U-BOLT INSTALLATION
M-4
U-BOLT
1.
U-BOLT installation and torquing should be
done only after completion of axle weld. Be
sure to provide sufficient cooling time
before applying torque wrench.
2.
Do not apply any lubricants to the u-bolts.
3.
Be sure that the u-bolt spacer is located
centrally under the u-bolt.
4.
Snug u-bolts evenly before applying torque.
5.
Torque u-bolts by following 3 step
sequence shown. Deviation from this
sequence could result in an improperly
installed clamp assembly which could
cause damage to the axle connection.
FIRST ..........205 NM (150 ft lbs)
1*2*3*4
SECOND ....410 NM (300 ft lbs)
4*3*2*1
THIRD..........650 NM (480 ft lbs)
4*3*2*1
FIRST ..........205 NM (150 ft lbs)
1*2*3*4
(shown below)
SECOND ....410 NM (300 ft lbs)
4*3*2*1
THIRD..........650 NM (480 ft lbs)
4*3*2*1
It is important to follow this 3 step sequence for
every installation.
Torquing Sequence
