Rolair 5715K17 Manuel D'instruction page 13

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WARNING
Make sure you completely understand all of the safety warnings and operation of each system
control component before attempting any maintenance or repair. Always drain the tank pressure completely, make
sure the power cord is unplugged, and unit has time to cool before performing any maintenance or service
operations.
PROBLEM
Pump is slow to build tank pressure
Excessive oil consumption
Knocking noise
Overheating compressor
Electric motor dead,
will not even hum
Motor trips overload/reset button
Gasoline engine is hard to start
TROUBLESHOOTING
CAUSE
Loose/slipping belt
Excessive leaks in system
Blown gasket
Broken reed valve
Obstructed intake filter
Leaking regulator
Defective pilot valve
Too much oil in crankcase
Improper weight of oil
Obstructed crankcase vent
Dirty/plugged intake filter
Worn piston rings
Scored cylinder
Loose pulley or flywheel
Loose belts
Internal pump problem
Poor ventilation
Improper pump rotation
Internal pump problem
Thermal overload tripped
Reset physically broken
Loose motor leads or electrical
connection
Short in power cord
Motor is starting/stopping
excessively
Overload is defective/weak
Improper gauge of extension cord
Stripped or poorly tightened motor
thru bolts
Cracks in end bell or housing
Fouled, incorrect, or improperly
gapped spark plug
Improper engine oil level
Improper weight of pump or engine
oil
Improper or old gas
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SOLUTION
Adjust belt tension
Correct air leaks
Replace head gaskets
Replace reed valves
Clean or replace intake element
Replace regulator
Replace pilot valve
Drain to proper level
Replace with proper oil
Replace dipstick or oil fill
plug/crankcase vent
Clean/replace intake filter
Take unit in for service
Take unit in for service
Tighten appropriate parts
Adjust belt tension
Take unit in for service
Relocate compressor
Contact an electrician
Take unit in for service
Locate and push reset button
Replace overload/reset
Locate and correct loose electrical
connection(s)
Replace power cord
Install constant speed or dual control
kit
Replace overload
Use longer lengths of air hose or
heavier cord
Retighten or replace stripped thru
bolts
Take unit in for service
Install proper spark plug after
gapping to factory specs
Fill to top of threads for oil plug
Change to proper weight of oil for
operating temperature
Take unit in for service