Komatsu PC210-8, Shop Manual

Page: 1108 / 1200

UEN00664-00 50 Disassembly and assembly
2
PC210, 230,240-8
Work equipment
Removal and installation of the
work equipment assembly
Special tools
Removal
k
Safely lower the work equipment to the
ground by extending the arm and the
bucket completely. Set the lock lever in
the lock position,
k
Release the residual pressure in the
hydraulic circuit. Refer to the Release of
Remaining Pressure in Hydraulic Circuit
section in the Testing and adjusting chap-
ter of this manual.
1. Disconnect grease hose (1).
2. Sling the boom cylinder Assembly (2).
q
Demolition spec.
a
Articles 3. & 4. for the demolition spec.
3. Remove the lock bolt and nut (3). [*1]
4. Remove plate (4), then remove head pin (5).
[*2]
a
Check the number as well as locations of
the shims used.
q
Except demolition spec.
a
Articles 5. & 6. for except the demolition spec.
5. Remove lock bolt (3).
6. Remove plate (4) and remove the head pin. [*3]
a
Check the number as well as locations of
the shims used.
7. Start the engine and then retract the piston rod.
a
Bind the piston rod with wire etc. and put it
down the blocking tools so that the piston
rod does not slip out or allot a support so
that the cylinder doesn't fall down to the
bottom side. If a support is allotted, remove
the grease fitting at the bottom side.
a
Remove the boom cylinder on the other
side in the same manner.
a
If bumping of the lifting hook against the
work equipment lamp is anticipated in lift-
ing the work equipment, the lamp must be
removed.
8. Disconnect 2 pcs. of bucket cylinder hose (6) &
2 pcs. of arm cylinder hose (7).
a
Apply the oil restraining plug and then fix
the hoses to the valve side by use of
ropes.
9. Disconnect intermediate connector for work-
ing lamp A13 (8).
Sy
m
bo
l
Part number Part name
Essential
ity
Qu
antity
N/R Illustration
V
796-900-1200 Remover
t
1
• 796-900-1210 • Sleeve 1
• 792-900-1520 • Plate 1
• 799-900-1230 • Screw 1
• 796-900-1240 • Adapter 1
• 01643-33080 • Washer 1
• 01803-13034 • Nut 1
790-101-4000
Puller
(490kN {50 ton} long)
t
1
790-101-1102 Pump (294 kN {30 ton})
t
1