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Fisher Insta-Act (not going down)

Discussion in 'Truck & Equipment Repair' started by Vinrum, Dec 30, 2012.

  1. Vinrum

    Vinrum Junior Member
    Messages: 14

    Used the plow today for the first time this year, on my first account, the plow didnt want to drop. It goes up and pivots from side to side no problem..any ideas what it could be? I checked and cleaned all the connection, and still nothing.. Later in the day, I went out and checked it for the hell of it, and it went down no problem.. I went back out to start the accounts again and it did the same, now it is stuck in the up position??
     
  2. quigleysiding

    quigleysiding PlowSite.com Addict
    Messages: 1,097

    Wiggle the headlight plug . Watch your toes. :eek:
     
  3. Vinrum

    Vinrum Junior Member
    Messages: 14

    Just went out and checked the plugs again. and still nothing..
     
  4. quigleysiding

    quigleysiding PlowSite.com Addict
    Messages: 1,097

    Mine used to do that first run every year. Always worked. Just hang on someboby smarter than me will help. Is the light on on your control?
     
  5. no lead

    no lead PlowSite.com Addict
    Messages: 1,308

    sounds like bad connection at the grill plug. spray it with brakeclean and blow out with compressed air. dialectric grease the plugs and see what happens.
     
  6. Vinrum

    Vinrum Junior Member
    Messages: 14

    Yes, the light is on, on the contoller..It works left and right, and up..just stuck in the up position
     
  7. quigleysiding

    quigleysiding PlowSite.com Addict
    Messages: 1,097

    That what mine would do everything but down. It was always that plug
     
  8. Vinrum

    Vinrum Junior Member
    Messages: 14

    Thanks guys, I will try that in the morning..I will keep you posted... Again,Thanks for your input
     
  9. Vinrum

    Vinrum Junior Member
    Messages: 14

    Well guys, I wire brushed, brake cleaned and blew out all plugs, and Dielectric greased them, and the plow still wont go down, I had to put a floor jack under the frame to take some pressure off the front end.. Any other ideas??
     
  10. quigleysiding

    quigleysiding PlowSite.com Addict
    Messages: 1,097

    how many pins in the plug. Is there one rotted off?
     
  11. Vinrum

    Vinrum Junior Member
    Messages: 14

    11 on one plug, and 3 on the other,,,all pins are intact, with no rust/rot at all..
     
  12. quigleysiding

    quigleysiding PlowSite.com Addict
    Messages: 1,097

    Wish I could be more help.There are guys on here who can. Dont know why they havent yet? Hang in there someone will chime in.
     
  13. Vinrum

    Vinrum Junior Member
    Messages: 14

    Could it be the joystick?? Can the joystick be tested??
     
  14. quigleysiding

    quigleysiding PlowSite.com Addict
    Messages: 1,097

  15. hatefulmechanic

    hatefulmechanic Senior Member
    Messages: 228

    You need to see if the S1 solenoid is getting a 12v signal to dump the pressure. Test light on the WHT/YLW wire as close to the solenoid as you can, have someone activate the controller. If you are getting voltage, you have a sticking solenoid or clogged port.

    If you are not getting power, you need to trace back to the truck side of the main harness, and perform the same check. If you are still not getting power when the down button is pushed, check the WHT/YLW wire at pin #6 on the truck side of the controller harness (color of wire is different between the old style stick or the FishStik, but both perform the same function.

    *EDIT* This goes without saying but WATCH YOUR FEET when doing these tests. Block the blade up, or get it lowered before doing this. These blades do not care if there is a foot under them.
     
  16. Vinrum

    Vinrum Junior Member
    Messages: 14

    Are the S1-S2-S3 all interchangable? Could I pull the S2 and use it in the S1 spot, just to check it??
     
  17. hatefulmechanic

    hatefulmechanic Senior Member
    Messages: 228

    Before playing swappo the clown, you need to see if its an electrical issue or hydraulic.
     
  18. hatefulmechanic

    hatefulmechanic Senior Member
    Messages: 228

    But to answer the solenoid question, no, they are not interchangable. Part numbers are different for each position.
     
  19. Vinrum

    Vinrum Junior Member
    Messages: 14

    Thanks Hateful, I cant find the 11 pin plug schematic to test the #6 pin,,the only plugs I see are the 12 and 9
     
  20. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,969

    did you ck the wht/ylw wire at the coil yet??? test light clip on neg, and point on the pin.???