User guide
Service and maintenance  19
7. Remove the old air filter element from the filter housing and put the new element into position with the 
ribs in the element running from top to bottom (in the same direction as the louvers in the filter housing 
cover) as shown in Figure 15.
8. See Figure 14. Hook the side of 
the cover opposite the clips C 
into the housing and then press 
the cover onto the housing, 
checking that the clips snap 
into the housing and that the 
cover is located correctly with 
no gaps where air could bypass 
the filter.
9. Reconnect the air filter fan 
connector B.
10. Hook the rear end of the air 
filter housing into position in the 
head by sliding it towards the 
rear of the fixture. Then hold 
the front of the housing in 
position against the front of the 
head while you fasten the two Torx 25 screws A.
11. If you have finished work on the head, reinstall the head covers as described in “Access to the head” on 
page 17 and release the tilt lock before reapplying power.
Figure 14: Head air filter removal
A
C
B
A
C
C
C
Figure 15: Head air filter alignment










