Doosan DX700LC Operation And Maintenance Manual page 224

Clean Air-Conditioning Outer Filter
The unit is equipped with an air filtration system which filters out
dirt and dust particles from air being circulated into operator's
cabin. This filter should be cleaned out.
NOTE: In the event that the unit is being operated in a dusty
environment, the cleaning and replacement should
be performed more frequently. If filter is damaged,
replace damaged filter with a new one.
All service and inspection of air-conditioning system
should be performed with the starter switch in the "O"
(OFF) position.
If using compressed air to clean the element, make sure
that proper eye protection is worn.
NOTE: All right and left call outs are based on the operator
being seated in the operator's seat facing the front.
1. Open the door in the left front of the machine, then remove
the cover (1, Figure 53) by loosening the four wing bolts.
2. Open the cover by turning the knob (1, Figure 54) in the
rear of the cabin.
3. Remove filter (Figure 55) and inspect for any damage.
4. Use compressed air to clean filter. If filter is still dirty, then
change to new one.
5. Reassemble in reverse order.
Inspection, Maintenance and Adjustment
4-36
WARNING
WARNING
Figure 53
1
Figure 54
Figure 55
Cover
FG016162
FG000441
FG000342
OP001123