Valtra 6550 - Page 714

665
Model Code Page
42. Gearbox
15. 5. 1993
420 1
6000--8750
8. 11. 1990
Contents
General (Op. no. 420)
Technical data 2...................................................................
Special tools 3....................................................................
Gearbox, description 5.............................................................
Synchronization 10.................................................................
Differential 11......................................................................
Gear shift lever system 12...........................................................
Po wer transmission, servo and lubricating system 17....................................
W orking order 23...................................................................
Repair instructions
Selector forks (Op. no 421)
1. Adjusting selector forks:
A. Removing gearbox side cover (selecto r cover) 1.....................................
B. Adjusting selector forks 1.........................................................
C. Fitting gearbox side cover 2......................................................
2. Changing selector forks 2.......................................................
Reconditioning gearbox ( Op. no. 423)
1. Removing gearbox from tractor:
A. Splitting tractor between gearbox---fuel tank 1.......................................
2. Disassembling gearbox:
A. Removing differential 3..........................................................
B. Removing side cover 3...........................................................
C. Removing hydraulic pump 4......................................................
D. Removing selector forks 4........................................................
E. Removing shafts from gearbox 6..................................................
3. Checking gearbox 7............................................................
4. Assem bling gearbox:
A. Fitting shafts into the gearbox 8...................................................
B. Fitting and adjusting selector forks 11...............................................
C. Fitting 4WD clutch drum 13........................................................
D. Fitting side cover 14..............................................................
E. Fitting pump and suction pipes 14..................................................
F. Fitting differential 15..............................................................
5. Fitting gearbox:
A. Assembling tractor frame between gearbox---fuel tank 17...............................
Reconditioning differential (Op. no. 424)
1. Changing/reconditioning differential:
A. Changing differential gears/diff. lock friction discs 1..................................