freightliner M2 Plus Maintenance Manual page 107

Driveline
41–00 Safety Precautions
Safety Precautions in this section apply to all
procedures within this group.
DANGER
When working on the vehicle, shut down the
engine or motor, set the parking brake, and chock
the tires. Before working under the vehicle, always
place jack stands under the frame rails to ensure
the vehicle cannot drop. Failure to follow these
steps could result in serious personal injury or
death.
41–01 Driveline Inspecting
Driveline Inspection
WARNING
Do not service or inspect a driveshaft with the
engine running. A rotating driveshaft can cause
serious personal injury.
Loose end yokes, excessive radial looseness, slip
spline radial looseness, bent shaft tubing, or missing
plugs in the slip yoke can cause universal joint and
bearing defects.
See Fig. 1 for an illustration of the ArvinMeritor
Full-Round driveline. See
™
the ArvinMeritor Easy Service
driveline.
09/19/2001
Fig. 1, Full-Round Driveline
Business Class M2 Plus Maintenance Manual, 02/10/2023
™
Fig. 2 for an illustration of
™
or 1/2 Round
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09/19/2001
Fig. 2, Easy Service (1/2 Round) Driveline
1. Check the output and input end yokes on both
the transmission and axle for axial looseness.
Refer to the axle or transmission manufacturer's
service information for the correct specifications.
If loose, disconnect the driveshaft. For
instructions, see Group 41 of the Business
Class® M2 Plus Workshop Manual. Tighten the
end yoke retaining nut to the proper
specification. Refer to the axle or transmission
manufacturer's service information for the correct
specifications.
2. Inspect for worn universal joints. Apply a vertical
force of about 50 pounds to the driveline near
the universal joints. If there is any movement,
replace the universal joint. For instructions, see
Group 41 of the Business Class M2 Plus
Workshop Manual.
3. Examine the slip yoke spline for excessive radial
movement. See Fig.
looseness exists between the slip yoke and the
tube shaft, replace the slip yoke and the tube
shaft. For instructions, see Group 41 of the
Business Class M2 Plus Workshop Manual.
4. Examine the shaft for damaged or bent tubing.
Carefully remove any foreign material, such as
mud or dirt on the shaft.
41–02 Driveline Lubricating
Driveline Lubrication
The Full-Round and Easy Service drivelines require
periodic lubrication of the universal joints and slip
yoke splines. See Fig. 4
41
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3. If excessive radial
for the areas that need
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