Komatsu PC200-8M0, Shop Manual, Page: 1099 / 1254

SEN06146-00
PC200, 200LC, 220, 220LC-8M0 50-500
25
500 Hydraulic system
Disassembly and assembly of work equipment PPC valve
a
When installing joint (12) to body (1), apply
LOCTITE as shown below.
1)
When installing the joint, apply 1 drop
(approx. 0.02 g) of LOCTITE (No. 262)
each to 2 places of the female screw (A)
of the body. Before installing the joint,
thoroughly degrease and dry its male
screw and the female screw of the body
with DRYSOL.
2) Drop LOCTITE to the following positions.
2 Female screw (A) of body:
LOCTITE No. 262
3 Joint (12): 39 – 49 Nm {4 – 5 kgm}
a
Apply grease (G2-LI) to the sliding parts of joint
(12) and contact surfaces of disc (13) and pis-
ton (8).
2 Quantity of grease (G2-LI)
The sliding portions of the joint (J portion):
Apply grease (G2-LI) 7 – 10 m
l
to entire cir-
cumference.
The sliding portions of the joint (P portion):
Apply gear oil 0.2 – 0.4 m
l
to the sliding
portions (4 places) between the joint and
pin.
Contact surfaces of disc and piston:
0.3 – 0.8 cc/place
a
When assembling disc (13), adjust it so that
the end play of the lever will be 0.5 – 3 mm at
200 mm from the center of revolution.
a
See Testing and adjusting, "Adjusting play
of work equipment and swing PPC valve".
a
Tighten nut (14) to the following tightening
torque.
3 Nut (14): 69 – 88 Nm {7 – 9 kgm}