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Komatsu PC58UU-3 - Assembly; Installation of Idler Assembly

Komatsu PC58UU-3
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DISASSEMBLY AND ASSEMBLY INSTALLATION OF IDLER ASSEMBLY
30-52
PC58UU-3
2
12
4. After assembling the recoil spring to cylinder
(7), confirm that the parallelism of surface
a
of cylinder (7) and the surface
b
of bracket (5)
is 0.5 mm or less.
5. Install valve (1).
★
Tighten the valve, then turn it back
approximately 2 turns in order to drain
grease out of grease drain hole
c
. Pour
approximately 120 cc of G2-L1 grease into
the cylinder. Insert piston rod (2) into the
cylinder. Insert the piston rod until the
grease comes out of
c
(so that no air
remains in the cylinder). When the grease
comes out, tighten valve (1).
★
After tightening the valve, confirm that
the grease fitting faces the outer side of
the machine body.
INSTALLATION OF IDLER
ASSEMBLY
1. Press fit two bushings (10) onto idler (9) using
tool
L1
.
★
Clean the bushings thoroughly so that no
contaminants, chips or burrs remain.
2. Install two floating seals (8) to idler (9) using
tool
L2
.
★
Clean the O-ring and the contacting sur-
face of the O-ring, and let them dry after
degreasing thoroughly.
★
Apply engine oil (EO30-CD) to the sliding
surface of the floating seal, making sure
that there are no contaminants.

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