Makita MAC5501G Use and Care Manual download pdf (Page 17)

PROBLEM

System pressure leaking back Check and replace check

through check valve when valve if necessary

compressor is stopped.

Wrong oil being used Drain and replace with proper

oil

Excessive Loose compressor, engine or Tighten components

vibration engine guard

Compressor not level Level compressor

Leg bolts over tightened to Loosen leg bolts

floor

Excessive discharge pres- Reduce operating pressure

sure

Wrong oil being used Drain and replace with proper

oil

Loose flywheel, drive, pulley Tighten loose components and

or drive belts check belts

Worn connector rods, wrist Check and replace worn parts

pin or main bearings

Compressor Compressor valves loose or Check and replace worn or

Knocks broken broken valves

Check valve knocks at low Remove and clean check

pressure valve

Compressor Clogged inlet filter Clean inlet filter or replace as

uses too necessary

much oil Wrong oil being used, wrong Drain and replace oil

viscosity

Oil level too high Fill compressor with oil to

proper level

Crankcase breather valve Replace crankcase breather

malfunction

Compressor runs unloaded Increase load or stop compres-

too long sor when not needed. Check

for air leaks

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TROUBLE SHOOTING

POSSIBLE CAUSE

CORRECTIVE ACTION

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Makita MAC5501G Use and Care Manual Page 17