Table 1. Operator's Preventive Maintenance Checks and Services for Drum (Continued)
Item To Be
Coupler valve installed onto drum.
Check both coupler valves for:
Proper locking and unlocking operation of cam arm assemblies (1)
when installing or removing coupler valve from adapter assembly
(2) or dispensing hose.
will not properly
Leaks where coupler valve connects to adapter assembly (2).
Leaks at coupler valve outlet when coupler valve is shut off.
valve in place.
Leaks at or around valve stem (3) and packing nut (4).
Check adapter assemblies (1) on both ends of drum for looseness and
(1) leaks or is