W 3 2 S E R I E S
H I G H P R E S S U R E B R E A T H I N G A I R C O M P R E S S O R
61
3.0 TROUBLE SHOOTING
3.1 COMPRESSOR WILL NOT OPERATE
•
Motor starter overload tripped
Re-start and check if it trips again. If it does, check if
the automatic drain works properly, do not let the
compressor run under load.
•
Low oil level inside the crankcase
Check oil level and add oil if required, push the
“Reset” button and re
-start it.
•
Pressure switch (Available on
Automatic Start/Stop Controlled W32
Mariner and W32 Canopy models only)
not making contact
Check all the terminals and wires. If pressure switch is
defective, replace it.
3.2 EXCESSIVE NOISE DURING OPERATION
•
Loose sheave, flywheel, belt, belt-
guard, intercooler, bolts or accessories
Detect and tighten
•
Faulty vibration mounts
Check if the mounts are in good condition; if
damaged, replace. (damaged vibration mounts can
cause the baseplate to hit the base of canopy.)
•
Lack of oil in the crankcase
a. Check for possible damage to bearings.
b. Fill oil and check if the noise persists
•
Piston hitting the valve plate
Remove the compressor cylinder head; replace the
gasket with the brandnew gasket and reassemble
•
Deflected crankshaft or crankshaft
bearing failure
Replace the crankshaft.
•
Excessive dirt or carbon on piston(s)
Remove the compressor air heads; clean pistons and
valve(s) , or replace if worn; reassemble.
3.3 COMPRESSOR KNOCKS
•
Crankshaft bearing failure
Replace bearings or crankshaft assembly
•
Connecting rod journal bearings worn
Replace the connecting rods; if worn, replace the
crank pin bush as well.
•
Wrist pins and journals are worn
Replace complete pin and rod assembly.
3.4 MILKY OIL IN RECERVOIR
•
High moisture and dirt content in the
ambient air
a. Pipe air intake from less humid source.
b. Change oil more frequently
Section
3
