MAINTENANCE
75
810 Gas/LPG 330160 (5--09)
THERMO SENTRY
The Thermo Sentry senses the temperature of the
air pulled up from the hopper. If there is a fire in
the hopper, the Thermo Sentry stops the vacuum
fan and cuts off the air flow. The Thermo Sentry is
located on the vacuum fan housing.
Reset the Thermo Sentry by pushing in its reset
button.
BRUSHES
MAIN BRUSH
The main brush is cylindrical and spans the width
of the machine, sweeping debris into the hopper.
Check the brush daily for wear or damage.
Remove any string or wire tangled on the main
brush, main brush drive hub, or main brush idler
hub.
Check the main brush pattern daily. The pattern
should be 50 to 65 mm (2 to 2.5 in) wide. Adjust
the main brush pattern by turning the main brush
pressure knob located next to the operator seat.
Rotate the main brush end-for-end every
50 hours of operation for maximum brush life and
best sweeping performance.
Replace the brush when it no longer cleans
effectively.
TO REPLACE MAIN BRUSH
1. Stop the engine and set the machine parking
brake.
FOR SAFETY: Before leaving or
servicing machine; stop on level
surface, set parking brake, turn off
machine and remove key.
2. Raise the main brush.
3. Open the right side main brush access door.
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