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DLM HED Series Owner & User Manual

Hydraulic eod dock leveler
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HED SERIES
Hydraulic EOD Dock
Leveler
Owner's/User's Manual
DLM • Division of Systems, Inc. • W194 N11481 McCormick Drive • Germantown, WI 53022
800.643.5424 • fax: 262.255.5917 • www.docksystemsinc.com • techservices@docksystemsinc.com
Printed in U.S.A.
Manual No. 4111-0027
Copyright
2009
Sept. 2010
©
May 2012

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  • Page 1 HED SERIES Hydraulic EOD Dock Leveler Owner’s/User’s Manual DLM • Division of Systems, Inc. • W194 N11481 McCormick Drive • Germantown, WI 53022 800.643.5424 • fax: 262.255.5917 • www.docksystemsinc.com • techservices@docksystemsinc.com Printed in U.S.A. Manual No. 4111-0027 Copyright 2009 Sept. 2010 ©...

  • Page 2: Table Of Contents

    Adjust Main Pressure Relief .............. 33 Adjust Lip Function ................34 Electrical Single Phase ..................36 Three Phase ..................37 Troubleshooting Troubleshooting .................. 38 Parts HED Series ................... 40 Bumper Components ................. 42 Miscellaneous Customer Information ................ 45 Warranty ................Back Cover...

  • Page 3: Safety

    SAFETY Recognize Safety Information General Operational Safety Precautions Safety-Alert Symbol The Safety-Alert Symbol identifies important safety messages on equipment, safety signs, in manuals, or elsewhere. When you see this symbol, be alert to the possibility of personal injury or death. Follow the Read and understand the operating instructions and instructions in the safety message.

  • Page 4: Operational Safety Precautions

    SAFETY Operational Safety Precautions Learn the safe way to operate this equipment. Read and understand the manufacturer’s instructions. If you have any questions, ask your supervisor. Stay clear of dock leveling device when freight Chock/restrain all freight carriers. Never remove carrier is entering or leaving area.
  • Page 5 SAFETY Do not use dock leveling device if freight carrier is too high or too low. Do not overload the dock leveling device. Do not operate any equipment while under the influence of alcohol or drugs. Do not leave equipment or material unattended on dock leveling device.

  • Page 6: Maintenance Safety Precautions

    SAFETY Maintenance Safety Precautions ALWAYS disconnect electrical power source and ground wire before welding on dock leveler. DO NOT ground welding equipment to any hydraulic or electrical components of the dock leveler. Always ground to the dock leveler frame. Failure to follow these instructions may result in damage to dock leveler and/or serious personal injury or death.

  • Page 7: Safety Decals

    SAFETY Safety Decals SAFETY INFORMATION DANGER Operation Supports the ramp before driving on 1. Read and follow all instructions and ramp. warnings in the owner’s/user’s 7. Stay clear of hinges and front and Unsupported dock leveler manual. sides of moving dock leveler. 2.

  • Page 8: Owner's User's Responsibilities

    OWNER’S/USER’S RESPONSIBILITIES 1. The owner/ user should recognize the inherent dangers of the interface between the loading dock and the transportation vehicle. The owner/ user should, therefore, train and instruct all operators in the safe operation and use of the loading dock equipment in accordance with manufacturer’s recommendations and industry standards.

  • Page 9: Introduction

    Comparative Industry Rating mechanical Edge-of-Dock levelers. Width Width HED-66 66” 104” 20,000 Designed by DLM to be a marvel of simplicity and 25,000 HED-72 72” 110” efficiency, your dock leveler, when properly installed, will provide many years of trouble-free performance 30,000 HED-78 78”...

  • Page 10: Component Identification

    INTRODUCTION Component Identification A — Lip Plate D — Powerpack (Motor/Pump/Reservoir) G — Main Hoist Cylinder B —Center Plate E — Hinge Area H — Bumper Blocks (2 used) C — Safety Prop F — Lip Cylinder J —Raise Button THEORY The HED Edge-of-Dock leveler uses hydraulic pressure Releasing the raise button will allow the platform to...
  • Page 11 INTRODUCTION This page intentionally left blank Manual No. 4111-0027 Sept. 2009 May 2012...

  • Page 12: Installation

    INSTALLATION INSTALLATION DETAILS ANCHOR BOLT OR PLUG WELD Post safety warnings and barricade the work area at DO NOT grind or weld if hydraulic fluid or other dock level and ground level to prevent unauthorized flammable liquid is present on the surface to be use of the dock leveler before installation has been ground or welded.
  • Page 13 INSTALLATION IMPORTANT DO NOT connect the dock leveler electrical wiring and ground connections until all welding has been completed. DO NOT ground welding equipment to any hydraulic or electrical components of the dock leveler. Always ground welding equipment to the dock leveler frame, NEVER to the platform.

