INSTALLATION, OPERATION AND SERVICE MANUAL PDQ PORTABLE DOCK SCISSORS LIFT P.O. Box 1058 • 1058 West Industrial Avenue • Guthrie, OK 73044-1058 5200 • FAX: 405-282-8105 • www.autoquip.com Item # 830PDQ • 405-282- Version 1.
TABLE OF CONTENTS Identification and Inspection 3 Dangers, Warnings, and Cautions 4 Label Identification 8 Specifications 11 Lift Blocking Instructions 13 Installation Instructions 15 Operating Instructions 16 Routine Maintenance 19 General Maintenance 21 Replacement Parts List 31 Troubleshooting Analysis 33 IMPORTANT Please read and understand this manual prior to installation or operation of this lift. Failure to do so could lead to property damage and/or serious personal injury.
IDENTIFICATION & INSPECTION IDENTIFICATION When ordering parts or requesting information or service on this lift, PLEASE REFER TO THE MODEL AND SERIAL NUMBER. This information is on a nameplate attached to the leg assembly. Replacement parts are available from a local Autoquip distributor. INSPECTION Immediately upon receipt of the lift, a visual inspection should be made to determine that it has not been damaged in transit. Any damage found must be noted on the delivery receipt.
DANGERS, WARNINGS & CAUTIONS SAFETY ALERTS (Required Reading!) The following SAFETY ALERTS are intended to create awareness of owners, operators, and maintenance personnel of the potential safety hazards and the steps that must be taken to avoid accidents. These same alerts are inserted throughout this manual to identify specific hazards that may endanger uninformed personnel. Identification of every conceivable hazardous situation is impossible.
DANGERS, WARNINGS & CAUTIONS Read and understand this manual and all labels prior to operating or servicing the lift. All labels are provided in accordance with ANSI Z535.4. DANGER! Do not work under lift without maintenance device! To avoid personal injury, NEVER go under the lift platform until the load is removed and the scissors mechanism is securely blocked in the open position. See "Lift Blocking Instructions" section.
DANGERS, WARNINGS & CAUTIONS DANGER! Extending the platform length or width beyond the factory limit could cause the unit to tip, which could result in personal injury or death. DANGER! Do not attempt to remove the velocity fuse until the maintenance locks securely support the lift and all hydraulic pressure has been removed from the lifting cylinders and hydraulic hoses.
DANGERS, WARNINGS & CAUTIONS CAUTION! Never run the pump for more than a couple of seconds without pumping oil. This applies to low oil conditions, improper motor rotation, running the pump against the relief pressure after the lift is fully raised against the physical stops, running overloaded beyond capacity, or running at reduced speed because of pinched or obstructed hydraulic lines.
LABEL IDENTIFICATION Figure 1 Label Placement PDQ Scissors Lift Item No. Qty Description 1 2 Caution: Familiarize Yourself With Operators Manual 2 3 Danger – Do Not Put Hands Or Feet . . . 3 1 Autoquip Serial Number Nameplate 36401511 4 1 Fill with Recommended Oils Only 36400661 5 1 Capacity 36401594 6 1 Black & Yellow Striped Tape 06100010 8 Part No.
LABEL IDENTIFICATION Note: Labels shown here are not actual size.
LABEL IDENTIFICATION Figure 5 Label 36400661 Figure 6 Label 36401594 Figure 7 Label 06100010 10
SPECIFICATIONS *Model Low. Ht. (In.) Lift Cap (lbs) Axle Load Capacity Over Bridge End (lbs) Axle Load Capacity Opposite Bridge End (lbs) Platform Size (In) Base Frame Size (In) Max Travel (In.) Ship Wt.
SPECIFICATIONS UNBALANCED LOADING The stabilization provided is basically for balanced loads. If special attachments extend beyond the length and/or width dimensions of the platform, the end and/or side load capacity must be reduced (contact an Autoquip Sales representative). PUMP PRESSURE This lift incorporates a positive displacement pump machined to a high degree of accuracy and specially adapted to requirements of higher-pressure ranges over that of a standard pump.
