Reconditioning 4Wd Clutch (Op. No. 443) - Valtra 6000 Workshop Manual

443. 4WD clutch
Reconditioning 4WD clutch
443)
Note! In figures below an impulse disc can be seen which is
only on E ---models. Concerning tractors which have Delta
Powershift, see page 443/3.
A. Changing 4WD clutch discs/seals on
tractors which have 2---step quick ---shift
gear
--- Split the tractor between the gearbox ---fuel tank (see instr.
441 1 A or instr. 423 1A).
--- remove the quick ---shift gear (see instr. 441 1 B)
--- remove the reverse shuttle (see instr. 442 A)
1. Fasten the 4WD output shaft flange to the vice. Unscrew the
shaft nut with socket spanner ETV 893 260.
Note! It is hard to open the nut because the cup springs press
the nut.
2. Remove the spacer ring, drive flange and o---ring. Tap at the
shaft front end until it releases.
3. Remove the shaft front ball bearing from its location (re-
move first the oil seal, spacer ring and the circlip).
(Op. no.
ETV 893 260
783
Model
15. 6. 1992
6000-- 8750
15. 5. 1993
ETV 891 900
4. Fit a new bearing, circlip, spacer ring and oil seal into their
locations (sleeve ETV 891 900 can be used). Grease the seal
lips.
5. Detach the clutch cylinder and piston from the shaft by
knocking the shaft front end against the table.
Note! The piston is a press fit.
6. Remove the pressure plate on the disc pack. Remove the
friction and steel discs and fit new discs so that the steel disc
lugs are in line with each other.
Note! The clutch discs are changed as a complete set. The
friction disc has worn out, if the grooves on it have disap-
peared.
7. Fit the pressure plate onto the disc pack. Drive the piston
onto the shaft with sleeve ETV 890 830.
8. Fit the cylinder onto the shaft. Before fitting it, check the pis-
ton and cylinder seals, and change them if necessary.
Code Page
443 1
ETV 890 830