• 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. anuradha

    BAUER Rotary Drilling Rig ( BG 26 )

    Hi all ! Does any one have working principles/ system operations/schematics or service manuals related to these Bauer BG Driling rigs. If some one has service and repair documents regarding these machines please let me know. Thank you. anuradha.
  2. anuradha

    BAUER Rotery Drilling Rig ( BG 26 )

    Hi all ! Does any one have working principles/ system operations or service manuals to related these Bauer BG Driling rigs. If some one has a service and repair documents regarding these machines please let me know. Thank you. anuradha.
  3. anuradha

    Komatsu pc 120 - 6E Stick couldn't retract fully & slow movement.

    Hi, Komatsu pc 120 - 6E Stick doesn't retract fully & slow movement. At the moment don't have the serial number. In this machine bucket also slow in operation. Stick doesn't retract fully and slow in operation even without a load. when control levers bring to neutral position stick extend...
  4. anuradha

    Cat 317b lacks power

    If you can, remove the pilot pump relief valve and disassemble it and see wheather is it good in condition. If the pilot relief valve is faulty or debries stuck in it, then sometimes it will open before the system pressure rises to its intended pressure limit.
  5. anuradha

    Cat 317b lacks power

    Hi, That means it doesn't have enough pilot pump delivery pressure. It may be the cause of your problem.
  6. anuradha

    Cat 317b lacks power

    Hi, Did you check the pilot pump delivery pressure at the pilot manifold pressure port near the pilot relief valve ? If you didn't check, place the machine on to power mode 3 using monitor pannel power mode selection button and place the engine speed dial to position 10. Turn OFF the AEC...
  7. anuradha

    New year

    May all your wishes and your family's wishes come true, may your life be successful and happy and meaningful, and may you all have a healthy and happy new year!!!
  8. anuradha

    Christmas greetings

    Hi everyone, Wish you all a Merry Christmas !!!
  9. anuradha

    cat 312A does not show coolant temperature gauges hydraulic oil fuel level

    Hi, E 01 - engine oil pressure is too low E 02 - engine coolent temp. is too high E 03 - hydraulic oil temp. Is too high E 15 - governor backup sw is in manual position or governor motor circuit is open. E 18 - proportional reducing valve circuit is open. Did you check whether, both the...
  10. anuradha

    CAT 330LN Monitor and Controller error

    Hi, As you said, though the egine speed dial worked properly still we can't think that the controller is good 100% . Because it is a seperate circuit from the communication line. In this case if the wirings are good, then either monitor or controller is faulty. So it is better if you can...
  11. anuradha

    CAT 330LN Monitor and Controller error

    I have sent you the wiring diagram and checking procedures of wiring on this issue, please check your PM. And here i have attached some pictures of the controller inside, those are not that good in quality but i think you can get an idea by seeing those.
  12. anuradha

    CAT 330LN Monitor and Controller error

    Hi, I looked at this thread after seeing Nige sir's PM. As explained above, 02 alert indicators on the monitor, yellow led on the controller represent the communication error between controller & monitor. First thing should check is the wiring ( 02 data lines between monitor & controller ) &...
  13. anuradha

    311B PRV Voltages/testing

    I couldn't mention earlier, these specs are for a 8GR, but i think, this same specs will match with 8HR as well.
  14. anuradha

    311B PRV Voltages/testing

    if the 'implement/swing pressure switch' is bad then this problem will happen. check whether is it working properly.
  15. anuradha

    311B PRV Voltages/testing

    hi, As i know PRV solenoid resistance should be with in 9-15 ohms. voltage should be 6-9 Volts in normal mode(backup sw @ auto position) when all control levers are in neutral position. when control lever operates voltage goes down. These voltages should be checked between two wires without...
  16. anuradha

    CAT E120B Swing problem

    Hi sara, Did you able to solve the problem using these same steps ?
  17. anuradha

    Cat 317b lacks power

    What Do you mean here as pitot pressure ? Is it power shift pressure on power shift pressure port or pilot pump pressure at pilot pump pressure port ?
  18. anuradha

    Cat 317b lacks power

    hi, if you are able to perform the PRV Sweep Test then you will be able to find whether correct current signal comes to the PRV from the controller & also you can find whether PRV sends the correct PS Pressure to the regulators. if the pilot pressure is below the spec of the pilot pump then...
  19. anuradha

    Cat Excavator 312 1997 Hydraulic Hose Diagram

    Thank you sir for correcting me on this issue. And this information will be very much useful to me as well. I really appreciate your knowledge on these machines.
  20. anuradha

    Cat Excavator 312 1997 Hydraulic Hose Diagram

    We also do have a 312 7dk here. And its very closely related with 6gk model. wiring diagrams and all the other manuals which are used to 6gk model can be used with 7dk as well.
Top