ALTRACO ELECTRONIC DISC BRAKE CALIPER Especificações descarregar pdf (Página 17)

Section 5

Assembly and Installation

3. Install a new dust seal into the top groove of

the bore. Do not use silicone grease on the dust

seal. Figure 5.1.

NOTE: Take care when you install the O-ring, so

that the cylinder cap threads don’t cut the O-ring.

4. Install a new O-ring into the cylinder cap

groove between the threads and flange.

NOTE: Apply extra grease to the O-ring before

you install a cylinder cap to help prevent the

O-ring from catching on cylinder cap threads.

5. Apply extra grease to the O-ring. Install the

cylinder cap into the caliper housing. Tighten

the cylinder cap to the following specificaitons.

6. Install the pistons into the housing, with the

hole in the piston toward the lining. Push the

pistons into the housing from the lining side of

the housing. Check that the pistons are straight

in the bores.

7. Push each piston into the bore until the top of

each piston is even with the top of the dust

seal.

8. Install the bleeder screws into the housing and

tighten them to 100-180 lb-in (11.3-20.3 N•m).

9. Install the O-ring and the inlet fitting into the

cylinder cap.

Installation

Caliper

1. Place blocks under the wheels of the vehicle to

keep the vehicle from moving.

2. If shims are used, put the shims in the position

marked during removal.

3. Place the caliper housing on the mounting

bracket. Install the fasteners that hold the

caliper onto the bracket. Tighten the fasteners

to the torque specified by the equipment

manufacturer.

WARNING

To prevent serious eye injury, always wear safe

eye protection when you perform vehicle

maintenance or service.

Assembly

Caliper

CAUTION

Only use specified components when you

assemble the caliper. If you install the incorrect

components, the caliper will not operate

correctly. If you use non-Meritor parts, incorrect

brake operation can occur. Damage to

components can result.

NOTE: You must lubricate the O-rings, back-up

rings, pistons and bores before you can install

the pistons.

1. Lubricate all pistons, bores, O-rings and back-

up rings with silicone grease such as Dow

Corning DC-4 or equivalent. If silicone grease is

not available, use the same type of fluid that is

used in the brake system.

2. Install a new O-ring and a back-up ring into the

groove in the middle of the bore.

A. Install the back-up ring toward the lining

side of the bore. Figure 5.1.

B. Install the O-ring behind the back-up ring.

Figure 5.1.

Figure 5.1

Install the back-up

ring toward lining

side of bore.

Install the O-ring behind

the back-up ring.

O-RING

BACK-

UP RING

DUST SEAL

BACK-UP RING

AND O-RING

GROOVE

DUST SEAL

GROOVE

Model Torque (Minimum)

HDB 640 500 lb-ft (680 N•m)

SCL 35, SCL 46, SCL 53 75 lb-ft (100 N•m)

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 23 24 25

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