17
310524
Troubleshooting
PROBLEM
CAUSE
SOLUTION
Ram won’t raise or lower
Closed main air valve or clogged
air line
Open air valve, clean air line
Ram won’t raise or lower
Not enough air pressure
Increase ram pressure
Worn or damaged piston
Replace piston. See procedure in Form
#310523.
Hand valve closed or clogged
Open, clear hand valve or exhaust
Ram raises or lowers too fast
Ram air pressure too high
Decrease ram air pressure
Air leaks around cylinder rod
Worn rod seal
Replace o-rings in guide sleeve. See
procedure in form #310523.
Fluid squeezes past follower plate
i
Ram air pressure too high
Decrease ram air pressure
wipers
Worn or damaged wipers
Replace wipers. See procedure on page
19
Material pump won’t prime proper-
ly, only pumps air.
Closed main air valve or clogged
air line
Open air valve, clear air line
Not enough pump air pressure
increase pump pressure
Worn or damaged piston
Replace piston. See procedure in Form
# 310523.
Hand valve closed or clogged
Open, clear hand valve or exhaust
Hand valve dirty, worn or dam-
aged
Clean, service hand valve
Bent drum has stopped follower
Replace drum
Air pressure won’t hold drum
down or push plate up
Closed main air valve or clogged
air line
Open air valve, clear air line
Not enough ram air pressure
Increase ram air pressure
Valve passage clogged
Clean valve passage
Worn piston seal
Replace seal
