WÄRTSILÄ VASA 6L32, Instruction Manual

Page: 257 / 394

16.2 Maintenance of injection pump
Most maintenance operations can be done without removing the
multihousing from the engine. It is recommendable that the
engine will be run 5 minutes with light fuel before stopped for
overhaul of injection pump. During maintenance utmost cleanli-
ness must be observed.
16.2.1 Removal of injection pump and guide block
1 Shut off fuel supply
to the engine and stop the prelubri-
cating pump. Remove necessary covers.
2 Drain out the fuel from
the multihousing fuel pipes by us-
ing a drain plug at the end part of the fuel pipes, see Fig 17-1.
3 Turn the crankshaft
so that the injection pump tappet is
in the bottom position, the roller resting on the base circle of
the cam.
4 Remove necessary pipes,
injection pipe, fuel leak pipes
and lube oil pipe. Disconnect the fuel rack.
5 Open the fuel pipe connections
between the injection
pump concerned. Open hexagon socket screws and remove
locking plates. Move the fuel line connecting sleeves clear of
the adjacent fuel pipes by using the tool 800039.
6 Open the injection pump fastening nuts (31).
7 Mount the lifting tool 800073
and lift off the pump.
8 Open the fuel pipe connections
between the multi-
housings concerned. Open hexagon socket screws and remove
locking plates. Move the fuel line connecting sleeves clear of
the adjacent fuel pipes by using the tool 800039.
9 Open the guide block fastening screws
and lift off the
guide block with the extractor tool 800140.
10 Cover immediately all openings
with tape or plugs to
prevent dirt from entering the system.
32-200627-01 Injection System 16
WÄRTSILÄ 32 16 - 3