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Autoquip PLTC-6050 Installation, Operation And Service Manual

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INSTALLATION, OPERATION
AND SERVICE MANUAL
PLTC SCISSORS DOCK LIFT
1058 West Industrial Avenue  Guthrie, OK 73044-1058  888-811-9876
405-282-5200  FAX: 405-282-3302  www.autoquip.com
Item # 830PLT
Version 6.0
10/2017
1

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  • Page 1 INSTALLATION, OPERATION AND SERVICE MANUAL PLTC SCISSORS DOCK LIFT 1058 West Industrial Avenue  Guthrie, OK 73044-1058  888-811-9876 405-282-5200  FAX: 405-282-3302  www.autoquip.com Item # 830PLT Version 6.0 10/2017...

  • Page 2: Table Of Contents

    Introduction And Warranty ......................4 Introduction ..........................4 1.1.1 Identification .......................... 4 1.1.2 Inspection ..........................4 1.1.3 Planned Maintenance Program ..................... 4 Responsibility Of Owners/Users ....................4 1.2.1 Deflection ..........................4 1.2.2 Inspection & Maintenance ..................... 5 1.2.3 Removal From Service ......................5 1.2.4 Repairs ..........................
  • Page 3 General Maintenance ....................... 33 6.3.1 Hydraulic Cylinder Repair ....................33 6.3.2 Bleeding Air From System ....................36 6.3.3 Hydraulic Velocity Fuse and Flow Control (VF/FC) Replacement ........36 6.3.4 Hose Orientation ......................... 37 6.3.5 Schematics and Field Wiring Details ................... 38 6.3.6 Troubleshooting ........................

  • Page 4: Introduction And Warranty

    If you have any questions, call a local dealer or Autoquip Corporation at 1-888-811-9876 or 405-282-5200. Please record the following information and refer to it when calling your dealer or Autoquip. Model Number:________________Serial Number: ___________________ Installation Date _____/_____/_____ 1.1.1 Identification...

  • Page 5: Inspection & Maintenance

    Verify all safety devices are operational and in place.  Autoquip warrants this lift for 60,000 cycles each warranty year. This number of cycles represents normal, single shift duty. Exceeding this number of cycles shortens life of lift and length of your warranty.

  • Page 6: Warranty

    Limited Warranty, is limited to the replacement of the equipment. This warranty shall not apply to any Autoquip lift or parts of Autoquip lift that have been damaged or broken in transit/shipping, or due directly or indirectly to misuse, abuse, vehicle impact, negligence, faulty installation, fire, floods, acts of God, accidents, or that have been used in a manner contrary to the manufacturer’s limitations or recommendations as stated in the manual, or that have been repaired,...

  • Page 7: Specifications

    Axle Load Capacity (inches) (lbs) Width Length Height Weight Clevis End Roller End Sides (inches) (inches) (inches) Approx. (Bridge) (lbs) (lbs) (lbs) (lbs) PLTC-6050 5000 2800 3000 3000 2500 6050A 5000 3300 3000 3000 2000 6050S 5000 3400 2000 2000 2500 6050B...

  • Page 8: Lift Specifications

    Exceeding this number of cycles shortens life of lift and length of your warranty It is the responsibility of the user to notify Autoquip whenever a specific application is likely to demand “above normal” duty from lift. Above normal duty typically requires supplemental design features to...

  • Page 9: Safety

    3. SAFETY 3.1 Safety Signal Words This Owner’s Manual covers PLTC lift models produced by Autoquip. Before installing, operating or servicing lift, you must read, understand and follow the instructions and safety warnings in this manual. Your lift may not be equipped with some optional equipment shown in this manual.

  • Page 10: Hydraulics

    Do not drain or pour any fluids or lubricants into ground. Check with local environmental agencies, recycling centers, or your Autoquip dealer for correct disposal information. i CAUTION Any time velocity fuses have been tripped, investigate cause of trip and verify necessary corrective actions have been taken prior to operation of lift.

  • Page 11: Maintenance

    3.6 Modifications i WARNING Prevent serious injury or death. Do not modify lift. Autoquip cannot foresee and is not responsible for injury or damage which results from unauthorized modifications or misuse of lift.

