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SECTION 3 - LUBRICATION AND MAINTENANCE
3-81
AS REQUIRED
i. Draw in the wheels by gradually
cross-torquing the outer wheel flanged
nuts, 8, to 300 N⋅m (220 ft. lbs.). Do not
overtighten the bolts or thread damage
may result.
IMPORTANT: Do not lubricate the threads
of the tie rods with any type of grease, oil,
or lubricating spray.
NOTE: Special tool BLR20025 deep
well socket is available to assist in
tightening the outer wheel nuts. Order
the tool from SPX/OTC tool company.
j. Be sure that the spacer is entering the
diameter of the inner and outer wheels
evenly and without any distortion of the
spacer or wheels.
k. Be sure the flanged backing nut, 3, is
against the inner wheel disc. Hold the tie
rodwithapipewrenchorvisegrippliersto
prevent rotation during the torquing
procedure. Torque the flanged backing
nuts, 3, to 440 N⋅m (325 ft. lbs.). The inner
tie rod flanged locknut should not need
torquing. It will be drawn up tight when the
backing nut is torqued.
NOTE: Special crowfoot wrench
BLR20027 is available to torque the
backing nuts. Order the tool from
SPX/OTC tool company.
l. Install jam nuts (not shown) on top of the
outer wheel nuts, 8, and torque them to
320 N⋅m (235 ft. lbs.).
m. Repeat the above procedure for the
remaining three sets of duals.
n. Drivethe tractor steering from lock to lock.
Park the tractor and recheck the torques
on the outer wheel nuts as detailed in
Steps i and l.
REMINDER
All wheel mounting hardware should be
re-tightened to the specified torque after the first
hour of operation, thenafter every three hours of
operation for the first day. Re-tighten to the
specified torque daily until wheel hardware
maintains specified torque.
8
2
5
3
7
4
1
6
Figure 3-133