4-7. INSTALLATION INSTRUCTIONS (cont)
(a) The tester is prewired so that when the FORWARD-
OFF-REVERSE switch (10) is in the FORWARD position, the
TACHOMETER (11) will move clockwise, and the shouldered shaft (12)
will rotate clockwise as viewed from the front of the tester.
If the rotation
of the TACHOMETER and shouldered
shaft is incorrect, the direction may be corrected by switching any two of
the three cable wires in the main power supply.