HP Indigo 7800 ITM Bearings Alignment - Page 37

use the straw attached to the can to reach very small threaded holes.

Get HP Indigo 7800 PDF manuals and user guides View all HP Indigo 7800 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 37 highlights

e. Repeat steps 4. -9.. 11. Remove the drum rotation stopper and the ITM bearing front locking tool. 12. Verify that the drum rotates freely. 13. Install four new M4 x 20 mm screws on the front bearing ring (flange) as follows: a. Clean the threads (both the screw and hole) using IPA or equivalent. b. Use a clean wipe to absorb the remaining IPA. Do not touch the threads after this. c. Apply Loctite 7471 primer/activator evenly to the threads of the screw and the hole. If necessary, use the straw attached to the can to reach very small threaded holes. d. Wait 60 seconds for the Loctite 7471 to evaporate. e. Apply a drop of Loctite242/Omnifit100 thread locker adhesive. f. Install the four screws. Wait at least 3 hours before use. NOTE: Verify the correct position of the locking ring. If the ring is not installed properly and the thread is damaged, the locking screws protrude more from the ring. Therefore, measure it and attach a paper note such as: "Screw head must be 5 ±1 mm from the ring". Finishing ITM bearings alignment 35

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
e.
Repeat steps
4.
-
9.
.
11.
Remove the drum rotation stopper and the ITM bearing front locking tool.
12.
Verify that the drum rotates freely.
13.
Install four new M4 x 20 mm screws on the front bearing ring (flange) as follows:
a.
Clean the threads (both the screw and hole) using IPA or equivalent.
b.
Use a clean wipe to absorb the remaining IPA. Do not touch the threads after this.
c.
Apply Loctite 7471 primer/activator evenly to the threads of the screw and the hole. If necessary,
use the straw attached to the can to reach very small threaded holes.
d.
Wait 60 seconds for the Loctite 7471 to evaporate.
e.
Apply a drop of Loctite242/Omnifit100 thread locker adhesive.
f.
Install the four screws. Wait at least 3 hours before use.
NOTE:
Verify the correct position of the locking ring. If the ring is not installed properly and the thread is
damaged, the locking screws protrude more from the ring. Therefore, measure it and attach a paper note
such as: "Screw head must be 5 ±1 mm from the ring".
Finishing ITM bearings alignment
35