n 2x10 aaa dA ACO 15 WARRANTY a E a R A W RA Z 16 Fig 1 Electrical Diagram 115V S11 1v 219 1T HH TT TH
3. Presto Lift Inc reserves the right to determine potential credits as a result of factory defects based on its inspection 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 damaged 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 Page 15 XS DXS WXS SERIES SCISSOR LIFTS Presto Lifts Limited Warranty Policy Presto Lifts warrants all of its products against defects in the welded structural frame and if ap plicable scissor legs from faulty material and workmanship for a period of five 5 years from the date of invoice Allother 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 com
4. Tu TH HH ng 9 Fig 2 XS amp WXS Components Diagram 1 511 118111 111111181 1 ng ng 10 Fig 3 DXS Components D1ag TaTm 5c 2c 21 1 91 3399119319311 aaa 11 Fi ADXS Power Units us susu EA ABA Nit 12 Fig 5 Hydraulic Schematic All models s a 13 LIST OF TABLES Table 1 Troubleshooting Maintenance Electrical 531511111 aaa aaa 8 Table 2 Hydraulic oil Specifications n HH Hi n 13 PRESTO OWNER S MANUAL Page 3 XS DXS amp WXS SERIES SCISSOR LIFTS 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 DXS amp WXS Series Scissor Lifts It is important that all personnel involved with the installation maintenance or opera tor of the scissor lift read this manual Where unique situations arise that are not covered in this manual call Presto Lifts for further instructions Additional manuals 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 XS DXS amp WXS Series Scissor Lifts are desig
5. COOE X INDICATES WIRE CONNECTION IN THE ENCLOSURE XS DXS amp WXS SERIES SCISSOR LIFTS Page 9 ELECTRICAL DIAGRAM 115 AC FIGURE 1 PRESTO OWNER S MANUAL FIGURE 2 XS amp 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 CYLINDER 1001 171 03 XS24 10 XS24 15 WXS24 10 WXS24 15 mm 1001 171 04 XS36 10 XS36 15 WXS36 10 WXS36 15 AC MOTOR PUMP 1001 092 01 XS24 15 WXS24 15 AND RESERVOIR 1001 092 02 XS24 10 WXS24 15 1001 092 11 XS36 15 WXS36 15 1001 092 12 XS36 10 WXS36 110 ROLLER KIT 1000 067VR ALL MODELS HYDRAULIC HOSES DOWN 80000725VR XS24 10 XS24 15 WXS24 10 WXS24 15 80000122 XS36 10 XS36 15 WXS36 10 WXS36 15 HYDRAULIC HOSES UP 80000156 XS24 10 XS24 15 WXS24 10 WXS24 15 1001 113 31 5VR XS36 10 XS36 15 WXS36 10 WXS36 15 E506 E26 PRESTO OWNER S MANUAL Page 10 XS DXS amp WXS SERIES SCISSOR LIFTS SECTION 6 DXS Lifts MODEL LOW HGT RAISED HGT STANDARD END SIDE MAX OVERSIZE END SIDE PLATFORM CAPACITY PLATFORM CAPACITY DXS24 10 24 X 36 1000 LBS 36 X 48 760 LBS DXS24 15 24 X 36 1500 LBS 36 X 48 1140 LBS DXS36 10 5 1 4 24 X 48 1000 LBS 36 X 60 760 LBS DXS36 15 5 1 4 24 X 48 1500 LBS 36 X 60 1140 LBS See note Capacity is based on the load center of gravity being within 12 of the lift center and equally distributed ove
6. able 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 Stationary lifts Place the load on the center of the table top The load center of gravity must be within 8 of the lift table top and equally distributed over 80 of the table If the load is unstable or may become unstable fasten it into position PRESTO OWNER S MANUAL Page 6 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 before unloading the lift 4 Stand clear of lift when operating it in order to avoid injury WARNING a Do not stand sit or climb onto the lift b Do not load or unload a moving lift c If the lift fails to move or exhibits strange move ments or sound stop immediately Do not operate 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 and 8 for stationary lifts SECTION 5 MAINTENANCE Generally the XS DXS amp WXS Series 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 t
7. em is wired and is in full compliance with local electrical codes and ordinances 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 holders until they bottom out then tighten set screws on each holder with an Allen wrench 2 Floor Installation a Electrical connections must be made according to the electrical schematics and information contained in Section 3C and in compliance to local codes and ordinances C ELECTRICALS 1 The motors on XS DXS amp WXS Series Scissor Lifts are special intermittent duty motors with high pull up torques These motors require heavier duty electrical controls than standard motors 2 Wiring circuits must conform to local codes and must be installed by a licensed electrician 3 Lifts are pre wired at the factory for motor direction and performance CAUTION All wiring must conform to local codes and must be performed by licensed electricians 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 4 For the XS DXS or WXS Series Scissor Lifts a dedicated circuit of 20 amps or larger will suffice to operate the lift PRESTO OWNER S MANUAL Page 5 D HYDRAULICS 1 Use only hydraulic oil for the lift T
