10. Troubleshooting
Symptoms
Cause
Remedy
knocking in the
loose crank bolts
tighten the bolts
crankshaft
bushings worn out
replace the big end bushings
assembly
bearings worn out
replace the main bearings
bad contact between working
tighten the set screw in the head
valve and head seat
cover
excessive play between piston
replace sleeve and fit new one to
knocking in the
head sleeve and piston pin
piston pin
cylinder
excessive play of rings in piston replace piston rings
grooves
valve plate or spring cracked in replace the plate, check cylinder
the valve
bearing surface
severe overheating causing
remove and clean the piston and
cylinder bearing surface, check oil
other acoustic
piston seizing
quality
disturbances in
large amounts of carbon
the compressor
check the piston rings fit in
deposits on the cylinder bearing
grooves
surface
oil is too viscous or
check oil quality, replace if
contaminated
necessary
oil temperature
insufficient quantity of oil
replenish until maximum level is
too high
reached
bearings fitted too close
fit properly
contaminated bearings
rinse bearings
leaking or damaged working
repair and check valves for
valves
tightness
protection for piston rings in
remove deposits from rings and
reduced
grooves
grooves
compressor
excessive wear
replace the rings in piston rings
performance
leaking connection between the
find and repair leakage
compressor and air system
safety valves are leaking gas
blow or replace the valve with new
one
increase in the
intercooler contaminated
clean and wash the intercooler
compressed air
contaminated surfaces in
clean heads and cylinders
temperature
cylinders and heads
pressure gauge
overflow valve ill-adjusted
tighten the overflow valve screw
indicates that
the pressure is
not enough oil in the crankcase add oil
too low
11. Consumables
Name Part
No.
Quantity
1 Oil
filter
MFS0006
2
2 Vent
cartridge
UFW0003
2
3 V-belt
MPK0012
4
4
Synthetic oil PNEUMOIL ST150
COL0045*
2 x 3,6 L
*5L package
