• Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!

Search results

  1. 9

    CAT D9N Low Power Issues

    Approx 9000 hours engine.
  2. 9

    CAT D9N Low Power Issues

    Ok. Thanks fellas. Serial: 48W24734 In regard to testing, do I just drop the blade and put it in 3rd gear full rpm and get a check on boost pressure? Thank you.
  3. 9

    CAT D9N Low Power Issues

    Later model Cat D9N with very low power issues. Serial 1JD00972. Black exhaust fumes when engine is under load. Tracks will not spin now when machine is under heavy load- ie when pushing a tree or digging deep (would normally expect tracks to start slipping). The strange thing- turbo is always...
    • 988Driver
    • Thread
    • aftercooler caterpillar d9n dozer low power turbo problems
    • Replies: 10
    • Forum: Dozers
  4. 9

    Cat 988F Air Conditioning Compressor not engaging clutch

    Hi all, I have recently replaced the blower motor in the air conditioning unit on my 988F. Prior to this all pressures were fine and the unit was working well. Now the clutch is not engaging on the compressor. I have voltage to the compressor and have just replaced the compressor thinking...
    • 988Driver
    • Thread
    • 988f air conditioner air conditioning caterpillar compressor electical
    • Replies: 0
    • Forum: Wheel Loaders
  5. 9

    Considering Volvo G940 Grader

    Than thank you @Fatgraderman for your input. What year model was your 940B manufactured? The one I am looking at is a 2008 model. Similar powered John Deere models are approximately 50k extra id say.
  6. 9

    Considering Volvo G940 Grader

    Hi all, Just wondering everyone’s thoughts on the Volvo G940. I am probably priced out of a Caterpillar equivalent unfortunately but the volvo machine is within our budget. Would it be equivalent to a 140H? Looking forward to seeing what people think. Cheers.
    • 988Driver
    • Thread
    • caterpillar caterpillar 140h g940 grader motor grader volvo
    • Replies: 18
    • Forum: Motor Graders
  7. 9

    Cat 988F Braking issue

    Hi all, Just after some ideas in regards to a braking issue on my 988F. If the brake is held on for a short period of time I am finding that the warning horn goes off and the park brake applies itself. I’m sure there would be a leak in the system somewhere, either the valve group or accumulator...
    • 988Driver
    • Thread
    • 988f brakes brakes on wheel loader caterpillar
    • Replies: 7
    • Forum: Wheel Loaders
  8. 9

    Cat D9N 3408 coolant loss

    Gday guys. I have started to find a few issues in my 3408 engine. Coolant loss in my system has been approximately 20-30 litres over 15 hours however most of this is expelled through the cap when I take it off to check it sometimes. The engine has not been getting hot however the radiator is...
    • 988Driver
    • Thread
    • 3408 caterpillar coolant in oil d9n head gasket? turbo
    • Replies: 7
    • Forum: Dozers
  9. 9

    Cat 988F Transmission/Torque Converter Issues

    Gday all. New day, more transmission problems. Cat 988F seems to be now slipping in all gears. Thought it might have been torque converter problems as I had been digging dirt and towards the end of the day seemed to be lacking pushing power in order to fill the bucket. No wheel slip when...
    • 988Driver
    • Thread
    • 988f caterpillar transmission wheel loader wheel loader transmission
    • Replies: 3
    • Forum: Wheel Loaders
  10. 9

    CAT 988F Transmission issues

    Mark250, Yes mate. Started working and was going well. Found a bit of what appeared to be clutch debris and fine metallic shavings in the screen which was expected. Worked it for a bit, seemed fine. The last day the machine was used it was very sluggish to start off, with slow movement in...
  11. 9

    CAT 988F Transmission issues

    Hi Bluox, after fixing the previous issue, the loader is now not moving in forward and reverse at all. I seem to think that I have no pressure in the system and the pump is possibly not working. Had been working fine up until this morning when i started it. Reasons for thinking this: After no...
  12. 9

    CAT 988F Transmission issues

    Have discovered a faulty valve in which the spring hasn’t been working properly, hence bringing about a conflict between forward and reverse. Have since replaced the filter, cleaned the screen and looking to replace the oil. Am wondering what I could use to flush the transmission rid of shavings...
  13. 9

    CAT 988F Transmission issues

    Oil doesn’t smell too bad and the transmission hasn’t been getting hot. Filter only has a small amount of metal shavings. The other day I changed the oil and filter. Filter light stopped illuminating, however after about 10 mins of use it started up again and consequently about 30 mins later no...
  14. 9

    CAT 988F Transmission issues

    988F now refuses to operate in any of the forward gears. Have swapped solenoids and valves between forward and reverse and still no change. Machine can operate in reverse. Seems to engage the forward gears but with no movement. Thinking it might be the forward clutch pack in the transmission...
Top