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wls
10-15-2008, 06:30 PM
I bought a used unimount the other day, got the undercarriage on, and bought/installed a new wire harness, actually had a ex snoway, now mechanic do the work. Anyways got it home to hook up the plow, lights all work great. So I assume the wiring is correct, when I hooked up the control (joystick) to the underdash hookup, the light came on etc. But nothing happened when I moved the joystick control, up/down or either side. I took the back off the control, and the circut board looks like it is burnt up alittle, looks like I may have to get another one, is there a way to see if thats the problem, like taking a jumper wire to the underdash, truck side connector?

B&B
10-17-2008, 10:47 PM
Jump pins 1 and 4 in the under dash connector with a jumper and listen for the solenoid to click and the pump to run.

wls
10-17-2008, 10:52 PM
Jump pins 1 and 4 in the under dash connector with a jumper and listen for the solenoid to click and the pump to run.


Will try it tomorrow, after I get my salter picked up. thanks

B&B
10-17-2008, 10:56 PM
Here's the harness side connector end view so you know which pins your looking for...

wls
10-17-2008, 11:02 PM
Here's the harness side connector end view so you know which pins your looking for...

OK thanks alot.

wls
10-19-2008, 05:36 PM
Jump pins 1 and 4 in the under dash connector with a jumper and listen for the solenoid to click and the pump to run.

Went out and checked, when I had the jumper wire in 1+4, nothing really happened, but if I left it in 4, and touched 2,5,and 6 the motor ran, also one of them made the blade swing to the right (pass side). When it was left in 4, and i touched 3 nothing happened either.
Now what, thanks

B&B
10-19-2008, 06:48 PM
The controller's defective.

wls
10-19-2008, 07:42 PM
when I had the 1and 4 jumped together, should the motor have run?, it did'nt do anything.

B&B
10-19-2008, 08:33 PM
Yes it should because your simply jumping the red 12V wire in pin #1 directly to the under hood solenoid trigger wire (#4). But if the pump ran when you tried other pins then either you just had the pins reversed or your connection wasn't quite good enough.

The fact that you were at least able to make the pump run (and even angle at one point) tells you that the wiring, under hood solenoid, and pump are all functioning fine. Nothing left but the controller.

wls
10-19-2008, 09:50 PM
Yes it should because your simply jumping the red 12V wire in pin #1 directly to the under hood solenoid trigger wire (#4). But if the pump ran when you tried other pins then either you just had the pins reversed or your connection wasn't quite good enough.

The fact that you were at least able to make the pump run (and even angle at one point) tells you that the wiring, under hood solenoid, and pump are all functioning fine. Nothing left but the controller.

OK thanks, I have a new controllor coming, or I should say a new circut board coming. thanks again.

wls
10-25-2008, 09:13 AM
well I got the new controllor, but there now a clicking sound coming from where the poppet valves go, down inside the valve body, now what? thanks

wls
10-25-2008, 11:05 AM
Got another question, I took the motor off, hooked up a battery charger, ran great, nice and smooth/quite. Bolted back uo, hooked charger to it, it sounded like it was just humming, so I took it back off, turned the pump by hand, could turn it fairly easy clockwise, but ccw, it would turn easy for 1 1/2 turn then freeze up? What direction does the pump turn? any ideas, thanks

B&B
10-25-2008, 03:10 PM
A battery charger wont supply enough amps to run the motor with a load on it (ie attempting to turn the pump).

Jump the two large posts on the under hood solenoid with a set of jumper cables briefly. Does the motor run then?

wls
10-26-2008, 11:28 AM
A battery charger wont supply enough amps to run the motor with a load on it (ie attempting to turn the pump).

Jump the two large posts on the under hood solenoid with a set of jumper cables briefly. Does the motor run then?

