MAINTENANCE AND SERVICING
Form 169552 / 169554 / 169555
146
Revision A
7.9.2 ROTOR TO SCREEN CLEARANCE
a. Check clearance between trailing edge of rotor
(A) and the screen. It should be .04 - .32 inches
(1 - 8 mm) at all locations when rotating.
NOTE
Rotor may touch screen as long as it
continues to rotate.
b. If necessary, adjust clearance as follows:
1. Loosen nut (B) on motor support (C).
2. Move support in or out until duct is
0.08 - 0.24 in. (2 - 6 mm) from screen near
the center.
3. Re-tighten nut (B).
4. Loosen the two motor mount bolts (D).
5. Move motor / duct assembly (E) to obtain
0.04 - 0.32 in. (1 - 8 mm) gap to screen at
full rotation of the duct.
6. Re-tighten nuts (D) on motor mount.
c. Close screen access door (F), and engage latch
(G).
d. Lower engine compartment hood.
A
D
E
0.04 - 0.32 in.
(1 - 8 mm)
0.08 - 0.24 in.
(2 - 6 mm)
B
C
G
F