CONTENTS SECTION 10 CONTENTS 1. TRANSMISSION ................................................................. 1 4. FRONT AXLE.................................................................... 37 INTRODUCTION.................................................................. 1 5. HYDRAULIC SYSTEM ..................................................... 38 1.1 TRANSMISSION ..........................................................
2 1.1.1 MAIN COMPONENTS .......................................2 1.1.2 TRANSMISSION HYDRAULIC SYSTEM ...........5 1.1.3 GEARBOX..........................................................6 GEARBOX COMPONENTS ........................................7 1.1.4 MAIN CLUTCH ..................................................8 1.1.5 HYDRAULIC GEARBOX AND SHUTTLE DISTRIBUTION VALVE ......................................9 1.1.6 CLUTCH ENGAGEMENT AND SOLENOID VALVE OPERATION SCHEMATIC ..................12 1.1.7 TRANSMISSION ELECTRONIC SYSTEM SCHEMATIC....................................................13 5.1 HYDRAULIC SYSTEM ...............................................
39 5.2 GEAR PUMP FOR TRANSMISSION ZF 7100............ 41 5.3 GEAR PUMP FOR HYDRAULIC SERVICES AND STEERING ......................................................... 42 5.4 POWER STEERING.................................................... 43 5.5 AUXILIARY SERVICES CONTROL VALVE................. 44 5.5.1 TYPES OF CONTROL VALVE ......................... 45 5.5.2 SERVICES CONTROL SECTION .................... 47 5.5.3 DESCRIPTIONS OF COMPONENTS .............. 48 5.5.4 INLET MANIFOLD ........................................... 49 5.5.5 LIFT CONTROL VALVE SECTION................... 50 1.2 REAR AXLE .................................................................
15 1.3 REAR PTO................................................................... 17 2. BRAKING SYSTEM........................................................... 19 2.1 BRAKE MASTER CYLINDER ..................................... 20 2.2 BRAKE ....................................................................... 21 2.3 TRAILER BRAKING SYSTEM ....................................
22 2.3.1 HYDRAULIC TRAILER BRAKING (ITALY VERSION).............................................22 2.3.2 HYDRAULIC TRAILER BRAKING (EXPORT VERSION) ........................................24 2.3.3 AIR TRAILER BRAKING (ITALY VERSION)......25 2.3.4 AIR TRAILER BRAKING (EXPORT VERSION) .26 COMPRESSOR ........................................................27 PRESSURE LIMITING VALVE...................................28 TRAILER BRAKING VALVE (2-WAY) ........................29 TRAILER BRAKING VALVE (1-WAY) ........................30 3. HYDRAULIC FRONT AXLE SUSPENSION...................... 31 3.1 SOLENOID VALVE - SUPPLY TO FRONT SUSPENSION CONTROL VALVE..............................
32 3.2 FRONT SUSPENSION CONTROL VALVE ................. 33 10-i