Nexen FMCB-7-38 801613 - Manual (Page 14)

14 FORM NO. L-20179-H-1209
Male PIlOT BearInG anD O-rInG SealS
FMCB 130-19 anD 130-24
refer to Figure 12.
1. Remove the old O-Ring Seals (Items 21 and 22) from
the Male Pilot (Item 20).
2. Remove the Retaining Ring (Item 24) from the Stub
Shaft (Item 23).
3. Press the Stub Shaft (Item 23) out of the Male Pilot
(Item 20).
nOTe
One Bearing (Item 19) will come out of the Male Pilot
(Item 20) attached to the Stub Shaft (Item 23).
4. Remove the Bearing (Item 19) from the Stub Shaft
(Item 23).
5. Press the second Bearing (Item 19) out of the Male
Pilot (Item 20).
6. Clean the bearing bore of the Male Pilot (Item 20)
with fresh safety solvent, making sure all old Loctite ®
residue is removed.
7. Press the first new Bearing (Item 19) onto the Stub
Shaft (Item 23).
8. Apply an adequate amount of Loctite ® 680 to evenly
coat the outer race of the new Bearing (Item 17).
9. Carefully align the outer race of the new Bearing (Item
19) with the bore of the Male Pilot (Item 20).
10. Supporting the Male Pilot (Item 20) and pressing on
the outer race of the new Bearing (Item 19), press the
new Bearing and Stub Shaft into the Male Pilot.
11. Apply an adequate amount of Loctite ® 680 to evenly
coat the outer race of the second new Bearing (Item
19).
12. While supporting both the Stub Shaft and Male Pilot
and pressing on both the inner and outer races of the
new Bearing, press the second new Bearing into the
Male Pilot and onto the Stub Shaft.
13. Reinstall Retaining Ring (Item 24).
14. Coat the O-Ring contact surfaces of the Male Pilot,
Piston, and the O-Ring Seals with a thin film of O-Ring
lubricant and install the new O-Ring Seals (Items 21
and 22).
15. Apply a thin film of NEVER-SEEZ ® to the spline of the
Stub Shaft (Item 23).
16. Align the Slotted Spring Pin (Item 17) in the Male Pilot
with the hole in the Piston.
17. Slide the Male Pilot and Stub Shaft into the FMCB.
18. Apply a drop of Loctite
® 242 to the threads of the
Socket Head Cap Screws (Item 13).
19. Reinstall the four Socket Head Cap Screws (Item
13) securing the Male Pilot to the Air Chamber (Item
12).
20. Tighten the four Socket Head Cap Screws (Item
13) to 33.2 Nm 24.5 ft-lb torque.
Figure 12
12
22 21
23
19
20
19
24
13
Apply a thin film of NEVER-
SEEZ
® to the spline.
Align the Slotted Spring Pin (Item 25)
with the hole in the Piston.
CAUTION
Working with spring loaded or tension
loaded fasteners and devices can cause
injury. Wear safety glasses and take the
appropriate safety precautions.
nOTe: The following sections are arranged by model. Verify that you are in the correct section for your model.