Troubleshooting - Kelley aFX-C User Manual

TroUbLesHooTing

Before troubleshooting the dock leveler, read and follow
the Safety Practices on page 3 and the Operations
Instruction section on pages 16 through 19 of this User's
Manual.
Be certain, before climbing into the dock leveler pit or
doing any maintenance or repair under the dock leveler,
that: 1) THE MAINTENANCE STRUT IS IN POSITION
AND PINNED, LIP LOCK IS IN PLACE AND SUPPORTING
THE LIP [see Fig. 31 on page 23] and 2) the power is
disconnected and properly tagged or locked off.
Before doing any electrical work, make certain the power
is disconnected and properly tagged or locked off.
probLeM
1) Leveler does not raise. Motor fails to
run.
2) Leveler does not raise or does not raise
completely. Motor runs.
26
©2014 4Front Engineered Solutions, Inc.
possibLe CaUse
a) Fuse blown or breaker tripped.
b) No electrical power to push-button.
c) Push-button is broken.
d) Fan plug loose or unplugged in
receptacle.
e) Loose wires in control panel or junction
box.
f) Fan assembly damaged/broken.
a) Obstruction(s) preventing the leveler
from raising.
b) holes or leaks in the lifting bag.
c) Loose or misaligned bag fittings or loose
bag clamps.
d) Motor voltage too low.
6004752K — aFX-C Dock Leveler — Safe
noTe:
Follow Service Tools use instructions on pages 23 through
25.
Fig. 40
Notch
Center Bolt
Roller
Push Bar
a) Replace fuse or reset breaker.
b) Check all power supplies to control
panel and make sure connections are
tight.
c) Replace push-button.
d) Check and tighten connection to
receptacle.
e) Repair or replace wires.
f) Replace fan assembly.
a) If an obstruction is found, turn off
power before attempting to clear the
obstruction.
b) Order the patch kit from your dealer or
Kelley
large, replace bag assembly.
c) Repair or replace as required. See parts
list on page 36-37.
d) Verify motor voltage is between 110-129
volts AC while motor is running at full
load.
T
Frame
®
Hanger Bracket
Swing Link
Dock Leveler
Ramp
Lip
Connecting Rod
Pit Floor
soLUTion
to repair holes. If holes are too
®
March 2014