DLM HED Series Manuale utente

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 • [email protected]

Printed in U.S.A.

Manual No. 4111-0027

Sept. 2010

May 2012

Page

Safety

Recognize Safety Information ............................................................. 1

General Operational Safety Precautions ............................................ 1

Operational Safety Precautions........................................................... 2

Maintenance Safety Precautions......................................................... 4

Safety Decals......................................................................................... 5

Owner’s User’s Responsibilities ......................................................... 6

Introduction

General Information.............................................................................. 7

Dock Leveler Stock Specifications ..................................................... 7

Component Identification..................................................................... 8

Installation

Installation Details ................................................................................ 10

Flush Mount-Weld On.......................................................................... 12

Ramp Mount - Weld/Bolt On .............................................................. 14

Flush Mount - Bolt On ........................................................................ 16

Ramp Mount - Weld On w/Formed Angle ......................................... 18

Formed Angle...................................................................................... 20

Ramp and Face Plate.......................................................................... 22

Installation Check List .........................................................................24

Install Control Panel and Wiring ........................................................26

Put New Dock Leveler Into Service .................................................. 27

Operation

Operating Instructions ....................................................................... 28

Maintenance

Periodic Maintenance ......................................................................... 30

Adjustments

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

Table of Contents

Manual No. 4111-0027

Sept. 2009

May 2012

SAFETY

Recognize Safety Information

Read and understand the operating instructions and

become thoroughly familiar with the equipment and its

controls before operating the dock leveler.

Never operate a dock leveler while a safety device or

guard is removed or disconnected.

Never remove DANGER, WARNING, or CAUTION

signs or decals on the equipment unless replacing

them.

General Operational Safety

Precautions

Do not start the equipment until all unauthorized

personnel in the area have been warned and have

moved outside the operating zone.

Remove any tools or foreign objects from the operating

zone before starting.

Keep the operating zone free of obstacles that could

cause a person to trip or fall.

The use of the word DANGER signifies the presence

of an extreme hazard or unsafe practice which will

most likely result in severe injury or death.

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

instructions in the safety message.

The use of the word WARNING signifies the

presence of a serious hazard or unsafe practice

which may result in serious injury or death.

IMPORTANT

The use of the word IMPORTANT is to draw

attention to a procedure that needs to be followed to

prevent machine damage.

The use of the word CAUTION signifies possible

hazard or unsafe practice which could result in

personal injury.

2Manual No. 4111-0027

Sept. 2009

May 2012

SAFETY

Learn the safe way to operate this equipment. Read and understand the

manufacturer’s instructions. If you have any questions, ask your supervisor.

Operational Safety Precautions

Stay clear of dock leveling device when freight

carrier is entering or leaving area.

Do not move or use the dock leveling device if

anyone is under or in front of it.

Keep hands and feet clear of pinch points. Avoid

putting any part of your body near moving parts.

Chock/restrain all freight carriers. Never remove

the wheel chocks until loading or unloading is

finished and truck driver has been given permission

to drive away.

Do not use a broken or damage dock leveling

device. Make sure proper service and maintenance

procedures have been performed before using.

Make sure lip overlaps onto trailer at least 4 in.

(102 mm).

Keep a safe distance from both side edges.

Manual No. 4111-0027

Sept. 2009

May 2012

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.

SAFETY

4Manual No. 4111-0027

Sept. 2009

May 2012

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.

ALWAYS stand clear of dock leveler lip when

working in front of the dock leveler. Failure to do this

may result in serious personal injury or death.

DO NOT grind or weld if hydraulic fluid or other

flammable liquid is present on the surface to be

ground or welded

DO NOT grind or weld if uncontained hydraulic fluid

or other flammable liquid is present. Stray sparks

can ignite spills or leaks near the work area. Always

clean up the oil leaks and spills before proceeding

with grinding or welding.

Always keep a fire extinguisher of the proper type

nearby when grinding or welding.

Failure to follow these instructions may result in

serious personal injury or death.

Hydraulic and electrical power must be OFF when

servicing the equipment. For maximum protection,

use an OSHA approved locking device to lock

out all power sources. Only the person servicing

the equipment should have the key to unlock the

device.

Always post safety warnings and barricade the

work area at dock level and ground level to prevent

unauthorized use of the unit before maintenance is

complete.

Manual No. 4111-0027

Sept. 2009

May 2012

SAFETY

Safety Decals

Unsupported dock leveler

ramps can lower unexpectedly.

