TM 10-8110-202-13 & P
Table 2-1. Operator/Crew Preventive Maintenance Checks and Services - Continued
B - Before Operation
D - During Operation
A - After Operation
ITEM TO BE INSPECTED
Coupler Valve Installed Onto Drum.
Check both coupler valves for:
Proper locking and unlocking operation of cam arm
assemblies (1 ) when either installing or removing
coupler valve from adapter assembly (2) or dis-
Leaks where coupler valve connects to adapter
Leaks at coupler valve outlet when coupler valve
is shut off.
Leaks at or around valve stem (3) and packing nut (4).
Check adapter assemblies in both ends of drum for:
Looseness and leakage.
Cam arm as-
valve in place
and if any leak-
age is dis-
bly leaks or is