Ingersoll Rand P1.5IU-A9 Manuel De L'utilisateur page 6

TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE
Abnormal piston, ring or cylinder
wear
Air delivery drops off
Unit does not come up to speed 1. Loose beltwheel or motor pulley, excessive end play in
Unit is slow to come up to speed 1. Lubricant viscosity too high.
Unit runs excessively hot
Excessive noise during
operation
Excessive starting and stopping 1. Air leaks in air discharge piping.
High oil consumption
Knocking or rattling
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1. Lubricant viscosity too low.
2. Lubricant level too low.
3. Detergent type lubricant being used.
4. Cylinder(s) or piston(s) scratched, worn or scored.
5. Extremely dusty atmosphere.
6. Worn cylinder finish.
1. Clogged or dirty inlet and/or discharge line filter.
2. Air leaks in air discharge piping.
3. Lubricant viscosity too high.
4. Compressor valves leaky, broken, carbonized or loose.
5. Piston rings damaged or worn (broken, rough or
scratched). Excessive end gap or side clearance.
6. Piston rings not seated, are stuck in grooves or end gaps
not staggered.
7. Cylinder(s) or piston(s) scratched, worn or scored.
8. Defective safety/relief valve.
motor shaft or loose drive belts.
2. Lubricant viscosity too high.
3. Improper line voltage.
4. Compressor valves leaky, broken, carbonized or loose.
5. Defective ball bearings on crankshaft or motor shaft.
2. Leaking check valve or check valve seat blown out.
3. Ambient temperature too low.
4. Bad motor.
1. Inadequate ventilation around beltwheel.
2. Drive belts too tight or misaligned.
3. Compressor valves leaky, broken, carbonized or loose.
4. Wrong beltwheel direction of rotation.
1. Loose beltwheel or motor pulley, excessive end play in
motor shaft or loose drive belts.
2. Lubricant viscosity too high.
3. Lubricant level too low.
4. Compressor valves leaky, broken, carbonized or loose.
5. Carbon build-up on top of piston(s).
6. Defective ball bearings on crankshaft or motor shaft.
7. Leaking check valve or check valve seat blown out.
2. Pressure switch differential too narrow.
3. Leaking check valve or check valve seat blown out.
4. Excessive condensate in receiver tank.
1. Clogged or dirty inlet and/or discharge line filter.
2. Lubricant viscosity too low.
3. Detergent type lubricant being used.
4. Piston rings damaged or worn (broken, rough or
scratched). Excessive end gap or side clearance.
5. Piston rings not seated, are stuck in grooves or end gaps
not staggered.
6. Cylinder(s) or piston(s) scratched, worn or scored.
7. Connecting rod, piston pin or crankpin bearings worn or
scored.
8. Crankshaft seal worn or crankshaft scored.
9. Worn cylinder finish.
1. Loose beltwheel or motor pulley, excessive end play in
motor shaft or loose drive belts.
2. Compressor valves leaky, broken, carbonized or loose.
3. Carbon build-up on top of piston(s).
4. Cylinder(s) or piston(s) scratched, worn or scored.
5. Connecting rod, piston pin or crankpin bearings worn or
scored.
6. Defective ball bearings on crankshaft or motor shaft.
6
POSSIBLE SOLUTION
1. Drain existing lubricant and refill with proper lubricant.
2. Add lubricant to crankcase to proper level.
3. Drain existing lubricant and refill with proper lubricant.
4. Repair or replace as required.
5. Install remote air inlet piping and route to source of
cleaner air. Install more effective filtration.
6. Deglaze cylinder with 180 grit flex-hone.
1. Clean or replace.
2. Check tubing and connections.
3. Drain existing lubricant and refill with proper lubricant.
4. Inspect valves. Clean or replace as required. Install valve
kit.
5. Install ring kit.
6. Adjust piston rings.
7. Repair or replace as required.
8. Replace.
1. Check beltwheel, motor pulley, crankshaft, drive belt
tension and alignment. Repair or replace as required.
2. Drain existing lubricant and refill with proper lubricant.
3. Check line voltage and upgrade lines as required.
Contact electrician.
4. Inspect valves. Clean or replace as required.
Install valve kit.
5. Inspect bearings and replace crankshaft assembly if
required.
1. Drain existing lubricant and refill with proper lubricant.
2. Replace check valve.
3. Relocate unit to warmer environment.
Install crankcase heater kit.
4. Replace.
1. Relocate unit for better air flow.
2. Adjust belts to proper tension and alignment.
3. Inspect valves. Clean or replace as required. Install valve
kit.
4. Check motor wiring for proper connections. Reverse two
leads on three-phase motors.
1. Check beltwheel, motor pulley, crankshaft, drive belt
tension and alignment. Repair or replace as required.
2. Drain existing lubricant and refill with proper lubricant.
3. Add lubricant to crankcase to proper level.
4. Inspect valves. Clean or replace as required.
Install valve kit.
5. Clean piston(s). Repair or replace as required.
6. Inspect bearings and replace crankshaft assembly if
required.
7. Replace check valve.
1. Check tubing and connections.
2. Adjust pressure switch to increase differential, if
differential adjustment is provided. Install pressure switch
with differential adjustment feature if differential
adjustment is desired.
3. Replace check valve.
4. Drain receiver tank with manual drain valve.
1. Clean or replace.
2. Drain existing lubricant and refill with proper lubricant.
3. Drain existing lubricant and refill with proper lubricant.
4. Install ring kit.
5. Adjust piston rings.
6. Repair or replace as required.
7. Inspect all. Repair or replace as required.
8. Replace seal or crankshaft assembly.
9. Deglaze cylinder with 180 grit flex-hone.
1. Check beltwheel, motor pulley, crankshaft, drive belt
tension and alignment. Repair or replace as required.
2. Inspect valves. Clean or replace as required.
Install valve kit.
3. Clean piston(s). Repair or replace as required.
4. Repair or replace as required.
5. Inspect all. Repair or replace as required.
6. Inspect bearings and replace crankshaft assembly if
required.
P1.5IU-A9