Kubota M108S, Workshop Manual

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1-S27
M108S, WSM ENGINE
(4) Common Rail System (CRS)
Supply Pump
1. Set the No. 4 piston at the compression top dead center.
NOTE
■
• When setting the No. 4 piston at the compression top dead
center, turn the flywheel counterclockwise and align the
mark on the flywheel housing (1) and the TC mark on
flywheel (2) temporarily.
And open the supply pump gear cover (3). If the timing mark
of supply pump gear (6) meshes to the teeth of idle gear 2 (7),
it is No. 4 piston at the compression top dead center.
If not so, turn the flywheel counterclockwise once more.
2. Put the mark on teeth of idle gear 2 (8) with white pen temporarily.
NOTE
■
• This white mark is very useful to align the timing between
the supply pump gear and idle gear 2 when reassembling.
3. Fix the flywheel.
4. Remove the supply pump gear mounting nut (5).
5. Remove the supply pump gear (4) with gear puller (9).
6. Remove the injection pipes (10), overflow pipe (11), overflow
hose (13) and fuel hose (14).
7. Remove the supply pump mounting nuts (12).
8. Remove the supply pump (15).
IMPORTANT
■
• Do not disassemble the supply pump.
• Keep the supply pump away from dust.
W1053566
(1) Mark on Flywheel Housing
(2) TC Mark on Flywheel
(3) Supply Pump Gear Cover
(4) Supply Pump Gear
(5) Supply Pump Gear Mounting Nut
(6) Timing Mark of Supply Pump Gear
(7) Idle Gear 2
(8) Mark on Teeth of Idle Gear 2 (9) Gear Puller
(10) Injection Pipe
(11) Overflow Pipe
(12) Supply Pump Mounting Nut
(13) Overflow Hose
(14) Fuel Hose
(15) Supply Pump
(16) O-ring
KiSC issued 06, 2007 A