Jenny Reciprocating Air Compressors, Operation And Maintenance Manual

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49
Problem Possible Cause Possible Solution
Fittings not tight enough or leaking. Warning drain air before tightening:
tighten f ttings where air can not be
heard escaping. Check joint with
soap solution. Do not overtighten.
Pressure regulator knob not
turned to high enough pressure or
defective pressure regulator.
Adjust pressure regulator knob to
proper setting or replace.
Hose or hose connections are to
small or long.
Replace with larger hose or
connectors.
Possible defective reed valve.
(Hand Carry Units)
Remove pump head and inspect
valve plate and (reed) valve. Clear
or replace valves as required.
High oil consumption. Lubricant viscosity too low Drain existing lubricant and ref ll
with Jenny Ultimate Blue Synthetic
lubricant.
Extremely light duty cycles. Run unit for longer duty cycles
Piston rings damaged or worn
(broken, rough, or scratched).
Excessive end gap or side
clearance. Piston rings not
seated, are stuck in grooves or end
gaps not staggered.
Install new rings.
Cylinder or piston scratched, worn,
or scored.
Repair or replace as required.
Connecting rod, piston pin, or
crank wrist pin bearings worn or
scored.
Inspect all. Repair or replace as
required.
Crankshaft seal worn or crankshaft
scored.
Replace seal or crankshaft
assemby.
Worn cylinder f nish. Deglaze cylinder with 180 grit f ex-
hone.
Air compressor on unlevel surface. Do not incline the air compressor
more than 10° in any direction
while running.
Plugged oil crankcase vent. Clean.
Unit runs excessively hot. Clogged or dirty inlet and or
discharge line f lter.
Clean or replace.
Lubricant viscosity too low Drain existing lubricant and ref ll
with Jenny Ultimate Blue Synthetic
lubricant.
Lubricant level too low Add Jenny Ultimate Blue Synthetic
Oil to crankcase to proper level.
Check for bearing damage.
Detergent type lubricant being
used.
Drain existing lubricant and ref ll
with Jenny Ultimate Blue Synthetic
lubricant.
Cylinder or piston scratched, worn,
or scored.
Repair or replace as required.