Figure 41. Generator, installed on trock.

TM 10-3930-222-20

Figure 41. Generator, installed on trock.

wrench as shown in figure 48 and turn the

(a) Airgap. The desired airgap setting is 0.075 inch.

adjusting nut to obtain the desired setting. Turn

With the battery disconnected, check the

the nut clockwise to decrease the airgap and

setting. Turn the adjusting nut as shown in

counterclockwise to increase the airgap.

figure 51 to obtain the desired setting. Turn the

nut clockwise to decrease the airgap and

(b) Voltage setting. Hook up test equipment (fig.

counterclockwise to increase the airgap.

49) and check voltage setting for reading of 13.8

to 14.8 volts. Turn adjusting screw as shown in

(b) Current setting. The desired current setting is

figure 50 clockwise to increase the voltage

18.5 to 21.5 amperes. Hook up test equipment

setting and counterclockwise to decrease the

(fig. 52) and turn the adjusting screw as shown

voltage setting.

in figure 53 clockwise to increase the ampere

setting and counterclockwise to decrease the

(3) Current regulator.

The current regulator

ampere setting.

requires an airgap check and current setting as

follows: