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For technical questions call 1-800-665-8685
Twin Tank Wheelbarrow Portable Air Compressor
V 3.03
8474488
PROBLEM
CAUSE
SOLUTION
Knocking
1. Lack of oil in crankcase
2. Worn piston pin
3. Worn main bearings
4. Worn connecting rod
5. Excessive crankshaft
end play
6. Piston hitting head due
to foreign matter/
carbon deposits.
1. Add oil
2. Replace pin
3. Replace bearings
4. Replace inserts or
rod assembly
5. Consult Princess
Auto Ltd.
6. Inspect, repair
or replace valves
& pistons
Low
Discharge
Pressure/
Pumps
Slowly
1. Air leaks
2. Broken or dirty valves
3. Restricted air intake
4. Blown gaskets
5. Defective gauges
6. Pump too small
for application
1. Check system for
air leaks
2. Replace or clean valves
and valve plates
3. Replace filter element
4. Replace gaskets
5. Replace gauges
6. Contact Princess
Auto Ltd.
Excessive Oil
Consumption
1. Restricted or dirty
air filter
2. Crankcase is over-filled
with oil
3. Worn piston rings
1. Clean or replace
air filter
2. Drain oil and refill to
proper lever
3. Contact Princess
Auto Ltd.