MMD Equipment 100S-6B4 - Manual (Page 9)

1. Safety
1-6
1.2 Caution during Operation
Do not replenish compressor oil during operation
Do not, under any circumstance, open the oil filler cap of
separator receiver tank while running or immediately after
stopping operation.
It is very dangerous and cause serious injury.
Relieve all pressure before performing any maintenance.
W010
Draining during operation prohibited
Do not, under any circumstance, open the items listed below
during operation:
Separator receiver tank drain valve
Coolant drain valve and plug
Engine oil drain plug
Oil cooler drain plug
PK0028
Beware of cooling fan
Never put your hand near the engine cooling fan during
operation.
W009
Hands off from rotating parts and belts
Keep hands off from the rotating portion or belts while running.
TR0304