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Ferris Hydrowalk 52 drive belt problem

Discussion in 'Mechanic and Repair' started by philmcathey, Aug 28, 2011.

  1. philmcathey

    philmcathey LawnSite Member
    from UK
    Messages: 3

    Hi, can anyone tell me the part number I need to replace the drive belt on my old Ferris Hydrowalk Dualdrive 52, serial number: DDS61BVE 921, Engine number 350777 Briggs & Stratton 18hp engine? I recently bought a belt with part number 5022173 which seems to be too long by approximately 3-4" as I cannot get the belt to tighten. Thanks for any help..
  2. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    Last edited: Aug 28, 2011
  3. philmcathey

    philmcathey LawnSite Member
    from UK
    Messages: 3

    Hi, thanks for the link. The parts manual confirms that the part I have seems to be the correct number. I cannot see a different way of routing the belt as I have followed the diagram for my mower. Is there a way of adjusting the tensioning spring? Are there different length belts for 52" mowers? Thanks again.
  4. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    Question time;

    It's the hydro drive belt giving the issue right ?

    Do you have the old belt to compare length to the new one ?

    Do you have two hydro pumps and two idler pulleys in this system or single hydro transaxle and one idler pulley ?

    If two idler pulleys are they both the same size and height ?

    It's possible someone replaced the idlers with "will work parts" and put the wrong belt on to account for it.

    To answer your question; I only see the one belt number listed that your trying to install, It should measure 1/2" wide 63" in length. That same number fits the CC models as well. Both the engine and hydros mount in one place on the frame, I would be checking new belt length (could be packaged wrong) idler pulleys and tension arm for free movement then tension spring for weakness/being stretched.

    With the spring off can you move the idler arm over far enough to get tension on the belt ?

    This is about as far as I can go without being able to lay eyes on this thing.......
  5. pugs

    pugs LawnSite Gold Member
    Messages: 3,025

    The part number you need is 5021427. Its about 62.5" or so. Part number 5022173 is used on serial numbers 1233 and up I believe and is about 66.5" long.

    Actually your model number says to use 5021427 in partsmart so your manual must be for a different serial number range or something.

    Ferris model numbering and parts lookup leaves a bit to be desired...and when I say bit I mean a huge heaping pile.
  6. Sharpcut 1

    Sharpcut 1 LawnSite Senior Member
    Messages: 452

    Ran into the same problem, ended up using a 1/2 x 63" belt. The Ferris belt was almost 4" too long. Have fun putting it on:dizzy:
  7. philmcathey

    philmcathey LawnSite Member
    from UK
    Messages: 3

    Hi all, yes you are right, my machine is and earlier model which does use the shorter belt and hence different part number. I have phoned the supplier who is now sending the correct one. And yes, I'm not looking forward to putting it on! Thanks for all the help guys. Regards, Phil

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