Nexen FMCBES-8-42 801481 - Manual (Page 11)

11
FORM NO. L-20241-G-1209
Refer to Figure 9.
2. Remove 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 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).
NOTE
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.
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 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
and Female Pilot (Item 1).
12. Reinstall 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 FMCBES and reinstall the
four Socket Head Cap Screws (Item 8).
15. Tighten four Socket Head Cap Screws (Item 8) to the
recommended torque (See Table 1).
PARTS REPLACEMENT –PISTON BEARING AND O-RING SEALS
FMCBES 110-14, 130-19, 130-24, 7-28, 7-38, 8-38, AND 8-42
NOTE
Socket Head Cap Screws are Item 14 for Models
110-14, 130-19, and 130-24, and Item 8 for all other
models.
Refer to Figure 10.
1. Remove the four Socket Head Cap Screws and
separate the Air Chamber (Item 13) from the Housing
(Item 7).
2. Remove the four Socket Head Cap Screws (Item 14)
securing the Male Pilot (Item 18) to the Air Chamber
(Item 13).
3. Remove the Male Pilot (Item 18) and Stub Shaft (Item
23) from the Air Chamber (Item 13).
TABLE 1
FMCBES
MODEL
RECOMMENDED TIGHTENING TORQUES
SOCKET HEAD CAP SCREW (ITEM 8)
130-19 14.2 Nm [10.5 ft-lbs]
130-24 14.2 Nm [10.5 ft-lbs]
7-28 33.2 Nm [24.5 ft-lbs]
7-38 33.2 Nm [24.5 ft-lbs]
8-38 67.1 Nm [49.5 ft-lbs]
8-42 67.1 Nm [49.5 ft-lbs]
8/14
7
13
14
18
23
FIGURE 10
PARTS REPLACEMENT – FEMALE PILOT BEARING (continued)
CAUTION
Working with spring loaded or tension
loaded fasteners and devices can cause
injury. Wear safety glasses and take the
appropriate safety precautions.