TM 9-2330-359-14&P
Table 3-1. Operator/Crew Troubleshooting (Con’t).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2 .
ONE OR MORE LAMPS (BUT NOT ALL) FAIL TO LIGHT.
Step 1.
Check for burned out lamps.
Notify organizational maintenance if lamps are burned out.
Step 2.
Check for broken lead wires and loose connections.
Clean and tighten connections.
Notify organizational maintenance if any lead wires or wiring harness require replacement.
Step 3.
Check light assemblies for damage.
Notify organizational maintenance if light assemblies require repair or replacement.
3.
DIM OR FLICKERING LIGHTS.
Step 1.
Step 2.
Step 3.
Check for loose, dirty, or corroded terminals.
Clean and tighten terminals as necessary.
Check for damaged lamp.
Notify organizational maintenance if lamp requires replacement.
Check semitrailer electrical receptacle and towing vehicle electrical connector for dirty and cor-
roded contacts.
Clean electrical receptacles and contacts.
BRAKES
4.
BRAKES WILL NOT RELEASE.
WARNING
Chock wheels to prevent semitrailer from moving when brakes are released. Failure to
follow this warning may result in serious injury or death.
NOTE
In the event of air system pressure loss, failsafe units on center axle will automatically
apply brakes. If semitrailer must be moved and there is not enough air system pressure
to compress spring in spring brake chambers to release brakes, you will have to do this
manually (para 2-16).
Step 1.
Check for proper air coupling connections at towing vehicle and semitrailer (para 2-10).
Connect air couplings.
Step 2.
Check for air leaks in brake hoses and connectors.
Notify organizational maintenance if hoses or connectors require replacement.
3-7
