Medium and Heavy Trucks

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I have a western unimount plow hooked everything up and it…

Customer Question
I have a western...

I have a western unimount plow hooked everything up and it goes up left and right but not down

Mechanic's Assistant: What is the complete model and serial number of your machine?

I have no idea I bought it off craigslist and everything is worn off

Mechanic's Assistant: Are you fixing this yourself? What have you tried so far?

I am fixing it myself. When it wouldn’t go down It seemed like it wasn’t getting power to valve 1 so I hooked up 12v and it did go down I ran a whole new line from valve 1 to controller and still nothing

Mechanic's Assistant: Anything else you want the equipment mechanic to know before I connect you?

I think that’s it

Submitted: 4 months ago.Category: Medium and Heavy Trucks
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Answered in 1 hour by:
12/6/2017
Technician: Curtis B., Technician replied 4 months ago
Curtis B.
Curtis B., Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 30,089
Experience: Technician turned service manager on multiple lines of trucks and engines, used in industry.
Verified

Welcome to JUST ANSWER heavy equipment. With years of experience, I look forward to doing my best to help.

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Technician: Curtis B., Technician replied 4 months ago

Any voltage to the lowering valve solenoid from the controller? Have you checked the switches in the controller?

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Customer reply replied 4 months ago
when pin 6 is not hooked up the indicator light is off everything else still works when I run a jumper from pin 1 to pin 6 I lose all voltage at pin 6
Customer reply replied 4 months ago
I get 12v of power on all the switches in the controller and the grounds all read about 1.5 except the lowering its double around 3-4v
Technician: Curtis B., Technician replied 4 months ago

Do you have any kind of wiring diagram showing the plug and its source.

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Technician: Curtis B., Technician replied 4 months ago

Is this 9 pin plug? See schematics in link below.

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Technician: Curtis B., Technician replied 4 months ago
Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 4 months ago
It’s all custom I bought New 6 pin plugs and wired myself according to those schematics
Technician: Curtis B., Technician replied 4 months ago

Which schematic are yu using?

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Technician: Curtis B., Technician replied 4 months ago

Is controller new or came with plow? Switches all good?

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Customer reply replied 4 months ago
It’s used didn’t come with plow came from a different as far as I can tell all the switches are good they all receive 12v
Technician: Curtis B., Technician replied 4 months ago

When you jump a pin with voltage and you lose voltage, usually the wire that you connect to has a bad connection and circuit is not complete.

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Customer reply replied 4 months ago
I thought the same thing but I ran a whole new line with just the one connection now I know it has a good connection now
Technician: Curtis B., Technician replied 4 months ago

How is the ground to the lowering valve?

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Customer reply replied 4 months ago
It must be good cause all 3 valves are grounded together and the others work even still I ran a new ground line as well from s1 to the motor still nothing
Technician: Curtis B., Technician replied 4 months ago

Did you swap any of the coils?

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Customer reply replied 4 months ago
still nothing. It’s so weird it goes down when I hook a battery float charger plugged into an outlet and hook the ground to the motor and touch the power to the valve
Technician: Curtis B., Technician replied 4 months ago

Do you get voltage from the controller for the down function? If not, I would be looking at the switch.

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Customer reply replied 4 months ago
The switch in the controller reads 12v on 1 pin and -3.4v on the other pin is it possible to run everything to a single switch inside the cab not to the controller
Customer reply replied 4 months ago
By everything I mean s1 only to a switch
Technician: Curtis B., Technician replied 4 months ago

A series of toggle switches would work the same as the controller.

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Customer reply replied 4 months ago
I guess I will try a toggle switch for s1 (lowering) and use the controller for up left and right only
Technician: Curtis B., Technician replied 4 months ago

I don't see why that won't work!

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Curtis B.
Curtis B.
Curtis B., Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 30,089
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Experience: Technician turned service manager on multiple lines of trucks and engines, used in industry.

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