Valtra 6550 - Page 778

725
Model Code Side
6000--8750 440 1
1. 11. 1998
44. Quick---shift gear, reverse shuttle
and 4WD clutch
15. 5. 1993
Contents
General (Op. no 440)
Technical data 2...................................................................
Special tools 4....................................................................
2 --- st ep q u i c k --- s h if t gea r, d e s cr i p t i on 7...............................................
3---step quick---shift gear Delta Powershift, description 12.................................
Mechanical reverse shuttle, description 17..............................................
HiTech Shuttle, description 19A........................................................
4WD clutch, description 20...........................................................
Servo valve blocks 22...............................................................
W orking order 24...................................................................
Reconditioning 2--step quick--shift gear (Op. no. 441)
1. Rem oving quick---shift gear:
A. Splitting tractor between gearbox---fuel tank 1.......................................
B. Det aching quick---shift gear from reverse shuttle 2....................................
2. Fitting quick---shift gear:
A. Attaching quick---shift gear to reverse shuttle 3.......................................
B. Assembling tractor frame between gearbox---fuel tank 3...............................
3. Reconditioning quick---shift gear:
A. Changing quick shift gear o i l seals 5...............................................
B. Changing input shaft/disc assembly 5..............................................
C. Changing needle bearing in planet pinions and planet carrier 7........................
D . Fitting input shaft and disc assembly 8.............................................
E. Changing solenoid valve for quick---shift gear 10......................................
Reconditioning reverse shuttle (Op. no. 442)
1. Mechanical reverse shuttle:
A . Removing reverse shuttle 1.......................................................
B. Changing reverse shuttle synchronizing unit/bearings 2...............................
C. Fitting reverse shuttle 3..........................................................
2. HiTech Shuttle 4................................................................
Reconditioning 4WD clutch (Op. no. 443)
A. Changing 4WD clutch friction discs/seals, 2---step quick---shift gear 1...................
B. Changing 4WD clutch friction discs/seals, 3---step quick---shift gear (Delta Powershift) 3....
C. Changing 4WD output shaft oil seal, 2---step quick---shift gear 4........................
D. Changing 4WD output shaft oil seal, 3---step quick---shift gear (Delta Powershift) 4........
Reconditioning 3--step quick--shift gear (Delta Powershift) (Op. no. 444)
1. Reconditioning Delta Powershift:
A. Reconditio ning planetary gear and its multi---disc clut ch 1.............................
B. Reconditioning multi---disc clutches for reduction ratio and overdrive 4..................
2. Needle bearings 8..............................................................
3. Changing seals in Delta Powershift:
A. Changing oil rings of piston ring type 8.............................................
B. Changing front oil seal of Delta Powershift 8.........................................
C. C hanging oil seal and needle bear ing inside the input shaft fro nt end 8..................
4. DPS in transmission 650 9......................................................