27
Manual No. 4111-0019
May 2015
July 2016
TROUBLESHOOTING
Symptom Possible Cause Solution
Platform does not rise.
Heavy object(s) on platform. Remove object(s) from platform.
NOTE: For safety reasons, the dock leveler is
designed to lift only the platform’s own
weight.
Disconnected or broken
release chain.
Connect or replace chain.
Dock leveler binds. Check for visible obstructions that could cause
binding. Check weather seal if equipped.
If no obstructions found, call Technical Services.
See inside back cover for phone number and
address.
Platform rises slowly or
does not rise to the full
raised position.
Heavy object(s) on platform. Remove object(s) from platform.
NOTE: For safety reasons, the dock leveler is
designed to lift only the platform’s own
weight.
Dock leveler binds. Check for visible obstructions that could cause
binding. Check weather seal if equipped.
If no obstructions found, call McGuire Technical
Services. See inside back cover for phone number
and address.
Insufficient main spring
tension.
Increase tension on main springs. (See Adjust Lift
Arm Spring and Lip Assist Spring Tension in the
Adjustments section.)
Damaged or worn
hold-down mechanism.
Clean and inspect hold-down mechanism.
Troubleshooting
Always post safety warnings and barricade the
work area at dock level and ground level to prevent
unauthorized use of the dock leveler before
maintenance is complete. Failure to follow these
instructions could result in death or serious injury.
Always stand clear of the dock leveler lip when
working in front of the dock leveler.
The maintenance prop MUST be in the service
position when working under the dock leveler.
For maximum protection, use an OSHA approved
locking device to lock the maintenance prop in
the service position. Only the person servicing
the equipment should have the key to unlock the
maintenance prop.
Failure to follow these instructions could result in
death or serious injury.
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