763 Auxiliary Hydraulic Fuse Blowing - Any Ideas?

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Melskid

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Apr 11, 2012
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I have a 763 Bobcat that keeps blowing 15amp fuse that runs the Aux. Hydraulics. If I use the auto button (when running a brush cat) it doesn't blow. If I use the manual button (when running the auger) it blows immediately. I have tried using both switches on each Joystick and it still blows the fuse. Any troubleshooting help would be appreciated.
 
All i can suggest is checking the wiring from the handles back to the control module.
Auto button, what one is that? i assume it makes the brush cat operate so the coils on the aux stems are working and not shorted.
 
Tazza said:
All i can suggest is checking the wiring from the handles back to the control module.
Auto button, what one is that? i assume it makes the brush cat operate so the coils on the aux stems are working and not shorted.
Click to expand...
If the mode switch is pressed once, it is in manual mode for the aux hydraulics and is actuated with rocker switch (thumb switch on the Steering lever). If you push the mode switch twice, it goes into auto mode, and is actuated with the auxiliary hydraulic switch (finger trigger).
 
Melskid said:
If the mode switch is pressed once, it is in manual mode for the aux hydraulics and is actuated with rocker switch (thumb switch on the Steering lever). If you push the mode switch twice, it goes into auto mode, and is actuated with the auxiliary hydraulic switch (finger trigger).
Click to expand...
Pressing it twice should put it into continuous flow mode, you press the trigger and it will keep flowing.
One activates it, two makes it continuous, three turns it off.
 
Tazza said:
Pressing it twice should put it into continuous flow mode, you press the trigger and it will keep flowing.
One activates it, two makes it continuous, three turns it off.
Click to expand...
Yes, that is correct and that all works fine. The problem is when the rocker switch (manual mode) is actuated, the fuse blows. It doesn't blow in auto mode. Wondering if anyone ran into the same problem to help me troubleshoot the problem.....
 
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Melskid said:
Yes, that is correct and that all works fine. The problem is when the rocker switch (manual mode) is actuated, the fuse blows. It doesn't blow in auto mode. Wondering if anyone ran into the same problem to help me troubleshoot the problem.....
Click to expand...
Its possible the wires running through the handle are shorting out. When you operate the switch it shorts and pops the fuse.
Try disconnecting the plug for the lever, use a multi-meter. One probe on a good grounded source, the other touch each pin one at a time. None should be grounded. If one is, its shorting out.
If no shorts are found, trace the wires back to the controller. Has to be a wiring issue....
Even disconnect the coils on the control block and see if the switch blows the fuse still.
 

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