JLG 1100S Service Manual - Manual (Page 96)

SECTION 3 - CHASSIS & TURNTABLE
3-54 – JLG Lift – 3121256
To ensure correct brake operation, it is important
that the backing rings are assembled opposite ti the
pressurized side of piston (9).
5. Correctly orientate piston (9) aligning spaces with
the two dowel pin holes and, assemble into cylinder
housing (8) taking care not to damage seals and
carefully lay aside.
6. Loctite 2-off pins (19) in housing (2) followed by
pressure plate (4) and friction plates i.e. an inner (3)
followed by an outer (6) in correct sequence.
7. Position gasket (7) in correct orientation.
8. Align two holes in cylinder with dowel pins (19) and
assemble piston & cylinder sub-assembly to remain-
der of brake securing with 6-off socket head cap
screws and washers (13 & 14). Torque to 55ft/lbs.
(75 Nm).
NOTE: The use of a suitable press (hydraulic or arbor)
Pressing down on cylinder end face “B” will ease
assembly of the socket head cap screws (13).
1. Brake Shaft
2. Housing
3. Inner Friction Plate
4. Pressure Plate
5. Gasket
6. Outer Plate
7. Gasket 8. Cylinder
9. Piston
10. Deep Groove Ball Bearing
11. Internal Retaining Ring
12. Rotary Shaft Seal
13. Socket Head Cap Screw
14. Shakeproof Washer 15. O-Ring
16. Backing Ring
17. O-Ring
18. Backing Ring
19. Dowel Pin
20. Hexagon Plug
21. Plastic Plug
21A. Socket Pressure Plug
Figure 3-44. Swing Brake Assembly