FORM NO. L-20179-F-1002
12
PARTS REPLACEMENT (PISTON BEARING AND O-RING SEALS)
NOTE: The following sections are arranged by model. Verify that you are in the correct section for your model.
FMCB 130-19 AND 130-24
1.
Remove the four Socket Head Cap Screws (Item
13) and separate the Air Chamber (Item 12) from
the Housing (Item 1) (See Figure 13).
2.
Remove the four Socket Head Cap Screws (Item
13) securing the Male Pilot (Item 20) to the Air
Chamber (Item 12) (See Figure 13).
3.
Remove the Male Pilot (Item 20) and Stub Shaft
(Item 23) from Air Chamber (Item 12) (See
Figure 13).
Always wear safety
goggles when
working with spring
or tension loaded
devices such as
retaining rings.
WARNING
4.
Remove the Retaining Ring (Item 6) from the
Splined Disc (Item 10) (See Figure 14).
5.
Press the Splined Disc (Item 9) from the Bearing
(Item 2) (See Figure 14).
6.
Remove the Piston (Item 16) from the Air Chamber
(Item 12) (See Figure 14).
7.
Remove the Retaining Ring (Item 3) from the Piston
(See Figure 14).
8.
Remove the O-ring Seals (Items 14 and 15) from
the Piston and Air Chamber (See Figure 14).
9.
Press the Bearing (Item 2) out of the Piston (Item
16) (See Figure 14).
10. Clean the bearing bore of the Piston with fresh
safety solvent, making sure that all old Loctite
®
residue is removed.
11. Apply an adequate amount of Loctite
®
680 to
evenly coat the outer race of the new Bearing (Item
2).
12. Carefully align the outer race of the new Bearing
(Item 2) with the bore of the Piston.
13. Supporting the Piston (Item 16) and pressing on the
outer race of the new Bearing (Item 2), press the
new Bearing into the Piston (See Figure 14).
14. Reinstall the Retaining Ring (Item 3), securing the
Bearing to the Piston (See Figure 14).
15. Coat the o-ring contact surfaces of the Air
Chamber, Piston, and the O-ring Seals with a thin
film of o-ring lubricant and install the new O-ring
Seals (Items 14 and 15) (See Figure 14).
16. Slide the Piston (Item 16) into the Air Chamber
(Item 12).
17. Support the inner race of the Bearing (Item 2) and
press the Splined Disc (Item 9) into the Bearing and
Piston (See Figure 14).
18. Reinstall the Retaining Ring (Item 6) that secures
the Splined Disc to the Bearing (See Figure 14).
19. Apply a drop of Loctite
®
242 to the threads of the
Socket Head Cap Screws (Item 13).
20. Reinstall and tighten the four Socket Head Cap
Screws (Item 13) securing the Air Chamber (Item
12) to the Housing (Item 1) to 33.2 Nm 24.5 ft-lb
torque.
Figure 13
Figure 13
Figure 13
Figure 13
Figure 13
12
12
12
12
12
23
23
23
23
23
20
20
20
20
20
13
13
13
13
13
13
13
13
13
13
1
1
1
1
1
Figure 14
Figure 14
Figure 14
Figure 14
Figure 14
9
9
9
9
9
12
12
12
12
12
6
6
6
6
6
3
3
3
3
3
2
2
2
2
2
16
16
16
16
16
15
15
15
15
15
14
14
14
14
14
®
DIST. AUTORIZADO
MEX (55) 53 63 23 31
QRO (442) 1 95 72 60
MTY (81) 83 54 10 18
[email protected]
