Komatsu 830E-AC Shop Manual page 208

Assembly
Lubricate all bearings, wicks and oil reservoirs with
SAE No. 20 oil during assembly.
Bearing Replacement:
1. If any of the bronze bearings are to be replaced,
dip each bearing in SAE No. 20 oil before
pressing into place.
2. Install wick, soaked in oil, prior to installing
bearings.
3. Do not attempt to drill or ream sintered bear-
ings. These bearings are supplied to size. If
drilled or reamed, the I.D. will be too large and
the bearing pores will seal over.
4. Do not cross-drill bearings. Because the bear-
ing is so highly porous, oil from the wick touch-
ing the outside bearing surface will bleed
through and provide adequate lubrication.
5. The middle bearing is a support bearing used to
prevent armature deflection during cranking.
The clearance between this bearing and the
armature shaft is large compared to the end
frame bearings.
Motor Assembly:
1. Install the end frame (with brushes) onto the
field frame as follows:
a. Insert the armature (45, Figure 2-6) into the
field frame (35). Pull the armature out of the
field frame just far enough to permit the
brushes to be placed over the commutator.
b. Place the end frame (1) on the armature
shaft. Slide end frame and armature into
place against the field frame.
c. Insert screws (34) and washers (33) and
tighten securely.
2. Assemble lever (63) into lever housing (78) If
removed.
3. Place washer (79) on armature shaft and install
new O-ring (80). Position drive assembly (71) in
lever (63) in lever housing. Apply a light coat of
lubricant (Delco Remy Part No. 1960954) on
washer (75) and install over armature shaft.
Align lever housing with field frame and slide
assembly over armature shaft. Secure with
screws (76) and washers (77).
4. Assemble and install
through lever housing and attach to field frame.
Install nut (64) but do not tighten at this time.
Install brush inspection plugs (52).
D2-18
solenoid assembly
24 VDC Electric Supply System
FIGURE 2-10. PINION CLEARANCE CHECK
CIRCUIT
5. Using a new gasket (72), install drive housing
(69) and secure with screws (70).
6. Assemble field coil connector (42) to solenoid.
7. Adjust pinion clearance per instructions on the
following page.
8. After pinion clearance has been adjusted, install
gasket (74) and plug (73).
D02034