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YAMZ 239 gearbox, repair e-manual (in Russian)

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Publisher: © "Motorist"
ISBN: 977-129-542-349-1
Number of pages: 139
Format: file PDF

About the manual

Transmission type: YAMZ 239

In the manual you will find

  • Step-by-step guide to repair various components and assemblies
  • Self-care and maintenance instructions
  • Gearbox design and prevention information
  • Information for a trip to the service station, if self-repair is not possible
Publisher: Motorist
Categories: Gearboxes
Only original manuals
Available immediately after payment
Full compliance with the paper edition
100% protection of your payments
Publisher: © "Motorist"
ISBN: 977-129-542-349-1
Number of pages: 139
Format: file PDF

About the manual

Transmission type: YAMZ 239

In the manual you will find

  • Step-by-step guide to repair various components and assemblies
  • Self-care and maintenance instructions
  • Gearbox design and prevention information
  • Information for a trip to the service station, if self-repair is not possible

Contents

Introduction

Purpose, device and principle of operation of the gearbox

  • Main gearbox
  • Synchronizers
  • Gearshift mechanism
  • Shift control of the main gearbox
  • Demultiplier
  • Demultiplier design
  • The device and operation of the demultiplier synchronizer
  • Demultiplier control
  • Power flows
  • Gearbox lubrication

Transmission operation

Maintenance

  • Daily maintenance
  • Break-in maintenance
  • First maintenance
  • Second maintenance

Possible malfunctions of the gearbox with their solutions

Disassembly and assembly of gearbox type YaMZ-239

  • Gearbox disassembly procedure
  • Dismantling the secondary shaft
  • Output shaft assembly
  • Dismantling the layshaft
  • Assembly of intermediate shaft
  • Disassembly and assembly of the demultiplier

Troubleshooting parts gearbox YaMZ-239

  • General technical requirements for troubleshooting gears and shafts
  • Troubleshooting parts before assembly

Gearbox assembly

Features of adjusting the tapered bearings of the main gearbox type YaMZ-239

  • Adjusting the relative position of the primary and secondary shafts
  • Preparing the location of the intermediate and secondary shafts in the crankcase
  • Adjusting the intermediate shaft rear bearing
  • Rear output shaft bearing adjustment
  • Adjusting the intermediate shaft front bearing
  • Input shaft bearing adjustment

Running in the gearbox after assembly

  • General requirements for running in gearboxes
  • Basic requirements for a gearbox break-in test bench
  • Switchability test
  • Checking the demultiplier synchronizer
  • Checking the automatic gear lock
  • Checking gearboxes for leaks
  • Requirements for the appearance of gearbox parts after running in

Gearbox acceptance rules

Packing, transporting and storing gearboxes

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