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  1. Sychronous belt conversion 
    #1
    Senior Member pewamo758's Avatar
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    pewamo, michigan
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    All;

    I just finished converting my E12s from v-belt to sychronous belt/pulley drive. This project was done as more of a curiosity and an expirement than a necessity with excellent results.

    The pulleys and bushings were purchased on ebay for about $60. The timing belt came from Applied Industrial Technology's for $22.....$10 cheaper than Motion Industries.

    I choose "H" series 1/2" pitch 1" wide equipment as per the belt/HP chart in the Machinery's Handbook pg 2330.

    The motor pulley is a 20H100SH mounted on the shaft with a 7/8" "SH" bushing. The transmission pulley is a TL26H1002012 mounted to the shaft with a 3/4" 2012TL "taper Lock" bushing. This gives a drive ratio of .77, just slightly higher than the stock ratio of .75.

    The motor pulley was installed first, with about .125" between the motor housing and the pulley. On the transmission end, that pulley was lined up with the motor pulley using a straight edge, and then tightened down.

    If I were to do this again, I would probably go with a 3/4" wide belt and a taper lock bushing on the motor. This would allow more clearance from the frame and make alignment of the pulleys eaiser.

    Tom
    Pewamo758
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  2. Re: Sychronous belt conversion 
    #2
    Senior Member
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    Pewamo,

    Nice job. Good looking setup.

    Thanks for the post and pictures.

    DC Forever.
     
     

  3. Re: Sychronous belt conversion 
    #3
    Senior Member housewiz's Avatar
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    Hey Tom,

    OK, let's talk mechanical stress. I would imagine the stock belt slippage in an indirect way protects the axles, gears, etc. from "unauthorized" stress and possible ultimate damage. Just guessing on that theory as I have never put a Peerless 2318 to the test - however one day I plan on just that.

    Did you consider what the extra traction/strain would do to the drive train? One ET repairman told me he has seen an E20 on more than one occasion damage ie. "twist" an axle.

    Now that I have a couple of spare Peerless 2318 transaxles, would you consider sourcing all those parts for someone, like me? Compensation for your time would be included.

    Steve
     
     

  4. Re: Sychronous belt conversion 
    #4
    Senior Member Jerry71's Avatar
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    Steve, Tom, John, all, the last time I talked with the mgr (Ted) of the eng'g parts dept at PeerLess , they still had parts to build about 40 2318 trannys, might be short gear. He said you just need to push the dealer to push the order thru the system, I'll see if I can find the phone #

    Jerry NW Ohio
    ETC...
     
     

  5. Re: Sychronous belt conversion 
    #5
    Senior Member
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    Jerry,

    Do you remember any of the details of the cog belt drive setup used on the METI tractor for comparison to Pewamo's setup.

    Thanks.

    John
     
     

  6. Re: Sychronous belt conversion 
    #6
    Senior Member housewiz's Avatar
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    Jerry,

    How about talking to the same guy about building the 2317 "Duo-Trak" that came on the JD 112 (I think)??

    Steve
     
     

  7. Re: Sychronous belt conversion 
    #7
    Senior Member
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    Nixa, Missouri
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    Tom,

    Thanks for sharing. Hoping to do a similar conversion in the future along with a D&D motor.

    Not saying it would always prevent damaging an axle, but there is a shear key between the axle and hub. Guess it would be a good idea to ensure the hub is not froze to the axle. I've seen a 20 ton press struggle with removing a hub...
     
     

  8. Re: Sychronous belt conversion 
    #8
    Senior Member Jerry71's Avatar
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    Good Morning Guys, here is a pic of the setup on one of the METI prototypes

    Jerry
    ETC...
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  9. Re: Sychronous belt conversion 
    #9
    Senior Member darn coyote's Avatar
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    Western New York
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    Hi Jerry - I noticed that the specs on the METI website state that you use a Peerless 3 speed transaxle with locking differential - did you have a supplier for new transaxles, or did you locate a stock of new old stock (n.o.s.) ones? What model Peerless are they? Thanks. Coyote
     
     

  10. Re: Sychronous belt conversion 
    #10
    Senior Member
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    May 2006
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    Nixa, Missouri
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    Coyote,

    The METI transaxle was a specialty transaxle built in limited numbers by Peerless. The model number is 855.002.

    Not sure if the current owner of METI has any plans to make them available anytime soon. It is my understanding he is still slowly moving ahead with production plans.

    I do have one NOS METI transaxles in storage. Unsure of my plans for it. If anyone is seriously interested, for the right offer, I might part with it. Just be prepared, they weren't cheap...
     
     

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