Komatsu PC200-8M0 Shop Manual page 1071

400 Undercarriage and frame
Removal and installation of revolving frame assembly
7. From center swivel joint assembly, disconnect
6 hoses (8) – (13).
q (8): Center swivel joint (D port) –
q (9): Center swivel joint (E port) –
(10): Center swivel joint (B port) –
q
L.H. travel control valve (A2 port)
q (11): Center swivel joint (D port) –
R.H. travel control valve (B5 port)
(12): Center swivel joint (A port) –
q
L.H. travel control valve (B2 port)
q (13): Center swivel joint (C port) –
R.H. travel control valve (A5 port)
8. Pull out pin (14) on the center swivel joint, and
disconnect jam plate (15) from the center
swivel joint.
9. Remove 32 mounting bolts, and remove
revolving frame assembly (16) off slinging it up.
a Using levers and blocks, hold the balance
of revolving frame assembly front and
rear, and left and right.
k
When removing the revolving frame
assembly, take care so that it does not
hit the center swivel joint assembly.
4
Revolving frame assembly:
5,100 kg (PC200/200LC-8M0)
5,500 kg (PC220/220LC-8M0)
PC200, 200LC, 220, 220LC-8M0
Swing motor (T port)
solenoid valve
[*1]
Installation
q Installation is done in the reverse order of
removal.
[*1]
2
Swivel circle mating surface:
2
Thread of revolving frame mounting bolts:
Adhesive compound (LT-2)
In case of torque tightening:
q
3
Mounting bolts:
716 – 814 Nm {73 – 83 kgm}
In case of angle tightening:
q
3
Mounting bolts:
1) Initial torque:
294.2 ± 29.4 Nm {30 ± 3 kgm}
2) Then tighten the bolts turning by 60 ± 6°.
Refilling with oil (Hydraulic tank)
q
Refill hydraulic oil through the oil filler port to
the specified level. Let the oil circulate in the
hydraulic system by starting the engine. Then
check the oil level again.
q Air bleeding
Bleed air from the travel motor referencing the
"Bleeding air from each part" section in the
Testing and adjusting chapter of this manual.
SEN06145-00
Gasket sealant (LG-1)
19
50-400