Komatsu PC88MR-10 Shop Manual page 1160

50 Disassembly and assembly
Undercarriage and frame
a When inserting the floating seal assembly to the
housing, use the following installer.
Tool L4
a After inserting, check that the seal tilt is Max. 1
mm. Seal protrusion (a) are as follows.
(a): 6 to 10 mm
a The metallic faces of the floating seal which are
in contact with each other must be free from dirt.
a Thoroughly clean the part contacting the
insertion oil. After cleaning, amount of dust
remaining in the related area must be Max. 25
mg per roller assembly set.
a Direct plug (2) toward the outside of the machine
when assembling.
50-132
1. Press-fit bushings (11) to roller (5) by using tool
L3.
a Press-fit bushing (10) in the same way.
2. Press-fit floating seal (9a) to shaft (6) by using
tool L4.
3. Press-fit floating seal (9a) to roller (5) by using
tool L4.
a Similarly press-fit floating seal (4b).
4. Install shaft and collar assembly (8) to roller (5).
5. Invert roller (5) and shaft assembly (6).
6. Install floating seal (4a) to collar (3) by using tool
L4.
PC88MR-10