Input Brake Disassembly - JLG 400S Service And Maintenance Manual

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SECTION 3 - CHASSIS & TURNTABLE

Input Brake Disassembly

Refer to Figure 3-39.

1. Insert and tighten the 0.250-20 UNC flat Socket Head

Cap Screws through the Pressure Plate (8M) and into the

Brake Piston (8A) to compress the springs and relieve

pressure on the Retaining Ring (8N).

SAFETY GLASSES MUST BE WORN DURING THESE NEXT STEPS.

NOTE: Ensure Step 1 is completed before doing this next step.

2. Using retaining ring pliers, remove Retaining Ring (8N)

which holds the Brake Piston assembly in place.

3. Lift Brake Piston Assembly (8A) out of the Brake Housing

4. Remove O-rings (8D, 8F) and Backup Rings (8E, 8H) from

5. Remove 0.250-20 UNC flat Socket Head Cap Screws and

NOTE: Record the number of springs and mark their locations

6. Remove Springs (8L) from the Brake Piston (8A).

Figure 3-39. Input Brake Disassembly

(6). If the Brake Piston assembly (8A) will not lift out,

apply less than 50 psi air to the Brake port to remove

Brake Piston (8A). Remove the Inner (Rotor) (8J), Outer

(Stator) Plates (8K), from inside Brake Housing (6).

the Brake Housing (6).

Discard O-rings and Backup Rings.

lift the Pressure Plate (8M) from the Brake Piston (8A).

before removing them from brake piston.