796
Model Code Page
44. Delta power shift
1. 4. 1997
8050--8750 444 10
15. 5. 1996
.
A
B
D
C
E
F
G
1
2
3
Note! Remove the piston ring type seal rings
on the shaft before repair works begin. Do not
damage the seal ring grooves on the shaft.
B. Chang ing friction discs in the clutch
drum
1. Remove the DPS housing/clutch drum from the reverse
shuttle front face, see instr. B paragraphs 1---3 on page 444/4.
2. Remove the sealing housing at the front end of the DPS
housing. Remove the front bearing circlip and tap out the
shaft/clutch drum of the housing,see instr. B paragraphs 4---5
on page 444/4.
3. Remove thelarge circlip (A), and remove the outerhousing
B by pulling it to the right (in picture above).
4. Remove the intermediate disc pack D (7 pcs friction discs
and 7 intermediate discs). Squeeze the securing ring
between the clutches through holes in the clutch drum C and
remove the securing ring and the support ring.
Note! On the latest DPS gears (F32509---), there is a piano
wire under the securing ring.
5. Remove the front disc pack (9 pcs friction discs and 9 inter-
mediate discs). Ensure that the clutch drum is fully home
against the circlip F. Knock or press the drum if necessary.
6. When assembling the front disc pack, place first against the
piston an intermediate disc and then by turns fricti on and
intermediate disc. Fit the support ring and its securing ring
and place the hub E into place.
7. Assemble the intermediate disc pack (fit against the sup-
port ring a friction disc and thenby turnsintermediate discand
friction disc). Fit the outer jacket B and secure it with circlip A.
Fit the disc pack D hub (+front sun gear) and the middle sun
gear shaft.
8. Assemble the DPS together with its housing to the reverse
shuttle front face and assemble the tractor frame, see para-
graphs 21---27 on page 444/7.
C. Changing piston seals of the clutches
Intermediate clutch:
1. Carry out procedures according to paragraphs 1---3 in
previous instr. B .
2. Remove circlip G and cup springs and blow carefully com-
pressed air into hole 1, until the piston of clutch D comes out.
Change piston seals.
3. Carry out procedures according to paragraphs 20---27 on
page 444/7.
Front clutch
1. Remove both disc packs according to paragraphs 1---5 in
previous instruction B.
2.Releasecirclip3,andremovecupsprings.Removethepis-
ton by carefully blowing compressed air through hole 2.
3. Change the piston seals.
4. Assemble the disc packs and the clutc h drum and fit the
DPS gear onto the tractor, see instr. B paragraphs 6---8.
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