Figure 51. Alternator brush replacement.

TM 5-3825-213-20

(7) If the voltage regulator on cables do

(2) Perform a continuity test on the

not conform to the above tests,

regulator cable in the same manner as

replace the voltage regulator or

that prescribed for the rectifier-to-

cables.

alternator cable (par. 101).

b. Removal. Remove the alternator regulator

(3) Disconnect the alternator-to-rectifier

cable and the regulator cable at the

as illustrated in figure 52.

c. Cleaning and Inspection. Clean, inspect,

rectifier.

(4) With a multimeter set on RX 10 scale,

and replace a defective regulator as necessary.

connect one lead to D pin on the

d. Installation. Install the alternator regulator

rectifier-to-regulator side and touch

as illustrated in figure 52.

the other lead to each of the three

e. Alternator Regulator Adjustment. Adjust

larger sockets, A, B, and C, on the

voltage of the alternator regulator as illustrated in figure

alternator-to-rectifier side. If a very

low reading is obtained, reverse the

polarity of the meter and repeat the

103. Rectifier

measurement.

a. On-Unit Testing.

reading, 100 to 250 ohms, should be

(1) Perform the on-unit tests prescribed

for the alternator (par. 101).