Komatsu 4D95LE-2 - ADJUSTING FUEL INJECTION PRESSURE

TESTING AND ADJUSTING ADJUSTING FUEL INJECTION PRESSURE
ADJUSTING FUEL INJECTION PRESSURE
(CRACKING PRESSURE)
1. Remove retaining cap (I).
2. Remove nozzle (2), spring seat (3), and noz-
zle spring (4).
3. Adjust thickness of shim (5) to adjust injec-
tion pressure (cracking pressure).
Jr Pressure adjustment for 0.1 mm of shim
thickness:
Approx. 1.47 MPa (15 kg/cm2}
Retaining cap:
44 = 5 Nm I4.5 0.5 kgml
SWEO I250
SHIM DATA FOR ADJUSTING INJECTION PRESSURE
Unit: mm
Engine
Range
of shim clearance
Range
of shim thickness
Shape
I I I
Inner dia.= 2.1
4D95LE-2
Outer dia.=
7.2
0.1 - 0.58
0.025
Part No. Thickness (mm)
Part No.
Thickness (mm)
DKI 50534-3600
0.500
DKI 50534-4000
0.580
DK150534-4400
0.400
DKI 50534-3900
0.560
DK150534-4300
0.300
DKI 50534-3800
0.540
DK150534-4200
0.200
DK150534-3700
0.520
DKI 50534-41
00
0.100
95-2 SERIES
1 2-5