How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Dan Your Own Question

Dan
Dan, Journeyman
Category: Heavy Equipment
Satisfied Customers: 4582
Experience:  17+ yrs. shop and field experience with all major brands of heavy equipment and trucks - 1995 WyoTech graduate.
65405794
Type Your Heavy Equipment Question Here...
Dan is online now

hi, we have a jcb robot skid steer from 1995 , the loader and

Resolved Question:

hi, we have a jcb robot skid steer from 1995 , the loader and drive have stoped working after it starts up , the third service is working ,have tried to bypass the door and control bar switches with no luck ,it has been playing up before and thought it was one of the safety switches then ,taking them off and swaping them round and it did come back to life but this time nothing ,any pointers would be appreciated, ta a frustrated engineer
Submitted: 3 years ago.
Category: Heavy Equipment
Expert:  Dan replied 3 years ago.

Hi my name isXXXXX will try to help. First retest all your safety switches, check fuses/relays, and thoroughly inspect your harness for any open circuits (broken/ loose wiring or connector pins/terminals. If OK, Test for power and ground to the solenoid to verify and if OK then remove/inspect and replace the solenoid if not functioning mechanically or electronically with good power and ground. Any two wire safety switches can be bypassed for test purposes. Also, look under your seat for a seat switch and verify it is functioning properly if equipped. Reply back if you need further help and I'll be glad to help.

Customer: replied 3 years ago.

Thanks for that will go through things again , forgot to mention the hand brake switch is also linked to the safety switches and cant get any power at the base of this switch ,the door and control bar switches have three wires coming in to them, red blue and yellow with power in the red and yellow is there a correct way of bypassing these switches?

Expert:  Dan replied 3 years ago.
Thanks for the updated info. Most three wire switches are electromagnetic and can not be bypassed unfortunately. The went to these to prevent us from doing so. There will be a specific voltage the controller need to see so if you have a volt meter, test the blue and yellow wires with the switches closed(engaged) and see if you get any responce on the meter coming out of either of the other wires. I am not sure if yellow or blue is the signal wire back. Let me know
Dan, Journeyman
Category: Heavy Equipment
Satisfied Customers: 4582
Experience: 17+ yrs. shop and field experience with all major brands of heavy equipment and trucks - 1995 WyoTech graduate.
Dan and 2 other Heavy Equipment Specialists are ready to help you

What Customers are Saying:

 
 
 
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
< Previous | Next >
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP
  • I Couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex
 
 
 

Meet The Experts:

 
 
 
  • DR.Cummins

    DR.Cummins

    FIELD SERVICE TECHNICIAN

    Satisfied Customers:

    2105
    16 Years working on Cummins Diesel engines,
< Previous | Next >
  • http://ww2.justanswer.com/uploads/cumminsdr/2010-7-20_204410_ja.jpg DR.Cummins's Avatar

    DR.Cummins

    FIELD SERVICE TECHNICIAN

    Satisfied Customers:

    2105
    16 Years working on Cummins Diesel engines,
  • http://ww2.justanswer.com/uploads/bobbylong/2008-06-12_203111_bobby_mini.jpg Bobby Long's Avatar

    Bobby Long

    Technician

    Satisfied Customers:

    207
    16 Years experience in Bobcat, And International tractor repair
  • http://ww2.justanswer.com/uploads/dusgrant/2010-11-17_001335_06-06-08_1810.jpg DDG's Avatar

    DDG

    Service Coordinator

    Satisfied Customers:

    104
    2 years Truck shop experience, 12 years of Bobcat Compact Equipment experience
  • http://ww2.justanswer.com/uploads/ErikBowers/2009-09-03_140413_Picture_147.jpg Erik Bowers's Avatar

    Erik Bowers

    Owner, operator, mechanic

    Satisfied Customers:

    97
    small engine expert, hydraulic & robotic expert, heavy equip mechanic
  • http://ww2.justanswer.com/uploads/Gtorseth/2010-06-26_230010_n100000021244814_7742.jpg Greg Torseth's Avatar

    Greg Torseth

    Mechanic

    Satisfied Customers:

    82
    Over 15 years of Agriculture and Construction Equipment repair expierence . Factory Trained
  • http://ww2.justanswer.com/uploads/eteck460/2010-1-14_65631_893.jpg Keith's Avatar

    Keith

    Technician

    Satisfied Customers:

    13
    ASE master diesel mechanic 24 years exp.on heavy trucks and trailers
  • http://ww2.justanswer.com/uploads/cjblair502/2010-1-7_33249_WPI_012.jpg C.J.'s Avatar

    C.J.

    Mechanic

    Satisfied Customers:

    11
    9 Years of Heavy equipment field repair 3 years of shop Journeyman tech work