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  • mrbitchi
    Valued Member
    • Jun 2007
    • 3577
    • Brisbane

    Brake Fluid change ABS Brakes

    Need to put new pads in the NM and it's due for a fluid change as well. Trying to get my head around the procedure in the manual..

    Front calipers and Accumulator seem pretty straight forward. The rear calipers.. does that mean that simply holding down the pedal, with the ignition on, will use stored pressure in the Accumulator to push the fluid through?

    Also, the inner left front pad has worn much more than any other, yet the guide pins seem free enough..

    And does anyone know what size tube fits over the drain nipples??

    (From the manual)

    HBB SYSTEM AIR BLEEDING
    If all the brake fluid inside the reservoir is drained due to
    the removal and installation of the HBB, bleed air as follows:
    Air bleeding from front brake system
    1. Turn the ignition switch to the LOCK (OFF) position. Bleed
    air from the front brake calipers (right and left) by pumping
    the brake pedal.
    Pump motor operation
    2. Turn the ignition switch ON, and operate the pump motor.
    If the pump motor is running free, supply the brake fluid
    into the pump motor by depressing the brake pedal three
    or four times.

    Air bleeding from accumulator system
    3. After the pump motor stopped, depress the brake pedal
    three or four times with the ignition switch ON. Then
    observe the brake fluid in the reservoir. If the brake fluid
    looks whitish, wait for a few minutes until it becomes
    clear.
    4. Repeat step 3 until the brake fluid becomes clear.

    Air bleeding from rear brake system
    5. While the ignition switch is turned ON and the brake
    pedal is depressed, bleed air from the right and left rear
    brake calipers.
    Caution
    (1) If too much brake fluid is drained at a time, the
    accumulator pressure may be dropped
    abnormally. So limit drain amount at a time to
    100 cm3 or less, and check that the pump motor
    stops per one air-bleeding.
    (2) If the brake fluid level in the reservoir has been
    dropped, air may enter the pump motor
    accidentally. To avoid this, always maintain the
    brake fluid between the MIN and MAX marks.

    Air bleeding from power supply system
    6. Turn the ignition switch to the LOCK (OFF) position.
    Depressurise the HBB power supply system by depressing
    the brake pedal several times until the braking effort
    becomes high.
    7. Turn the ignition switch ON, and depress the brake pedal
    quickly twenty times. Then check that the pump motor
    stops.
    8. Turn the ignition switch to the LOCK (OFF) position.
    Depressurise the power supply system of the hydraulic
    brake booster (HBB) by depressing the brake pedal until
    the pedal effort becomes high.
    9. Then turn the ignition switch ON, and then operate the
    pump motor. The pump motor should stop within 25
    seconds. If the pump motor does not stop, bleed air from
    the power supply system again (see steps 6 - 9).
    Cheers, John.
    LC200 V8 goodness

    MY12 LC200 GXL 4.5Lt V8 twin turbo, GVM upgrade, ARB bar, Warn winch, Outback Acc rear bar and dual carrier, TJM sidesteps, Bushskinz, Long Ranger 180Lt tank, Black Widow drawers, cargo barrier, Polaris Awning, +++
    Ex - NM auto, 2"Kings, Bilsteins, Buckshots, Wildcat headers, 2.75" Mandrel bent exhaust, Injected LPG, Smartbar, Scraper bar, Bushskinz, Custom steps, Dual Batteries, Breathers, Black Widow drawers, Polaris Awning.
  • mrbitchi
    Valued Member
    • Jun 2007
    • 3577
    • Brisbane

    #2
    Bump....

    Anyone???
    Cheers, John.
    LC200 V8 goodness

    MY12 LC200 GXL 4.5Lt V8 twin turbo, GVM upgrade, ARB bar, Warn winch, Outback Acc rear bar and dual carrier, TJM sidesteps, Bushskinz, Long Ranger 180Lt tank, Black Widow drawers, cargo barrier, Polaris Awning, +++
    Ex - NM auto, 2"Kings, Bilsteins, Buckshots, Wildcat headers, 2.75" Mandrel bent exhaust, Injected LPG, Smartbar, Scraper bar, Bushskinz, Custom steps, Dual Batteries, Breathers, Black Widow drawers, Polaris Awning.

    Comment

    • brianwanless
      Valued Member
      • Dec 2008
      • 569
      • Mackay Nth Qld

      #3
      If you still have fluid in the master cylinder tank, just let the system dribble bleed. It is not a good idea to let the reservoir run dry. By dribble bleed I mean undo the nipple on the right front caliper and let the fluid dribble out, the should happen when you undo the nipple a couple of turns, if not, it might be blocked, clean it out with a bit of wire. You may have to give the brake pedal a light tap to get the fluid flowing. Then keep the reservoir topped up till the fluid runs clean. Then do the left front and right rear then left. You do not need the engine running. Dont get brake fluid on your paint work and when you are finished hose off all fluid with plain water. Hope this helps.
      NP did, auto, mags, aux tank, bullbar, hid spots, leds, uhf, engine watchdog, safari chip, anderson plug, fridge socket, gps, snorkel, airbags, sidesteps, dual batteries, hr towbar, brake controller, torque convertor lockup switch, slotted discs, stainless braided brake hoses, led rev lights.

      Comment

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