Makita MAC3001 Manuel D'instructions page 14

PROBLEM
Excessive
vibration
Compressor
uses too much
oil
14
TROUBLESHOOTING GUIDE
POSSIBLE CAUSE
Loose compressor, motor, or
guard
Excessive discharge pressure
Compressor not level
Leg bolts tightened too tightly to
floor
Wrong oil being used
Loose flywheel, drive pulley or
drive belts
Worn rods, wrist pin or main
bearings
Clogged inlet filter
Wrong oil being used, wrong
viscosity
Oil level too high
Crankcase breather valve
malfunction
Compressor operating outside
in cold conditions or inlet filter
not protected against weather
Worn piston rings
Piston rings not seated
Compressor runs unloaded too
long
CORRECTIVE
ACTION
Tighten components
Reduce operating
pressure
Level compressor
Loosen leg bolts
Drain and replace
with proper oil
Tighten loose
components and
check belts
Check and replace
worn parts
Clean inlet filter or
replace if necessary
Drain and replace
with proper oil
Fill compressor with
oil to proper level
Replace crankcase
breather
Provide adequate
protection against
extreme weather
conditions
Replace piston rings
Allow for 100hrs of
normal operation for
rings to seat
Increase load or
stop compressor
when not needed
(check for air leaks)