Komatsu 830E-AC Shop Manual page 264

9. Remove outer alternator bracket half (1, Figure
10-23) by removing four lock nuts (2).
10. Remove the alternator from the inner bracket
half.
FIGURE 10-23. MOUNTING BRACKET
1. Alternator Bracket
(Top Half)
For additional information on disassembling the alter-
nator, see the Alternator Disassembly procedure in
this chapter.
Installation
The alternator weighs approximately 32 kg (70
lbs). To prevent personal injury, it is recom-
mended that a sling and overhead lifting device
be used when removing the alternator.
1. Securely attach a sling around the alternator
and hook the sling to an overhead lifting device.
2. Place the alternator on the inner bracket half.
3. Install outer alternate bracket half (1, Figure 10-
23). Install four lock nuts (2) and tighten to stan-
dard torque.
D10-34
2. Lock Nut
Battery Charging Alternator
4. Use a ¾ inch square drive breaker bar to
release the tension on automatic belt tensioner
(1, Figure 10-22) and install belt (2).
5. Install cover (2, Figure 10-21) using eight lock
nuts (1).
6. Install ground strap (1, Figure 10-19) to the
alternator. Tighten ground cable cap screw (2,
Figure 10-20) to 15 N·m (11 ft lbs). If the ground
strap cable was removed from the frame, reat-
tach it.
7. Install battery cable (B+) to the terminal on
alternator (2, Figure 10-18). Tighten the nut to
32 N·m (24 ft lbs).
8. Connect the battery cable to the battery.
a. If the truck is equipped with a battery equal-
izer, close the battery disconnect switch.
b. If the truck is not equipped with a battery
equalizer, install the negative cable to the
negative battery post. Then, install the posi-
tive cable to the positive battery post.
Special Tools and Lubricants
Table 10-9: REQUIRED LUBRICANTS AND
SEALANTS
Komatsu Description
Part #
XA3401 Grease
— Liquid
Threadlockers
— Elastoplastic
Silicone Resin
— Epoxy
Adhesive
Use
Lubricate spiral rings
Thread lock screws
Insulate electrical
connections
Install new stator
wedges
D10003 07/06