Three-shaft gearbox

A sequel to the video lecture about how gearboxes work.
(Start here - • Принцип работы механич... or here - • Назначение коробки пер... )
An introduction to the design and operation of the three-shaft manual transmission of a truck:
00:00 - 01:57 - Where the primary, secondary and intermediate shafts are located and how to tell them apart
01:58 - 02:41 - direct drive
02:42 - 03:44 - construction of the primary shaft
03:45 - 04:43 - fixed mesh gears and pinions
04:44 - 06:02 - gear shifting without synchro (1st and reverse)
06:03 - 09:44 - transmission synchronizer with locking pins and engaging the gears with it
09:45 - 10:15 - advantages of the three speed gearbox
09:16 - 10:51 - disadvantages of speed gearboxes
10:52 - 12:17 - gear splitter
⚠ If you only listen through one earphone, you may have audio problems - you can include subtitles.