Figure 24. Starter torque test-starter mounting bracket mounted for clockwise
rotation starter (hook type torque arm drive.)
(9) Refer to c and d b e l o w f o r e x a m p l e s
of adjusting the varidrive assembly.
d. Example I. The preset speed (rpm) of the
low switch (18) to the "LO" position
p u l l e y (driver) (8, fig. 20) is 2,000, the di-
a n d the tachometer indicator direct
ameter of the driven pulley of the generator or
drive calibrating potentiometer switch
alternator (9, fig. 20) is 5 inches, and the di-
( 1 9 ) to the "DIRECT DRIVE" posi-
ameter of the pulley (driver) (8, fig. 20) is 4
tion.
inches.
(4) S t a r t the varidrive assembly as pre-
(1) Determine the speed (rpm) of the gen-
erator or alternator (9, fig. 20) driven
pulley using the formula in b(5)
handle of the speed control (32) clock-
above:
w i s e until the tachometer indicator
meter (3) reads 2,000 rpm.
brating potentiometer (58) to the
(2) Install the pulley (driver) (8, fig. 20)
" M A X " position and the tachometer
i n d i c a t o r direct-drive calibrating po-
47