Troubleshooting
309858K
19
Troubleshooting
Ram
Electrical Control Panel
Problem
Cause
Solution
Ram does not raise or lower.
Main air valve closed.
Open air valve.
Air line clogged.
Clear air line.
Ram air pressure too low.
Increase ram pressure.
Worn or damaged piston.
Replace piston. See manual
310523.
Control valve closed or clogged.
Open or clear valve or exhaust.
Ram raises or lowers too fast.
Ram air pressure too high.
Decrease ram pressure
Air leaks around cylinder rod.
Worn rod seal.
Replace o-rings in guide sleeve. See
manual 310523.
Fluid squeezes past follower plate
wipers.
Ram air pressure too high.
Decrease ram pressure.
Worn or damaged wipers.
Replace wipers, page 22.
Pump won't prime properly or
pumps air.
Main air valve closed.
Open air valve.
Air line clogged.
Clear air line.
Pump air pressure too low.
Increase pump pressure.
Worn or damaged piston.
Replace piston. See manual
310523.
Control valve closed or clogged.
Open or clear valve or exhaust.
Control valve dirty, worn, or damaged.
Clean or service valve.
Follower stopped by bent drum.
Replace drum.
Air pressure will not hold drum
down or push plate up.
Main air valve closed.
Open air valve.
Air line clogged.
Clear air line.
Ram air pressure too low.
Increase ram pressure.
Valve passage clogged.
Clean valve passage.
Worn piston seal.
Replace seal.
Problem
Cause
Solution
Disconnect is ON, but no indicator
lights are lit.
Ground fault interrupt has been acti-
vated.
Reset Ground Fault Interrupt, page
18.
Fuse(s) blown.
Replace fuse(s).
High Temperature Alarm light on.
Heated component temperature is out of
range.
See High Temperature Alarm,
page 18.
Heat turns off after inactivity timer
is triggered.
Pump inactive longer than programmed
time period.
Reset Auto Heat Off, page 18.
Temperatures are in range, but
pump will not start.
Internal timer has not reached the preset
startup time.
Adjust timer to shorten startup time.
Summary of Contents for Therm-O-Flow 20
Page 43: ...Parts 309858K 43...
Page 48: ...Electrical Schematic 48 309858K Electrical Schematic Part No 617300...
Page 50: ...Electrical Schematic 50 309858K Part No 617484...
Page 52: ...Electrical Schematic 52 309858K Part No 617485...
Page 54: ...Electrical Schematic 54 309858K Part No 617349...
Page 61: ...Dimensions 309858K 61 15 1 Pump President Air Motor Ram 52 1 in 1323 mm 75 in 1905 mm...
Page 62: ...Dimensions 62 309858K...