LIEBHEER 634 HYDRAULIC

    Installation, configuration and testing of the drive are not things you can do at the mercy of chance. The work is so much more than I can describe. However, with the traction we're almost done, here some pictures right after installation, still lacking electronics and everything else.
    The two brushless motors coupled with carefully chosen are thrilling.
    The thrust is sileziosa and follows regimes ever exasperated, he feels more air than the rest. The power is very satisfying.
    The motors do not even get warm. ( 400ncm)
    As calculated, the maximum speed is exactly half that of the real scaled 1:14,5.
    The caterpillars are a bit of revelry and emit the same squeaking of crawlers real. Lust to my ears.


    Directly next to the pump .... this.
    Spaces are very limited, it was not easy to get us a 2° fan, but the benefits will be great.
    During the test, the oil temperature was maintained markedly lower.
    and .. we are 2 cooling fans ..... and little space, and warm .... problem solved ...

    fan n 2

    fan n1

    :D:D

    Due to the small cylinder bore of the cylinders of the lifting-arm, to achieve considerable forces, in the 634 you need to work at pressures remarkable, even beyond the 30 bar.
    Working pressures of this type of small pumps necessarily implies an electronic management of the hydraulic
    I, frankly, I can not imagine a small pump that turns at 30 - 32 bar constant, without management logic. Energy consumption, overheating, stress and wear for the plant would be considerable.
    Discarded for obvious reasons (among the first precisely consumption, stress and realism) solution Automatic ON-OFF, I did make my Tuner by a control unit, MOP V2T.
    Here are ready and tested

    ETTING to 95%


    - Idle speed.
    Sensitivity symmetric 0% - 1% for each movement. Engine speed 400 RPM C.ca. Minimum insertion automatically after 2 seconds of non-use of all hydraulic consumers.
    This is a very useful feature of a crawler, where the intervals of TRANSLATION may be frequent and also long.

    - Rules for maintenance.
    Sensitivity symmetric 7% for each movement. C.ca engine speed 4500 RPM. Inserting automatic maintenance on demand hydraulic power of each single user mode and return to work after 0.5 seconds of not requiring hydraulic power to all utilities.

    - Scheme of work.
    Sensibility asymmetric 25% - 30% on diversified utilities. C.ca engine speed 7200 RPM. Auto-Arming on demand work on behalf of each user and hydraulic return from activation determined by the load sensor with hysteresis of 0.5 bar pressure and time of 0.5 seconds.

    - Scheme turbo.
    Sensitivity asymmetrical 25% - 30% on diversified utilities. C.ca engine speed 10000 RPM. Capacity-turbo 0%. Switching on / off automatic request of the load sensor with hysteresis of 0.5 bar pressure and time of 0.5 seconds.

    - Sensor Adjustment equivalent loading C.ca kg. 5.5 of the bucket.

    - Inertia motor acceleration 45%

    - Inertia decelerating motor 25%

    - Recovery of inertial booms falling.

    NEWS...

    Your filter is ready.

    He stole a bit of time, but now that I started with this idea, I wanted to finish it properly.

    The red line shows the headquarters will be located where the system fails to return the impurities.

    The size is slightly more than half of the filter Leimbach, while the filtering capacity is higher and resistance crossing is less

    The hex key 13 allows for a rapid and effective opening and closing.

    he M5 fittings contribute to a free-flowing and abundant.

    No 'other news is that the filter does not necessarily require cleaning with solvents and blowing, but will be equipped with removable and replaceable cartridge. Operation much easier and faster.
    The cartridge has a remarkable longevity and very low cost. Furthermore, although the replacement is the most effective solution, if you want to proceed in a traditional way, the cartridge can still be cleaned with solvent and reused for a number of times.
    The cartridge does not contain filter paper.

    ALL PHOTOS OF 634
    you begin to work hard!

    The layout of the plant is divided into 4 levels.

    - Level 1 = hydraulics, electronics 1, traction engines and transmissions.
    - Level 2 = Guides cables and guide branch gauge.
    - Level 3 = main battery and the auxiliary battery, electronics and 2 gauge.
    - Level 4 = Branching and cabin lights.

    The main levels, separated from each other by a steel plate, are l '1 and 3.
    2 and 4 are separated only in part, as "false floors".

    This is the level 1:

    The tube "stray" salt through the level to reach 2 to 3 the pressure gauge and connect to it.


    And this is the level 3:



    the second level and incomplete .... for reasons of final assembly,
    At short all the beauty of the medium and its hydraulic operation.

    bravo, die läuft mal richtig gut,.... :respekt:

    und mit den Filmchen habt ihr euch richtig Mühe gegeben :gut:

    Nur der Smoker,.... hm,... vielleicht noch einen lastgesteuerten kleinen Ventilator ins Auspuffrohr einbauen, dann wäre es realistischer und dann vielleicht noch schwarzen Rauch erfinden :warsnicht:

    Dank Tommy
    Sie waren sehr freundlich,
    wie schwarzer Rauch zu machen?
    ich nicht.


    thanks Tommy
    you have been very kind,
    how to make black smoke?
    not .....


    :D::Danke1::DD:;);)

    This time I am dedicated to cleaning by dry leaves piled up ... with grass and more ....
    here too the 634, worked well ...... not push you do not go anywhere .....
    it all seems easy ... it seems ......
    01-Stern:D:


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