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  1. Liviu Popescu

    Cat 325B Hammer Install - Errors and Advice

    Hi all, Just wanted to update on progress - replaced the 2 AC1 and AC2 solenoids and errors have gone away, however we now have a new problem. When you press the hammer button, the hammer works for 1 second and then the auxiliary controller switches off and hammer stops working. If you turn...
  2. Liviu Popescu

    Cat 325B Hammer Install - Errors and Advice

    Hi, this is the module I have which was showing error 3 and error 5, I’m pretty certain it’s working fine, managed to cucle through the various modes and number of hours.
  3. Liviu Popescu

    Cat 325B Hammer Install - Errors and Advice

    Hi all, I’m trying to install a CAT H140 hammer on my 325BLN, serial number 8FN00854. The hammer does not work and I have gone down the route of troubleshooting errors. First set of errors I get on the monitor are 4208 & 4209 - they refer to spare PWM sensor 1 & 2 being open. I’ve spent days...
  4. Liviu Popescu

    CAT 330LN Monitor and Controller error

    Just a small update, the swing function continues to lock-up as well. I believe this and the track getting stuck must be connected somehow. Will continue to read and try to understand what it could be.
  5. Liviu Popescu

    CAT 330LN Monitor and Controller error

    Any tips on what should we try next then? Should we try to take the valve apart? Anything special we need to pay attention? also is the PRV avenue closed? It made sense what you were saying with it sticking, my only other question on that would have been that the POwershift line is common for...
  6. Liviu Popescu

    CAT 330LN Monitor and Controller error

    They measured the pump as you said with the boom uparm in levers to the max and they were ok. I have to emphasize they only had pressure gauges and not flow meters, but I guess we can rule out the pumps
  7. Liviu Popescu

    CAT 330LN Monitor and Controller error

    Hi, the operator which went with the CAT guys said they measured the pressure at the travel motor and also on the pilot line. When the track gets stuck the main pressure drops to zero but the pilot pressure stays the same. He seems to remember that it was around 4000 psi before it gets stuck...
  8. Liviu Popescu

    CAT 330LN Monitor and Controller error

    Right, moving on from this CAT came to see the machine but didn’t really solve anything. Their work statement says: - Checked pilot pressure from pedal and pump to control valve - all ok - Checked left track plunger - all ok - Checked implement and boom raise pressure sensor - both defective -...
  9. Liviu Popescu

    CAT 330LN Monitor and Controller error

    Hi all, will post a few updates as it’s been a long and painful and unsuccessful month so far with this. Keep things short, we have opened this valve section and found the sleeve to be broken in half. All other components looked ok. We bought just to be safe valve + springs + plunger + sleeve...
  10. Liviu Popescu

    CAT 330LN Monitor and Controller error

    Hi John, I told a lie, it’s not seprated per se, it’s within the main housing where the upper and lower pump are. Just for my knowledge, wouldn’t the pilot filter capture the debris anyway so the spools in control valves wouldn’t be contaminated?
  11. Liviu Popescu

    CAT 330LN Monitor and Controller error

    Yes it does have a seprate one, however my judgement is currently excluding pilot pump issues as the right track and all other commands work. I’m not saying the pump isn’t bad or worn, but wouldn’t it be more likely that this is a control issue? From what I’ve thought so far I can only think...
  12. Liviu Popescu

    CAT 330LN Monitor and Controller error

    Thanks John - what would be the next step?
  13. Liviu Popescu

    CAT 330LN Monitor and Controller error

    Hi all, Small update - we had somebody in to look at the machine but there wasn't a great deal of success. They measured the inlet pressure on the pilot oil manifold and it measured around 35 bar (around 500 psi) which they said is within spec. They suggested that we focus our attention on the...
  14. Liviu Popescu

    CAT 330LN Monitor and Controller error

    John - can you tell me what/where the case drain is? in terms of filters e have identified three filters: 1 is the 4I-3948, the other one is 094-4412 in the hydraulic oil tank and there is also a 3rd one 108-8713 (also in the tank rom memory - this was very hard to find/order as it's not usually...
  15. Liviu Popescu

    CAT 330LN Monitor and Controller error

    Small update - it seems that the stick and swings are slower than usual. However, if you move the boom whilst travelling forward, both tracks work (albeit slower) and the left one doesn't get stuck. I've read somewhere that when you are travelling straight and use other commands it switches both...
  16. Liviu Popescu

    CAT 330LN Monitor and Controller error

    Hi John - thanks for the explanation. Do you know if we can remove the cover of the final drive (the one with a lot of screws) to see what's inside without removing the track, final drive from the machine? Or would that not work. We are behind with our production and we need this excavator as...
  17. Liviu Popescu

    CAT 330LN Monitor and Controller error

    Hi all, removed the oil from the final drive, there were no metallic shavings or anything in it, however the colour was of a grey-ish nature. We pulled a little out of the other side and it was black (in the white cup). The oil was changed this winter and the machine doesn’t have more than...
  18. Liviu Popescu

    CAT 330LN Monitor and Controller error

    Hi all, they are going to look at the oil today hopefully - grasping straws a bit but if you look at min 2:52, when it swings left right, the track motor seems to want to move forward backwards. Could be nothing or something. I've found an issue with this but it's unlikely this information that...
  19. Liviu Popescu

    CAT 330LN Monitor and Controller error

    Hi John, would that cause the swing to stop working though?
  20. Liviu Popescu

    CAT 330LN Monitor and Controller error

    Hi All - update on the above situation. we did not get a chance to verify the wiring today because we are now experiencing another issues. The left track is getting stuck. It seems to do it when you are pressing the pedal to the floor, if you go half-way then it does not get stuck. Also when it...
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