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  • Girrard Sensor broken(2)

    Posted by Dorel on June 9, 2015 at 11:57 am

    Hello, looking to replace couple sensor cups, will this purchased from Davis, pn7905L work? What is the size of the 2000 Girrard shaft ? i cannot get on the roof to measure yet…ordered the ladder last week, just trying to be proactive. Thx

    Dick replied 11 years, 3 months ago 7 Members · 11 Replies
  • 11 Replies
  • Larry & Diane

    Member
    June 9, 2015 at 3:02 pm

    From a old posting of mine a year ago:

    I found this cup assembly works perfectly.


    Davis Large Wind Cups For Vantage Pro2 (7905L), from Weathershack.com



    The hole is a bit small and will need to be reamed out to accommodate the Girard shaft. I did that in two steps on a drill press in order to keep the hole in perfect center and alignment. Final drill size was 11/64!



    Remove the setscrew before reaming the hole.



    Total cost including shipping; $174 and 15 minutes of my time.

  • Dorel

    Member
    June 9, 2015 at 6:38 pm

    Thank you very much,

  • Dale

    Member
    June 9, 2015 at 8:02 pm

    Dorel,

    Check my post here, I now carry a new spare complete assembly: Girard Sensor

  • Archived

    Member
    June 10, 2015 at 5:44 am

    Thanks Tom., good info. My two sensors in the front were intact when I left from Oregon to Michigan. By the time I got home one was missing two cups, the second one lost one cup during Memorial weekend. Very fragile or too old? I noticed that the rear I have one with cups and one with paddle. Talking to a tech at Marathon he mentioned that these can break whiile driving for exp on two lanes when another truck travels from opposite direction due to different air flow directions. If this is true(?) will explain the chg to paddle style, more compact / rigid design. Not fun going on the roof changing these after each trip. I will take a closer look while on the roof. Thx

  • Fred F.

    Member
    June 10, 2015 at 8:15 am

    I don’t have to get on the roof, they’re close enough to the side of the bus to work with just a ladder. It’s any easy fix.

  • Archived

    Member
    June 10, 2015 at 1:57 pm

    Thanks Tom…good to know, I can see them close to the awning, but not sure what / how far, etc.

  • Archived

    Member
    June 15, 2015 at 12:03 pm

    Lost rear Girard sensors this weekend…is there something more robust we can use?

  • Dick

    Member
    June 15, 2015 at 8:28 pm

    That’s a strange setup, mine are mounted close to the roof and don’t stick up so high.

  • Corey

    Member
    June 15, 2015 at 9:06 pm

    This Link is a Girard replacement:

    http://www.amazon.com/Girard-Wind-Sensor-Anemometer-9800151-01/dp/B00U1SNPZI


    Sorry I could not seem to be able to make the photos smaller.

    3F

  • Archived

    Member
    June 15, 2015 at 10:40 pm

    At least 8″ above roof, 2″ above awnings, unbelievable engineering or lack off

  • Archived

    Member
    June 16, 2015 at 8:47 am

    Save your money, they’re about 60 bucks. It’s the old style cups instead of the newer style vane, but works the same.

    Somfy Wind Sensor for DSM

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