Figure 3-1. Control box components, removal and installation.

2.75 volts when the switch is closed. If the voltage

the rheostat to 28.0 volts at 4375 rpm, no-load,

drop does not fall between the above limits, replace

after this check.

the coil. If there is no change, check for an open

(14) Safety wire the clamping screw on the

shock mount, if used.

equalizer circuit. If a rise occurs, check for reversed

equalizer connections.

(15) Hipot all terminal studs together to the

resistor housing at 600 volts, 60 cycles for one

(13) Lower the speed to 4375 rpm at no-load.

Move the rheostat through it travel to determine if

second.

it will adjust the voltage from 26 to 30 volts. If this

h. Installation. Refer to figure 3-1 and install the

is not the case, recheck the coil current. g(6). Set

voltage regulator.

Figure 3-1. Control box components, removal and installation.

3-3