TM 5-3820-276-10-2
OPERATOR MAINTENANCE
SERVICE BRAKES DO NOT APPLY OR HARD TO STOP VEHICLE - WATER WELL DRILLING RIG (WWDR)
INITIAL SETUP:
References
Equipment Condition
Engine off (Volume 1, WP 0012)
TROUBLESHOOTING PROCEDURE
SERVICE BRAKES DO NOT APPLY OR HARD TO STOP VEHICLE - WWDR
SYMPTOM
Brakes do not operate properly.
MALFUNCTION
Air system will not build pressure.
CORRECTIVE ACTION
WARNING
Do not operate vehicle when primary or secondary air pressure is below 70 psi
(483 kPa). Brakes will not operate properly when air pressure is below 70 psi
(483 kPa). Failure to comply may result in injury or death to personnel. Seek
medical attention in the event of an injury.
Start engine (Volume 1, WP 0012) and observe air pressure gauge to verify if air pressure
increases (Figure 1).
0094-1
02/13/2013root(tswp)wpno(T10012)