  • Page 12: Labels

    3.7 Labels i WARNING To protect against death or serious injury, all labels must be on lift and must be legible. If any of these labels are missing or cannot be read, call Autoquip for replacement labels.
  • Page 13 1 – DECAL_CAPACITY 2 – 36430050 3 – 36401487 4 – 36401560 5 – 06100010...
  • Page 14 6 – 36403225 7 – 36400265 8 – 36400257 9 – 36403720 10 – 36433670...

  • Page 15: Installation

    2. Because an Autoquip "Super-Torque" motor actually delivers substantially more horsepower than the nameplate rating, it must always be wired for heavier current-draw than standard motors of the same nameplate rating.

  • Page 16: Pit Installation

    i WARNING Prevent serious injury or death. Electrical service installation must be performed by a licensed electrician and conform to all local and national electrical codes. 4.3 Pit Installation i WARNING Do not install lift in a pit unless lift has a bevel toe guard or other approved toe protection.
  • Page 17 PLT Pit Detail See Pit Installation Notes...
  • Page 18 4. Make temporary hose connections with high-pressure hose (see chart below) to allow the lift to be operated when it is set in the pit. 5. Temporarily connect electrical service and hydraulic hoses. The hose connection on the end of the base frame is 1/2"...
  • Page 19 Lifting and Installation...
  • Page 20 19. Clean up debris and spilled oil from area. Dispose of oil in an environmentally safe manner. 20. Touch-up paint is available from Autoquip for repair of damaged paint surfaces. 21. Train personnel on lift operation, all safety features and procedures.

  • Page 21: Surface Installation

    4.4 Surface Installation Surface installation procedures are the same as for pit installation instructions with the following consideration: The surface area where the lift will be set must be flat and level NOTICE and be of sound concrete of sufficient thickness to support the lift while loaded at full capacity.

  • Page 22: Bridge Lifting Chain Installation - Steel Bridge

    4.6 Bridge Lifting Chain Installation – Steel Bridge...

  • Page 23: Bridge Lifting Chain Installation - Aluminum Bridge

    4.7 Bridge Lifting Chain Installation – Aluminum Bridge...

  • Page 24: Bridge Winch Installation - Steel Bridge

    4.8 Bridge Winch Installation – Steel Bridge...

  • Page 25: Bridge Winch Installation - Aluminum Bridge

    4.9 Bridge Winch Installation – Aluminum Bridge...

  • Page 26: Pit Modification & Installation For Mechanical Wheel Chock

    4.10 Pit Modification & Installation for Mechanical Wheel Chock...

  • Page 27: Accordion Skirt Installation

    4.11 Accordion Skirt Installation 1. Position platform in raised position. Engage maintenance device (see “Maintenance Device” section). Remove the handrails. Position accordion with weight rod pocket at bottom and mounting collar at top. The breathable material when provided must be positioned at top of skirt with mounting collar.

  • Page 28: Operation

    4.12.2 which states “When a hinged bridge is in its fully lowered position and not resting on a truck bed or landing, it should hang down at an angle not to exceed approximately 45 degrees from horizontal.…” Autoquip’s standard is to allow 20° of drop below horizontal.

  • Page 29: Maintenance

    6. MAINTENANCE 6.1 Maintenance Device i WARNING NEVER go under a raised lift platform until load is removed and lift is securely blocked in raised position with maintenance device. Lock-out/tag-out power source. This procedure describes the only factory-approved method of working under a lift. Follow these instructions EVERY time you plan to reach or crawl beneath the lift to perform service or maintenance –...
  • Page 30 Figure 6.1...

  • Page 31: Routine Maintenance

    i DANGER If for any reason you are unable to lower the lift completely onto the maintenance devices, stop immediately and consult the factory. Failure to properly use the factory approved maintenance devices could result in severe injury or death. 5.

  • Page 32: Every Day Or 10 Hours Of Operation

    Hydraulic hoses can fail from age, damage and exposure. Do not search for hydraulic leaks without body and face protection. A tiny, almost invisible leak can penetrate the skin, requiring immediate medical attention. Use wood or cardboard to detect hydraulic leaks, never your hands. i WARNING Spilled hydraulic fluid is slippery and may also present a fire hazard.

