It’s been a busy summer. Between my 5 or 6 main customers I don’t have any trouble staying busy. Steel plant calls me out a couple times a week, it’s always some oddball $hit there. Yesterday is was their yard dog again, brakes wouldn’t release after you stepped on the pedal. I figured QR valve, swapped it and it still wasn’t right. Got to looking at things and they had the line for the service brakes plumbed to a supply port on the foot valve, swapped it to delivery and all was well. How it worked as long as it did I’ll never know.
Biggest project of late is a D65 Komatsu that slowly overheats. Ran the normal tests and narrowed it down to the fan not turning fast enough. A little back and forth with Vetech and DMiller plus a hydraulic flow test condemned the pump…..which is not exactly easy to get at. Pull the hood, rops, cab and floor plate to get at it. Clean out several 5 gallon buckets worth of dirt, lots of air and brake clean to get it where I can work on it.
I got the pump swapped today and the floor plate back on. I can test run it like that and once I’m happy with it I’ll put the rest of it back together.
I need a crane!
Shoutout to Vetech and DMiller for their help and Vetech for the use of his flow meter, mine needs some work. The valve to create a restriction wouldn’t do what it’s supposed to so I couldn’t check flow under load.