Nexen FMCBES-8-42 801481 - Manual (Page 13)

13
FORM NO. L-20241-G-1209
PARTS REPLACEMENT–MALE PILOT BEARINGS AND O-RING SEALS
MODELS 110-14, 130-19, 130-24, 7-28, 8-38, AND 8-42
TABLE 3
Align the Slotted Spring Pin (Item 25)
with the hole in the Piston.
Apply a thin film of NEVER-SEEZ ® to the
spline of the Stub Shaft (Item 23).
FIGURE 12
14
21
20/29
18
20/29 23
22
24
9. While supporting the Male Pilot and pressing on the
outer race, press the new Bearing until it is seated
against the Retaining Ring (Item 21) inside the Male
Pilot.
10. Press the new Bearing onto the Stub Shaft (Item
23).
11. Apply an adequate amount of Loctite 680 to evenly
coat the outer race of the second new Bearing.
12. Carefully align the outer race of the new Bearing with
the bore of the Male Pilot.
13. While pressing on the outer race of the first new
Bearing and supporting the inner race of the new
Bearing already in the Male Pilot, press the new
Bearing and Stub Shaft into the Male Pilot until it is
seated against the Retaining Ring inside Male Pilot.
14. Reinstall Retaining Ring (Item 21).
15. Coat the O-Ring contact surfaces of the Male Pilot,
Piston, and the new O-Ring Seals (Items 22 and 24)
with a thin film of fresh O-Ring lubricant.
16. Install the new O-Ring Seals onto the Male Pilot.
FMCBES
MODEL
RECOMMENDED TIGHTENING TORQUE
SOCKET HEAD CAP SCREW (ITEM 14)
110-14 14.2 Nm [10.5 ft-lbs]
130-19 33.2 Nm [24.5 ft-lbs]
130-24 33.2 Nm [24.5 ft-lbs]
7-28 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]
Refer to Figure 12.
1. Remove the O-Ring Seals (Items 22 and 24) from the
Male Pilot (Item 18) .
2. Remove the Retaining Ring (Item 21) from the Stub
Shaft (Item 23).
3. Press the Stub Shaft (Item 23) out of the Male Pilot
(Item 18).
NOTE
One old Bearing (Item 20 for Models 130-19, 130-24,
and 8-42 and Item 29 for Models 7-28 and 8-38) will
remain attached to the Stub Shaft (Item 23).
4. Press the old Bearing from the Stub Shaft (Item 23)
5. Press the other old Bearing out of the Male Pilot
(Item 18).
NOTE
It is not necessary to remove the Retaining Ring from
the inside of the Male Pilot.
6. Clean the bearing bore of the Male Pilot 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 one new Bearing.
8. Carefully align the outer race of the new Bearing (Item
20 or 29) with the bore of the output side of the Male
Pilot.
NOTE
The following sections are arranged by model. Verify that you are in the correct section for your model.
CAUTION
Working with spring loaded or tension
loaded fasteners and devices can cause
injury. Wear safety glasses and take the
appropriate safety precautions.