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

• HW series gearbox design
• HW series gearbox mechanism
• The device of the mechanism of shifting of gearboxes series HW
• HW Series gear shift and lever movement
• HW series gear shift diagram
• Diagram of the movement of the control lever for gearboxes of the HW series
• Main technical characteristics of HW series gearboxes
• HW series gearbox identification plate
• Main technical characteristics of HW series gearboxes
• HW series transmission 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 gearbox assemblies

• Disassembly of shafts (intermediate shafts cannot be disassembled, replace them if necessary)
• Shaft assembly

Disassembly and assembly of the additional gearbox mechanism of the HW series

• Disassembly of the HW series gearbox auxiliary mechanism
• Assembly and installation of the additional gearbox mechanism HW 19710

Installing a small crankcase (shift housing) gearboxes HW19710

• Small crankcase assembly

Tool used in the repair of gearboxes HW series

• HW Series gearbox operation
• Operation and maintenance of HW series gearboxes
• HW Series transmission control recommendations
• Power take-off from HW series gearboxes

HW series gearbox malfunctions

• 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 gearboxes of the HW series

• Basic information
• General component malfunctions of the HW series transmission control system

Search and analysis of other malfunctions of gearboxes of the HW series

• 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