3rd function for front loader.

chipruss

New member

Equipment
70 & 90 hp Kubota tractors
Apr 4, 2021
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0
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22741
When I purchased the 7090 a couple of years ago, I had a 3rd control installed for the loader. I have finally purchased a grapple and found that the B button on the control does not work. The A button works, but no response from the B button. I switched lines and A button closed the grapple but must be a wiring issue. Any thoughts or help? Activation button works, just no response from B.
 

DustyRusty

Well-known member

Equipment
2020 BX23S, BX2822 Snowblower, Curtis Deluxe Cab,
Nov 8, 2015
5,172
3,837
113
North East CT
look for a broken or disconnected wire inside of the button assembly. That would be the first place to look, and then do a connectivity test of the wires. If you have a schematic of the wiring, it will make it easier, but I would assume that it goes from the battery to the switch out to the relay, and that everything uses the tractors ground. Since one button works, and the other doesn't I will assume that the ground is good.
 
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