CENTRIFUGAL FAN HOUSING REPLACEMENT (Sheet 2 of 3)
Using 1/2 inch socket, remove ten screws (C)
securing covers (D) to shroud (E).
Using two 9/16 inch wrenches, remove two
screws, washers, and self-locking nuts (F) that
hold housing (G) and mount (H) together.
Throw self-locking nuts away.
Using 9/16 inch socket, remove four screws (J)
Remove housing (G) and mount (H) from
Make sure no foreign matter is
present in fan housing.
Position mount (A) and housing (B) onto
Using two 9/16 inch wrenches, install two
screws, washers, and new self-locking nuts (C)
securing mount (A) and housing (B) together.
Using 9/16 inch socket, install four screws
(D) securing mount (A) and housing (B) to
Using feeler gage, check clearance between
tip of each fan blade and mount (A) and
housing (B). If clearance is less than 0.062
Go on to Sheet 3