LIFT BLOCKING INSTRUCTIONS 1. Remove all load from the platform. Never block the lift when loaded. 2. Raise the platform sufficiently for the base rollers to rollback past the flip-over maintenance locks, located on the base frame of the lift. 3. Engage both maintenance locks by flipping them into the base frame (see Figure 8). 4. Lower the platform until the base rollers come into contact with and rest against the maintenance locks.
LIFT BLOCKING INSTRUCTIONS FLIP-OVER MAINTENANCE LOCKS SHOWN IN PLACE ON BOTHSIDES OF BASE FRAME.
INSTALLATION INSTRUCTIONS The PDQ is easy to install and operation. It is completely self-contained and ready to go as soon as the unit is received. The control is centrally located on the platform to allow operation from either end. All electrical components and wiring are in accordance with the National Electrical Code. Loads can be quickly rolled over the hinged throwover bridge onto the platform.
OPERATING INSTRUCTIONS Familiarize yourself with this operator’s manual before operating the equipment!!! 1. Scissors lifts have maximum lifting capacity ratings (see “Specifications” section). The safety relief valve has been factory set to open at a pressure slightly above the rated load capacity and allows the oil to bypass into the reservoir to prevent damage to the lift and its hydraulic power unit.
OPERATING INSTRUCTIONS PORTABILITY The portability set is provided on the PDQ as a means of moving the lift from one location to another without a load on the lift. The portability wheels are located on each side of the lift where the lifting cylinder is mounted to the lift platform (See Figure 9). Each lift is supplied with a Dolly-T-Handle that is also necessary for making the unit portable. 1. Raise the lift approximately half way. 2.
OPERATING INSTRUCTIONS Figure 9 Portability Wheel Details 18
ROUTINE MAINTENANCE Normally scissors lifts will require very little maintenance. However, a routine maintenance program could prevent costly replacement of parts and/or downtime. WARNING! To avoid personal injury, NEVER go under the lift platform or perform any maintenance on the lift until the load is removed and the scissors mechanism is securely blocked in the open position. See "Lift Blocking Instructions" section. MONTHLY INSPECTION 1.
ROUTINE MAINTENANCE Oil Viscosity Recommendations Environment (Ambient Temperatures) Recommended Oil Indoor location, variable temperatures (30 - 100° F) 10W30 or 10W40 Multiviscosity motor oil Indoor location, consistent Temperatures (70° F) SAE-20W motor oil Outdoor location, (-10 - 100° F) SAE 5W30 Multiviscosity motor oil Cold-storage warehouse (10 - 40° F) 5W30 Multiviscosity motor oil Freezer (-40° F to 0° F) Consult Factory OIL CAPACITY: Reservoir capacity for the “contractor” (polyethyle
GENERAL MAINTENANCE 1. Change oil once a year or when it materially darkens or feels gritty. Also, check oil for the presence of water (oil will turn milky in color.) 2. NEVER TRY TO DISASSEMBLE OR REPAIR A PUMP IN THE FIELD. These pumps are high-precision devices requiring extreme precision in fit-up. When one is damaged, there is seldom anything that can be repaired in the field. It is also more economical to replace a pump than to refit old parts with new parts. 3.
GENERAL MAINTENANCE The following chart should be referenced in connecting these motors to power sources, remembering that heavy wire must be used all the way to the power-source. 5 HP 208 Volts 230 Volts 460 volts Full Load Amperages 15.8 AMPS 14.8 AMPS 7.4 AMPS NOTE: 115V/1ph/60Hz operation is not recommended. If 115V/1ph operation is absolutely required, the lift will function properly if adequate power is supplied. However, it is very sensitive to deviations from the required power.
GENERAL MAINTENANCE CYLINDER AND/OR SEAL REPLACEMENT Cylinder Removal 1. Lower the lift to the fully lowered position. 2. Continue to hold the “DOWN” button an additional 10 seconds after the lift has stopped traveling downward to relieve the system pressure. 3. Always shut off the main electrical switch when maintenance is to be performed. 4. Unbolt the two hex head bolts that connect the cylinder to the platform. 5. Disconnect the hydraulic hose from the cylinder.
GENERAL MAINTENANCE Re-Installing the Cylinder 1. Reinstall the new cylinder in the reverse procedure of the above instructions. 2. Once the cylinder is in place and all hydraulic connections are made tight, proceed to bleed air out of the system (see “Air Bleeding Procedure” section). 3. Check the oil level. 4. Clean up any debris and/or spilled oil from the area.
