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Bradley Martin
Bradley Martin,
Category: Construction and Road Equipment
Satisfied Customers: 174
Experience:  Field Technician at Thompson Tractor Company
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My bucket control stopped functioning on my 279c skid steer

Customer Question

My bucket control stopped functioning on my 279c skid steer today. I have track control but no bucket. It has been acting funny lately but today it quit all together.
Submitted: 6 months ago.
Category: Construction and Road Equipment
Expert:  Bradley Martin replied 6 months ago.

Are there any fault codes on the display? and what is your serial number?

Customer: replied 6 months ago.
no codes
the serial is MBT01588
2012 279Cadditional symptoms- the right side safety restraint- the same side as the buck control is not registering. ie when it is lifted the brake is supposed to automatically come on. It can be raised or lowered and the brake does not engage. the tracks will even move when its up..
Expert:  Bradley Martin replied 6 months ago.

Press number 3 and 5 at the same time from the this picture to pull fault codes from machine

Customer: replied 6 months ago.
2471-3
E875-2(###) ###-####
Expert:  Bradley Martin replied 6 months ago.

2471-3 is a fault code for the cab door switch voltage above normal. Check the switch voltage and may have to replace the switch that could be causing the issues with the bucket controls

Expert:  Bradley Martin replied 6 months ago.

Use this and go to service mode 6 to see if you joysticks are working properly

Customer: replied 6 months ago.
I dont think that is it. Only because I just removed the door so I could access the cab. After I took off the door I started seeing the flashing "!"
Expert:  Bradley Martin replied 6 months ago.

Did you bypass the door switch?

Customer: replied 6 months ago.
No, I dont know how to do that.I only took off the door today to get in as the the bucket was stuck and I could not open the door.My hunch is that the machine doesnt recognize that there is even a problem with the right safety arm/joystick. Just my 2 cents
Expert:  Bradley Martin replied 6 months ago.

Ok check the joystick operation on the service mode 6 that will tell us if the ECM is seeing the joystick operate

Customer: replied 6 months ago.
The ecm does see the right side joystick both x and y axis
Expert:  Bradley Martin replied 6 months ago.

Ok are you able to raise the cab?

Customer: replied 6 months ago.
Expert:  Bradley Martin replied 6 months ago.

Ok we need to check the wiring to the solenoids under the cab on the left hand side of the frame when looking at the machine standing in font of the bucket need to check all connections on the solenoids I will send a diagram of the solenoids

Expert:  Bradley Martin replied 6 months ago.

Here is a PDF of the control valve

Customer: replied 5 months ago.
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  Bradley Martin replied 5 months ago.

Did you check the solenoids yet?

Customer: replied 5 months ago.
Everything appears to be connected
Expert:  Bradley Martin replied 5 months ago.

need to disconnect the tilt and lift solenoid and ohm it out to check continuity may have a bad solenoid

Customer: replied 5 months ago.
I have no idea how to do this
Expert:  Bradley Martin replied 5 months ago.

Do you need me to call you?

Expert:  Bradley Martin replied 5 months ago.

Need to take a multi meter and set it to ohms check for continuity it will be OL if there is no continuity and 0.1 or so if there is

Customer: replied 5 months ago.
OK BUT DOES THIS EXPLAIN THE FACT THAT THE RIGHT SIDE SAFETY ARM IS NOT WORKING TOO?AND ARE THERE 2 SEPARATE SOLENOIDS? THEY BOTH WOULDN'T HAVE FAILED AT THE SAME TIME
Expert:  Bradley Martin replied 5 months ago.

Very likely they would not can you bypass the side safety arm and see if the controls will work

Customer: replied 5 months ago.
i dont know how to do that
Expert:  Bradley Martin replied 5 months ago.

Connect the red and orange wire on the arm bar switch together that should bypass the arm bar switch

Customer: replied 5 months ago.
Are you available this afternoon for a phone call?
Expert:  Bradley Martin replied 5 months ago.

Yes were you able to bypass the arm bar switch?

Expert:  Bradley Martin replied 5 months ago.

Never got your number from you do you still want a phone call

Customer: replied 5 months ago.
my number is(###) ###-####
Expert:  Bradley Martin replied 5 months ago.

Ok can I still call around 12 or 1 will that be ok

Expert:  Bradley Martin replied 5 months ago.

central time

Customer: replied 5 months ago.
anytime
Customer: replied 5 months ago.
can you call me or can I call you?I can be in front of the machine in 30 min
Expert:  Bradley Martin replied 5 months ago.

Here is the schematic

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