I have a Komatsu D37PX-21 Power is weak and even weaker when trying to turn either direction. Also it has just started to just completely stop when operating. Full throttle and traveling will just stop and sill not react in either direction. And slow very slow movement of the blade when this happen. Shut down and restart and will function again for a couple minutes then stops again. I also wonder if the HST pump and charge pumps are separate units or can the charge pump be changed separately
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