  • Page 14: Flush Mount-Weld On

    INSTALLATION H.E.D. Installation Instructions - Flush Mount - Weld On A flush mount weld on application is used when an 8” 9. Drill 5/8” dia. by 5” deep holes in concrete through wide (minimum) embed channel is securely anchored holes in lower cylinder mount, and install anchor into the concrete at the dock edge, and the dock bolts with washers and tighten securely.
  • Page 15 INSTALLATION Manual No. 4111-0027 Sept. 2009 May 2012...

  • Page 16: Ramp Mount - Weld/Bolt On

    INSTALLATION H.E.D. Installation Instructions - Ramp Mount - Weld/Bolt On A ramp mount-weld on application is used when adequate 9. Break tack welds holding ramp in place, slide ramp dock steel is securely anchored in the concrete at the dock plate back into position with the top of the ramp plate edge, but the existing dock height is too low and the dock flush with the top of the base plate.
  • Page 17 INSTALLATION Manual No. 4111-0027 Sept. 2009 May 2012...

  • Page 18: Flush Mount - Bolt On

    INSTALLATION H.E.D. Installation Instructions - Flush Mount - Bolt On A flush mount bolt on application is used when there is edge of ramp plate. Slide ramp plate forward over dock no steel on dock edge, and the dock height is adequate. leveler the width of bushing tool, approximately 2”.
  • Page 19 INSTALLATION Junction Securely block or support ramp and lip when in vertical positions. Lack of proper bracing can result in ramp dropping during adjustment or installation causing personal injury or damage to unit. NOTE DESCRIPTION Top of base plate and bumper cover plate to be flush with top of ramp plate.

  • Page 20: Ramp Mount - Weld On W/Formed Angle

    INSTALLATION H.E.D. Installation Instructions - Ramp Mount - Weld On w/Formed Angle A ramp mount-weld on used with a formed angle application 10. Break tack welds holding ramp in place, slide ramp is used when dock edge is damaged, there is no dock steel plate back into position with the top of the ramp plate securely anchored into the concrete, and the dock height is flush with the top of the base plate.
  • Page 21 INSTALLATION Manual No. 4111-0027 Sept. 2009 May 2012...

  • Page 22: Formed Angle

    INSTALLATION H.E.D. Installation Instructions - Formed Angle A formed angle is used when there is no existing dock steel and concrete at the dock edge has been damaged. The formed angle is required to rebuild the damaged concrete edge for a proper installation if the dock height is adequate.
  • Page 23 INSTALLATION Manual No. 4111-0027 Sept. 2009 May 2012...

  • Page 24: Ramp And Face Plate

    INSTALLATION H.E.D. Installation Instructions - Ramp and Face Plate A ramp mount requiring a face plate application is used portion of the anchor bolt exposed through he nut, when there is no existing dock steel and the concrete at and plug weld around the top of the nut to the anchor the dock edge has been damaged.
  • Page 25 INSTALLATION Manual No. 4111-0027 Sept. 2009 May 2012...

  • Page 26: Installation Check List

    INSTALLATION CHECK LIST E.O.D. Installation Checklist Date: __________ Order No.: __________ Serial Number:______________ Installer: ____________________________ Customer Name: _____________________ Address: ____________________________ City/State: ___________________________ Zip: __________ Phone: _________________  1. Unit is properly aligned and installed properly.  2. All welding has been fully completed. ...
  • Page 27 INSTALLATION This page intentionally left blank Manual No. 4111-0027 Sept. 2009 May 2012...

  • Page 28: Install Control Panel And Wiring

    INSTALLATION Install Control Panel and Wiring The electrical power must be OFF prior to electrical installation. For maximum protection, use an OSHA approved locking device to lock out all power sources. Only the person installing the equipment should have the key to unlock the power source. Failure to follow these instructions may result in serious personal injury or death.

  • Page 29: Put New Dock Leveler Into Service

    INSTALLATION Put New Dock Leveler Into Service 1. Disconnect the external lifting device 2. Install the dock bumpers as required. 3. Turn the main electrical power ON. 4. Raise the leveler platform fully by pushing and holding the RAISE button. NOTE: The platform of a properly operating dock leveler will automatically stop rising when it reaches its full raised height, at which point, the lip extends.

  • Page 30: Operation

    OPERATION Operating Instructions Stay clear of dock leveler when freight carrier is 5 in. (127 mm) entering or leaving dock area. DO NOT move or use the dock leveler if anyone is under or in front of leveler. 5 in. (127 mm) Keep hands and feet clear of pinch points.
  • Page 31 OPERATION 3. Always remove any end load while leveler is in 1. Make certain all equipment and personnel are stored position. (Figure 1). clear of leveler before operation. 4. Press and hold “RAISE” (A) button until leveler 2. The truck should be firmly against the bump extends fully (Figure 3).

