Komatsu PC200-8M0 Shop Manual page 397

101 Testing and adjusting, Part 1
Testing and adjusting oil pressure in pump LS control cir-
Adjusting
Adjusting LS valve
a If the LS differential pressure is abnormal,
adjust the LS valve according to the following
procedure.
q (8): Front pump LS valve
(9): Rear pump LS valve
q
1. While fixing adjustment screw (10), loosen
locknut (11).
2. Turn adjustment screw (10) to adjust the differ-
ential pressure.
a If the adjustment screw is
Turned to the right, the differential
q
pressure is increased.
q Turned to the left, the differential
pressure is decreased.
a Quantity of adjustment (LS differential
pressure) per turn of adjustment screw:
Approx. 1.1 MPa {Approx. 10.8 kg/cm
3. While fixing adjustment screw (10), tighten
locknut (11).
3
Locknut: 49 to 68.6 Nm {5 to 7 kgm}
4. After finishing adjustment, check again that the
LS differential pressure is normal according to
the above described measurement procedure.
PC200, 200LC, 220, 220LC-8M0
2
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SEN06127-00
45
30-101