Before allowing vehicle to leave

the dock always:

Ensure that no equipment,

material or people are on the

dock leveler.

Return the dock leveler to its

stored position at dock level.

Failure to follow posted instructions will result in death or serious injury.

SAFETY INFORMATION

Call 262.255.1510 for replacement placards, warning labels, or owner’s/user’s manuals.

Operation

1. Read and follow all instructions and

warnings in the owner’s/user’s

manual.

2. Use of dock leveler restricted to

trained operators

3. Always chock trailer wheels or

engage truck restraint before

operating dock leveler or beginning to

load or unload.

4. Never use hands or equipment to

move the ramp or lip

5. Before activating dock leveler:

 Ensure trailer is backed in against

bumpers.

 Remove any end loads if required.

 Check trailer alignment to avoid lip

interference. If lip does not lower to

trailer bed, reposition vehicle.

6. Ensure that truck bed supports

extended lip or the leveler frame

Supports the ramp before driving on

ramp.

7. Stay clear of hinges and front and

sides of moving dock leveler.

8. Never use damaged or

malfunctioning dock leveler. Report

problems immediately to supervisor.

Maintenance/Service

1. Read and follow all instructions,

warnings and maintenance schedules

in the owner’s/user’s manual.

2. Maintenance/Service of dock leveler

restricted to trained personnel.

3. Place barriers on the driveway and on

dock floor to indicate service work is

being performed.

4. DO NOT ENTER PIT unless dock

leveler is securely supported by

maintenance prop.

5. If electrically powered turn off and use

OSHA lockout/tagout procedures.

DANGER

Unsupported dock leveler

ramps can lower unexpectedly.

Before allowing vehicle to leave

the dock always:

Ensure that no equipment,

material or people are on the

dock leveler.

Return the dock leveler to its

stored position at dock level.

Failure to follow posted instructions will result in death or serious injury.

SAFETY INFORMATION

Call 262.255.1510 for replacement placards, warning labels, or owner’s/user’s manuals.

Operation

1. Read and follow all instructions and

warnings in the owner’s/user’s

manual.

2. Use of dock leveler restricted to

trained operators

3. Always chock trailer wheels or

engage truck restraint before

operating dock leveler or beginning to

load or unload.

4. Never use hands or equipment to

move the ramp or lip

5. Before activating dock leveler:

 Ensure trailer is backed in against

bumpers.

 Remove any end loads if required.

 Check trailer alignment to avoid lip

interference. If lip does not lower to

trailer bed, reposition vehicle.

6. Ensure that truck bed supports

extended lip or the leveler frame

Supports the ramp before driving on

ramp.

7. Stay clear of hinges and front and

sides of moving dock leveler.

8. Never use damaged or

malfunctioning dock leveler. Report

problems immediately to supervisor.

Maintenance/Service

1. Read and follow all instructions,

warnings and maintenance schedules

in the owner’s/user’s manual.

2. Maintenance/Service of dock leveler

restricted to trained personnel.

3. Place barriers on the driveway and on

dock floor to indicate service work is

being performed.

4. DO NOT ENTER PIT unless dock

leveler is securely supported by

maintenance prop.

5. If electrically powered turn off and use

OSHA lockout/tagout procedures.

DANGER

Ramp swings toward you.

Stand Clear.

Use maintenance strut while servicing.

Failure to do so will result in death or

serious injury.

Decal 2 will have two positions, one on the outside of the left bumper and

one on the outside of the right bumper.

Decal 4 represents the placement of the serial tag.

DANGER

CRUSH HAZARD

DO NOT REMOVE hydraulic cylinder until leveler is

safely supported by maintenance prop. Refer to

owner’s/user’s manual for proper maintenance

procedure. Failure to comply will result in death or

serious injury.

6Manual No. 4111-0027

Sept. 2009

May 2012

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. Effective operator training should also focus on the owner’s/user’s company

policies and operating conditions. Maintaining, updating and re training all operators on safe working

habits and operation of the equipment, regardless of previous experience, should be done on a regular

basis and should include an understanding and familiarity with all functions of the equipment. Owner’s/

user’s shall actively maintain, update and retrain all operators on safe working habits and operations of

the equipment.

2. The manufacturer shall provide to the initial purchaser all necessary information regarding Safety

Information, Operation, Installation and Safety Precautions, Recommended Initial and Periodic

Inspections Procedures, Planned Maintenance Schedule, Product Specifications, Troubleshooting

Guide, Parts Break Down, Warranty Information, and Manufacturers Contact Information, as well as

tables to identify the grade(slope) for all variations of length or configuration of the dock leveling device

and information identifying the maximum uncontrolled drop encountered when sudden removal of support

while in the working range of the equipment.

