AKL-150Y is one small diesel engine hydraulic water well drilling machine, it is normally used to drill shallow water well in area there is no too much rocks, it can reach 100-120m depth at most, Now we do some update again
1. with a bigger diesel engine 25HP in stead of 22HP
2. use a super bigger hydraulic tank, in that way, it helps the hydraulic system works like normal and powerful all the time.
3. with hydraulic filter to keep the hydraulic clean, and expand the worklife of the machine
4. adapt a clutch with the mud pump, then it is easy to turn on/off the mud pump.
5. use bigger gearbox and hydraulic motor, 
In a word, if you want to drill small water well, this update AKL-150Y is one of your best choice