[hambone]

fisher plow still does not operate.replaced relay, cleaned multi pin connectors,cleaned all terminals...only place I haven't checked is under the plastic cover on plow frame.This is a minute mount 71/2 ' with e-z act hydraulics....any suggestions?

 

[saabman]

Have you determined that there is 12 volts coming out of the solenoid (the heavy switched lead). Clicking does not insure electrical contact inside the relay. Also, how is the ground on the pump?

Chris

 

[hambone]

took off positve and negative conections on pump and cleaned them throughly.applied dielectric grease to each one. still nothing, took my battery charger,10 amp and connected it to both terminals on pump,still nothing...getting frustrated...Glen

 

[Milwaukee]

I am not sure but did you try touch those 2 huge posts with screwdriver did it spark or motor run?

I am say possible bad solenoid or switch.

 

[B&B]

battery charger,10 amp and connected it to both terminals on pump,still nothing...getting frustrated...Glen

If you want to test the motor directly, you need to use a set of jumper cables from the battery directly to the motor.

A 10 amp battery charger won't do it. Most plow motors need a minimum of 100 amps just to start.

 

[hambone]

ok thanks I do have a spare battery that i can use...i'll try that after tomorrow's storm

 

[saabman]

If you have enough slack in the positive between the pump and solenoid, you can temporarily disconnect it from the solenoid and momentarily "hot wire" it directly to the battery. You are now the "solenoid" touch the positive and the pump should run.