SEN01058-00 50 Disassembly and assembly
2 PC800, 850-8
Work equipment 1
Removal and installation of
bucket cylinder assembly 1
Back hoe
Removal
k Retract the arm and bucket cylinder piston
rods, lower the work equipment completely
to the ground, then set the lock lever to the
LOCK position.
1. Set block [1] between bucket cylinder and arm,
and block [2] between link and arm.
2. Remove 3 pin lock bolts (1) and cover (2), then
using forcing screws, pull out. [*1]
a Check the number and thickness of the
shims, and keep in a safe place.
3. Start engine, and retract piston rod, then tie pis-
ton rod with wire to prevent it from coming out.
k Stop the engine and release the remain-
ing pressure in the circuit. For details, see
Testing and adjusting, “Releasing remain-
ing pressure from hydraulic circuit”.
4. Disconnect 2 hoses (3).
a Fit plugs in the hoses to prevent dust or
dirt from entering.
5. Sling bucket cylinder assembly (5), then
remove plate (6) and pull out pin (7). [*2]
a There are shims installed, so check the
number, thickness, and position, and keep
in a safe place.
6. Remove bucket cylinder assembly (5).
4 Bucket cylinder assembly:
520 kg (PC800, PC800LC)
940 kg (PC800SE, PC850SE)
560 kg (PC850)
Installation
q Carry out installation in the reverse order to
removal.
[*1]
2 Inside surface of bushing when assembling
pin: Anti-friction compound (LM-P)
2 Grease after assembling pin: Grease (LM-G)
k When aligning the position of the pin hole,
never insert your fingers in the hole.
a Adjust with shims (4) so that the clearance (a)
between link (7) and cover (2) is less than 1
mm.
q Shim thickness: 0.8 mm(STD, LC)
1.0 mm(SE)
CEP00077
5
76
To Next Page
Loading...
Need help?
General
