SEN03852-00
50-200 2 WA250, 250PZ-6
200 Engine and cooling system
Removal and installation of fuel supply pump assembly
Removal and installation of fuel
supply pump assembly
1
Removal
k Stop the machine on a level ground and set
the lock bar to the frame to fix the front and
rear frames.
k Lower the work equipment to the ground,
stop the engine, apply the parking brake,
and put chocks under the tires.
k Disconnect the cable from the negative (–)
terminal of the battery.
1. Open and fix right engine side cover (1).
a Check that the cover is locked securely.
2. Remove fuel prefilter and bracket assembly
(2).
a Fix fuel prefilter and bracket assembly (2)
to the machine with ropes.
3. Disconnect wiring harness connector CN-CP3
(3) from fuel supply pump (4).
4. Disconnect fuel filter hoses (5) and (6) from
fuel supply pump (4).
5. Disconnect fuel return hose (7) from fuel sup-
ply pump (4).
a If mud is sticking, lock (L) may become
stiff. Accordingly, clean the connecting
area.
a Press lock (L) from both sides and pull out
hose (5).
a Plug the disconnected hose to prevent
fuel leakage.
6. Disconnect fuel supply hose (8) from fuel sup-
ply pump (4). [*1]
7. Remove 2 clamps of boot (9) and fuel high-
pressure pipe (10).
8. Disconnect fuel high-pressure pipe (10) from
fuel supply pump (4). [*2]
a Remove the boot on the common rail side
of high-pressure pipe (10) and loosen the
sleeve nut.
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