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33
Front Axle
4.2
Inspect the threaded zerk fitting hole in
the tie rod end, and remove any obstructions.
4.3
Install a new zerk fitting.
4.4
Apply lubrication to the new zerk fitting.
1
A
5. Remove the chocks from the tires.
33–03 Draw Key Nut Torque
Checking
1
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A. Apply lubricant until new lubricant comes from these
areas.
1. Grease Fitting
Fig. 2, Sealed, Easy Steer Plus Kingpin Lubrication
Axles With Unitized Wheel Ends
Check the torque of the nut that holds the draw key
on the side of the knuckle. The torque should be 30
to 45 lbf·ft (41 to 61 N·m). See Fig. 3.
knuckle, and between the lower axle beam end
and the knuckle. See Fig. 2.
6. Remove the chocks from the tires.
33–02 Tie Rod End Lubricating
This procedure applies to all tie rod ends on Meritor
nondrive steering axles.
1. Park the vehicle with the wheels in the straightahead position. Turn off the engine, apply the
brakes, and chock the rear tires.
2. Wipe clean the zerk fitting and the seal or boot.
NOTE: Synthetic lubricants are not approved for
tie rod end lubrication.
3. Using a grease gun, apply a multipurpose
grease, NLGI grade 1 or 2, to the zerk fitting until
all the old grease is purged from the boot. Discolored old grease should come out of the purge
holes near the boot crimp or bellows area.
Apply grease until all the old grease is purged
from the boot.
NOTE: If using an air pressure grease gun, do
not exceed 150 psi (1035 kPa).
4. If the tie rod end is designed for lube service and
it does not accept grease, perform the following
substeps.
4.1
Remove the zerk fitting.
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Fig. 3, Draw Key Nut
33–04 Tie Rod End Inspecting
IMPORTANT: If the tie rod end boot is torn or
missing, replace the entire tie rod end. Do not
replace the boot only.
1. Shut off the engine, apply the brakes, and chock
the rear tires.
2. Check the tie rod boot for cracks, tears, or other
damage. If the tie rod boot is damaged, replace
the entire tie rod end.
3. Grasp by hand (or use a pipe wrench with jaw
protectors to avoid gouging the cross tube) and
33/2
Business Class M2 Maintenance Manual, July 2009