Valtra 6850 - Page 750

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Working order In the table below is shown the working orders for certain gearbox repair work. Reconditioning selector forks, see code 421. Removing, reconditioning and fitting gearbox, see code 423.
Drain trans- mission oil
Remove side cover
Raise cab front side and split tractor be- tween gear- b o x --- f u el tank
Remove PTO unit
Raise cab rear side and split tractor be- tween gear- box---fuel tank
Remove q u ic k --- sh if t gear and re- verse shuttle
Remove final drives/ brake hous- ings
Remove dif- ferential
Remove se- lector forks
Remove ground speed PTO shaft (op- tional)
Remove bevel pinion shaft and trans- mission shaft
Adjusting selector forks for gears 1 --- 2, 3 --- 4 an d M --- H
1 2
Adjusting selector forks for range LL and PTO (op- tional)
1 2 3 4
Changing selector forks
1 2 3 4
Changing selector levers
1 2
Reconditioning differential
1 2 3(orraise
the cab rear end, and splitting be- comes un- necessary)
4 5
Changing bevel pinion shaft/ crown wheel
1 7 2 3 4 5 6 8 9
Changing syn- chronizing rings on input shaft
1 7 2 3 4 5 6 8 9 10
42. Gearbox
1. 1. 1995
6000--8400
Model
420
Code
23
Page
15. 5. 1993