853 Bobcat Aux Hydraulics Not Working

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Maxwedgehead

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Aug 25, 2014
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A couple months ago I bought this machine and hadn't tried out the auxiliary hydraulics, I attached my buddies log splitter to try them before I bought a snow plow and they don't work, I pressed the button twice and both LEDs lit up, I tried the switches on the handle and didn't get anything, any ideas where to start?
 

OldMachinist

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May 24, 2006
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Did you try to move the controler back and forth
 photo AuxOper_zpscce3ecc2.jpg
 

Tazza

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Evan better turn it on lol
If you pressed the button on the dash to get the lights to come on, you have done everything right.
If they have not been used for a long time the stems may be stuck.
I'd lift the cab, remove the coils from the stems, put a screwdrive in the hole of the coil and operate the aux hydraulics, see if you can feel it being magnetized. If so, the coils are working and it is the stems.
You can buy new stems, you can also pull them apart and try to free them.
 

Tazza

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If you pressed the button on the dash to get the lights to come on, you have done everything right.
If they have not been used for a long time the stems may be stuck.
I'd lift the cab, remove the coils from the stems, put a screwdrive in the hole of the coil and operate the aux hydraulics, see if you can feel it being magnetized. If so, the coils are working and it is the stems.
You can buy new stems, you can also pull them apart and try to free them.
Another way to check the coils is to remove the nuts on the coils, activate the aux hydraulics and try and lift the coils off the stems, if they resist the coils are working.
 
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Maxwedgehead

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Another way to check the coils is to remove the nuts on the coils, activate the aux hydraulics and try and lift the coils off the stems, if they resist the coils are working.
I will check them, I did press the aux button twice and both LEDs lit up, I tried it with it only pushed once, I tried it in all combinations and never got anything whatsoever.
 

Tazza

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I will check them, I did press the aux button twice and both LEDs lit up, I tried it with it only pushed once, I tried it in all combinations and never got anything whatsoever.
One press should bring one light on, that is momentary operation from the thumb switch. Two presses two lights should be on and the trigger should hold the flow on. A thrid press should turn the lights off and deactivate the aux hydraulis.
 
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Maxwedgehead

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One press should bring one light on, that is momentary operation from the thumb switch. Two presses two lights should be on and the trigger should hold the flow on. A thrid press should turn the lights off and deactivate the aux hydraulis.
Thats what I thought, either way I still had no hydraulic flow whatsoever. Are the switches supposed to be just click click side to side or what? They just don't feel right.
 

Tazza

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Thats what I thought, either way I still had no hydraulic flow whatsoever. Are the switches supposed to be just click click side to side or what? They just don't feel right.
Depends, the newer ones don't click, they are smooth so you can have vairable flow, so the more you move the switch the more flow you get.
If they have never been used, the stems may be stuck.
 
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