Disassembly And Assembly Of Control Valve Assembly - Komatsu PC210-8 Shop Manual

50 Disassembly and assembly
Disassembly and assembly of
control valve assembly
a This section deals with only precautions to be
followed when reassembling the control valve
assembly.
Special tools
Part number
796-946-1310
(For 723-46-40100)
796-946-1610
(For 723-46-41100)
796-946-1810
2
(For 723-46-43100 and 723-46-43400)
796-946-1910
(For 723-46-46101 and 723-46-46300)
796-946-2210
(For 723-46-45100 and 723-46-45700)
796-946-1320
(For 723-46-40100)
796-946-1620
(For 723-46-41100)
796-946-1820
(For 723-46-43100 and 723-46-43400)
3
796-946-1920
T
(For 723-46-46101 and 723-46-46300)
796-946-2220
(For 723-46-45100)
796-946-1420
(For 723-46-42700)
796-946-1330
(For 723-46-40100)
796-946-1630
(For 723-46-41100)
796-946-1830
(For 723-46-43100 and 723-46-43400)
4
796-946-1930
(For 723-46-46101 and 723-46-46300)
796-946-2230
(For 723-46-45100)
796-946-1430
(For 723-46-42700)
PC210, 230, 240-8
Part name
Guide ø21.8
t 1
Guide ø21.4
t 1
Guide ø21.2
t 1
Guide ø21.0
t 1
Guide ø21.6
t 1
Guide ø21.8
t 1
Guide ø21.4
t 1
Guide ø21.2
t 1
Guide ø21.0
t 1
Guide ø21.6
t 1
Guide ø21.6
t 1
Sleeve
t 1
Sleeve
t 1
Sleeve
t 1
Sleeve
t 1
Sleeve
t 1
Sleeve
t 1
Procedures for replacing pressure compensa-
tion valve seal
a Since there are many types of pressure com-
pensation valve, mark the positions when
removing to correspond to the original.
1. Remove piston (2), plug (3) and spring (4) from
pressure compensation valve (1).
2. Remove piston (2) from seal (5) and (6).
a There are many types of piston.
3. Set tool T2 to piston (2) and push it in slowly by
hand so that seal (5) may spread out evenly.
a The seal may be also fitted by pushing it
down to the flat surface of the tool and
then pushing it in with the tool fitted to the
piston.
UEN00663-02
13