  • Page 32: Maintenance

    MAINTENANCE Periodic Maintenance P O W E R A M P D L M N C. L o a d i n g D o c k E q u i p m e n t NL-X MAINTENANCE PROP DRAWN BY CHECKED BY DATE 8/6/2009...
  • Page 33 MAINTENANCE Periodic Maintenance Regular maintenance must be performed on a weekly and quarterly schedule. Weekly Maintenance • Operate the dock leveler through the complete operating cycle to maintain lubrication. NOTE: To thoroughly inspect the platform hinge area, put the platform in the full below-dock position. M -- Reservoir N- 3 in.
  • Page 34 NOTES This page intentionally left blank Manual No. 4111-0027 Sept. 2009 May 2012...

  • Page 35: Adjustments

    ADJUSTMENTS Adjust Main Pressure Relief When service under the dock leveler is required, always lock all electrical disconnects in the OFF position after raising the platform and engaging the maintenance prop. Failure to do this may result in serious personal injury or death. Always post safety warnings and barricade the work area at dock level and ground level to prevent unauthorized use of the dock leveler before...

  • Page 36: Adjust Lip Function

    ADJUSTMENTS Adjust Lip Function 1. Raise platform fully and engage the maintenance When service under the dock leveler is required, prop in the service position. Allow platform to rest always lock all electrical disconnects in the OFF on the prop so the lip will fully fold until it contacts position after raising the platform and engaging the the lip stops.
  • Page 37 ADJUSTMENTS This page intentionally left blank Manual No. 4111-0027 Sept. 2009 May 2012...

  • Page 38: Electrical

    ELECTRICAL 1 Phase Manual No. 4111-0027 Sept. 2009 May 2012...
  • Page 39 ELECTRICAL 3 Phase Manual No. 4111-0027 Sept. 2009 May 2012...

  • Page 40: Single Phase

    TROUBLESHOOTING Before performing the detailed troubleshooting procedures, check the following items first: • Make sure the correct voltages are preset at the proper locations inside the control panels Symptom Possible Cause Solution Motor overload device Reset overload relay (three-phase). Determine cause tripped or fuse blown.
  • Page 41 TROUBLESHOOTING Symptom Solution Turn sequence valve clockwise approximately 1/4 turn and retest unit. If the lip plate still will not retract, repeat the above Unit raises but the lip plate will not retract. adjustment until unit operates properly. Unit raises but the lip plate will not extend.

  • Page 42: Parts

    PARTS SIZE/CAPAC- ITEM DESCRIPTION PART NUMBER (15” LIP) PART NUMBER (17” LIP) 6620/25 Lip Plate & Hinge Assembly DOTH-4100 DOTH-4111 6630 Lip Plate & Hinge Assembly DOTH-4104 DOTH-4195 6635 Lip Plate & Hinge Assembly DOTH-4129 DOTH-4133 7220/25 Lip Plate & Hinge Assembly DOTH-4106 DOTH-4166 7230...
  • Page 43 PARTS SIZE/CAPAC- ITEM DESCRIPTION PART NUMBER (15” LIP) 6620/25 Center Plate & Hinge Assembly DOTH-4200 6630 Center Plate & Hinge Assembly DOTH-4208 6635 Center Plate & Hinge Assembly DOTH-3231 7220/25 Center Plate & Hinge Assembly DOTH-4212 7230 Center Plate & Hinge Assembly DOTH-4220 7235 Center Plate &...

  • Page 44: Bumper Components

    PARTS DBBS-3550 Complete 18” Projection Bumper Assembly ITEM PART NUMBER DESCRIPTION SIZE DOTH-3556 18” Proj. x 12” BB Weldment (HED) DOTH-3505 Rubber - TUF-Cord 4 X 12 X 13 DOTH-2056 Hex HEad Cap Screw 7/16-14 UNC X 3-1/4 DOTH-2210 Washer - Flat - Zinc Plated 1/2”...
  • Page 45 PARTS This Page Intentionally Left Blank Manual No. 4111-0027 Sept. 2009 May 2012...

  • Page 46: Miscellaneous

    MISCELLANEOUS This page intentionally left blank Manual No. 4111-0027 Sept. 2009 May 2012...

  • Page 47: Customer Information

    MISCELLANEOUS Customer Information NOTE: The model/serial number decal (A) is located Dock Leveler Information on the right platform joist near the front (lip) of dock leveler. Model ___________________________________ When you receive your HED-series Edge-of-Dock Serial No._________________________________ leveler, write down the dock leveler model and serial number in the form provided.

  • Page 48: Warranty

    STANDARD PRODUCT WARRANTY SYSTEMS, INC. warrants that its products will be free from defects in design, materials and workmanship for a period of one (1) year from the date of shipment. All claims for breach of this warranty must be made within 30 days after the defect is or can with reasonable care, be detected.

This manual is also suitable for:

Hed-66Hed-84Hed-72Hed-78

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