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  1. #1
    Elite Member woodlandfarms's Avatar
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    Jul 2006
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    4,271
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    Los Angeles / SW Washington
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    PowerTrac 1850

    Default Cooling fan intermittent

    So, my cooling fan is about to die I think. Ordered a new one from Amazon. Basically it stopped spinning. Spent a long time making sure it was the fan (checked it last, of course). It is a SPAL 14" low profile.

    But of course. I order the new one up (the old one is not spinning) and put the old one back on. Decide to spray it with WD40 and give it a love tap or two with a hammer and it is working like a charm.
    Power-Trac 1850, grapple, hoe, 90" mower, 72" box blade

  2. #2
    Super Star Member J_J's Avatar
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    Sep 2003
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    17,367
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    JACKSONVILLE, FL
    Tractor
    Power-Trac 1445, KUBOTA B-9200HST

    Default Re: Cooling fan intermittent

    Your problem could have been wiring or temp switch.

    I replaced my hyd cooling fan with an auto radiator fan. About $20 to $30.
    J.J.

    When I works, I works hard. When I sits and thinks, I goes to sleep.

    Git er done.

  3. #3
    Veteran Member
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    Jun 2006
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    2,133
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    West Cascades Washington State
    Tractor
    PT 422

    Default Re: Cooling fan intermittent

    I've found them at auto wrecking yards.

  4. #4
    Elite Member BobRip's Avatar
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    Sep 2004
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    4,263
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    Powhatan Va.
    Tractor
    2000 Power Trac 422

    Default Re: Cooling fan intermittent

    I Have had the fuse holders become intermittent. Check this.
    Bob Rip
    Tell me and I will hear.
    Show me and I will see.
    Let me do and I will learn.
    Let me fail and I will understand.

  5. #5
    Gold Member American Bulldog's Avatar
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    Honesdale, PA

    Default Re: Cooling fan intermittent

    Quote Originally Posted by J_J View Post
    Your problem could have been wiring or temp switch.

    I replaced my hyd cooling fan with an auto radiator fan. About $20 to $30.
    That's a good price, but the Spal fans on the larger PT's already are Auto radiator fans. I have a feeling that they were not particularly designed to be mounted flat, and may have less life because of it. I have gone through a fan on my 1460, and it only has about 200 hours on it.

    I changed the wiring so that the temp switch goes to a starter relay, which then turns on the fan. The temp switches are improperly used on these tractors.
    Deere 5520, Deere 450H Dozer, Power Trac PT1460, Ventrac 4231 Turbo Diesel, Deere Z-Track 757, Ferris 3100Z 6 foot deck. Never too many toys!

  6. #6
    Elite Member woodlandfarms's Avatar
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    4,271
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    Los Angeles / SW Washington
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    PowerTrac 1850

    Default Re: Cooling fan intermittent

    Meaning you wired a relay into the fan circuit as the temp switch us underrated for the amperage of the fan?
    Power-Trac 1850, grapple, hoe, 90" mower, 72" box blade

  7. #7
    Gold Member American Bulldog's Avatar
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    Honesdale, PA

    Default Re: Cooling fan intermittent

    Quote Originally Posted by woodlandfarms View Post
    Meaning you wired a relay into the fan circuit as the temp switch us underrated for the amperage of the fan?
    Yep..... It should last forever now....

    Deere 5520, Deere 450H Dozer, Power Trac PT1460, Ventrac 4231 Turbo Diesel, Deere Z-Track 757, Ferris 3100Z 6 foot deck. Never too many toys!

  8. #8
    Veteran Member
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    Jun 2006
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    2,133
    Location
    West Cascades Washington State
    Tractor
    PT 422

    Default Re: Cooling fan intermittent

    nice job on the starter/fan relay.

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