AIR BLEEDER SCREW W/ WASHER ROD END STOP 25 RAM CASING RAM CASING DETAIL A 1/4" - 90° FORGED STEEL ELBOW (3000 P.S.I.) GARFILL BUSHING Figure 10 Ram Detail GARFIL BUSHING (2 REQ'D) SPACER TUBE TRUNNION (2 REQ'D) SEAL/PACKING GLAND GLASS FILLED BACKUP RING QUAD RING RAM PLUNGER IN RETRACTED POSITION FOR SEAL REPLACEMENT. SEAL PACKING GLAND RAM PLUNGER (1 1/2" DIA.
GENERAL MAINTENANCE VELOCITY FUSE REPLACEMENT DANGER! Do not attempt to remove the velocity fuse until the lift is securely supported with the maintenance locking devices and all hydraulic pressure has been removed from the lifting cylinders and hydraulic hoses. Failure to follow these instructions could result in personal injury or death! Never attempt to take a velocity fuse apart and repair it. These are precision devices that are factory assembled under exacting conditions.
GENERAL MAINTENANCE ROCK SALT It has been discovered that rock salt is being used to melt the ice and snow off of the platforms in the northern region and during the winter months. Rock salt will accelerate the deterioration of any paint. Therefore, Autoquip recommends the use of a synthetic “Ice Melt” product in lieu of rock salt. Warranty on the paint finish will be denied when it is suspected that rock salt has been used.
GENERAL MAINTENANCE Figure 11 Hydraulic Schematic 28
GENERAL MAINTENANCE Figure 12 Electrical Schematic 29
GENERAL MAINTENANCE Figure 13 Pushbutton Assembly 30
REPLACEMENT PARTS LIST PART # DESCRIPTION 20038006 Portability Wheel 20101143 Bridge Spring 24002511 Molykote Washer 30600613 Motor, 5 HP 208/230/460/60/3PH, 3450 RPM, tang shaft 32701290 Solenoid Coil, 24VAC 32701300 Solenoid Coil, 115VAC 35150080 Control Panel, 208-230V – 115 VAC / 3 phase 36201820 Push Button, NEMA 4 40200630 Pump, 2.99 pm, tang 41800582 Velocity Fuse, 6.
REPLACEMENT PARTS LIST Figure 14 Contractor Power Unit 32
TROUBLESHOOTING ANALYSIS DANGER! To avoid personal injury, NEVER go under the lift platform until the load is removed and the scissors mechanism is securely blocked in the open position. See "Lift Blocking Instructions" section. PROBLEM POSSIBLE CAUSE AND SOLUTION Lift does not raise. • The motor voltage/wiring may be incorrect. • The hydraulic line or hose may be leaking. • Oil in the reservoir may be low. Add oil as necessary (See the “Routine Maintenance” section.) • The load may exceed the rating.
TROUBLESHOOTING ANALYSIS PROBLEM Lift will not lower. POSSIBLE CAUSE AND SOLUTION The down solenoid may be malfunctioning. The maintenance device could be installed. The structural members may be in a bind. The tubing or hose is obstructed or broken. Check for obstruction in the line. • The return filter may be clogged. • The velocity fuse may be locked. Do not attempt to remove the velocity fuse. The following steps should be followed: • • • • 1. Remove the load from the lift.
TROUBLESHOOTING ANALYSIS PROBLEM Lift raises slowly. POSSIBLE CAUSE AND SOLUTION • The structural members of the lift may be binding. • The tubing or hose is obstructed or broken. Where pipe is used, check for obstruction in the line. • The hydraulic line or hose may be leaking. • The oil viscosity is not suited for the environmental conditions. Refer to “Routine Maintenance” section for oil recommendations. • Check the oil level in the reservoir. • The motor voltage/wiring may be incorrect.
TROUBLESHOOTING ANALYSIS PROBLEM Lift will not remain in raised position. POSSIBLE CAUSE AND SOLUTION • The cylinder packing may be leaking. • The pump regulator is not seating. • The pump check valve is not seating. • The hydraulic tubing, hose, or fitting is leaking oil. • The return filter may be clogged.
