HD wiring
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Cargo Master
Joined: Apr 2002
Posts: 3,027
Likes: 9
From: Manchester, CT USA
HD wiring
Gonna be installing an old used plow onto my '92 F150. It's a pathfinder with the old permanent style mount (lights and pump stay on truck). I want to retro fit/ customize it to take the pump/lights off.
I'm gonna use a quick disconnect ( jumper cable style) for the main power. When the plows off I want to make the main power switchable to cut down what I have to unbolt and so it's not always on.
Now onto the electrical question: Can I use a starter solenoid as a relay? Will it standup to constant on, instead of just momentary use? Or is there a relay big enough to withstand the amperage? That way I can turn the pump off from inside the cab with a rocker switch.
I'm gonna use a quick disconnect ( jumper cable style) for the main power. When the plows off I want to make the main power switchable to cut down what I have to unbolt and so it's not always on.
Now onto the electrical question: Can I use a starter solenoid as a relay? Will it standup to constant on, instead of just momentary use? Or is there a relay big enough to withstand the amperage? That way I can turn the pump off from inside the cab with a rocker switch.
Moderator
Joined: Jan 2001
Posts: 57,025
Likes: 2,756
From: Virginia
I am not sure what you are doing. I use a regular starter relay to power the hydraulic motor for the plow, but it is only on when I lift the plow or turn the plow.
I also have a permanent mount plow. When I want to take it off, I just unbolt the large power wire from the solenoid, the large ground wire from the engine block(I added this one for a better ground to the plow) and then take off about 5 or 6 wires off a terminal block I mounted in the engine compartment.
If you wanted to use quick disconnects, for the pump power I would use a large plug like they use on forklifts, and count how many smaller wires you need to unplug, and possibly a 6 pin trailer plug would work for that.
I am not sure why you would need a constant power relay for the plow.
I also have a permanent mount plow. When I want to take it off, I just unbolt the large power wire from the solenoid, the large ground wire from the engine block(I added this one for a better ground to the plow) and then take off about 5 or 6 wires off a terminal block I mounted in the engine compartment.
If you wanted to use quick disconnects, for the pump power I would use a large plug like they use on forklifts, and count how many smaller wires you need to unplug, and possibly a 6 pin trailer plug would work for that.
I am not sure why you would need a constant power relay for the plow.
Thread Starter
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Cargo Master
Joined: Apr 2002
Posts: 3,027
Likes: 9
From: Manchester, CT USA
I want the part permanently attached to the truck switchable instead of always on.
Then I only need a plug, like the 6-pin trailer plug, for the headlights and turn signals.
The hydraulic valves are underhood, so I just need to disconnect the lines.
Cargo Master
Joined: Mar 2008
Posts: 2,579
Likes: 211
From: Washington
Napa has them, dont use a starter solenoid.
Solenoid Switch - Universal
Item#: PHI54140
Price: $29.99
tax and shipping not included
Attributes:
Product Features:Continuous Duty
External Ground
# of Mounting Holes:2
# of Terminals:4
Ground Type:Continuous
Solenoid Switch Voltage:12 Volt
Solenoid Switch - Universal
Item#: PHI54140
Price: $29.99
tax and shipping not included
Attributes:
Product Features:Continuous Duty
External Ground
# of Mounting Holes:2
# of Terminals:4
Ground Type:Continuous
Solenoid Switch Voltage:12 Volt
