(6) Install the yoke washer and a new nut on the
pinion gear. Tighten the nut to 298 N·m (220 ft. lbs.)
minimum. Do not over–tighten. Maximum torque
is 380 N·m (280 ft. lbs.).
CAUTION: Never loosen pinion gear nut to
decrease pinion gear bearing rotating torque and
never exceed specified preload torque. If preload
torque is exceeded a new collapsible spacer must
be installed. The torque sequence will have to be
repeated.
NOTE: A new collapsible spacer will start to crush
at around 265 ft. lbs. torque. If the spacer requires
more than 280 ft. lbs. torque to crush, the collapsible
spacer is defective.
(7) Using yoke holder 6958, a short length of 1 in.
pipe, and a torque wrench set at 380 N·m (280 ft.
lbs.), crush collapsible spacer until bearing end play
is taken up (Fig. 20).
(8) Slowly tighten the nut in 6.8 N·m (5 ft. lbs.)
increments until the rotating torque is achieved.
Measure the rotating torque frequently to avoid over
crushing the collapsible spacer (Fig. 21).
(9) Check rotating torque with an inch pound
torque wrench (Fig. 21). The torque necessary to
rotate the pinion gear should be:
² Original Bearings — The reading recorded during
removal, plus an additional 0.56 N·m (5 in. lbs.).
² New Bearings — 2 to 5 N·m (15 to 35 in. lbs.).
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