Poweramp EH SERIES HYDRAULIC User Manual download pdf (Page 17)

4111-0004 —November 2003

Rev “B” February 2011

INSTALLATION

11. With the rear hinge frame angle (F) tight against

the rear pit curb angle (G), weld the rear hinge

frame angle (F) to the rear pit curb angle (G)

using a 3/8 in. (9.5 mm) flare bevel skip weld

— each weld being 6 in. (152 mm) long.

Start at each end with a 6 in. (152 mm) long

weld. Space all the other welds out evenly

leaving approximately 6 in. (152 mm) space

between each weld.

12. Weld front of dock leveler frame (B) to shims

located under the keepers, then weld the shims

to the front pit curb steel.

13. With leveler welded into place, remove the

shipping bands from around lip and leveler

frame.

NOTE: The illustration on the previous page shows a

typical weld pattern. The weld pattern will

vary slightly depending on size of dock

leveler.

IMPORTANT

DO NOT weld continuously along the full length of

the rear hinge frame angle. This can put

unnecessary stress on the leveler components,

causing the leveler to malfunction and shorten the

life span of the affected components.

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.

Failure to follow these instructions may damage the

motor, hoist cylinder, wiring, and/or control panel.

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.

If the platform is raised using an external lifting

device or the hydraulic system is opened to

atmosphere, air will enter into the hydraulic system.

Whenever this happens, always cycle the leveler at

least 4 times using the leveler’s own hydraulic

power system before allowing the leveler to be put

into service. This is to make sure all air is purged

from the hydraulic cylinders. Failure to do this may

result in serious personal injury or death.

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Poweramp EH SERIES HYDRAULIC User Manual Page 17

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