| 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 |
Copyright (c) 2008 disc.allsave.info.