Specifications
| Item | Specification |
|---|---|
| Master cylinder Type I.D. mm (in) Piston stroke mm (in) Fluid level switch | Fixed type 22.22 mm (0.875 in) 45 ± 1 mm (1.77 ± 0.039 in) Provided |
| Brake booster Type Boosting ratio | 10.5" Single 9:1 |
| Front brake (Disc) Type Disc O.D Disc thickness Cylinder type Cylinder I.D. | Ventilated disc 320 mm (12.59 in) 28 mm (1.10 in) Double piston Ø 63.5 mm (2.5 in) |
| Rear brake (Disc) Type Disc O.D Disc thickness Cylinder type Cylinder I.D | Solid disc 302 mm (11.89 in) 11 mm (0.43 in) single piston Ø 43 mm (1.69 in) |
| Parking brake Type Drum (Disc) I.D | DIH (Drum in hat) Ø 190 mm (7.48 in) |
| NOTE: O.D.: Outer Diameter I.D: Inner Diameter | |
| NOTE |
|---|
| O.D.: Outer Diameter I.D: Inner Diameter |
| Part | Item | Standard value | Remark |
|---|---|---|---|
| HECU | System | 4 Channel 4 Sensor (Solenoid) | Total control (ABS, EBD, TCS, ESC) |
| Type | Motor, valve relay integrated type | ||
| Operating Voltage | 10 ~ 15 V | ||
| Operating Temperature | 40 ~ 110 °C (-40 ~ 230°F) | ||
| Motor power | 270W | ||
| Active Wheel speed sensor | Supply voltage | DC 4.5 ~ 20 V | |
| Output current low | 5.9 ~ 8.4 mA | ||
| Output current high | 11.8 ~ 16.8 mA | ||
| Output range | 1 ~ 2500 Hz | ||
| Tone wheel | 52 teeth | ||
| Air gap | 0.4 ~ 1.5 mm |
PART SPECIFICATION (ESC)
| Items | Standard value |
|---|---|
| Brake pedal Full stroke | 117.1 mm (4.61 in) |
| Stop lamp switch clearance | 1.0 ~ 2.0 mm (0.04 ~ 0.08 in) |
| Brake pedal free play | 3 ~ 8 mm (0.12 ~ 0.31 in) |
| Front brake disc thickness | 28 mm (1.10 in) |
| Front brake disc pad thickness | 11 mm (0.43 in) |
| Rear brake disc thickness | 11 mm (0.43 in) |
| Rear brake disc pad thickness | 10 mm (0.39 in) |
SERVICE STANDARD SPECIFICATION
| Items | N.m | Kgf.m |
|---|---|---|
| Hub nut | 88.3 ~ 107.9 | 9.0 ~ 11.0 |
| Master cylinder to brake booster | 12.7 ~ 16.7 | 1.3 ~ 1.7 |
| Brake booster mounting nuts | 16.7 ~ 25.5 | 1.7 ~ 2.6 |
| Air bleeding screw | 6.9 ~ 12.7 | 0.7 ~ 1.3 |
| Brake tube flare nuts | 12.7 ~ 16.7 | 1.3 ~ 1.7 |
| Front caliper guide rod bolts | 21.6 ~ 31.4 | 2.2 ~ 3.2 |
| Rear caliper guide rod bolts | 21.6 ~ 31.4 | 2.2 ~ 3.2 |
| Front caliper assembly to knuckle | 78.5 ~ 98.1 | 8.0 ~ 10.0 |
| Rear caliper assembly to knuckle | 63.7 ~ 73.5 | 6.5 ~ 7.5 |
| Brake hose to caliper | 24.5 ~ 29.4 | 2.5 ~ 3.4 |
| Brake pedal member bracket nuts | 8.8 ~ 13.7 | 0.9 ~ 1.4 |
| Brake pedal shaft nut | 24.5 ~ 34.3 | 2.5 ~ 3.5 |
| Wheel speed sensor mounting bolt | 6.9 ~ 10.8 | 0.7 ~ 1.1 |
| HECU bracket mounting bolt and nut | 16.7 ~ 25.5 | 1.7 ~ 2.6 |
TIGHTENING TORQUES SPECIFICATION
| Items | Recommended | Quantity |
|---|---|---|
| Brake fluid | DOT 3 or DOT 4 | As required |
| Brake pedal bushing and bolt | Chassis grease | As required |
| Parking brake shoe and backing plate contacting surface | Heat resistance grease | As required |
| Front Caliper guide rod and boot | AI-11P | 0.6 ~ 1.1g |
| Rear Caliper guide rod and boot | AI-11P | 0.5 ~ 1.0g |
LUBRICANTS SPECIFICATION
Special Service Tools
Tool (Number and Name) Illustration Use 09581-11000 Piston expander Spreading the front disc brake piston
Scheme 74
Problem Symptoms Table
Use the table below to help you find the cause of the problem. The numbers indicate the priority of the like cause of the problem. Check each part in order.
If necessary, replace these parts.
| Symptom | Suspect Area | Correction |
|---|---|---|
| Lower pedal or spongy pedal | Brake system (Fluid leaks) Brake system (Air in) Piston seals (Worn or damaged) Rear brake shoe clearance (Out of adjustment) Master cylinder (Inoperative) | Repair air bleed replace adjust replace |
| Brake drag | Brake pedal free play (Minimum) Parking brake lever travel (Out of adjustment) Parking brake wire (Sticking) Rear brake shoe clearance (Out of adjustment) Pad or lining (Cracked or distorted) Piston (Stuck) Piston (Frozen) Anchor or shoe (Inoperative) Booster system (Vacuum leaks) Master cylinder (Inoperative) | Adjust adjust repair adjust replace replace replace replace repair replace |
| Brake pull | Piston (Sticking) Pad or lining (Oily) Piston (Frozen) Disc (Scored) Pad or lining (Cracked or distorted) | Replace replace replace replace replace |
| Hard pedal but brake inefficient | Brake system (Fluid leaks) Brake system (Air in) Pad or lining (Worn) Pad or lining (Cracked or distorted) Rear brake shoe clearance (Out of adjustment) Pad or lining (Oily) Pad or lining (Glazed) Disc (Scored) Booster system (Vacuum leaks) | Repair air bleed replace replace adjust adjust replace replace repair |
| Noise from brake | Pad or lining (Cracked or distorted) Installation bolt (Loosen) Disc (Scored) Sliding pin (Worn) Pad or lining (Dirty) Pad or lining (Glazed) Anchor or shoe (Faulty) Brake pad shim (Damage) Shoe hold-down spring (Damage) | Replace adjust replace replace clean replace replace replace replace |
| Brake fades | Master cylinder (Inoperative) | Replace |
| Brake vibration, pulsation | Brake booster (Vacuum leaks) Pedal free play Master cylinder (Inoperative) Caliper (Damage) Master cylinder cap seal Damaged brake lines | Replace adjust replace replace replace replace |
| Brake Chatter | Brake chatter is usually caused by loose or worn components, or glazed or burnt linings. Rotors with hard spots can also contribute to brake chatter. Additional causes of chatter are out-of-tolerance rotors, brake lining not securely attached to the shoes, loose wheel bearings and contaminated brake lining. |