Table 3-1. Operator/Crew Troubleshooting (Con't).
TEST OR INSPECTION
ONE OR MORE LAMPS (BUT NOT ALL) WILL NOT LIGHT
Check for broken lead wires (8) or loose connectors (7).
If connectors (7) are loose, or if lead wires (8) are broken, notify unit maintenance.
BRAKES DO NOT APPLY.
Check that air supply from tractor is turned on. Refer to tractor operator's manual.
If air is turned off, turn on air.
Check air pressure in tractor. Refer to tractor operator's manual.
If pressure is low or not present, troubleshoot tractor air system.
Check connection of air lines (9) to air couplings (10) (para 2-5).
If air lines (9) are not properly connected, disconnect and connect properly (para 2-5).
Check for dirty, leaking, or damaged air couplings (10).
If air couplings (10) are dirty, clean.
If air couplings (10) are damaged or leaking, notify unit maintenance.