Disassembly And Assembly Of Idler Cushion Assembly - Komatsu PC88MR-10 Shop Manual

50 Disassembly and assembly
Undercarriage and frame

Disassembly and assembly of idler cushion assembly

a Special tools
Sym-
Part No.
bol
791-600-2001
Compressor (A)
or
Compressor (B)
791-685-8006
791-635-3160 Extension
2
790-201-2770
Cylinder
790-101-1600
(686 kN {70 ton})
790-101-1102 Pump
L
790-201-1500 Push tool kit
790-201-1590
3
790-201-1610
790-101-5021
01010-50816
Disassembly
(PC138-DTBP-530-K-00-A)
1. Remove lock plate (1) and remove seat (2) and
valve (3).
a Do not remove grease fitting (17) from valve
(3).
2. Remove yoke and piston assembly (5) from
recoil spring
assembly (4).
3. Disassembly of recoil spring assembly (4)
1) Set recoil spring assembly (4) to tool L2.
50-128
Part name
t 1
t 1
Spacer
t 1
t 1
t 1
q 1
Plate (outer
1
diameter: 74 mm)
Plate (outer
1
diameter: 79 mm)
Grip
1
Bolt 1
(PC138-DTBP-926-K-00-A)
Since the load at installed length of the
spring is large and dangerous, set the
recoil spring assembly securely to the
tool.
Load at installed length of spring:
84,300 N {8,600 kg}
PC88MR-10