Spec Sheet

52
Problem Possible Cause Possible Solution
Fittings not tight enough or leaking. Warning drain air before tightening:
tighten fi ttings where air can not be
heard escaping. Check joint with
soap solution. Do not overtighten.
Defective or rusted air tank Air tank must be replaced. Do not
attempt to repair air tank
Water in oil due to condensation. Drain oil. Refi ll to proper level with
Jenny Ultimate Blue Synthetic Oil.
Unit located in damp or humid
location.
Relocate unit.
Oil in discharge air (oil pumping) Lubricant viscosity too low Drain existing lubricant and refi ll
with Jenny Ultimate Blue Synthetic
lubricant.
Extremely light duty cycles. Run unit for longer duty cycles
Carbon build up on top of piston Clean piston. Repair or replace as
required.
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.
Worn cylinder fi nish. Deglaze cylinder with 180 grit fl ex-
hone.
Crankcase overfi lled with oil. Drain oil. Refi ll to proper level with
Jenny Ultimate Blue Synthetic Oil.
Plugged oil crankcase vent. Clean.
Oil leaking from shaft seal Crankshaft seal worn or crankshaft
scored.
Replace seal or crankshaft
assembly.
Safety relief valve “pops” or reliefs
pressure.
Possible defective safety/relief
valve
Operate safety relief valve
manually by pulling on test ring. If
it still leaks, replace.
Excessive air tank pressure Adjust pilot valve or pressure
switch. If problem still exists
replace pilot valve or pressure
switch.
Air leaks at pump. Defective gaskets. Replace and torque head bolts to 6
- 7 ft lb.
Fittings not tight enough or leaking. Warning drain air before tightening:
tighten fi ttings where air can not be
heard escaping. Check joint with
soap solution. Do not overtighten.