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Used Plow won't Turn on

Discussion in 'Truck & Equipment Repair' started by Aminator, Sep 4, 2012.

  1. Aminator

    Aminator Junior Member
    from CT
    Messages: 11

    Hello, I'm a newbie. Just got a 96 f250 7.3 Came with an old 8' fisher plow for free. On the hydraulic solenoid pak it says:

    series A
    serial #F or E 132952 (paint makes it hard to read)

    I've never had a plow before, and know nothing about them. Figured, if its free, I can plow my drive, the neighbors, or at least sell it for scrap if it comes to that. Driving it home the plow locked in the right position. No movement left. (previous owner said it's happened to him a couple of times and drying out the solenoids fixed it.)

    Went to move the plow to a different spot in the driveway yesterday, and the joystick won't even turn on. No red light. No plow motor, nor plow lights will turn on.

    I checked all connections and they looked good. I could not find the inline fuse though. Traced from the joystick, to the batteries, and then to the plow and nothing. It could be a POS Frankenstein job by the previous owner.

    Any suggestions? How do I test if power is getting where it needs to go with a multimeter? I'm in Norwalk CT if you know of anyone who could take a look?

    Thank you.
     
  2. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,958

    Ok. Let's start simple. Does the light bar stay with the tk or does it come off with the plow? Is the joystick a small box or is it bolted to the dash
     
  3. Aminator

    Aminator Junior Member
    from CT
    Messages: 11

    The lights on and for the plow, stay with the plow/hydraulic unit when detached from the truck.

    The joystick is a black box, about the size of the palm of a hand, with a bundle of 6 wires coming out the right side, the on/off switch on the left side, the red power button on the bottom, and a metal L shaped attachment with which it bolts to the dash.

    I've heard there is supposed to be a red power wire also coming from the joystick, but I see none now, nor remember there ever being one.
     
  4. if the headlights dont turn on you probably broke a few wires on the truckside harness

    otherwise trace from the stick down the wires and there should be a fuse where it gets power check that or use a test light ground it out and poke the wires to check for power

    then check your module which is probably under the hood. near the module there will be several fuses check them

    and finally if those are good use a multi meter put it on the ohms setting and unplug the harness from the module and test each one at a time putting one side of the meter on the harness that connects to the plow and plug that connects to the module. this takes some time and can be annoying but is the easiest way to ensure you dont have any broken wires from the module to the plow. you can do the same process from the module to the stick

    good luck
     
  5. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,958

    Good points snow. Need to find out what kinda fisher it is first tho. Ok another q? How many plugs do you have at the grill?? And are the lights a 2 post stud or 1. And are they big lights or rectangular with a square light bulb?
     
  6. unhcp

    unhcp PlowSite.com Addict
    Messages: 1,243

    Maybe he could just post a picture?
     
  7. Aminator

    Aminator Junior Member
    from CT
    Messages: 11

    Two plugs. I think rectangular lights. I'll get some pics tonight/tomorrow morning, and get more detailed info for you.

    Thank you for the help!
     
  8. Aminator

    Aminator Junior Member
    from CT
    Messages: 11

    Here are pics of plow and hyrdo/solenoid pak. More pics of joystick and wiring later. I have not been able to locate a fuse. I called a local fisher dealer and they said there should be a red power wire from the joystick. I could not find one. I don't remember there ever being one honestly. I have not yet had time to test with a multimeter. I'll report back when I do. Thanks again.

    IMG_0201.jpg

    IMG_0202.jpg

    IMG_0203.jpg

    IMG_0204.jpg

    IMG_0206.jpg
     
    Last edited: Sep 8, 2012
  9. Aminator

    Aminator Junior Member
    from CT
    Messages: 11

    Pics of hyrdo/solenoid and plugs on plow

    IMG_0208.jpg

    IMG_0209.jpg

    IMG_0210.jpg

    IMG_0211.jpg
     
  10. Aminator

    Aminator Junior Member
    from CT
    Messages: 11

    Plugs on truck, joystick, and wiring from joystick through firewall.

    IMG_0211a.jpg

    IMG_0211b.jpg

    IMG_0212.jpg

    IMG_0213.jpg

    IMG_0214.jpg
     
  11. Aminator

    Aminator Junior Member
    from CT
    Messages: 11

    engine compartment wiring.

    IMG_0215.jpg

    IMG_0216.jpg

    IMG_0217.jpg
     
  12. FordFisherman

    FordFisherman PlowSite.com Addict
    from 06611
    Messages: 1,593

    One is the plow solenoid, one is the starter solenoid. You need to trace your power source first. The red wire on the control harness is power. Then inspect and clean your connections on that motor and grille connectors. Coat them w/elecrtric grease Could be as simple as a blown fuse.
     
    Last edited: Sep 9, 2012
  13. Aminator

    Aminator Junior Member
    from CT
    Messages: 11

    Found a sticker on the wire bundle coming from the firewall with a sticker that 8/95 at the bottom and some other info. I think this plow came with the truck, or shortly there after.

    Found the red power wire. Found the fuse, and the fuse was fine. It does not wire in to the ignition though. It wires in to the number one fuse on the fuse panel, for ac/heat. That fuse was fine too.

    Will give the harnesses a good cleaning. They are currently coated with dielectric grease. One of the pins does look a little corroded.

    I could not find a module. How do I test for broken wires/connections? Or even if the power wire is getting power?

    IMG_0220.jpg

    IMG_0221.jpg
     
    Last edited: Sep 9, 2012
  14. FordFisherman

    FordFisherman PlowSite.com Addict
    from 06611
    Messages: 1,593

    Put 12 volts to the motor stud and a good ground to see if it functions, if so check or replace the solenoid on the firewall, look over all the underhood wiring and wiggle the grille connectors (they may be bad).
     
  15. FordFisherman

    FordFisherman PlowSite.com Addict
    from 06611
    Messages: 1,593

    With the key in the on position, the red light should light on the controller.
     
  16. FordFisherman

    FordFisherman PlowSite.com Addict
    from 06611
    Messages: 1,593

    Looking at the pics again, I see one of the plug wires is all taped up like it was spliced. Untape and chk those connections.
     
  17. Aminator

    Aminator Junior Member
    from CT
    Messages: 11

    No light. That is the problem that inspired this thread. Will report back when I test the motor, relay, and another pass at the wiring.

    Thank you again for the help!
     
  18. FordFisherman

    FordFisherman PlowSite.com Addict
    from 06611
    Messages: 1,593

    Yeah sorry to state the obvious abt the red light, focus on the plug connections first; I have a feeling thats where your prob is.
     
  19. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,958

    you have to have pwr to the controller first,,,all else is secondary. ck that fuse in the fuse box, then ck for pwr into thr fuse holder, then out of the fuse holder. and have the key on....and last take the fuse out and ck the contacts....i've replaced so many of them little fuse holders it aint even funny
     
  20. brad96z28

    brad96z28 PlowSite.com Addict
    Messages: 1,526

    Where is the main ground wire connected? It should go on the neg post of the battery or on the engine block.I dont see where it is on the pics?