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)
assemblies (1) will
when installing or removing coupler valve from adapter assembly
not properly lock
(2) or dispensing hose.
coupler valve in
Leaks where coupler valve connects to adapter assembly (2).
place. Any leakage
Leaks at or around valve stem (3) and packing nut (4).
Check adapter assemblies (1) on both ends of drum for looseness
(1) leaks or is loose.