(8) Rotate the ac ammeter phase selector
(10) T u r n the speed control handle (24)
switch (11) through the "PH1,"
p a r t i a l l y counterclockwise until the
v a r i d r i v e assembly speed is reduced
"PH2,'' and "PH3'' positions. The am-
p e r e reading on the ac ammeter (5)
-speed. Place the switches and con-
should not differ by more than 10 am-
trols in table 7 above, in positions in-
peres for all three positions on the ac
of the table.
dicated in column
S t o p the varidrive assembly by de-
pressing the stop button (25-C) on the
(9) Rotate the ac voltmeter phase selector
drive control (25).
switch (14) through the "T1-T2,"
"T1-T3," and "T2-T3" positions. The
(11) R e m o v e the cable harnesses and test
leads (fig. 48) and continue with test
in e below.
( 6 ) should not differ by more than
plus or minus 1 volt for all three po-
e. Overspeed Test Procedures.
from the low speed driving head (5,
N o t e . If test results are not obtained as
fig. 7) and mount
it on the high
driving head (4, fig. 7). Recalibration
above, check the indicator knob on all rotary
switches under the meters (fig. 47) to be sure
the knob is secure on the shaft of the switch
a n d pointing to the correct position on the
(alternator) is direct-driven, however,
s w i t c h dial. If this condition exists, place
t h e reading will be taken from the
the knob and switch shaft in the correct
p o s i t i o n on the switch dial and tighten the
set screw in the knob securely.
Figure 50. Leece-Neville Company no. A0015504AA ordnance no. 10922191 100-ampere