.
MAINTENANCE
SERVICE PROCEDURE
MAINTENANCE
SERVICE PROCEDURE
NOTICE
Do not fill the fuel filter cartridge with fuel.
Remove cap (B) and install the fuel filter.
4.
Clean the filter holder, coat the packing surface of the new filter
cartridge thinly with oil, then install the filter cartridge to the filter
holder.
5.
When installing, tighten until the packing surface contacts the seal surface of the filter holder, then tighten it 3/4
of a turn.
If the filter cartridge is tightened too far, the packing will be damaged and this will lead to leakage of fuel. If the
filter cartridge is too loose, fuel will also leak from the packing, so always tighten the correct amount.
Bleed the air as follows:
6.
Open the cock(1) and loosen air bleeding plug (3).
7. Loosen the knob of primimg pump (4), move it up and down,
and continue until no more bubbles come out with the fuel from
air bleed plug (3).
8. Tighten air bleed plug (3), push in the knob of priming pump (4),
then tighten it.
9.
After replacing the filter cartridge, start the engine and check
for leakage from the filter seal surface.
REMARK
When only the filter cartridge is replaced, it is suffficient that air bleeding is carried out for the filter head alone. But
when the fuel piping is removed, air bleeding should also be carried out for the injection pump air-bleeding valve.
CHECK TIGHTENING PARTS OF TURBOCHARGER
Contact your Komatsu distributor to have the tightening portions checked.
4 - 61
To Next Page
Loading...
