Komatsu 80001 User Manual

50 Disassembly and assembly SEN04130-01
PC130-8
37
Disassembly and assembly of
anti-drop valve assembly 1
k Remove the anti-drop valve assembly from
the machine body always before disassem-
bling it. Never disassemble the anti-drop
valve when it is installed to the machine.
Otherwise, oil or parts will spurt out due to
the high remaining pressure.
k Slowly loosen the cover on the spool por-
tion or check valve when they are to be
removed.
k There is a spring inside them. Be careful
that the inside part may jump out.
k Do not stand in a direction where the inside
part may jump out when performing disas-
sembly, otherwise the inside part that will
jump out may hit your body.
k Insert a wooden piece or a thick cloth to fix
the anti-drop valve to the vise when per-
forming the disassembly.
k Wash the parts thoroughly with clean
hydraulic oil when performing assembly.
Replace the O-ring with the new one.
Disassembly
1. Do not stand in a direction where the inside
p
art may jump out with the reaction force of the
spring when removing the bolts (1), (2), and
the check valve (3). Otherwise the inside part
that will jump out may hit your body.
Assembly
1. Wash the parts thoroughly with clean hydraulic
o
ily. Replace the O-ring with the new one.

Komatsu 80001 Specifications

General

Brand	Komatsu
Model	80001
Category	Excavators
Language	English