Group 170
Preventive Maintenance
54
Check Drive Shaft, Universal Joints, Slid-
ing Joints and Support Bearings
Note: For further information refer to literature in Func-
tion Group 4.
To perform a check of the driveshaft, Universal Joints,
Sliding Joints and Support Bearings complete the follow-
ing:
1
Check transmission output shaft bearing for wear.
Move the flange up and down; bearing play should
not be larger than 1.5 mm (1/16 in.).
2
Check for oil leaks past the transmission output
shaft seal.
Note: There is a difference between sweating and a
leak. If oil is seeping past the seal after cleaning,
there is a leak.
3
Check driveshaft U-joints and slip joint for play.
There should exist no noticeable play in the U-joint
bearings. The slip joint radial play maximum is 0.18
mm (0.007 in.).
4
The driveshaft tube should be straight and have no
damage or missing weights. Remove any build-up of
foreign material such as undercoating, concrete, etc.
5
Check the torque of driveshaft bolts 170 Nm (125 ±
10 ft-lb).
6
Check center bearing mounting.
7
Check rear axle pinion bearing for wear and leaks
past the seal.
Note: The Volvo CT EV87 front tandem gear input shaft
has a large play for the input shaft bearing. This is nor-
mal and does not have any damaging effect on the
transfer gear-during rotation, the shaft is balanced so
that the clearance is insignificant. If there is no oil leak-
age there is no reason for concern about this play.
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