HP Indigo 7800 ITM Bearings Alignment - Page 34

until the locking ring no longer moves with 4 Nm force. This is the zero point.

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4. Use the ITM bearing front locking tool to screw the locking ring in place, as follows: a. Set the torque wrench to 4 Nm force. b. Tighten the front locking ring in place until the torque jumps. Figure 5-33 Tightening the front locking ring with the toque wrench c. Manually rotate and jiggle the drums to release the inner bearing if it is stuck on the drum shaft. d. Retighten the locking ring again using a torque wrench that is set to 4 Nm. e. Repeat steps c. andd. until the locking ring no longer moves with 4 Nm force. This is the zero point. 5. Install the drum rotation stopper. 32 Chapter 5 Aligning the ITM bearings

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4.
Use the ITM bearing front locking tool to screw the locking ring in place, as follows:
a.
Set the torque wrench to
4 Nm force.
b.
Tighten the front locking ring in place until the torque jumps.
Figure 5-33
Tightening the front locking ring with the toque wrench
c.
Manually rotate and jiggle the drums to release the inner bearing if it is stuck on the drum shaft.
d.
Retighten the locking ring again using a torque wrench that is set to 4 Nm.
e.
Repeat steps
c.
and
d.
until the locking ring no longer moves with 4 Nm force. This is the zero point.
5.
Install the drum rotation stopper.
32
Chapter 5
Aligning the ITM bearings