8. he lift has been supplied with Conoco Super Hydraulic 32 When add ing fluid use only the recommended oils See Table 1 2 Before using the lift check the hydraulic oil level and add oil if necessary Check fittings for tightness If the plug is not installed you may damage the pump CAUTION XS DXS amp WXS Series Scissor Lifts are designed for normal factory environments Where below freezing conditions may exist special fluid must be used Contact Presto Lifts for further information when freezing conditions exist 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 hum ming 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 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 pe
9. he 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 XS DXS amp WXS Series Scissor Lifts in a lowered height position Before performing any maintenance shut the power off Then raise the top over its center position secure in place and perform the routine listed 1 through 7 1 Check oil level Add oil if necessary 2 Check rollers for signs of wear Replace if dam XS DXS amp WXS SERIES SCISSOR LIFTS aged 3 Check snap ring and shield Replace if damaged 4 Check hydraulic lines for damage or leaking Replace if 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 1s 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 fuses and overloads 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 Motor 3 phase single phasing Check voltage at motor terminals c Motor 3 phase reversed Reverse 2 lines d Motor 1 phase low voltage Check voltage at motor terminal e Oi
10. l 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 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 c 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 Down valve dirty remove and clean Check oil condition replace if dirty PRESTO OWNER S MANUAL Page 7 b Pinched hydraulic lines c Oil viscosity is too heavy 3 Lift raises then slowly lowers without power a Down valve dirty Remove and clean b Leaking hydraulic lines or fittings check for telltale oil spots c Check valve in pump may not be seating Requires new pump 4 Lift will not lower when energized a Down solenoid faulty Check voltage may be low or wrong voltage for coil Check continu ity of coil burned out LIFT DOES NOT RISE TO FULL HEIGHT Check for leaks or shortage of oil Maintain the proper oil level To check oil level follow these instructions IF THE LIFT TENDS TO CREEP DOWNWARD UN DER A LOAD aspeck of dirt may be obstructing the seating of the valve and allowing leakage To correct fo
11. llow these instructions 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 XS DXS amp WXS SERIES SCISSOR LIFTS Table 1 TROUBLESHOOTING MAINTENANCE ELECTRICAL PROBLEM PROBABLECAUSE SERVICE REQUIRED Lift will not move Loss of power Check power switch fuses and overloads no motor notse or battery and charger il heck vol Lift will not move Overloaded lift Check load with motor noise Motor Low voltage at motor Battery low gt i dica f Motor overheats Excessive cycling rate Check cycle rate 15 cycles per hour maximum a Low voltage Check voltage at motor Up cycle slow Oil starvation Check and fill reservoir Oil viscosity Check oil viscosity and replace if necessary Air in cylinder system Purge system by cycling several times M A Down cycle slow Blockage in hydraulic line Check for pinched lines Oil Oil viscosity too heavy replace gt i basal Lift raises Check valve Remove and clean then lowers slowly Not seating Leaking fitting Check fittings and lines for telltale oil spots PRESTO OWNER S MANUAL Page 8 XS DXS WXS SERIES SCISSOR LIFTS RELAY TERMINAL LOCATIONS FUSED DISCONNECT BY OTHERS RAND CONTROL 4 FOOT CONTROL USE SAME COLOR
12. manship Presto Lifts shall not be held liable for any damages resulting from noncompliance It is the dealer s responsibility to exercise this limited 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 Page 16 XS DXS WXS SERIES SCISSOR LIFTS MANY NEEDS REQUIRE MANY OPTIONS Presio lt I LET PRESTO MEET THOSE NEEDS Call Presto Sales for stock or customized lift inquiries 800 343 9322 Email sales prestolifts com 1
