(a) Be sure the battery on-off switch
circuit instrument panel (35, fig.
(22) and the ignition switch (IGN
(e) Connect the lead from the positive
"ON" position. Place the 40-ohm
30-ampere
pile flutter binding posts, (d) above,
maximum
rheo-reg
switch (21) in the "REG" position.
to the No. G+ binding post (10-C,
(b) T u r n the speed control handle
fig. 15) and the lead
from the
nega-
(24) slowly clockwise until 1,000
tive pile flutter binding post, ( d )
rpm are indicated on the tachom-
above, to the No. F-B binding post
eter indicator meter (3).
(c) Turn the knurled adjusting knob of
(f) Detect the action on the carbon
the 5-ohm adjustable resistor (fig.
56) (access through top cover of
nator) regulator by listening with
the headset. The sound should be a
regulator) (fig. 57) fully counter-
distinct hum.
clockwise (full increase) and ob-
(g) Adjust the ampere fixed load by
placing all fixed load switches (17)
that it is in the safe range below
in the "OFF" position and the vari-
32 volts.
(d) Connect
two test leads 38425 (fig.
able load 0-25 0-12.5 ampere rheo-
stat (19) in the full counterclock-
74) to the positive and negative
wise position; then place the 50-25
binding posts (35-B, fig. 16) and
fixed load switch (17-B) in the
plug the lead of the electrical head-
"ON" position. Increase the rpm
Figure 57. Generator
(alternator) generator
regulator - external
voltage adjustments.
117