Removal And Installation Of Center Swivel Joint Assembly - Komatsu PC200-8M0 Shop Manual

SEN06146-00
Removal and installation of center
swivel joint assembly
Removal
k
Lower the work equipment to the ground
completely, after the engine is stopped,
loosen the hydraulic tank cap gradually to
reduce the pressure inside, and set the lock
lever in the lock position.
k
Disconnect the cable from the negative (–)
terminal of the battery.
a
Attach an identification tag to each piping to
avoid a mistake in the position of installation
later.
°
. (For hydraulic tank oil drain)
1. Swing to right 45
a For the way not to drain the hydraulic tank
oil by using oil stopper, see "Removal and
installation of hydraulic pump assembly".
2. Drain hydraulic tank oil.
6
Hydraulic tank:
3. Disconnect 6 center swivel joint horses (1)
through (6) from the travel motor.
(1): Center swivel joint (T port) –
q
q (2): Center swivel joint (T port) –
(3): Center swivel joint (B port) –
q
q (4): Center swivel joint (D port) –
q (5): Center swivel joint (A port) –
q (6): Center swivel joint (C port) –
2
50-500
237 l (PC200/200LC-8M0)
244 l (PC220/220LC-8M0)
L.H. travel motor (T port)
R.H. travel motor (T port)
L.H travel motor (PA port)
R.H travel motor (PB port)
L.H travel motor (PB port)
R.H travel motor (PA port)

Removal and installation of center swivel joint assembly

4. Disconnect 8 hoses (7) through (14).
q (7): Center swivel joint (E port) –
1
(8): Center swivel joint (E port) –
q
q (9): Center swivel joint (D port) –
q (10): Center swivel joint (E port) –
q (11): Center swivel joint (B port) –
q (12): Center swivel joint (D port) –
(13): Center swivel joint (A port) –
q
q (14): Center swivel joint (C port) –
5. Pull out pin (15) on the center swivel joint side,
and remove the jam plate from center swivel
joint.
500 Hydraulic system
L.H travel motor (P port)
R.H travel motor (P port)
Swing motor (T port)
Solenoid valve
L.H. travel control valve (A2 port)
R.H. travel control valve (B5 port)
L.H. travel control valve (B2 port)
R.H. travel control valve (A5 port)
PC200, 200LC, 220, 220LC-8M0
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