12. OPERATION 12.12.2 ADJUSTING RIPPER ADJUSTING DIGGING DEPTH Mounting pin holes are provided in the shank and these are used according to the desired digging depth. For normal use, use the bottom hole, and when particularly deep digging is needed, use the top hole. To change the digging depth, do as follows. 1. Place a pointed object on the tip of pin 1 , then hit with a hammer to remove from the opposite side. 2. Remove pin 2 and change the position of the shank hole. 3. Insert pin 1 partially by hand then knock it in with a hammer. The pin is made of one piece, so insert it partially by hand then knock it in with a hammer. When a giant ripper is installed, use the pin puller.
For details, see “12.11.1 METHOD OF OPERATING PIN PULLER”. REPLACING POINT AND PROTECTOR To protect the shank, if the protector and point installed to the tip are worn, replace them. Place a pin remover on the pin marked by the arrow, then hit with a hammer to remove from the opposite side. REMARK The pin is a unitized type, so insert the pin partially by hand, then knock it in fully with a hammer. 2-68