92Rocky-BR-Brake_System-Part1
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PART 1 - PART 2 - PART 3 - PART 4 - PART 5 - PART 6 - PART 7 - PART 8 - PART 9
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DAIHATSU Rocky
BRAKE SYSTEM
OUTLINE OF BRAKE SYSTEM BR- 2 CHECK OF BRAKE SYSTEM BR-15 BRAKE PEDAL BR-20 FRONT BRAKE BR-26 REAR BRAKE BR-39 BRAKE MASTER CYLINDER BR-53 BRAKE BOOSTER BR-61 PARKING BRAKE BR-79 P & B VALVE (PROPORTIONING AND
BY-PASS VALVE) BR-87
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BRAKE SYSTEM
OUTLINE OF BRAKE SYSTEM
1. The brake line employs a conventional piping.
The brake tube is a double winding steel tube. As corrosion preventive measures, galvanizing plus fluoridate resin coating is applied to the outside of the brake tube. The brake line comes in two kinds: One is for those vehicles equipped with the standard brake and the other is for those vehicles equipped with the Rear ABS. 2. On the Full-time 4WD vehicle, the rear-ABS ls available as optional equipment. This system prevents the rear wheels from being locked in the event of hard braking application by controlling the hydraulic pressure applied to the wheel cylinders of the rear wheels.
Master cylinder P & B Valve
Brake actuator
Standard brake
Master cylinder
P & B valve
Rear ABS equipped vehicles
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BRAKE SYSTEM
PEDALS
AH the operating pedals, such as the clutch pedal, accelerator pedal and brake pedal, adopt a hanging type whose pedal frllcrr rm is provided at the pedal support located upward of each pedal.
(A) Clutch pedal (B) Brake pedal
Pedal-related specifications
mm (inch)
_ _ Clutch Pedal mstallatnon
height
Brake
211 - 221 (8.307 - 8.701)
Measured with dash board vertical wall as refer
ence. Measured from dash board steel sheet with si
lencer turned over.
Clutch
148 - 156 (5.827 - 6.142)
Stroke Brake
Accelerator
(Accelerator pedal) Adjust in such a way that stopper bolt-to-pedal stopper clearance becomes O to 3 mm (O to 0.118 inch) when throttle valve is opened fully.
Clutch
Pedal free travel Brake
1 - 3 (0.034 - 0.118)
Accelerator
1 - 5 (0039 - 0.197)
(Brake pedal) With epgine stopped, depress brake pedal
strongly several times so that vacuurri no longer exists inside brake booster. Measure free travel
by pushing pedal lightly with your fihgevr.
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BRAKE SYSTEM
FRONT BRAKE CALIPERS
For stable braking forces during high-speed running, the disc brake is standard equipment on all models. The brake pad material employs non-asbestos. Furthermore, the brake disc pad has a wear indicator which tells the driver the pad needs replacement (When the remaining thickness of the pad becomes less than 1.5
mm (0.06 inch)).
CE" Y
CHIP
Disc rotation direction during forward movement
11.0101' _
Wear indicator (inner pad only)
Wear indicator (inner pad only)
NOTE:
The illustration shows the left side typically. The right side is symmetrical with the left side.
Disc brake pad specifications
Pad thickness
mm (inch)
Lining area
48.6 (313.6)
Materials
AK NS101 (Asbestos-free)
Front brake caliper specifications
Diameter
mm (inch)
Cylinder
Area
22.89 (3548)
Brake effective radius
mm (inch)
Thickness
mm (inch)
Pad I Area
48.6 (313.6)
Materials
AK NS101 (Asbestos-free)
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BRAKE SYSTEM
FRONT DISC ROTORS
The front disc rotor employs a solid type dlso rotor on all models.
Front disc rotor specifications
Disc rotor outer diameter m
m (inch) j 277 (10905)
Disc rotor thickness mm (inch) 12.5 (0.49)
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BRAKE SYSTEM
REAR BRAKE
The rear brake is a leading and trailing type, in which the virtually same braking effectiveness can be attained
both during the forward and reverse movement ofthe vehicle.
The parking; brake is built inside the rear brake system, where the automatic adjuster ofthe rear brake shoe
functions when the parking
brake Iever is actuated.
The illustration shows the right side typically
except for the wheel cylinder section.
Rear brake specifications
Lining dimensions mm (inch) I 265.9 44.0 5.0 (10468 x 1.732 0.197)
Materials I AK L61O (asbestos-free)
Brake drum inner diameter mm (inch) | @3254 (d>10)
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BHEAKE SYSTEM
BRAKE BOOSTER & MASTER CYLINDER
The brake booster employs a direct acting brake booster having an 8-inch effective diameter in order that the pedal applying force may be reduced during the braking and the braking performance may be improved. The master cylinder is an aluminum alloy tandem master cylinder located inside the engine compartment. The reservoir is a sealed type incorporating a diaphragm. ln this reservoir, the brake fluid is shut from the atmosphere, thus preventing deterioration ofthe brake fluid and improving a reliability.
Brake booster
Diaphragm effective diameter mm (inch)
203 (8.0)
Effective storke mm (inch)
31.5 or more (1.240 or more)
Servo ratio
3.5
Jumping amount kgf (lb)
10 (22.05)
Master cylinder
From mm (men) | Stroke
18.5 (0,728)
. | Rear mm (inch)
11.5 (O.453)
Inner diameter mm (inch)
Front
Reserve tank capacity
I Rear
12 (0732)
Portion shared in common I
114 (6956)
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BRAKE SYSTEM
VACUUM HOSE
The vacuum hose provided between the engine suction system and the brake booster incorporates a check
valve.
The vacuum hose bears a letter “ENGINE The arrow headed direction must face toward the engine side.
Check valve
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BRAKE SYSTEM
PARKING BRAKE
The parking brake is a mechanicaiiy-operated, rear wheel braking type. The parking brake lever is located at the center between the right and left front seats. The cable adjustment method employs a center iever type which can be adjusted from the under the vehicle.
Parking brake specifications
Type
| Mechanically-operated, wheel braking type
Braked wheel
Two rear wheels
Area
Ummg | Materials
Dimensions
Brake drum inner diameter
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BRAKE SYSTEM
Operation of automatic adjuster The automatic rear brake shoe clearance adjuster is activated when the parking brake is operated. As shown in the figure below, the adjusting lever is secured to the parking brake lever. This adjusting lever holds the adjuster teeth, thus locking it in place. The adjusting lever acts in such a way that it causes the adjuster teeth to advance when the parking brake is applied. If the shoe clearance is normal, the amount of movement ot the adjusting lever is not great enough to move one tooth of the adjuster. However, it the lining is worn and the shoe clearance is great, the lever operating angle is great, too. As a result, the amount of movement of the adjusting lever is great enough to cause the adjuster to advance one tooth, thereby maintaining a normal shoe clearance at all times.
Adjusting lever
---4------Lu------u--1
Parking brake lever
