Tim Stuart
Silver Member
- Joined
- Jun 5, 2007
- Messages
- 127
- Location
- Coldspring, TX
- Tractor
- Mitsubishi bd2h dozer, Gradall G3WD, New Holland TC35a, Chevy Dump Truck
All, I am hoping someone here may have a little Komatsu Experience. I am currently digging a 2 acres pond on my place using my dozer. I was backing up at a rather slow speed and went to shift it from reverse to forward and when the shifter was about in the he neutral position I lost all power to the hydro tranny. Meaning when I move the shifter in forward or reverse I have nothing. I cant get it to move. It threw alarm codes DK31KB (steering angle sensor 2 : short circuit HST) , DK56KB (directional potentiometer 1 : short circuit HST) , DK57KB (directional potentiometer 2 : short circuit HST) , DK40KA ( Brake angle sensor disconnect HST), DK12KA (deceleration sensor disconnect HST), DAJ5KK (HST controller sensor Power-supply output disconnected HST), DK30KB ( steering angle sensor 1 short circuit HST), DK10kb (throttle angle sensor short circuit HST). All the info in the above () are from my book looking up the error codes. It seems to me all the errors are centered around the HST controller. So I have checked all the fuses and don't see any blown thinking I lost power to the HST controller but did not find a bad one.
Does anyone have any thoughts or recommendations on what to check next? Any way to do a total reset on the system?
The dozer up until now has been running great ! I bought about 6 months ago from a rental place and have put around 150 hours on it since the purchase so it's relative a new dozer to me. I am also new to the Komatsu world as I had a little Mitsubishi bd2h until I brought this one. The one thing I learned real quick when a Hydro hose started leaking is the Komatsu dealer is quiet proud of parts they wanted $650 plus shipping for the hose. So I cant afford just to start throwing parts at it.
Any help is greatly appreciated!!
Regards,
Tim
Does anyone have any thoughts or recommendations on what to check next? Any way to do a total reset on the system?
The dozer up until now has been running great ! I bought about 6 months ago from a rental place and have put around 150 hours on it since the purchase so it's relative a new dozer to me. I am also new to the Komatsu world as I had a little Mitsubishi bd2h until I brought this one. The one thing I learned real quick when a Hydro hose started leaking is the Komatsu dealer is quiet proud of parts they wanted $650 plus shipping for the hose. So I cant afford just to start throwing parts at it.
Any help is greatly appreciated!!
Regards,
Tim