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Thread: Manitou MLT 527 - brakes wont bleed

  1. #1
    Junior Member
    Join Date
    Jul 2016
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    4

    Manitou MLT 527 - brakes wont bleed

    Hi,
    Over the past couple of days, the brakes have slowly got worse an worse, so had a look at it today.

    Checked the fluid and it looked like someone had put dot 4 in it, so we flushed all the old fluid out and replaced with new lhm and it wouldn't bleed. So took the master cylinder off and took it apart and the seals look fine it.

    So put it back together, bench bled it then put it back on and it still wont bleed. The fluid just doesnt go down in the reservoir.

    Ive took the brake pipe off the master cylinder and nothing comes out of it and the fluid doesnt go down.

    Anyone got any ideas what it could be ?? I was going replace the master cylinder but it only looks about 6 months old and looks as new inside

    Thanks

  2. #2
    Senior Member ACE's Avatar
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    Feb 2013
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    Oxfordshire
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    Re: Manitou MLT 527 - brakes wont bleed

    Quote Originally Posted by E5c0rt.mk1 View Post
    Hi,
    Over the past couple of days, the brakes have slowly got worse an worse, so had a look at it today.

    Checked the fluid and it looked like someone had put dot 4 in it, so we flushed all the old fluid out and replaced with new lhm and it wouldn't bleed. So took the master cylinder off and took it apart and the seals look fine it.

    So put it back together, bench bled it then put it back on and it still wont bleed. The fluid just doesnt go down in the reservoir.

    Ive took the brake pipe off the master cylinder and nothing comes out of it and the fluid doesnt go down.

    Anyone got any ideas what it could be ?? I was going replace the master cylinder but it only looks about 6 months old and looks as new inside

    Thanks
    Bleed it down at the axle and get all that dot4 out it will in time eat the seals.
    Needs 2 people ideally. Undo bleeder press brake pedal down tight bleed nipple and release pedal then repeat.

    Or back bleed it so undo nipple on axles and pump fluid in pushing all air back in to the pot in cab.

  3. #3
    Junior Member
    Join Date
    Jul 2016
    Posts
    4

    Re: Manitou MLT 527 - brakes wont bleed

    Finally got it bled this morning, back bled it from the axle yesterday and it wouldnt work, did it again today and it worked first time

    Thanks

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