Helolo Ben, Great post, in regards to the strange waveform capture.. This is only a guess based on experience, the system once primed needs to keep pressure in the lines between pump and injector, the Denox pump utilizes a diaphragm pump, with this type pump (from my understanding) there is no mecha...

Customer concern about during road operation the max mph would surge as would engine load, observed symptoms were loping road speed (25 down to 18)mph on flat and slight declines less than ~5%, and engine load on machine display would vary from 0% to 85%. In checking with our tech specialist for the...

Wanted to update the post with the resolution… New pump was replaced in error, incorrect test procedure, final fix was a bolt torque being to high on a certain area of the valve, all bolts torqued to 66ftlbs with the exception of one that resides near the main regulation piston which affects the flo...

I’ll start by letting all know there are no waveforms with this post, however it was an interesting diagnostic case. Machine was being worked on for some minor leaks on various hyd lines, fittings, etc. and routine service. The tech had repaired the leaks, which included a leak on the power shuttle ...

Nice post.

Hello Ben,

Thanks for the post, couple questions.

Would this be considered a pump efficiency/performance test, and can this PQ test also have engine rpm added to show pump performance at a given rpm?

Neil

No doubt the starter, batteries and cable were all tested throughly!!

Thank you Ben, by all means if Pico would like to use the experience fee free to do so.

guardian-front-boom-sprayers-overview (1).png Spent some time with a field tech looking over a sprayer, FPT engine - 6 cyl - 6.7L - Common Rail Machine was at roughly 80hr when the issue began occurring, main complaint slow/hard starting. Tech had went the way of a fuel system problem, replaced the...

I don't know the manufacturer unfortunately as we were being rushed off site. The ones in the semis or HGVs were generally made by BorgWarner which were labelled Visctronic https://youtu.be/VxjfuJi4IUs I'll see if I can find out more from a Komatsu part catalog. Kind regards Ben Attached a couple v...