TM 1-1740-221-13&P&P
FIELD MAINTENANCE
PARK POSITION BRAKE TROUBLESHOOTING
INITIAL SETUP:
Test Equipment
Multimeter (WP 0157, Item 14)
Tools and Special Tools
General Mechanic Tool Box (WP 0157, Item 24)
Personnel Required
91B Light Wheel Vehicle Mechanic (2)
Equipment Condition
Engine Shutdown
References
TROUBLESHOOTING PROCEDURE
PARK POSITION BRAKE Troubleshooting Procedures
WARNING
Do not attempt to service or otherwise make any adjustments, connections, or re-connections
of wires until SATS is shut down and batteries are disconnected. Remove all rings, watches,
and other jewelry when performing maintenance on this equipment.
The use of Personal Protective Equipment (PPE) is required when using or handling hazardous
materials associated with operating and maintaining equipment (jet fuel, hydraulic luid, brake
luid, ethylene glycol, cleaning solvents, compressed air, and engine/axle oil). Failure to use
PPE when handling these materials could result in injury or death.
BRANCH 1.
PARK POSITION BRAKE WILL NOT ENGAGE
CONDITION/INDICATION
Does park position circuit breaker CB2 have continuity?
DECISION
YES Proceed to Step 2.
NO Replace park position circuit breaker CB2 (WP 0122).
BRANCH 2.
2.
Check that the transmission gear selector is in the park position (WP 0005).
CONDITION/INDICATION
Is gear selector in the park position?
DECISION
YES Proceed to Step 3.
NO Place the gear selector in park (WP 0005).
00121
