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  1. naheed

    cat 320d hydraulic pressure drop

    hi guys, im having an issue with my 320d serial kgf 01510 after working for 5 mins the hydraulic pressure drops completely and machine goes dead (no load on engine), after that if i switch the engine off and on again the machine starts working normally again for a few mins.checking the pump...
  2. naheed

    CAT 320C INJECTOR PUMP

    got a 320c serial HKT01189 engine MAE06667, its bit down on power and some black smoke, put in new injector nozzles and now want to have the injector pump serviced. anyone who can help me with injection pump adjustment specs for bench calibration? cheers
  3. naheed

    Cat 135h motor grader bluish white smoke

    got a cat grader 135h serial 3yk00148 with 3116 engine #98z17710 and its got a hard start and quite a bit of bluish white smoke. could it be the injectors? any one can help with the injector timing dimension? the specs from the valve cover plate are not visible.
  4. naheed

    CAT D8N STEERING TROUBLE

    hi guys having a problem with my d8 its completely lost steering in both directions! serial 5tj-01036 went out to work last week, was perfect no problems,10 mins into work and boom no steer. did some pressure testing on the circuit and got only 400 psi on the steer motor(which im guessing is...
  5. naheed

    Cat 160h

    Just did a sealkit change on my 160 serial 9ej00775 as it had a leakage on the high range clutch. That all went well problem solved but now got a new prob, I can't seem to drop the transmission pump pressure it should be 400 psi on idle but shows 1000psi. It's got a new filter and I also checked...
  6. naheed

    transmission overheating

    hi all, i have a cat it38g serial jan 00443 which i bought not long ago. the transmission filter gets so hot even at idle, machine not in operation and even hotter when its working. put a new filter and a new bypass valve but still no difference. one thing i noticed when having a check on the...
  7. naheed

    Cat d6r error code

    Just done some repairs on my dozer 5LN01615, have a problem with the transmission it jams up sometimes and than frees when i select a different gear several times. Tried calibration with an et but as i get started I'm getting an error code 0002,active diagnostic present. There are no active...
  8. naheed

    cat d6r slow steering

    got and issue with my d6r serial 3zn00731, the steering has gone really slow both sides! transmission gears forward and reverse all ok. service brake and hand brake functioning ok. anyone had such an issue? would be great to get some advice on where to start and maybe pressure testing or case...
  9. naheed

    injector nozzle timing

    hi, have a cat it 38 g, with a 3126 engine and its got bit of black smoke. i think the nozzles need to be timed. would really appreciate if someone could guide me through how to do. cheers
  10. naheed

    cat roller seized engine valve

    im puzzled got a major problem,i just overhauled a cat cs 533 e engine 3054(perkins by the way) put in new pistons,bearing etc,after some good hours of running in went for a test full throttle with vibration on and it starts missing about 20 mins later. finally opened the valve cover and found...
  11. naheed

    bulldozer rates

    hi, ive always been hiring out my machines on an hourly rate but now getting a job where im going to be paid per cubic meter! so just wondering how to figure out rates for my d8n and d6r rates per cub and how much each machine would do in an hour?
  12. naheed

    Champion grader

    got a champion grader 720A in for transmission repairs. it just doesnt move in any gear! forward gears 1 through 8 and reverse 1 through 4. the controller seems fine not showing any errors and i checked all solenoids and wiring couldnt find any issues there. checked pump inline pressure...
  13. naheed

    Fitting ripper on cat d-8n

    big question here i just got a d8n but it didnt come with a ripper, it had a hydraulic winch on it! i have an old scrap d-8 h, which has a single shank 4 barrel ripper on it, so question is can the d8h ripper fit on the d8n?? if so are there any modifications required and what hydraulics...
  14. naheed

    boom trouble with hyundai 290

    just did a complete seal change on the main control valve of my hyundai 290 NLC-7, all went well apart from boom down function. it works but has lost power and if you boom down doesnt lift the machine off the ground. but if i do the same with arm out function it immediately lifts off ground...
  15. naheed

    Daewoo excavator s 170-111 piping trouble

    been having major issues with this machine! previously hydraulic been overheating and had a worn out main pump, just replaced with a new pump hoping it would cure overheating but it hasnt. machine has alot of power now! control valve was leaking alot so got that out and replaced all the...
  16. naheed

    recomended fluids

    i just got a komatsu wb93r backhoe loader and not sure what fluid to use in the brake master cylinder? right now its got a thick dark coloured oil in it!
  17. naheed

    320 D overheating

    just imported a cat 320 d from uk. clean 5600 hrs. had it serviced and put it to work but unfortunatley after an hour of hard work the engine temp almost got to redline. pressure cleaned the radiator, although wasnt clogged, so put in a new thermostat from the local cat dealer with some new...
  18. naheed

    cat d8l transmission trouble

    serial number 7yb 00800. having major issues with my dozer. stopped using it because it was unable to work. as you shift into first gear, it doesnt engage you need to rev it quite abit to engage it and move and once its moving if you reduce rpm the gear feel like its gone back into neutral...
  19. naheed

    Excavator hydraulic oil overheating

    hi, im working on a daewoo solar 170-111. it has a history of hydraulic seals leaking everyday! if im not wrong i think its due to hydraulic oil overheating. when the machine is working you can barely touch any hydraulic part. after replacing quite a number of o rings on the pump and control...
  20. naheed

    cat excavator 320 b

    hi guys, i have a cat 320b made in japan. lately ive noticed the hydraulic functions have slightly slowed down and so has the machines power. i did a full engine service which has made the engine smoother and i dont feel it lagging in power! i also changed all 3 hydraulic filters but still...
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