Air Cleaner - Komatsu 830E Shop Manual

4. Remove bearing from shaft.
5. Clean all parts and inspect shaft and housing.
Remove any scores or burrs from shaft. If either
shaft or housing are damaged beyond use, the
complete bearing housing assembly must be re-
placed. The shaft and housing are not serviced
separately.
6. Remove the following from the new bearings:
a. Remove snap ring from outer race and discard.
b. Remove felt from side of bearings that will be
pushed into housing.
7. Press bearing into housing, slide shaft through this
bearing until 4 in. (102 mm) extends from drive
motor end of housing.
8. Fill cavity between bearings with grease.
9. Press remaining bearing into housing, check that
4 in. (102 mm) of shaft extends from drive motor
end of housing.
10. Tighten bearing locking collar setscrews to 65 in.
lbs. (7.35 N-m) torque.
Assembly
1. Position mounting half of blower housing against
bearing housing. Install two flat head capscrews,
lockwashers and nuts.
2. Install blower housing, bearing housing assembly
to mount structure engaging shaft into flex cou-
pling.
3. Install remaining two flathead capscrews, retaining
bars, lockwashers and nuts. Align retaining bars
with tapped holes in mount structures. Install re-
taining bar capscrews. Tighten nuts and cap-
screws to standard torque.
4. Remove nuts from first two taper head capscrews.
Repeat Step 3. Tighten flex coupling setscrews to
65 in.lbs. (7.35 N-m) torque.
5. Slide blower wheel onto key and shaft. Tighten
both setscrews to 65 in.lbs. (7.35 N-m) torque.
6. Install inlet half of blower housing and tighten nuts
to standard torque.
7. Rotate shaft by hand to insure wheel rotates freely.
8. Install inlet duct hose and clamp.
9. Install outlet hose and clamp.
M4-8 Alternator and Wheelmotor Cooling Air Filter System

AIR CLEANER

Assembly
The air cleaner separates dirt from air entering the
cooling blower at the rear of the main alternator.
If excess dirt builds up in tubes of air cleaner and
cannot be cleaned by blowing with compressed air, the
unit can be removed from front of the duct and washed.
Removal
1. Remove scavenge tubing from each end of air
cleaner.
2. Support air cleaner so it will not drop when mount-
ing hardware is removed.
3. Remove mounting capscrews, nuts, and lock-
washers.
4. Attach lifting device and remove air cleaner from
truck.
Washing Air Cleaner
1. Submerge filter assembly in a solution of Donald-
son D-1000 and warm water. Mix solution accord-
ing to instructions on Donaldson D-1000
package.
2. Soak for 30 minutes, remove from solution, rinse
with fresh water and blow dry.
Assembly
1. Lift filter assembly and align with air inlet duct.
2. Install all mounting capscrews, lockwashers and
nuts. Tighten to standard torque.
3. Install scavenge tubing and clamps.
M04002 12/89