I removed all the tines from my 48 inch Forst Choice roto tiller, except, one outside row. I used a air ratchet and took 10 minutes to remove them. For maximum digging depth, I then removed my skid on that side of the tiller and lowered the lift arm, on that side, with lhe tractor leveling box asssy. Makes short work of installing these type low voltage lines, putting in edging brick and pvc feedline to my goldfish pond about 100 yds from the house. --Ken Sweet