Table 4-1. Troubleshooting - continued
PROBLEM
POSSIBLE CAUSE
REMEDY
Clutch will not
4. Drive rings worn out.
Replace drive rings.
engage - continued
Clutch slips
1. Insufficient air pres-
Inspect entire air line installation for
sure.
any restrictions or leaks which could
decrease the air supply to the clutch.
Check operating valve for full opening.
Carefully inspect clutch for possible
air leakage at the quick release valves
or the tube.
If operating in cold weather, the air
lines may be restricted due to freezing
of the moisture in the air system. The
addition of Denatured alcohol or Ethy-
lene Glycol in the air receiver will
eliminate this problem. Avoid the use
of all rust inhibitors or commercial
antifreeze.
2. Ruptured tube.
Replace tube.
3. Malfunctioning quick
Repair or replace quick release valve.
release valves.
4. Drive rings worn out.
Replace drive rings.
5. Dirt in drive ring.
Disassemble and clean.
Clutch drags or
1. Misalignment of
Realign clutch and driving member.
will not disengage
clutch and driving
member.
2. Dirt in driving ring.
Disassemble and clean.
3. Tight center plate.
Replace center plate.
4. Quick release valves
Repair or replace quick release valves.
stuck.
Clutch overheating
1. Clutch slippage.
Refer to Drive Clutch Slips.
2. Misalignment of
Align clutch and member.
clutch and driving
member.
4-13
