22204945 Rev C
EN-13
EN
PROBLEM
POSSIBLE CAUSE
POSSIBLE SOLUTION
Excessive noise during operation
Loose beltwheel or motor pulley, excessive
end play in motor shaft or loose drive belts.
Check beltwheel, motor pulley, crankshaft,
drive belt tension and alignment. Repair or
replace as required.
Lubricant viscosity too high
Drain existing lubricant and refill with proper
lubricant
Lubricant level too low
Add lubricant to crankcase to proper level
Compressor valves leaky, broken, carbonized
or loose.
Inspect valves. Clean or replace as required.
Install valve kit
Carbon build-up on top of piston(s).
Clean piston(s). Repair or replace as required.
Defective ball bearings on crankshaft or
motor shaft.
Inspect bearings and replace crankshaft
assembly if required
Leaking check valve or check valve seat
blown out.
Replace check valve.
Excessive starting and stopping
Air leaks in air discharge piping.
Check tubing and connections
Leaking check valve or check valve seat
blown out.
Replace check valve
Excessive condensate in receiver tank
Drain receiver tank with manual drain valve
High oil consumption
Clogged or dirty inlet and/or discharge line
filter.
Clean or replace
Lubricant viscosity too low
Drain existing lubricant and refill with proper
lubricant
Detergent type lubricant being used
Drain existing lubricant and refill with proper
lubricant
Piston rings damaged or worn (broken, rough
or scratched). Excessive end gap or side
clearance
Install ring kit
Piston rings not seated, are stuck in grooves
or end gaps not staggered
Adjust piston rings
Cylinder(s) or piston(s) scratched, worn or
scored
Repair or replace as required
Connecting rod, piston pin or crankpin
bearings worn or scored
Inspect all. Repair or replace as required
Crankshaft seal worn or crankshaft scored
Replace seal air crankshaft assembly
Worn cylinder finish
Deglaze cylinder with 180 grit flex-hone
Knocking or rattling
Loose beltwheel or motor pulley, excessive
end play in motor shaft or loose drive belts.
Check beltwheel, motor pulley, crankshaft,
drive belt tension and alignment. Repair or
replace as required.
Compressor valves leaky, broken, carbonized
or loose.
Inspect valves. Clean or replace as required.
Install valve kit
Carbon build-up on top of piston(s).
Clean piston(s). Repair or replace as required.
Cylinder(s) or piston(s) scratched, worn or
scored
Repair or replace as required
Connecting rod, piston pin or crankpin
bearings worn or scored
Inspect all. Repair or replace as required
Defective ball bearings on crankshaft or
motor shaft.
Inspect bearings and replace crankshaft
assembly if required
RELEASED 05/Apr/2018 15:16:08 GMT
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