JLG 660SJ Service Manual - Manual (Page 69)

SECTION 3 - CHASSIS & TURNTABLE
3120840 – JLG Lift – 3-19
Pressure Plate (8B). Then, remove Flat Head Cap
Screws (22) and Pressure Plate (8B) from brake cav-
ity in Spindle (1A).
4. Remove Compression Springs (8L) from Piston (8A).
EYE PROTECTION MUST BE WORN WHILE PERFORMING THE
NEXT STEP IN THIS PROCEDURE.
5. Using an air hose, slowly and carefully pressurize
the brake port in the Spindle (1A) until the Piston
(8A) comes out of piston bore of Spindle (1A), Then
pull the Piston (8A) the rest of the way out of the
Spindle (1A) by hand.
6. Remove Backup Rings (8E) & (8H) and O-rings (8D)
& (8F) from grooves in Piston (8A).
7. Remove Rotors (8J) and Stators (8K) from brake
cavity in Spindle (1A).
8. Remove Coupling Subassembly (7) from brake cav-
ity in Spindle (1A).
9. Remove Retaining Ring (1K) out of the internal
groove using appropriate tool.
10. Remove the Spacer (1M) & Spring (1L) out of the
bore of Coupling (7).
11. Remove Plastic Plug (12) & Pipe Plug (21) from
Spindle (1A) if applicable.