Komatsu PC200-8M0, Shop Manual

Page: 1045 / 1254

SEN06144-00
PC200, 200LC, 220, 220LC-8M0 50-300
29
300 Power train
Disassembly and assembly of swing motor and swing ma-
4. Shaft and case assembly
a
1) and 2): PC220-8M0, PC220LC-8M0
only
1) Install O-ring (42) to spacer (41).
2) Using push tool [16], press-fit spacer (41)
to shaft (26).
a
Be careful not to bite O-ring (42) to
the spacer.
3) Set case assembly (32) into shaft (26).
2 Oil seal lip section: Grease (G2-LI)
a
Put case assembly not to interfere the
oil seal.
4) Using tool F1 , push tool [10], and hammer
[11], strike inner race section of bearing
(27) not to fall down the shaft.
a
Let lifting tool [12] be slacked.
5) Set into the press.
6) Using tool F1 , push tools [13], [14], press
fit inner race section of bearing (27).
a
Put in push tool [14] for the cases that
the case assembly is inclined a lot.
a
If case assembly (32) is inclined,
strike the flange section lightly and
correct it.
a
Just before oil seal (29) goes into
shaft (B) part, case assembly (32) is
leveled so that case assembly (32)
may be located at the center of shaft
(26), and be careful not to damage
the oil seal lip part.
5. Bearing
Using tool F2 and push tool [15], press fit bear-
ing (31).
a
When press-fitting the bearing, press both
inner and outer races of the bearing at the
same time. Avoid pressing the inner race
only.
q Input pin press (reference):
9.4 – 35.5 kN {960 – 3,620 kg}
a
After the bearing is press-fitted, check that
the case will turn freely.