Lull 944E-42 Service Manual User Manual download pdf (Page 174)

100

101

Axles, Drive Shafts, Wheels, Tires and Brakes

5.28

Model 644E-42/944E-42 Rev. 6/04

b. Rear Axle

1. Block all four wheels to help prevent the vehicle

from moving after the parking brake is disabled.

2. Remove the four capscrews (1) securing the valve

plate cover (2) to the cab floor. Remove the cover.

3. Attach a remote portable hydraulic pressurizing unit

to the parking brake gauge port (3) on the secondary

function manifold (4) mounted on the valve plate.

Note: DO NOT Turn the key switch to the ON. DO NOT

Release the parking brake switch. Oil pressure will be

lost and Parking Brake will be engaged.

4. Pressurize the parking brake with the pressurizing

unit. Close the needle valve on the pressurizing unit.

5. Working through the level plug hole (5), carefully use

a screwdriver to spread the brake discs apart.

IMPORTANT: DO NOT damage the surfaces of the

brake discs when spreading the brake discs.

6. Using a feeler gauge, check the gap (6) between the

brake discs (7). If the gap is greater than:

644E ....................................0.143" (3,65 mm)

944E ....................................0.143" (3,65 mm)

Replace the brake discs if the gap is greater than

listed above.

WARNING: BLOCK ALL FOUR

WHEELS. Failure to do so could result in death

or serious injury from vehicle roll-away

OU0740

CAUTION: DO NOT exceed 650 psi (45

bar) when pressurizing the park brake. Apply-

ing too much pressure may damage the brake

seals.

MT2850

MT2840

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