TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
2. BAP FRONT PIN LOCK WILL NOT OPERATE (continued).
7.
KNOWN INFO
TEST OPTIONS
HEMTT air supply fully
Does BAP front
Verify repair.
charged.
pin lock operate?
REASON FOR QUESTION
BAP air supply hose
connected to HEMTT air
If BAP front pin lock
supply coupling.
operates, fault has been
BAP control valve
corrected.
activated.
HEMTT air supply
pressure OK.
Air line between BAP air
supply hose and control
Fault not corrected.
valve OK.
Notify Direct
Control valve OK.
NO
Support
Air lines between control
maintenance.
valve and front pin lock
air cylinders OK.
Air cylinders and
breathers OK.
YES
Fault corrected.
4-44
