1. TRANSMISSION 1.1 TRANSMISSION POWER SHUTTLE 1. TRANSMISSION 1.1 TRANSMISSION POWER SHUTTLE 1.1.5 HYDRAULIC GEARBOX AND SHUTTLE DISTRIBUTION VALVE The function of the hydraulic gearbox distribution valve is to pilot and control the engagement of the gears in the hy- draulically-controlled gearbox . The hydraulic gearbox control valve controls the engagement of the H , M and L gears and the direction of travel. This distribution valve also supplies hydraulic fluid for the lubrication of the mechanical gearbox, the rear differential and the rear PTO control shaft.
Y1 P2 H2 Y3 G1 R Reset valve Y4 Y2 Ш 2,8 H1-H2 P3 Reducing valve p= 10 bar Ш 2,4 A Ш 2,8 C P4 B Pilot pressure valve p= 18 bar Y8 D0012630 Trasmission lubrification Control and lubricating pump 10-9 R1 P1 Ø 0,7