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Post by spud on May 13, 2020 14:54:31 GMT -8
Sounds like your more capable than you thought. I worked on a rig thats called a blast hole drill, out in a rock quarry several years back with a similat problem. They had put a fresh 3116 cat engine in it and couldnt get it to start. There had been two different cat techs onsite a few different times that had not been able to fix it. So late one friday the pricks i work for sent me out there to whack away at it. Im not a equipment tech near as much as an engine tech but i drove out 79 miles to this machine and got with the onsite tech and he told me what a piece of shit the new engine was and how my company had shitty service and all and really got me feelin good. So i said try and start it. Well it cranked over and the engine fired and fuel knocked and poured out black smoke and tried to run but died as soon as he quit cranking it. I told him it wasnt the engines fault. It was giving up all the power it could at 300 rpm but there was too much load to keep running. Of course he didnt believe me. So i looked and all the engine did was drive hydraulic pumps. Four or five of them. And all hydraulics were controlled electrically. So i just left the electric master switch turned off and ran a wire to the shutdown solenoid on the engine to power it, and jumped a wire from the battery to the starter solenoid. The engine fired up and ran. He was pissed off. “ well how is it those field service techs couldnt figure that out? “ he asked... Next monday i just about got fired for my response.
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Post by 69Rebel on May 13, 2020 15:39:02 GMT -8
I've had experiences like that, too. Some guys like to make up their mind that something isn't fixable without ever doing any real troubleshooting, and maybe trying a workaround. Laziness is big part of it, I'd bet. Sometimes persistence is better than genius. At first, I was pretty afraid of that pump, but now, I think I know exactly which parts to keep on the shelf should I ever need to pull it off the machine again.
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