Contents Section: Mechanical - Hydraulic All sections

Disc: Other Volvo 960 I рестайлинг

Mechanical - Hydraulic 4 illustrations ~766 words

PARKING BRAKE

Mounted between the front seats, the parking brake lever pivots about a spindle attached to a bracket welded to the propeller shaft tunnel. The lever is provided with a ratchet which is released by a push-button on the end of the lever. A switch, which activates a lamp on the panel to indicate that the brake is applied, is also mounted on the bracket and is operated by the lever. The lever is connected to the drum brakes at the rear by means of a cable. (Scheme 31) The front end of the cable sleeve is provided with an adjuster connected to a spring sleeve which permits the lever to be tightened by two notches after the brakes have been applied. This eliminates the ratchet and ensures that the cable tension is maintained constantly above a certain minimum (equal to the spring tension).

The cable is run along the inside of the propeller shaft tunnel and passes through the body at the rear seat panel. A rubber-coated clip is used to guide the cable at the torque rod bracket.

The cable is then curved to connect with the left rear wheel. The rear end of the cable sleeve is fitted with a plate bracket which converts the compressive force in the sleeve to a tensile force in the cable. The cable force is also transmitted to the right rear brake through a second cable located by means of two guide rails

Scheme 31

Scheme 31: PARKING BRAKE

BLEEDING BRAKE SYSTEM

Note. Use only DOT 4 grade brake fluid.

  1. Raise and support vehicle. Fill master cylinder reservoir to maximum mark. Bleed brakes in sequence. See «BRAKELINE BLEEDING SEQUENCE TABLE»(ref-46199-S22614798532001011500000) . After bleeding brakes, depress brake pedal with a force equal to an abrupt stop.
  2. Pedal travel should not exceed 2.17" (55 mm). Brake warning light should not illuminate. If air is still present in system, repeat procedure.
ApplicationSequence
960LR, RR, LF, RF

BRAKELINE BLEEDING SEQUENCE

BRAKE PEDAL HEIGHT

Brake pedal height should be equal to clutch pedal height. To adjust, loosen lock nut, remove cotter pin and turn push rod until pedal height is equal. Replace cotter pin and tighten lock nut. Pedal travel should be 6-6.5" (150-163 mm). Pedal travel can ONLY be measured during brake bleeding operation.

Note. The car must be resting on the ground when the parking brake is adjusted. The cable must be adjusted if the lever reaches the 11th notch.

Note. If a cable has been replaced, the brake must be applied 8-10 times before final adjustment is carried out.

Note. The following applies if the parking brake shoes have been replaced: Apply brake lightly, drive 200-300 meters at maximum 30 km/h to bed in the linings against the drum and carry out final adjustment.

Scheme 32

Scheme 32: PARKING BRAKE

Scheme 33

Scheme 33
  1. Remove ashtray and holder from rear of parking brake cover.
  2. Tap out spring sleeve (earlier type only).
  3. Using screwdriver and hammer, tap sleeve to free from adjusting screw. see scheme 26
  4. Adjust cable (earlier and later versions). Earlier version (Scheme 32) Later version (Scheme 33)
  5. Adjust until lever can be tightened to maximum 7-8 notches (of which the first two should be free travel). Braking action should be felt at fourth to sixth notch.
  6. Install ashtray and holder.

STOPLIGHT SWITCH

Adjust switch so brakelights come on when pedal is depressed .30-.60" (8-14 mm).

Note. Use Remover (2917) to remove disc pads.

Scheme 34

Scheme 34: Removal & Installation (ATE Brake Calipers)
  1. Raise and support vehicle. Mark position of wheel in relation to hub for reassembly reference. Remove tire and wheel. Remove brake pad retaining pins using drift and hammer. Remove brake pad retaining spring clips. Compress caliper pistons and remove brake pads. CAUTION: It is possible brake fluid may overflow from reservoir when depressing pistons.
  2. Seat pistons in caliper bore with Piston Tool (2809). To avoid brake squealing, check piston position by installing Template (2919). Piston recess should incline 20 degrees in relation to lower guide area on caliper. (Scheme 34)
  3. If distance from one piston recess to the other recess at measurement "A" exceeds.04" (1 mm), adjust piston position using Adjuster (2918) to rotate piston. (Scheme 34)
  4. Install intermediate plates (if equipped) or damper washers (if equipped) in original positions. Install NEW brake pads and ALWAYS install NEW brake pad tensioning spring. Install and tap one retaining guide pin into position. Install new tensioning spring. Install other retaining guide pin while holding tensioning spring in position.

Note. Install damper washers with the small contact face toward pad. DO NOT install intermediate plates in calipers equipped with damper washers.

REAR AXLE SEAL & BEARING

Note. Models have sealed wheel bearings. See SUSPENSION - REAR article.