Notes - RIDGID GP90135 Operator's Manual

Troubleshooting
TROUBLE PROBABLE CAUSE
Excessive noise 5. Worn bearings
(knocking)
Continued 6. Piston hitting the valve
plate
7. Noisy check valve
Oil in the discharge 1. Worn piston rings
air 2. Compressor air intake
restricted
3. Restricted breather
4. Excessive oil in compres-
sor
5. Wrong oil viscosity
6. Connecting rod out of
alignment
REMEDY
5. Replace worn bearings
and change oil
6. Remove the compressor
head and valve plate and
inspect for carbon deposits
or other foreign matter on
top of piston. Replace
head and valve plate using
new gasket
7. Replace
1. Replace with new rings
2. Clean filter. Check for other
restrictions in the intake
system
3. Clean and check breather
for free operation
4. Drain down to full level
5. Use SAE 30 (ISO 100)
non-detergent compressor
oil
6. Replace rod
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Notes

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