Komatsu Galeo PC138US-8 Shop Manual page 831

50 Disassembly and assembly
Assembly
1. Bearing outer race
Use push tool F3 to press outer races (37) and
(38) to case (36).
2. Shaft assembly
1) Install O-ring to inside collar (33) and
install to shaft (34).
2) Use push tool F4 to press bearing (32)
with the press.
3) Set case (39) to shaft assembly (31).
4) Use push tool F5 to press bearing (29)
with the press to the position where the 2-
piece collar can be entered.
a Press-fit force: 11,760 N {1,200kg}
a Press the bearing gradually by rotat-
ing the case.
PC138US, USLC-8
5) Install 2-piece collar (28).
6) Screw in bolt (12 mm, P=1.75) to the
case. Using push-pull scale [5] to measure
the tangential force in the direction of rota-
tion.
a Tangential force: Max. 176.4 N {18kg}
a Tangential force refers to a maximum
value at the start of rotation.
3. Oil seal
Using tool F6 to press oil seal (35).
a Replace the oil seal with a new one.
2
Circumference of oil seal: LG-6
a Be careful not to allow LG-6 to attach to
the lip and shaft.
2
Oil seal lip portion: Grease (G2-LI)
4. Retainer
Install retainer (27).
SEN02711-00
9