piloted gearbox clutch actuator
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  1. #1
    Member
    Join Date
    Jan 2013
    Location
    geelong
    Posts
    58

    Default piloted gearbox clutch actuator

    hi all

    I recently rebuild my dads piloted gearbox, the shop is reinstalling it and now they are saying the gearbox clutch actuator is faulty

    can someone give me a run down on these, do they fail from being manually handled? can they be jiggled to work? The shop has the diagnostic tool, I don't know how closely they followed the manual (which I have) that dictates how to set the clutch actuator for dismantling and then for reassembly/calibration

    I noticed this

    1.1. Prohibited operations
    Manipulating the clutch actuator via the push rod ( 1). (possible)
    Compressing and releasing the push rod ( 1). (possible)
    Directly supplying the clutch actuator with a 12V supply source.
    Piloting a removed actuator using a diagnostic tool.
    Putting your fingers on the connector contacts (risk of electrostatic discharge).

    I assume that these operations destroy the actuator? is there a common problem that happens from manually pushign the pushrod? as these could be possible.... can it be rectified, or is a new actuator the only solution

    i see that europarts has new OEM actuators for $750 ...

    anyone got a good 2nd hand one cheap?

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  2. #2
    Fellow Frogger
    Join Date
    Jan 2004
    Location
    Sydney
    Posts
    9,774

    Default

    It is possible to dismantle it and grease the internals and also to clean any carbon from the motor, but they do not last forever. The usual symptom of an old actuator is loud creaking. You have to look for wear on the spring loaded parts of the shaft inside and wear on the sector gear where the pinion meshes. Sometimes, the pinion snaps and it then can't be repaired. If you force the pushrod, you are working against what is effectively a worm gear driven by a stepper motor, so that may do damage. However, it obviously has to be robust enough to deal with the clutch spring. There is meant to be an initial setting position, but I can't really offer any comment on this. Take the bottom of and inspect it at least and perhaps ask a dealer to see if they can revive it.

  3. #3
    Member
    Join Date
    Jan 2013
    Location
    geelong
    Posts
    58

    Default

    Thanks for the info David ill pass it on, hopefully don't need a new actuator but I think my dad said the old one did groan a bit or something...

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