Komatsu PC200-8M0 Shop Manual page 1108

SEN06146-00
3) Install screw (3) to lock piston assembly
(4) and piston rod assembly (2).
a After installing screw (3), caulk the
screw at four peripheral places (a).
2
Screw (3) thread portion:
3
Screw (3):
58.9 – 73.6 Nm {6 – 7.5 kgm}
Connection of cylinder assembly and the piston
rod assembly
1. Install piston rod assembly (2) to tool U1.
34
50-500
Adhesive (Loctite #262)
Disassembly and assembly of work equipment cylinder
2. Install the cylinder assembly to piston rod
assembly (2).
a Align axial center of the cylinder tube, then
insert.
a Check that the ring is not broken and has
not come out, then push in fully.
3. Tighten the mounting bolts for cylinder head
assembly (1).
3
Cylinder head assembly (1) mounting
bolt:
Boom cylinder: 270 ± 39 Nm {27.5 ±
4.0 kgm}
Arm cylinder: 373 ± 54 Nm {38.0 ± 5.5
kgm}
Bucket cylinder: 270 ± 39 Nm {27.5 ±
4.0 kgm}
4. Install piping.
3
Piping fixing band mounting bolt:
Boom cylinder: 27 ± 7 Nm {2.8 ± 0.7
kgm}
Arm and bucket cylinder: 89 ± 34 Nm
{9.0 ± 3.5 kgm}
PC200, 200LC, 220, 220LC-8M0
500 Hydraulic system