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electrical

  1. S

    2009 Caterpillar 277c glow plugs not getting power

    Hey y'all I recently purchased an 09 cat 277c but it has some starting problems. I insert the key and switch it to the on position wait until the unit beeps and then try to turn it over but nothing. It does crank but doesn't actually run. I tried spraying a bit of starting fluid on the air...
  2. W

    MSS Malfunction?

    I've got a 2002 CAT Excavator (grey market). Having intermittent problems with hydraulics not responding at all. I've been told that it might be the result of the MMS system not working and shutting hydraulic system down. Can anyone provide info on this system? Can it be fixed, replaced...
  3. W

    CAT Excavator Hydraulics Failure

    2002 CAT 313c CR Problem: Turn key on. I start by jumping at the solenoid. Purrrs like a cat. Had to turn off engine (at the key) as hydraulics don't respond. Repeat this several times until hydraulics work. When they work, they work perfectly. It's as if hydraulics aren't getting signal to...
  4. shawnseveras

    replacing old hydraulic fan on cat 246 skid steer

    so long story short i am replacing the old hydraulic fan motor and assembly. i will be installing an electric motor in its stead. i will be disconnecting the offload line part number- 148-8385 and putting a plug there. then i am disconnecting the inflow line for the hydraulic fan motor and...
  5. P.W.D Equipment

    John deere 244j cooling fan always on

    2013 john deere 244j (leihberr) has an issue with the cooling fan coming on within the first 5 minutes. The temp gauge spikes up and down. But the machine doesn't over heat. The cooling fan seems to fluctuate with throttle applications. High throttle high fan rpm low throttle low fan rpm. Anyone...
  6. B

    Volvo ec210blc troubleshooting.

    Hey fellas, new on this forum as of today. Hoping to find some much needed information as I am working in a remote environment and do not have convenient access to a dealer or HD mechanic....as many paid trips I can avoid, the better. We’re currently developing our property up in Bamfield BC...
  7. B

    P&H Omega 40 Crane electrical wiring, PLEASE HELP!

    Hello everyone! New to the forum with my first question. My family owns a 1980 Omega 40 crane and we need the wiring schematic for number 37 in the diagram attached. We had someone rewire it and he did not do the job right. Now its stuck and not operatable. Any help would be appreciated. I...
  8. A

    Bobcat 331 not charging

    New to the page. I have a 2004 bobcat 331 that I purchased and am starting to regret buying a used machine lol. The alternator is not charging on the machine. I checked all the fuses they are good. Checked belt tension and had alternator tested good. This alternator has 2 wires coming off the...
  9. Auagminer

    Kodelco SK210CL-9 Shop Manual/Electrical Diagrams

    Greetings to all from Hermosillo, Sonora Mexico. My first post in this forum. I need some help with a Kodelco SK210CL-9 excavator, Serial number: R0003573, Product identification number: YQ13-10215. The machine belongs to a client and it has some serious electrical problems due to having been...
  10. L

    Scat Trak drains batteries while running

    I have an old scat trak that we use in the winter to push snow and the lights will randomly start to dim and it will slowly lose battery, it could happen after 11 hours or it could happen after 5. New alternator has been installed after the first "episode" and that did not make a difference. We...
  11. D

    Cat 259d low voltage

    I keep getting a low voltage message on machine replaced the battery message went away for couple days than came back, tested the battery it was good so replaced the alternator and voltage went back up to around 14.2v for about 2 days now its dropping below 11v with the error message and wont...
  12. CenterlineShop

    Cat D4g electric issue

    My 02 D4g just started this problem. Operating the other day, electrical light came on but I did not have any problems with the function of the machine. Starts fine and lights work. Started this morning, no light, moved the machine about 30 ft and the light came back on. I have had problems...
  13. G

    2012 John Deere 318 D Locked Out Boom/Bucket Functions

    Checked all sensors and switches and everything is functional. Drive and Reverse Functions No Issues. Pressure Test Hydraulic Pump for boom, bucket, and auxiliary which is separate from drive pump and has sufficient pressure (3000 psi +/-). Bucket will curl out but minimal. Boom totally locked...
  14. M

    ASV RC-100 Interlocks

    I picked up a 2004 RC-100 and did a bit of clean up to the console which was rusting. I just put it all back together and go to start it with no luck. Glow plugs come on to the left and low speed, engine oil light comes on when I go to start. I hear the fuel pump working but the starter won't...
  15. E

    Volvo EC210

    I have a Volvo EC210 that I am having issues with the display unit in the cab of the excavator. None of the functions work on the display, once I press a button none of the lights show up like they should. The whole display unit does not seem to be receiving power, I have checked the heater fuse...
  16. TEX32

    Technician requires some insight ( Energized frame w/ batts off )

    Afternoon fellas. Licensed tech here ( 20 years ) Need a hand trying to figure this one out... Details: Cat 980G. 4 batteries, 2+2 set up, 24 volt system. ( obviously ) - When batteries ON, frame is grounded 100% - When batteries are shut off, frame energizes to 95% source voltage. ( 25.6...
  17. R

    Komatsu D-155AX-3

    Looking for someone to help me find where I can get a HMT controller tested. Went through trouble shooting guide and concluded that the HMT controller is bad but will cost $4300 and would like to get it tested before expending this money.
  18. G

    259D no start w/key will start with power relay

    I have a 259D (FTL14492) (ESN 8HN5725), with a rather confusing issue. cold: with key no start. key on engine off if you press in the relay it will start no issue cold - warm: will start same with relay, and will kind of start eventually after a few cranks with key and flutter pedal hot...
  19. F

    CAT 257B3 electrical - Front door safety

    I have a 2011 257B3, everything works when the dummy/jumper plug for the front window is plugged in. Once I plug in the connector for the door, nothing works as if its not plugged in ( no hydraulics, wiper etc) no broken wires behind door cover, everything seems to be intact. Any ideas on where...
  20. F

    JCB JS160 problem, won't start

    I have a 2008 JCB JS160 tierIII and it got 6800 hours. I have owned it 7 months now and had a few fault codes, mostly damp days, nothing serious yet. Today i washed it with pressure washer to clean it before service. After i let it dry few hours i had two new fault codes and engine won't fire...
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