5609 RS 01/17
PAGE 18
©2017 4Front Engineered Solutions, Inc. - APS Resource
TROUBLESHOOTING
Do not service this product unless you have read
and followed the Safety Practices, Warnings, and
Operation instructions contained in this manual.
Failure to follow these safety practices could result
in death or serious injury.
1. Lights do not work and the hook does not move.
1.1 No power in control box. Check
the fused disconnect and fuse block in
the control box and the circuit breaker for
incoming power to the control box.
1.2 Not wired properly. Refer to the wiring
diagram inside the control box and
check all wiring and connections.
2. Lights are working but the hook does not move.
2.1 Drive chain is either loose or broken.
Adjust or replace as needed.
2.2 No power to motor. Check all wiring
connections from the control box to the
motor.
2.3 Drive motor not working. Replace.
2.4 "ENGAGE" or "RELEASE" push-button
switch not working. Replace as needed.
2.5 Keyswitch is in "RESTRAINT
OVERRIDE/HORN SILENCE" position.
Turn keyswitch to "NORMAL" position.
3. Lights are working but the hook does not move all
the way up or down.
3.1 Incoming voltage is low. Check voltage.
3.2 Motor mounting bolts are loose. Check
for proper alignment between the
sprockets and retighten bolts.
4. Hook moves but none of the lights work.
4.1 LED modules burned out. Check LED
modules and replace as needed.
4.2 Bad wiring connections. Check all wiring
connections. A good ground is required.
5. Hook and horn work but the lights do not change
from red to green or green to red.
5.1 Not wired properly. Check wiring.
5.2 Limit switch LS2 not working. Replace.
6. Hook and lights work but the alarm horn does not
work.
6.1 Not wired properly. Check wiring.
6.2 Alarm horn not working. Replace.
6.3 Limit switch not working. Replace.
7. Hook and lights work but the alarm horn
continuously sounds.
7.1 Not wired properly. Check wiring.
7.2 Limit switch LS2 not working. Replace.
8. Carriage assembly does not return to the proper
stored position.
8.1 Springs are either weak or broken.
Replace.
8.2 Roller track plate bent. Check for proper
installation and replace if necessary.
8.3 Carriage not moving freely up and down
in the track. This may be due to an
obstruction in the roller track. STOP!
Do not work on or around the Vehicle
Restraint. Under this condition the
springs may be under considerable
tension and without properly securing
the carriage assembly, the Vehicle
Restraint is unsafe to work on or around.
Call an approved and qualied technician
familiar with the APS Resource line
of products. For a list of approved and
qualied technicians call APS Resource
at 262-518-1000.
TROUBLESHOOTING
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