  • Page 33: Oil Requirements

    Outdoor locations: 10 degrees F below 0 to 100 degrees F. 5W 20 or 5W 30 Multiviscosity Motor Oil Cold Storage Warehouse: 10 - 40 degrees F. Contact local Autoquip Service Rep. Note: All oils are detergent type. 6.2.5 Oil Capacity *Contractor Polyethylene Tank: Oil capacity is approximately: (5.5) gallons or (22) quarts.
  • Page 34 6.3.1.2. Replace Cylinder Seals 1. Insert spanner wrench and turn upper bearing assembly clockwise until tip of retainer appears in slot. 2. Place a small screwdriver under retainer and turn retainer to remove. 3. Be sure hose port is open to allow air into cylinder. Pull piston rod out to remove upper bearing. 4.
  • Page 35 Figure 6.3 – Cylinder Seals...

  • Page 36: Bleeding Air From System

    Do not use Teflon tape on hydraulic threaded connections. Tape fragments may damage hydraulic system. Autoquip recommends replacing any NPT fittings that have been disassembled due to their inherent design for sealing. 1. Check that lift anchors are tight (when used). Check all pins and other mechanical and hydraulic connections.

  • Page 37: Hose Orientation

    NOTICE on hydraulic threaded connections. Tape fragments may damage hydraulic system. Autoquip recommends replacing any NPT fittings that have been disassembled due to their inherent design for sealing. 2. Apply Loctite PST #567 pipe thread sealant or equivalent to threads and install fuse to cylinder with arrow pointing away from cylinder.

  • Page 38: Schematics And Field Wiring Details

    6.3.5 Schematics and Field Wiring Details Electric Schematic; 5HP/ 3Ph Contractor or Vertical Power Unit...
  • Page 39 Electric Schematic; 5HP/ 3Ph Continuous Running Vertical Power Unit...
  • Page 40 Electric Schematic; 5HP/ 1Ph/230V Vertical Power Unit...
  • Page 41 Electric Schematic; 3HP/ 1Ph/115V Vertical Power Unit...
  • Page 42 Hydraulic Schematic – Contractor Power Unit...
  • Page 43 Hydraulic Schematic – Vertical Power Unit...
  • Page 44 Hydraulic Schematic – Continuous Running Vertical Power Unit...
  • Page 45 Push Button Wiring Diagram...
  • Page 46 Guarded Foot Switch Wiring Diagram...
  • Page 47 Guarded Foot Switch Assembly...
  • Page 48 Optional Limit Switch Mounting Diagram – PLTC-6050 to 6060...
  • Page 49 Optional Limit Switch Mounting Diagram – PLTC-6070 to 58150...

  • Page 50: Troubleshooting

    6.3.6 Troubleshooting i WARNING Prevent serious injury or death. Disconnect and/or lock out electrical supply to power unit prior to any maintenance being performed. i WARNING Prevent serious injury or death. Never go under lift platform until load is removed and scissors mechanism is securely blocked in open position.
  • Page 51 PROBLEM POSSIBLE CAUSE AND SOLUTION Lift Does Not Motor rotation for a 3-phase motor may be reversed. Reverse two motor electrical Raise. leads. Check for line or hose leak. Check for low oil in reservoir. Add specified oil as necessary. Load may exceed rating.
  • Page 52 This step may need to be repeated several times to fully remove air in system by raising the lift to 50% of its travel and lowering. If above steps do not correct problem, contact Autoquip to obtain instruction for further action.
  • Page 53 Inadequate wiring can starve motor even when source voltage is ample. Most of Autoquip’s standard motors are rated for intermittent duty. If a single-phase motor is being run more than 15 – 20 motor starts per hour, or a 3-phase motor more than 200 starts per hour, the problem may be motor over-heating.

  • Page 54: Parts Lists

    7. PARTS LISTS Contractor Power Unit...
  • Page 55 Vertical Power Unit...
  • Page 56 Continuous Running Vertical Power Unit...

This manual is also suitable for:

Pltc-6050bPltc-6050aPltc-6050kPltc-6050sPltc-6060aPltc-6060b ... Show all

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