Section IV. OPERATION OF COMPONENTS USED IN CONJUNCTION WITH MAJOR END ITEM
will permit reading the torque for either direction of
21. GENERAL
rotation.
b. Couplings.
When testing actuators and
The main purpose of the starter torque tester is
retraction motors, drive couplings (fig. 13) replace the
to test the torque and speed of starters. The tester is
standard jaws supplied with the starter torque tester.
also equipped with suitable accessories and mounting
These couplings are splined to mate with the internal
adapters to be used for testing actuators and retraction
drive splines of the tester and actuator shafts.
motors.
c. Tachometer Reduction Drive Assembly. The
tachometer reduction drive assembly (20, fig. 5) has a
22. ACCESSORIES
gear reduction ratio of 10 to 1 and is used when testing
high speed units or starters with special gearing such as
a. Torquemeters (Low Reading).
For testing
Jack and Heintz JH6P, JH6PS, and JH6PK. The
actuators and retraction motors, replace the high
tachometer reduction drive assembly is connected to the
reading torquemeter used for testing starters with two
flexible drive shaft (18)of the tachometer and to the
low reading torquemeters (1 and 2, fig. 12). The two
shaft of the starter torque tester.
low reading torquemeters, one on each carrying arm,
Figure 12. Starter Torque Tester (Actuator Mounted for Testing)
12
