Preventive Maintenance Checks and Services (PMCS) - Continued.
ITEM TO BE
Check Fan Hub
Bearing for End
Every 1,000 Play
Never perform fan hub bearing end play
check with the engine running. Failure to fol-
low this warning may cause death or injury to
b. Fan should spin freely. Grasp fan blade and
alternately push and pull fan to check for end play.
Check Fan Hub Bearing End Play.
a. Start engine and rotate winch drum to align drain
plug (Figure 11, Item 3) and access hole in base.
b. Insert a length of 1 inch (25.4 mm) I.D. pipe and
screw into the larger threads of drain hole.
c. Position a suitable container under pipe.
d. Remove drain plug (Figure 11, Item 3) and o-
ring (Figure 11, Item 4) and drain. Discard o-ring.
e. Install drain plug (Figure 11, Item 3) and new o-
ring (Figure 11, Item 4). Remove pipe and oil level plug
(Figure 11, Item 1) and o-ring (Figure 11, Item 2). Discard