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Man TGA - Step-by-Step Guide for Bleeding Gear Lever in MAN TGA Truck

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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16982353
    TGA12
    Level 2  
    Hello. I need step-by-step instructions on how to bleed the gear jack in a Mana?
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  • #2 16983954
    kakibara
    Level 34  
    What has changed in the layout that you want to vent?
    Is the selector covering the cover dry?
    Do you have O-ring on the right side of mechatronics?
    Check if all valves are turned on - on mechatronics.
    Is liquid leaking from under any valve? - it is loose from the inside, if so.
    Of course, it is flooded with the correct non-dot-hydraulic fluid.
    You need to connect under the external nipples in the mechayronics to the liquid tank (the same method as you bleed the clutch pump) you give the pressure 1.5-max 2 bars, unscrew one nipple from the top of the mechatronics and you give the jack with as much as I remember correctly - you look for slack - you need to feel how the fluid overflows the jack - if it gets stiff it is ok.
    Now, aside to the left, unscrew the rear nipple and look for gear 1 -2 with the jack - you do everything at a slow pace.
    And ready you are enjoying your further ride.
    More pressure will overflow your fluid and you will not bleed the system.
    Of course, you give the fluid under pressure from the mechatronics side
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  • #3 16984689
    qruq03
    Level 16  
    At one time, when I was looking for information, I came across such a document. Here from a Mercedes, but if I associate it correctly, it's analogous. As a colleague wrote, remember the right fluid. If you are not sure, enter the original number from the selector - we will check.


    And description taken from another forum:
    Quote:
    Easiest and fastest? Two hoses from the fluid reservoir to both cylinders. Connect the ventilation hose under the hood with the liquid collection container. Set actuators in neutral position, release all vents 0.5-1 turn and introduce fluid under 2-2.5 bar pressure. During this time, move the jack to each end position until the outflow of air bubbles stops. set jack to N, close vent,
    drive in all directions for pressure compensation. End. :)
    With a large bank, after such a refurbishment as you wrote, you should have a supply of 3-4 liters of fluid for the procedure. If you run out and release a bit of air, you have a job from scratch.
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  • #4 16984768
    Cobrat
    Level 22  
    Here you typically have ZF'ki, Titan liquid for Mana, if DOT / DOT + was mistakenly flooded, vain venting - seals burst ...

    link
  • #5 16989741
    TGA12
    Level 2  
    thanks Colleagues for help but I still have a question if there is a difference if I can connect the air hose to the expansion tank or do I need a vent from below? Regards
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  • #6 16989800
    kakibara
    Level 34  
    Hi, of course there is a difference you only push from behind.
  • #7 16990910
    darfur5
    Level 35  
    TGA12 wrote:
    can I connect the air line to the expansion tank or do I have to use a breather from below?
    The air is connected to the container with the liquid, i.e. to the tool you will use when bleeding the system.
  • #8 16992044
    Cobrat
    Level 22  
    I added a link with illustrations (maybe not the latest ones), you can see everything nicely, take a look ;)

Topic summary

The discussion provides a step-by-step guide for bleeding the gear lever in a MAN TGA truck. Key steps include checking the layout and ensuring the selector cover is dry, verifying the presence of an O-ring on the mechatronics, and ensuring all valves are open. The correct non-DOT hydraulic fluid must be used. The bleeding process involves connecting to external nipples on the mechatronics, applying pressure of 1.5 to 2 bars, and carefully unscrewing the nipples to allow fluid to overflow, indicating successful bleeding. The importance of using the right fluid is emphasized, with warnings against using DOT fluids that could damage seals. A follow-up question addresses the difference between connecting an air hose to the expansion tank versus venting from below, confirming that the latter is necessary for effective bleeding.
Summary generated by the language model.
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