3. It is recommended that when the transportation vehicle is positioned correctly in the dock opening and

in contact with both bumpers, there shall be a minimum of 4.00 inches (100mm) overlap of the leveling

device and the transportation vehicle at all times during the loading and unloading process.

4. The Owner/User must review all name plates, placards, decals, instructions and posted warnings and

place the same in view of the operator or maintenance personnel for whom such warnings are intended

for. Contact manufacturer for any replacements.

5. Manufacturer’s recommended periodic maintenance and inspection procedures in effect at the date of

shipment shall be followed at all times. Written documentation of maintenance, replacement parts or

damage should be retained. In the event of damage notification to the manufacturer is required.

6. Loading dock equipment that has been structurally damaged or has experienced a sudden loss of main

support while under load (such as what might occur when a transport vehicle pulls out from under the

leveling device) shall be removed from service, inspected by a manufacturer’s authorized representative,

and repaired or replaced as needed before being placed back in service.

7. Any modifications or alterations of loading dock equipment shall only be done with prior written approval

from the manufacturer and the same shall be at least as safe as the original equipment was prior to

the modification and shall also satisfy all safety requirements of the manufacturer for the particular

application of the leveling device.

8. When industrial moving devices are being used in the loading or unloading of product from the

transportation vehicle, this vehicle shall have the brakes and wheel chocks applied appropriately or

all other positive restraining device shall be fully utilized. It is recommended that trailers with air-ride

suspension systems shall have its air exhausted prior to performing loading and unloading operation to

minimize trailer bed drop.

9. Loading dock safety equipment should never be used outside of its intended use, vertical working range,

or capacity. Please consult the manufacturer if you have any questions as to the use, vertical working

range or capacity of the equipment. Only properly trained and authorized personnel should operate the

equipment.

10. When selecting loading dock safety equipment, it is important to consider not only present requirements

but also future plans and any possible adverse conditions, environmental factors or usage.

Manual No. 4111-0027

Sept. 2009

May 2012

INTRODUCTION

General Information

HED Series Edge-of-Dock levelers are available in the

following sizes, weight capacities, and options:

Congratulations on your choice of a DLM Edge-of-

Dock leveler. This manual covers the HED series

mechanical Edge-of-Dock levelers.

efficiency, your dock leveler, when properly installed,

will provide many years of trouble-free performance

with an absolute minimum of maintenance. To obtain

maximum performance and longest possible use,

a simple program of preventive maintenance is

recommended.

Once again, thank you and congratulations on your

purchase of a Poweramp hydraulic Edge-of-Dock

leveler.

Dimensions and Capacities

Model # - Deck - Total Unit

Width Width Comparative Industry Rating

HED-66 66” 104”

HED-72 72” 110”

HED-78 78” 116”

HED-84 84” 122”

20,000

25,000

30,000

35,000

The HED series Edge-of-Dock leveler comes equipped

with an electrical control panel, which allows push-

button operation of the dock leveler functions. Each

HED dock leveler unit and control panel has been

factory pre-wired and tested to ensure satisfactory

operation.

To illustrate which connections are to be made

in the field at installation, electrical drawings are

included with each order or by contacting Systems,

Inc. Technical Services.

Once again, thank you and congratulations on your

purchase of a DLM. Hydraulic Edge-of-Dock leveler.

Call Systems Inc to discuss available voltages, phases

and options to meet your specific needs.

8Manual No. 4111-0027

Sept. 2009

May 2012

INTRODUCTION

Component Identification

A — Lip Plate

B —Center Plate

C — Safety Prop

D — Powerpack (Motor/Pump/Reservoir)

E — Hinge Area

F — Lip Cylinder

G — Main Hoist Cylinder

H — Bumper Blocks (2 used)

J —Raise Button

The HED Edge-of-Dock leveler uses hydraulic pressure

and single push-button operation for ease of use.

Platform (B) is raised by pushing and holding the

RAISE button (J). This activates an electric motor (D)

which, in turn, drives a hydraulic pump. The hydraulic

pump forces oil into the platform cylinder (G), causing

the platform to rise. Hold (J) until lip fully extends.

Releasing the raise button will allow the platform to

float down to the bed of the truck trailer bed. The lip

will stay extended until the platform reaches the full

below dock position.

Pressing the raise button will return the platform and

lip to the stored position.

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