JLG 24RS Service Manual - Manual (Page 64)

SECTION 3 - CHASSIS & TURNTABLE
3-26 – JLG Lift – 3121287
INPUT BRAKE ASSEMBLY
1. Starting with a stator (8K), alternately stack and install
stators (8K) into lobes or splines of the brake housing (6)
and rotors (8J) (internal splines) onto splines of the sun
gear (8).
NOTE: There should always be a stator on the top and bottom of
the stack.
2. Insert the brake piston (8A) completely into the brake
housing (6) without o-rings (8D, 8F) and backup rings
(8E, 8H) to check the fit of the brake. The brake piston
(8A) should slide into the brake housing (6) without
being forced. If the brake piston (8A) does not fit, check
for burrs or size problems before proceeding.
3. Grease the o-rings (8D, 8F) and install the smaller diame-
ter o-ring (8F) into the smaller diameter o-ring groove in
the brake housing (6) and install the larger diameter o-
ring (8D) into the larger diameter O-Ring groove in the
brake housing (6).
4. Insert the smaller diameter solid backup ring (8H) into
smaller groove in brake housing (6) between the o-ring
(8F) and side of the groove towards the output shaft
(1A).
5. Insert larger diameter solid backup ring (8E) into groove
in brake housing (6) between o-ring (8D) and side of
groove towards the motor (31).
6 Brake Housing
8A Brake Piston
8D O-ring
8E O-ring/back Up Ring
8F O-ring
8H O-ring/back Up Ring 8J Brake Rotor
8K Brake Stator
8L Spring
8M Pressure Plate
8N Internal Retaining Ring
Figure 3-18. Input Brake Assembly