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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
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<blockquote data-quote="skidsteer.ca" data-source="post: 3468" data-attributes="member: 307"><p>The needle is inside the piece with the orings on it and the magnetic field the coil generates moves the needle to open or close the valve. I had to unplug my parking brake solinoid b4 I could hear the valve. (PB is in the center of the machine, middle chaincase cover, under seat, 3 large wire coming from it, standing on its end) which make the loud "click" you here when you push the green button or lower your seat bar (which ever you happen to have). I had my wife listen but even standing up in front of the cab with the cab up I could here it click by turning the key on and off. It had only 7.8 volts across the 2 wires with the coil unplugged. You should test your coil resistance (ohms) to be certain it is not burnt out. There must be continuity between the two wires, I'm unsure of the ohms but guessing 150 to 200, defintely not zero 0. Guess I should have checked that.</p><p>If your not hearing the click, check the ohms , if you get 150 or so try hot wiring with 12 volts, but don't leave it connected to long, 12volts may be to much and burn out the coil. But with no click and 7 volts coming to it sounds like your coil may be burnt out, ie open circuit, 0 ohms. If you take it to bobcat to get a new one they could tell you the ohms it should have or test it for you.</p><p>I never though to look if the coils on the main hyd valve (for your 3rd valve/ quick couplers) are the same. if they look alike you could swap, test and compare, etc. You won't need your 3rd valve if you boom don't move.</p><p>Ken</p></blockquote><p></p>
[QUOTE="skidsteer.ca, post: 3468, member: 307"] The needle is inside the piece with the orings on it and the magnetic field the coil generates moves the needle to open or close the valve. I had to unplug my parking brake solinoid b4 I could hear the valve. (PB is in the center of the machine, middle chaincase cover, under seat, 3 large wire coming from it, standing on its end) which make the loud “click” you here when you push the green button or lower your seat bar (which ever you happen to have). I had my wife listen but even standing up in front of the cab with the cab up I could here it click by turning the key on and off. It had only 7.8 volts across the 2 wires with the coil unplugged. You should test your coil resistance (ohms) to be certain it is not burnt out. There must be continuity between the two wires, I'm unsure of the ohms but guessing 150 to 200, defintely not zero 0. Guess I should have checked that. If your not hearing the click, check the ohms , if you get 150 or so try hot wiring with 12 volts, but don't leave it connected to long, 12volts may be to much and burn out the coil. But with no click and 7 volts coming to it sounds like your coil may be burnt out, ie open circuit, 0 ohms. If you take it to bobcat to get a new one they could tell you the ohms it should have or test it for you. I never though to look if the coils on the main hyd valve (for your 3rd valve/ quick couplers) are the same. if they look alike you could swap, test and compare, etc. You won't need your 3rd valve if you boom don't move. Ken [/QUOTE]
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