TM 5-2420-231-23-1
0025
Table 1. Alternator Does Not Charge or Alternator Charging Indicator Fault - Continued.
025
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 2. Inspect Alternator,
Alternator Does Not Charge
Alternator Pulley, Drive Belt, Drive
or Alternator Charging
Belt Tensioner, and Alternator
Indicator Fault - Continued
Cables.
Mounting Bracket Bolts OK - Proceed
1. Inspect alternator mounting bolts
to step 2.
(Figure 3, Items 1 and 7) and
mounting bracket bolt (Figure 3,
Mounting Bracket Bolts Loose -
Tighten mounting bracket bolts
Item 3).
(WP 0153).
Proceed to Test Step 8.
2. Inspect alternator mounting
Alternator Mounting Bracket OK -
bracket (Figure 3, Item 2) for
Proceed to step 3.
cracks or damage.
Alternator Mounting Bracket
Damaged - Replace alternator
mounting bracket (WP 0153).
Proceed to Test Step 8.
NOTE
Note routing of drive belt to aid in installation.
3. Remove drive belt (Figure 3,
Drive Belt OK - Proceed to step 4.
Item 4) (WP 0095) from machine
Drive Belt Damaged, Cracked,
and inspect drive belt for the fol-
Stretched, Glazed, or Worn - Proceed
lowing:
to step 8.
a. stretching
b. damage
c. glazing
d. wear
e. more than four cracks per inch
(25.4 mm)
4. Inspect alternator drive pulley nut
Alternator Drive Pulley Nut OK -
Proceed to step 6.
(Figure 3, Item 5).
Alternator Drive Pulley Nut Loose -
Proceed to step 5.
5. Remove alternator drive pulley
Alternator Drive Pulley OK - Proceed
(Figure 3, Item 6) (WP 0153) and
to step 6.
inspect alternator drive pulley and
Alternator Drive Pulley Worn or
alternator drive shaft (Figure 3,
Damaged - Replace alternator drive
Item 9) for wear and damage.
pulley (WP 0153).
Proceed to Test Step 8.
Alternator Drive Shaft Worn or
Damaged - Replace alternator (WP
0153).
Proceed to Test Step 8.
6. Remove alternator fan (Figure 3,
Item 8).
0025-4