Friends' ( a father and son ) 10,000hr excavator has lain useless for 12 months after this "sudden" developement. Hydraulic technician has checked pressures as correct and is unable to help further, auto electrician determined the problem to be fuel related, so filters changed, tank cleaned (nothing extraordinary found), and another mechanic wondered about the ECU, but didn't have the correct volvo connector for his diagnostic computer. Are there any tips to rule out hydraulic disfunction, or engine or ECU problem? They have had this machine for more than half of its hours, mostly is used with a custom forestry grapple/saw/rotator head, but was being used with a bucket in the weeks prior to this event. This is a side activity to their main business, but they are keen to bring the machine back to work, thanks to anyone for some input into this problem! The serial number is V18171
I guess the first thing I would do is establish fuel pressure. Between 45 & 75 psi running. Full throttle, no load should be closer to 75. If you have fuel pressure and it doesn't fall off, you'll want to inspect your turbo. Make sure the shaft isn't stuck. Also, check air intake piping to and through the air cleaner. Laying dormant that long, you could have a bird nest, bees nest, vermin, anything sucked up in there. When in doubt, pull the cover and let it breathe through the filters. The same can be said for the muffler. You may have a rotted or broken baffle choking exhaust flow. You can unbolt it to let it run free as well. Little noisy, but fine for troubleshooting. Anything deeper than mentioned, you'd probably hear or feel other issues. Knocks, misses, fuel leakage etc. Hydraulics? What's the condition of the oil. Did you drain a gallon or so off the bottom first thing in the morning. If the main relief was subjected to water, it may be damaged. I don't know how the guy can check it if it's not able to support a load. Just my 2 cents. Good luck
We had a 240b and found that problem( suddenly dying ) was caused by failing relays in the fuse panel. Look for those black ice cube relays, replace them all. They get really hot in the volvos
Thanks FWF for your prompt reply! The owner didn't know if any of your suggested areas had been checked. We will go and have a look Tuesday or Thursday, machine is 40kms away. I read in one of your previous posts, mid last year concering a EC240CL, where you gave instruction on getting the screen to give both low and high fuel pressure readings. Do you know if that feature is available on the EC210B? I find no reference to it in the owners manual. Thanks Watglen for sharing your experience also, have added that to the list too. Will get back and let you know..........
No, unfortunately the B series did not afford such a luxury. In the B series, you're only concerned with low fuel pressure since it has individual pumps for each injector. There is no common high pressure rail. I would strongly suggest checking the oil quality first and foremost. If there's water on the bottom, it's gonna be a rough road ahead. Not impossible, just rough with a lot of physical removal , cleaning and polishing.
Well we did have some luck FwF! The turbo is toast, totally siezed, with no apparent downstream trauma. So we will replace that and then see about a few codes that were showing up. Thanks for your help!
Yeah, that's a problem! LOL