8-6. FRONT PLANETARY WHEEL ENDS - REPLACE (Contd)
PRELOAD WHEEL BEARINGS.
Seat bearings and related components by
tightening the hub bearing nut (14) to 100 lb.
ft. while hub is rotated in both directions.
Back off hub bearing nut (14) to relieve
preload on bearings. Torque on nut should
be 0 lb. ft.
Use fabricated hub drag tool and a torque
wrench to check rolling torque while hub is
rotating at a steady rate (not starting torque).
Tighten hub bearing nut (14) and check hub
rolling torque again. Increase in rolling
torque from zero preload, should be 3 to 5 lb.
ft. for new bearings.
If bearings are to be reused, the increase in rolling torque
should be 1.5 to 2.5 lb. ft.
INSTALL PLANETARY RING GEAR (13) AND
SUN GEAR (11).
Install dowel pin (15), if removed.
Locate hole (A) on back of planetary ring
gear (13). Orient ring gear (13) with respect
to dowel pin (15) on wheel hub bearing nut
If pin (15) is not aligned with hole A of ring gear, spider assembly (1) will not fit tight to wheel hub.