13. ned for lifting lowering and position ing a variety of loads WHERE UNIQUE SITUA TIONS ARISE THAT ARE NOT COVERED IN THIS MANUAL CALL PRESTO LIFTS FOR FURTHER INSTRUCTIONS The XS DXS amp WXS Series Scissor Lifts is de signed for inplant nonhazardous location use only These units are not for personnel lifting SECTION 2 SAFETY The XS DXS amp 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 MANU AL In order to provide for the safe operation of these scissor lifts Presto Lifts Inc has identified certain haz ards that may occur during the installation maintenance and use of these lifts For safety reasons the standard XS DXS amp WXS Series Scissor Lifts are designed to be serviced or repaired in the lowered position If performed properly this will greatly reduce the pos PRESTO OWNER S MANUAL Page 4 sibility of injury Lifts with oversize table tops require special handling See Section 5 Maintenance WARNING 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 Do not put hands or feet under the lift table
14. ponent 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 limited warranty shall not cover among other things damages resulting from foreign matter or water failure to provide reasonable and necessary maintenance and if ap plicable use of product while charger is plugged into an AC outlet or failure to follow operating instructions The limited warranty is not valid for damage resulting from negligence accident 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 work
15. r 60 of the table FIGURE 3 DXS COMPONENTS DIAGRAM FSL280 002872 OS TAINING RING Uae RING om WASHER a PIN lt 5 Rep _ Tj RETAINING RING ROLLER ASSY 3 SCREW LOCKWASHER o ER 1628 099 01 1016 089 HOSE ASSY BREATHER PLUG SEE DETAIL A 211RC A FLOW CONTROL AOR MAS E HENO LIL Ea 1928 014 01 PIN ADAPTER ADAPTER 1000 0386 1028 099 02 FUSE HQSE ASSY TG PUMP 1028 103 01 DETAIL A SAFETY CHOCK PRESTO OWNER S MANUAL Page 11 XS DXS WXS SERIES SCISSOR LIFTS FIGURE 4 DXS POWER UNIT COMPONENTS 1000 046 01 STRAINER w TANK ELBOW GE le 1028 0931 SUETIONS RETURN HOSE e 8 ES L I OD INS i i m 2 2947300 F POWER ORD REL t ARR L ORFFEN L H EM r PRESTO OWNER S MANUAL Page 12 XS DXS amp WXS SERIES SCISSOR LIFTS FIGURE 5 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 ELE THEE HTE FE WWEMINI LOCH ba 212C Table 2 Hydraulic Oil Specifications If the lift will be used at normal ambient temperatures Presto Lifts supplies the unit with Conoco Super Hydraulic 32 oil This may be replaced by any other good quality oil with 150 SSU at 100 F and rust and oxidation inhibitors and an
16. r 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 PRESTO OWNER S MANUAL Page 14 XS DXS amp WXS SERIES SCISSOR LIFTS 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 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 ISSUES Should you feel there is a quality problem please contact the seller to ask ques tions and gather information on how to rectify the issue
17. rspective on the lift s operations and movements ECTION 4 XS DXS amp WXS SERIES SCISSOR LIFTS OPERATION A METHOD OF OPERATION All XS DXS amp WXS Series Scissor Lifts are provided with a special relief valve and are factory preset for the maximum safe capacity of the lift Activating and holding the up switch will energize the motor The motor 1s attached to a positive displacement pump that draws hydraulic fluid from the reservoir and transfers 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 De pressing 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 con trol 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 instructions before operat ing If the lift has modifications or accessories read and understand their functions 1 Load the lift correctly Port
18. ti wear properties If the lift will be used at ambient temperatures below 0 F use aircraft grade hydraulic oil Type 15 aircraft hydraulic oil is recommended The following are equivalent to Conoco Super Hydraulic 32 TYPE MANUFACTURER EXXON MOBIL NUTO H32 EXXON MOBIL AMOCO AW32 CHEVRON AMOCO CO CAUTION It is 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 S MANUAL Page 13 XS DXS WXS SERIES SCISSOR LIFTS 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 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 e FOB factory Returns only with the approval of our parts department e Credit cards preferred except parts covered by warranty Freight collect fo
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