Contents

HW Transmission basics

• Transmission description
• Transmission diagram
• Transmission assignment
• Classification of transmissions
• HW series gearbox features
• Overview of HW series gearboxes
• Main features and benefits of HW series gearboxes
• Comparison of HW series gearboxes with analogues
• Comparison of gearboxes of different design schemes
• Heavy duty truck gearbox development trends

Design and operation of gearboxes of the HW series

• Design and operation of HW series gearboxes
• HW series gearbox mechanism
• Design and operation of gearboxes of the HW series
• HW Series gear shift and lever movement
• HW series gear shift diagram
• Scheme of movement of the control lever of gearboxes of the HW series
• Main technical characteristics of HW series gearboxes
• Overview of HW series gearboxes
• Main technical characteristics of HW series gearboxes

HW Series gearbox service

• Disassembly and assembly of HW series gearboxes
• Basic requirements for disassembly and assembly of HW series gearboxes
• Disassembly of the gearbox
• Disassembly and Reassembly of Input Shaft End Cover Assembly
• Assembling the middle gearbox housing
• Gearbox assembly
• Disassembly and assembly of HW series gearboxes
• Disassembly of shafts (intermediate shafts cannot be disassembled, replace if necessary)
• Shaft assembly
• Disassembly and assembly of the HW series gearbox auxiliary mechanism
• Disassembly of the HW series gearbox auxiliary mechanism
• Assembly and installation of the additional gearbox mechanism HW 19712
• Installing HW19712 small housing assembly
• Small crankcase assembly
• Tool used in the repair of HW series gearboxes

Design and operation of gearboxes of the HW series

• HW series transmission operation and maintenance
• Design and operation of HW series gearboxes
• Power take-off from HW series gearboxes

Design and operation of gearboxes of the HW series

• HW Series transmission fault analysis
• Troubleshooting procedures for HW series transmissions
• Classification of spare parts for HW series gearboxes
• An example of a symptom analysis - increased transmission noise
• Diagnostics of malfunctions of components of the control system of transmissions HW series
• Basic information
• General component malfunctions of the HW series transmission control system
• Search and analysis of other HW transmission problems
• Troubleshooting basic components
• Troubleshooting seals
• Analysis of other faults
• Analysis and troubleshooting of new cars
• Typical malfunctions of HW series gearboxes
• Examples of damage to parts

Identification of spare parts and materials

• Spare part designations
• Selection and use of materials