ARMY TM 9-6115-673-13&P
AIR FORCE TO 35C2-3-512-1
Table 4-19. No
Indication On
HOURS Meter (M3)
Troubleshooting
No indication on
HOURS meter (M3)
Check for loose or corroded
OK
Not OK
connectors at
HOURS meter (M3)
OK
Not OK
Clean and tighten connectors
TB1-2,
A2-VMAG+
M3(+), and E1
M3(-)
TB1-2
(MEP-531A)
TB1-3,
A2-VMAG+
M3(+), and E1
M3(-)
TB1-3
(MEP-501A)
Test for defective
Replace or repair
Not OK
OK
HOURS meter (M3),
defective wiring
Replace defective
Contact next higher
HOURS meter (M3),
maintenance level