Komatsu 114E-3 Series Shop Manual page 331

50 Disassembly and assembly
26. Adjusting valve clearance
Adjust the valve clearance according to the fol-
lowing procedure.
a As the valve clearance, adjust the clear-
ance between the crosshead and rocker
arm to the following value.
a Valve clearance (when cold)
Intake valve
0.30 ± 0.05
1) Rotate the crankshaft forward to bring
stamped line (a) of the supply gear to the
top and set the No. 1 cylinder to the com-
pression top dead center (T.D.C).
2) While the No. 1 cylinder is at the compres-
sion top dead center, adjust the valve
clearances marked with q in the valve
arrangement drawing.
114E-3 Series
Unit: mm
Exhaust valve
0.56 ± 0.05
3) Insert clearance gauge K between rocker
arm (2) and crosshead (3) and set adjust-
ment screw (4) to a degree that you can
move the clearance gauge lightly.
4) Tighten locknut (5) under this condition.
3
Locknut:
24 ± 4 Nm {2.4 ± 0.4 kgm}
a After tightening the locknut, check the
valve clearance again.
After adjusting all of the valves
q
marked with q, rotate the crankshaft
forward by 1 turn to bring stamped line
(a) of the supply pump drive gear to
the bottom and set the No. 6 cylinder
to the compression top dead center.
5) While the No. 6 cylinder is at the compres-
sion top dead center, adjust the valve
clearances marked with Q in the valve
arrangement drawing.
a Adjust the valve clearance according
to steps 3) and 4) above.
SEN00464-01
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