Barely, Looking at the motor (shaft) when I put 200 amps to it, it just rotated about 2-2 1/2 turns, you could see the revolutions, sounded like a heck of drag. My lights in the shop would flicker. When charger unhooked, just clicking sound when you move the controllor (joy stick)
Wanted to add, when I jumped the wiring harness, from the motor to where it would plug in to the body harness, it turned over fine, so from the plow harness to the motor is good. Thanks

B&B
10-26-2008, 03:27 PM
If I'm following your explanation correctly it sounds like the under hood solenoid is defective. Jump it RIGHT AT THE TWO LARGE TERMINALS ON THE UHS and see if it runs. If it does then the UHS is defective.

wls
10-26-2008, 03:53 PM
If I'm following your explanation correctly it sounds like the under hood solenoid is defective. Jump it RIGHT AT THE TWO LARGE TERMINALS ON THE UHS and see if it runs. If it does then the UHS is defective.

when I hook the jumper to the 2 big lugs on the UHS, the motor barely tuns over, about 2 revs, then stops, real slow. so basically, the motor does'nt run. thanks

B&B
10-26-2008, 05:08 PM
when I hook the jumper to the 2 big lugs on the UHS, the motor barely tuns over, about 2 revs, then stops, real slow. so basically, the motor does'nt run. thanksAnd what happens what you run the jumper cables (including the ground) directly from the battery to the motor? If it run fine that way then you have a poor power or ground connection on the battery harness somewhere.

wls
10-26-2008, 05:48 PM
And what happens what you run the jumper cables (including the ground) directly from the battery to the motor? If it run fine that way then you have a poor power or ground connection on the battery harness somewhere.

it was the ground, from the uhs to the body/battery ground, they had it to the pos side of battery. Thanks so much B&B

B&B
10-26-2008, 08:16 PM
it was the ground, from the uhs to the body/battery ground, they had it to the pos side of battery. Thanks so much B&BGood deal. :drinkup:


And thats not at all uncommon...I fixed one again just yesterday that the DIY installer did the exact same thing. They see a mostly orange colored wire and assume it's a hot wire rather than checking the wiring diagram to know for sure.

wls
10-26-2008, 09:01 PM
Good deal. :drinkup:


And thats not at all uncommon...I fixed one again just yesterday that the DIY installer did the exact same thing. They see a mostly orange colored wire and assume it's a hot wire rather than checking the wiring diagram to know for sure.

exactly, thats probably why I did'nt think any different, thanks for all your help.

roadrunner9914
12-03-2008, 06:58 PM
does anyone have an easy to read wiring diagram to hook up a myers snow plow

B&B
12-03-2008, 07:01 PM
Plenty of different versions of them posted around here.

Here's the most basic one:

http://i242.photobucket.com/albums/ff202/berpsu/wiringdiapic-1.jpg

roadrunner9914
12-04-2008, 07:45 AM
thank you b&b but i still need to know how wires get hooked up on togel switch

B&B
12-04-2008, 08:42 AM
Should have been more specific. :D


http://i242.photobucket.com/albums/ff202/berpsu/meyercontrolswitchpicSmall-1.jpg

needforspeed
12-01-2009, 01:20 PM
I have a Western Unimount Plow hooked up to a 2001 F-250 7.3 Diesel that worked great last winter, but after disconnecting and storing over summer, when I try to turn or lift the blade I only get clicking from the uhs unless I jump directly from the battery to the motor then everything works. I tried jumping both large lugs from the uhs but nothing happens. I tested the uhs and have power on both large lugs until I hit the controller and then it loses power, is that normal?

B&B
12-01-2009, 04:11 PM
I tested the uhs and have power on both large lugs until I hit the controller and then it loses power, is that normal? Should only have battery power on ONE of the large terminals until the controller is pressed for an angle or raise function.

You likely have a bad solenoid or a poor cable connection somewhere between the battery and the plow motor.

Nascar24
12-01-2009, 04:55 PM
Should have been more specific. :D


http://i242.photobucket.com/albums/ff202/berpsu/meyercontrolswitchpicSmall-1.jpg

Boy that left thumb looks famalier! lol I think it is attached to my left hand, lol

B&B
12-01-2009, 05:02 PM
It should Jay. You sent me the pic to paintshop with and send back remember? :D

needforspeed
12-01-2009, 08:30 PM
I replaced the Solenoid today, and still have not fixed the problem. I am mechanically inclined and have tried everything. When I disconnected it from the truck all worked fine, when reconnecting the only 2 connections that were unplugged, it doesn't. Will have to take it in per your second suggestion. Thanks B&B