Nexen 1625 Input Unit 936001 - Manual (Page 10)

21070-D-0707 10
FMCB 1625
NOTE: Refer to Figure 10.
1. Remove the four Socket Head Cap Screws (Item 8) and
slide the Female Pilot (Item 1), Bearing (Item 2), and
the Drive Disc (Item 4) out of the FMCB.
2. Remove the Retaining Ring (Item 6).
3. Press the Drive Disc (Item 4) out of the Bearing (Item
2) and the Female Pilot (Item 1).
4. Remove the Retaining Ring (Item 3).
5. Fully supporting the Female Pilot (Item 1), press the old
Bearing (Item 2) out of the Female Pilot (Item 1) .
6. Clean the bearing bore of the Female Pilot (Item 1) with
fresh safety solvent, making sure all old Loctite ® residue
is removed.
7. Apply an adequate amount of Loctite ® 680 to evenly
coat the outer race of the new Bearing (Item 2).
8. Carefully align the outer race of the new Bearing (Item
2) with the bore of the Female Pilot (Item 1).
9. Supporting the Female Pilot (Item 1) and pressing on
the outer race of the new Bearing (Item 2), press the
new Bearing into the Female Pilot.
10. Reinstall the Retaining Ring (Item 3).
11. Support the inner race of the new Bearing (Item 2) and
press the Drive Disc (Item 4) into the new Bearing
(Item 2) and the Female Pilot (Item 1).
12. Reinstall the Retaining Ring (Item 6).
13. Apply a drop of Loctite ® 242 to the threads of the
Socket Head Cap Screws (Item 8).
14. Slide the Female Pilot (Item 1), Bearing (Item 2), and
Drive Disc (Item 4) into the FMCB and reinstall the four
Socket Head Cap Screws (Item 8).
15. Tighten the four Socket Head Cap Screws (Item 8) to
509 in-lbs (57.5 N-m).
FIGURE 10
REPLACEMENT PROCEDURE–FEMALE PILOT BEARING
Always wear safety goggles when working with
spring or tension loaded fasteners
or devices, such as the retaining rings.

2
3
1
3



Do not reuse the bearing. Applying force to the inner bearing
race to remove a bearing held by the outer race causes
damage to the bearing.
NOTE
WARNING