Tennant 6200E, Руководство по обслуживанию

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ELECTRICAL
4-75
6200E 330415 (6--99)
MAIN SWEEPING BRUSH
The main sweeping brush motor will only operate
when the hopper is down, main brush lowered,
and the vehicle is in motion.
Electrical components needed to operate the
main brush motor circuit:
CB--1, Key switch, Stop switch, M1 main
contactor, M1a auxiliary contact, 1242 Curtis
motor controller, Hopper down switch, Main brush
switch, M2 main brush contactor, Main brush
motor.
1. Control circuit. (see fig. 8)
For the main sweeping brush motor to operate,
the machine must be started with the M1
contactor energized. The hopper should be
lowered completely allowing the hopper down
switch to close. Engaging the main brush lever
closes the main brush switch and pr36
volts to the (+) terminal of the main brush
contactor coil. Finally, when the machine is
commanded to move from the propel foot control,
the controller completes the circuit with --36 volts
from pin 8 of the motor controller to the (--) coil
terminal of the main brush contactor M2.
2. Power circuit. (see fig. 9)
When the M2 contactor is energized, current
flows through the M2 contacts, CB--7, and finally
the main brush motor.