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  1. J

    2015 257d won’t crank. Power is fine

    This was working last time I used it and now dead. Screen comes on. Prescense detector works and screen light goes off when down. Solenoid doesn’t click, nothing on start switch. I don’t find any lights for the door sensor on or off and don’t remember if it will start with the door open...
  2. R

    Cat 315FL 2017

    Evening all, I have a 2017 Cat 315FL. “Tdy10762” 4000hrs approx. Started having issues with a E1309 code, (E1389 as well but sounds like that’s just the warning code) coming up that will shut down the machine after it goes into stage 3. First time it happened I was able to run the after...
    • RipCon
    • Thread
    • 315 cat def e1309 lownox
    • Replies: 3
    • Forum: Excavators
  3. A

    Cat IT28B. No movment forward or reveres

    Hello! I have a 1990 Cat IT28B with 22,000 hours (serial number: 5SD00953). It won't drive on any gear, neither forward nor reverse. Before this issue occurred, the machine operated fine. I did notice that when shifting from gear 2 to gear 3, there was a slight hesitation—the shift felt like...
  4. cvjune10

    CAT 299D3 Revs Up Right After Key is Turned To Shutdown Machine

    CAT 299D3 (DY9) slightly revs up and it sounds like the hydraulic fan revs up a little bit right after to turn the key to the off position. I'm going to calibrate the fan today, but beings there is no codes I wondered if this was a normal procedure and what the point of it is. I also have two...
    • cvjune10
    • Thread
    • 299d3 cat electrical hydraulic skid steer
    • Replies: 0
    • Forum: Skid Steers
  5. P

    Cat 943 with 3204 piston question

    I'm restoring a cat 943 track loader and hoping someone can answer this question. It's a 1981 versión serial number 31y01018 engine 3204 dt... serial number 10x01169, arrangement number 4n8376, non turbo... It has the 2 ring pistons and I was told by another mechanic to upgrade to the 3...
  6. A

    CAT 257B stays running after turning key off

    I have a CAT 257B. It has this weird issue where it will start up and run fine, but when you turn the key off, the machine doesn’t shut off. It acts like the key is still in the on position. I can get the machine to shut off by unplugging a plug, which works fine but obviously I want the key to...
  7. E

    CAT TH255C Throttle issues

    Good afternoon, I have a CAT TH255C Telehandler that is having throttle issues. I go to turn it on and first it throws code 91:4 then after turning on it idles up to 1600RPM and the throttle pedal is unresponsive. Is there anyone that has an electrical schematic or has anyone had this happen...
  8. M

    Help identifying an old CAT pull behind grader

    Hi folks, I'm trying to help my dad identify an old Caterpillar pull behind grader that he has on the farm and wants to restore. We're looking for a manual and any resources or schematic that could help with the project. He says the model is an Iron Mule, but I don't get any CAT grader model...
  9. M

    Cat 735 rock truck issue loosing all gears

    I've got a cat truck serial number CAT00735TB1N01044 it's a 2008 , has a reman transmission in it , when brought back out to site the operator can drive it for a few hours then once put into neutral it will loose all gears , once it sits for a while it will go and work for a few more. Hours ,it...
  10. M

    1970’s d5 dozer

    Looking for a little help on my d5 dozer. Im still pretty new to dozers and am having an issue with the bearing on the rear of the dozer. How it happened. I was pushing limber in the back 40, drove it back to the road and the rear bearing either locked up or bolts broke on the case (didnt know...
  11. N

    Cat th360b 2005

    Hi all Looking for abit of guidance Currently the machine only has tilt and steering functions within the hydraulics system None of the joystick controls or jacks will work Have so far tried Removing hydraulic disable solenoid in rear valve chest (updated version with plastic cover ) tested...
  12. E

    Loader arms raising on their own when moving

    Good morning, I have a 259d3 skid steer that is having problems. When moving the machine, specifically backwards the loader arms start raising on their own. Was wondering if anybody else has experienced something similar?
  13. S

    2003 308 boom drifts one way but not the other

    03 cat 308 c cr. 6000 hours. If you raise boom all the way up and turn loose of controls it will fall to the ground in probably 20 seconds, but you can pick the machine up with the boom and it will stay there all day long. Re did packing/ seals in cylinder, still same problem. Assumed it was...
    • Stevenstl12
    • Thread
    • boom cylinder cat cylinder drift excavator hydraulics
    • Replies: 3
    • Forum: Excavators
  14. Swampboy99

    Cat 329 EL “Warm Up Mode”

    Cat 329 EL 8867hrs Serial# PLW01233 Only code is 41-6 (8v dc supply current above normal) Issue we are having is it will intermittently go into “warm up mode” and derate power Some times it won’t happen for a few days and just be for an hour and others it will be constant for days Machine...
  15. O

    CAT GC320 E1379-2 Mechanic fault

    Hello everyone, today I want to tell you about a problem I have with my CAT GC320 2018 model excavator. Today, while working normally like every day, I suddenly encountered a fault warning on the operator screen. First, I encountered the "E1379-2" fault code and then my excavator gave the...
  16. C

    Cat 289C hydraulics locking out but no code.

    help anyone. My skid steer cat 289c I hop in start it I can lift arms up but as soon as I come down on the arms it will come down a fraction then locks out the hydraulics but the lockout light doesn’t come up the air filter restriction light comes on switch it off and it all goes away until I...
  17. J

    CAT 980XE ISSUE WITH WEIGHER

    Does anyone know how to get the 0.0 back on the weigher screen see image attached it just shows *** in the bucket.
  18. K

    HELP Missing CAT Serial number to replace radiator

    Hi all, I think I might be in trouble on finding a radiator for my cat mini ex. Had it for about 2 years and the guy I bought it from thinks it’s 303.5 but there is ZERO indentification on it. All I have is measurements and the fact that it’s got a Mitsubishi engine. there’s no return policy so...
  19. E

    Need part Number or name of part for 299D3 XE

    Good morning to you all, Im having issues finding a part number for this 299D3 XE. The part in question is a cover that covers the quick couplers. Wondering if anybody could help out. Thanks!
  20. D

    Cat 943 alternator light

    Hi all! Been a lurker for a bit and have realized the amount of knowledge that people have on here. I have a cat 943 sn 19z00916 with a 3204. So far, the issues I have came across I have been able to fix but they've not been electrical until now (mostly). I bought this recently and changed out...
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