Technical characteristics of the brake system (Scorpio 1)

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The service brake with anti-lock braking system is actuated by a hydraulic dual-circuit master brake cylinder (tandem type) and additionally by a hydraulic auxiliary device.

The hydraulic circuits of the front (right and left) brakes are separated and controlled by the master brake cylinder. The rear brakes (in the "Y" system) are controlled by a hydraulic auxiliary device.

The handbrake is mechanically actuated and operates the rear brakes.

Front brakes



The front brakes are disc brakes. They use ventilated discs and single-piston floating calipers.

Brake disc outer diameter
260 mm (cars with 2.9 l 24V engine – 278 mm)
Disc thickness:
- nominal
24.05 mm
- minimum acceptable
22.2 mm
Maximum disc runout
0.15 mm
Caliper cylinder diameter
60.0 mm
Brake pad type
Ferodo 343 25 FF
Brake pad sizes
38 x 111 mm
Thickness of overlays (without base plate):
- nominal
18.0 mm
- minimum acceptable
determined by the wear of the groove on the surface of the brake pad

Rear brakes



The rear brakes are disc brakes. They are equipped with full discs and floating calipers with one piston.

Support:
- brand and type
Ford L2 9024
– piston diameter
43 mm
Disk:
– outer diameter
252.7 mm (cars with 2.9 l 24V engine – 272 mm)
– thickness:
nominal
10.1 mm (on cars) "Turnier" and with 2.9 l 24V engines – 20 mm)
nominal permissible
8.9 mm (on cars) "Turnier" and with 2.9 l 24V engines – 18 mm)
– maximum disc runout
0.15 mm
Brake pads:
– brand and type of pads
DON 8106/1
– nominal thickness
13.5 mm
– nominal permissible thickness
determined by the wear of the groove on the surface of the brake pad



Drive system



The system that operates the service brake is hydraulic, contains a dual-circuit master brake cylinder and a hydraulic auxiliary device, as well as an anti-lock braking system.

Brand
ABS Teves MK II, from 04.1992 – ABS Teves MK IV
Electronic control device
Teves
Wheel speed sensor resistance
0.8 – 1.4 Ohm
Control pressure
4 – 9 MPa
Operating pressure of the safety valve of the system
21 MPa

Brake fluid



Quantity
1.4 dm³
Type
brake fluid Ford SAM 6C 9103 A
Replacement frequency
every 60,000 km or once every two years

Master brake cylinder



In the cavity of the main cylinder there are two pistons located in series, each of which controls its own circuit.

Brand
Bendix or Ate
Piston diameter
22.0 – 22.2 mm

Vacuum brake booster



The brake booster operates on the master cylinder and contains a single diaphragm.

Effective diameter: 227 mm.

Pressure regulator



The pressure regulator is installed on the rear brake line and limits the braking force of the rear wheels.

Tightening moments



Bracket of the caliper to the steering knuckle of the wheel
65 – 75 Nm
Fastening the front brake caliper to the bracket
31 – 35 Nm
Rear Brake Caliper Holder Mount
51 – 61 Nm
Fastening the rear brake caliper to the guide pin
51 – 61 Nm
Fastening the hydraulic control unit to the front bulkhead
41 – 51 Nm
Fastening the hydraulic accumulator to the brake cylinder
34 – 46 Nm
Brake cylinder mount
70 – 90 Nm
Fastening of connectors (Banjo) of high pressure pipelines
16 – 24 Nm
Brake fluid reservoir holder mount
40 – 60 Nm
Wheel speed sensor mount
85 – 110 Nm
Deaerator, max
10.5 Nm
Wheel mounting nut
100 Nm


For more information, please visit the specified website FordBook






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