Kubota M9540, Workshop Manual

Page: 167 / 619

1-S44
M8540, M9540, WSM ENGINE
(3) Injection Pump Unit
Injection Pump Unit
(Removing the fuel injection pump unit)
1. Remove the timer lubricating pipe (1).
2. Remove the gear cover (2) for the fuel injection pump unit from
the gearcase.
3. Set the timer 0
°
restoring jig (4) to the timer gear (3).
4. Place the piston of the 4th cylinder at the top dead center in the
compression stroke. Fix the flywheel with the flywheel stopper.
IMPORTANT
Q
• Look for the align mark on the idle gear 2. Using a white
marking pen or the like, put an align mark on the engaged
tooth of the idle gear. This helps to reassemble these gears
in mesh later.
NOTE
Q
• When the already existing align marks align with each other,
there is no need to put another align mark.
5. Unscrew the two plugs (7) of the injection pump unit.
6. Tighten the upper fuel camshaft lock screw (9) until it comes into
contact with the fuel camshaft. Make sure the camshaft does not
move any longer.
7. Tighten the lower fuel camshaft lock screw (9) until it comes into
contact with the fuel camshaft.
NOTE
Q
• Never overtighten the lock screws when they have come into
contact with the camshaft. Otherwise the injection pump
itself may get damaged.
• Use of a socket set screw (dog point type) in recommended
for best results. Such screw can be constructed as shown
in figure (a).
(To be continued)
A M8
×
Pitch 1.25
B 5.0 mm dia. (0.20 in. dia.)
C 4.0 mm (0.16 in.)
D 45 mm (1.8 in.)
E 10 mm (0.39 in.) : Conspicuously Painted
KiSC issued 09, 2008 A