Komatsu 4D98 Series Shop Manual page 87

7. Fuel Injection System/Governor
(2)
Components
r-
I-
Delivery valve spring holder -
n
Dellvely vake
Plunger 8 barrel-
_
1
C&LC=l
f
St
Pumphousi?
1
Pinion- '
53
e
Control sleeve -I.&
Plunger spring upper retainer .8
Plunger spring
3
&
Plunger spdng lower retainer
-c$J
Note) This illustration is the standard com-
ponents for the PES-A type.
?he shapes of some park are differ-
ent from those of the fuel injection
pump for this engine.
(3) Disassembly procedure:
(3.1) Disassembly from the engine body
@ Remove the cooling fan, pulley and V-belt. See 4.2(2)@ in Chapter 4.
@ Remove the fuel injection pipe, fuel oil piping, fuel return pipe and rear stay. See 4.2(2)0
in Chapter 4.
@ Remove the fuel injection pump drive gear cover. See 4.3(l) in Chapter 4.
@ Remove the fuel injection pump drive gear. See 4.3(l) in Chapter 4.
(Point 7)
@
Remove the fuel injection pump. See 4.3(2)@ in Chapter 4.
(3.2) Fuel injection pump disassembly
@ Remove the fuel feed pump. See 7.4(l) Components.
@ Remove the governor cover. See 7.5(l) Components.
(Point 2)
@
Remove the governor housing. See 7.5(l) Components.
(Point
3)
@ Remove the bottom screw from the bottom.
(Point 4)
@
Remove the fuel injection pump cover.
@ Bring the tappet away from the camshaft.
(Point 5)
0
Remove the bearing holder.
(Point 6)
@
Remove the camshaft.
(Point
7)
7-2