Disassembly And Assembly Of Travel Ppc Valve Assembly - Komatsu ecot3 PC300LC-8 Shop Manual

SEN02639-02
Disassembly and assembly of
travel PPC valve assembly
Special tool
Part No.
4 796T-416-1010 Push tool
M 5 796T-416-1030 Push tool
6 796T-416-1020 Push tool
Disassembly
1. Remove screw (20) and damper assembly
(16).
2. Remove mounting bolt (21) to remove case
(12), shaft (14) and lever (15) assembly.
3. Remove pin (3).
4. Remove lever (15), bushing (10), (11) and
shaft (14) from the case.
16
Part name
t 1 N Q
t 1 N Q
t 1 N Q
1
5. Remove mounting bolt (10) to remove plate
(22).
a Check the thickness and the mounting
position of washer (18).
a Remove pin (23) from body (1).
6. Remove seal (9) and collar (8).
7. Remove piston (7) to remove retainer (6),
springs (5) and (4) and shim (3).
a Store shim (3) after checking the thickness
and the number of shims at each mount-
ing position.
8. Remove valve (2) from body (1).
50 Disassembly and assembly
PC300, 350-8