HP Indigo 7800 ITM Bearings Alignment - Page 28

Removing the ITM bearing alignment jig

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11. Move to the rear bearing. Tighten the three rear bearing cover screws again to 4 Nm. 12. Set the torque wrench to 5 Nm. Tighten the three rear bearing cover screws again. 13. Move to the front bearing. Tighten the three front bearing cover screws again to 5 Nm. 14. Set the torque wrench to 6Nm. Tighten the three front bearing cover screws again. 15. Move to the rear bearing. Tighten the three rear bearing cover screws again to 6 Nm. 16. Set the torque wrench to 7 Nm. Tighten the three rear bearing cover screws again. 17. Move to the front bearing. Tighten the three front bearing cover screws again to 7 Nm. 18. Set the torque wrench to 8 Nm. Tighten the three front bearing cover screws again. 19. Move to the rear bearing. Tighten the three rear bearing cover screws again to 8 Nm. 20. Set the torque wrench to 9 Nm. Tighten the three front bearing cover screws again. 21. Move to the rear bearingTighten the three rear bearing cover screws again to 9 Nm. There are 3 screws. With each 9 Nm step, all the screws will be tightened the same amount of times. Removing the ITM bearing alignment jig Removal of ITM bearing alignment jig. 1. Uninstall the front and rear caps from the front and rear chucksPlace it back in the case. 2. Using the hook spanners loosen the front and rear chucks. 3. Remove the rear chuck along with the ITM bearing alignment jig shaft. 4. Disassemble the rear chuck from the ITM bearing alignment jig shaft and place it back in the case. 5. Remove the front chuckPlace it back in the case. 26 Chapter 5 Aligning the ITM bearings

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11.
Move to the
rear
bearing. Tighten the three
rear
bearing cover screws again to
4 Nm
.
12.
Set the torque wrench to
5 Nm
. Tighten the three
rear
bearing cover screws again.
13.
Move to the
front
bearing. Tighten the three
front
bearing cover screws again to
5 Nm
.
14.
Set the torque wrench to
6Nm
. Tighten the three
front
bearing cover screws again.
15.
Move to the
rear
bearing. Tighten the three
rear
bearing cover screws again to
6 Nm
.
16.
Set the torque wrench to
7 Nm
. Tighten the three
rear
bearing cover screws again.
17.
Move to the
front
bearing. Tighten the three
front
bearing cover screws again to
7 Nm
.
18.
Set the torque wrench to
8 Nm
. Tighten the three
front
bearing cover screws again.
19.
Move to the
rear
bearing. Tighten the three
rear
bearing cover screws again to
8 Nm
.
20.
Set the torque wrench to 9
Nm
. Tighten the three front bearing cover screws again.
21.
Move to the rear bearingTighten the three rear bearing cover screws again to 9
Nm
.
There are 3 screws. With each 9 Nm step, all the screws will be tightened the same amount of times.
Removing the ITM bearing alignment jig
Removal of ITM bearing alignment jig.
1.
Uninstall the front and rear caps from the front and rear chucksPlace it back in the case.
2.
Using the hook spanners loosen the front and rear chucks.
3.
Remove the rear chuck along with the ITM bearing alignment jig shaft.
4.
Disassemble the rear chuck from the ITM bearing alignment jig shaft and place it back in the case.
5.
Remove the front chuckPlace it back in the case.
26
Chapter 5
Aligning the ITM bearings