Injection Advance Adjustment; Injector - Kohler KD225 Workshop Manual

10
FUEL SYSTEM
116
117
KD
225
119
- 58 -
118
KD
315
350
400
440
KD 225_315_350_400_440 Workshop Manual_cod. ED0053029330_1° ed_ rev. 00

Injection advance adjustment

Injection advance beyond the thickness of gasket A is determined by
the thickness of the pad inside the injection tappet.
To alter the value of injection advance the pad must be replaced with
another of a suitable thickness (see fig. 117-118).
To extract pad B, use a rod with a suction cap or magnet at one end.
The replacement pads supplied have 10 different thicknesses
(between 4.0 and 4.9mm).
To alter the value of injection advance the pad must be replaced with
another of a suitable thickness (see fig. 117-118).
If reference point B does not coincide with A follow the examples in
fig. 117-118.
1) Example of delayed injection advance (fig. 117): to make B match
up with A, replace the pad with a thicker one (fig. 116).
2) Example of early injection advance (fig. 118): to make B match up
with A, replace the pad with a thinner one (fig. 116).
Note: When the thickness of the pad varies by 0.1mm under the
pump, B is delayed or brought forward by 1° on the flywheel.

Injector

Components:
1 Body
2 Union
3 Adjusting shim
4 Spring
5 Pressure rod
6 Pin
7 Nozzle
8 Nozzle cup
9 Needle valve
10 Tip
11 Duct
12 Return hole
After re-assembly, tighten ring nut 8 to a 50 Nm torque value.