|buickanddeere said: (quoted from post at 09:37:53 02/06/13) Provides pressure for pto clutch and brake. Oil for brakes. Pumps oil up to the cooler .|
4020 brakes hyd oil is supplied by main hyd pump. This was one of the hydraulic advantages of rowcrop over utility tractors. 4020's prior to 1969 had manual operated pto clutch & pto brake. PTO clutch/brake on syncro-range after SN was supplied by main hyd pump This post was edited by Tx Jim at 09:27:37 02/06/13 2 times.