146 S650 Operation & Maintenance Manual
HEATING, VENTILATION AND AIR CONDITIONING
(HVAC)
This machine may be equipped with a Heating System or
HVAC.
Cleaning And Maintenance
The heating and HVAC systems require regular
inspection and maintenance. (See SERVICE
SCHEDULE on Page 131.)
Filters
Fresh Air Filters
Figure 201
The fresh air filters are located behind the side windows
outside the operator cab. (Right side shown) Remove the
retaining screw (Item 1) and filter cover (Item 2)
[Figure 201].
Shake the filter (Item 3) [Figure 201] or use low pressure
air to remove dirt. This can be done several times before
replacement is required. Install the filter, filter cover and
retaining screw.
Recirculation Filter (Earlier Models)
Figure 202
The recirculation filter is located behind the operator’s
seat inside the operator cab. Flip the clamps (Item 1)
holding the filter up and remove the filter (Item 2)
[Figure 202].
Shake the filter or use a vacuum to clean. This can be
done several times before replacement is required.
Install the filter into the opening and flip the clamps down
to hold the filter in place.
Recirculation Filter (Later Models)
Figure 203
The recirculation filter is located behind the operator’s
seat inside the operator cab. The filter cover is held in
place with three clips. Pull the cover at each end (Item 1)
[Figure 203] to remove.
Rinse the filter elements with water or use a vacuum to
clean. Do not use solvents.
Line up the clips on the filter cover with the slots provided
and push the cover into place.
P-90492A
3
P-90489A
1
2
P-90490A
2
1
P100755
1
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