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  1. Deimos

    Suction Hose for Cat 307SSR

    In the diagram, is this the lower hose that goes to the pump?
  2. Deimos

    Cat 308B SR Mini 8 ton Excavator

    Since your excavator has pilot-operated joystick controls, there are two possible causes. The joysticks are faulty, or the boom and swing valves are faulty.
  3. Deimos

    D8N Engine Seized

    If you don't have a special tool for turning the engine, try the tried-and-true method of using a Stilson wrench. Take a Stilson wrench of the appropriate size and use it to turn the engine by the front damper.
  4. Deimos

    CAT 248 No hydraulics

    I was right in assuming that the charging pump or its drive had failed. The splined connection in these pumps is a weak point, and it often strips the splines.
  5. Deimos

    Mitsubishi MM30SR Workshop Manuals

    Write to me, I will help you with obtaining any documentation for Mitsubishi and Caterpillar mini-excavators for the Japanese market.
  6. Deimos

    Mini Hyd Excavator 302.4D, fuel gets into the oil

    We removed the injectors and fuel pump for testing. We checked the injectors, and one of the three was leaking fuel. The pump hasn't been tested yet.
  7. Deimos

    CAT 3320C slow to start lately

    It's very likely that when the engine is turned off, fuel from the low-pressure circuit flows back into the tank. The fuel injectors may also gradually begin leaking fuel into the return line.
  8. Deimos

    Mini Hyd Excavator 302.4D, fuel gets into the oil

    Hello everyone. The CAT 302.4D excavator with the LJN prefix is presumably equipped with a Yanmar engine. The problem is that fuel is leaking into the oil, and the oil level has risen. Any ideas on the weak point of these Yanmar engines? And what is the most likely source of fuel leakage into...
  9. Deimos

    sevice manuals

    We have complete service manuals for BHL CAT series C, D, E, F, and F2. We cover almost all prefixes, but please inquire individually. Message PM if you're interested.
  10. Deimos

    CAT C7_C7C ECM Replacement

    Hello everyone! Does anyone have an ECM Replacement configuration file for the C7 engine with the C7C prefix? This engine is installed on a Cold Planer PM102. The file can be taken from another machine, as long as the prefix is C7C. Thanks in advance.
  11. Deimos

    D6r transmission sensor

    It's possible the problem isn't with the sensors, but with the sensor wires. That's exactly what happened in the photo above.
  12. Deimos

    D6r transmission sensor

    Unfortunately, you'll have to remove the entire transmission. Here's a photo from a similar bulldozer with a different prefix. The number of sensors may differ from yours, but the principle is the same.
  13. Deimos

    CAT 320D(C6.4 Engine) -7 injector active error code

    Yes, there is a "Fuel System Verification Test." However, this test is performed with FMI 02 (Erratic, Intermittent, or Incorrect) fault. In this case, the fault is FMI 07 (Not Responding Properly). However, to verify, you can still try the "Fuel System Verification Test." Sometimes, after...
  14. Deimos

    CAT 320D(C6.4 Engine) -7 injector active error code

    You're right. If there are no shorts or opens on the injectors, and if all the injectors are original with the correct trim code, then the engine ECM is faulty. The fastest and most accurate way to check is to connect a test ECM taken from a similar excavator.
  15. Deimos

    2021 cat 259D3

    When connecting a hydraulic hammer, usually only two hydraulic lines are used: Hydraulic Supply and Hydraulic Return.
  16. Deimos

    2021 cat 259D3

    The bottom thick fitting is the Hydraulic Return. The top one is the Hydraulic Supply. The middle, thinnest fitting is the Case Drain.
  17. Deimos

    Cat 299d oil pan leak access issues

    I assume you can disconnect the hydraulic pump from the engine, unscrew the engine mounts, and try raising it 2 inches. If that doesn't work, first follow the engine removal instructions. Start By: Remove the radiator, air cooler, and hydraulic oil cooler. Refer to "Radiator, Aftercooler, and...
  18. Deimos

    Cat 299d oil pan leak access issues

    The manual doesn't say whether the engine needs to be lifted. In any case, you should try to unscrew the oil pan and pull it out. If that doesn't work, then try lifting the engine.
  19. Deimos

    Dozer Track Roller Lifting Fork Assemblies 183-4799

    Does anyone have a track roller installation tool #183-4799? I'm interested in its dimensions so I can make one myself. A drawing would be even better.
  20. Deimos

    CAT 313C_WSA

    Hello everyone. Does anyone have an electrical and hydraulic diagram for the Japanese 313C excavator with the WSA prefix?
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