Contents Section: Mechanical - Hydraulic All sections

Basic Brake System: Component Locations Mitsubishi Eclipse IV рестайлинг

Mechanical - Hydraulic 10 illustrations ~737 words

SPECIAL TOOLS

SPECIAL TOOLS CHART TOOL TOOL NUMBER AND NAME SUPERSESSION APPLICATION MB991568 Push rod adjusting socket General service tool Adjustment of the brake booster push rod protrusion amount MB990964 Brake tool set MB990520 Disc brake piston expander MB990620-01 or general service tool Pushing-in of the disc brake piston

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Scheme 24: SPECIAL TOOLS

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Scheme 26: BRAKE PEDAL HEIGHT

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Scheme 27

Scheme 28

Scheme 28
  1. Turn up the carpet, etc. under the brake pedal.
  2. Measure the brake pedal height as illustrated. Standard value: 169.8-172.8 mm (6.69-6.80 inches) [From the surface of dash panel to the face of pedal pad]
  3. If the brake pedal height is not within the standard value, follow the procedure below. Disconnect the stoplight switch connector. Remove the brake booster (Refer to «MASTER CYLINDER ASSEMBLY AND BRAKE BOOSTER»(ref-308286-S16846356002009020200000) ). NOTE: With the master cylinder and brake pipe connected, remove the brake booster only. Adjust the brake pedal height by turning the clevis. NOTE: When the clevis is turned 180 degrees, the pedal height is changed by approximately 2.2 mm (0.09 in). Install the brake booster (Refer to «MASTER CYLINDER ASSEMBLY AND BRAKE BOOSTER»(ref-308286-S16846356002009020200000) ). Measure the brake pedal height, and ensure that the measured value is within the specified value. If it is out of the specified value, repeat Step (3) - (6). Screw in the stop light switch until its thread contacts the stopper, then turn it approximately one quarter of a turn clockwise. Check that the clearance between the stop light switch and the stopper is as shown. CAUTION: Check that the stop light does not illuminate when the brake pedal is not depressed. Connect the connector at the stop light switch.
  4. Check the key interlock and shift lock mechanisms. (Refer to On-vehicle Service - «KEY INTERLOCK AND SHIFT LOCK MECHANISM CHECK»(ref-308272-S16849261412009020200000) ).
  5. Return the carpet, etc. to its original position.

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Scheme 29: BRAKE PEDAL FREE PLAY
  1. Turn the ignition switch to the "LOCK" (OFF) position, and depress the brake pedal two or three times. After eliminating the vacuum in the brake booster, press the pedal down by hand, and confirm that the amount of movement before resistance is met (free play) is within the standard value range. Standard value: 3-8 mm (0.12-0.31 inch)
  2. If the brake pedal play is not within the standard value, check the following, and adjust or replace if necessary: Excessive play between the brake pedal and the clevis pin, or between the clevis pin and the brake booster operating rod Brake pedal height Installation position of the stop light switch, etc.

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Scheme 30: CLEARANCE BETWEEN BRAKE PEDAL AND DASH PANEL
  1. Turn up the carpet, etc. under the brake pedal.
  2. Start the engine, depress the brake pedal with approximately 500 N (112 pounds) of force, and measure the clearance between the brake pedal and the dash panel. Standard value: 110 mm (4.33 inches) or more [From the surface of dash panel to the face of pedal pad]
  3. If the clearance is outside the standard value, check for air trapped in the brake line and check the thickness of the disc brake pad. Adjust or replace defective parts as required.
  4. Return the carpet etc. to its original position.

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Scheme 31: BRAKE BOOSTER OPERATING TEST

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Scheme 33
  1. For simple checking of the brake booster operation, carry out the following tests: Run the engine for one or two minutes, and then stop it. If the pedal depresses fully the first time but gradually becomes higher when depressed succeeding times, the booster is operating properly. If the pedal height remains unchanged, the booster is defective. Go to step 2. With the engine stopped, step on the brake pedal several times. Then step on the brake pedal and start the engine. If the pedal moves downward slightly, the booster is in good condition. If there is no change, the booster is defective. Go to step 3. With the engine running, step on the brake pedal and then stop the engine. Hold the pedal depressed for 30 seconds. If the pedal height does not change, the booster is in good condition, if the pedal rises, the booster is defective.
  2. If the above three tests are okay, the booster is OK. If one of the above three tests is not okay, the check valve, vacuum hose, or booster is defective. Check the check valve (Refer to «BLEEDING»(ref-308286-S12990466342009020200000) ), vacuum hose for leaks, high volume engine vacuum applied to booster. Repair or replace as necessary. If these are OK, replace booster and repeat this test starting at Step 1 .