Needle Bearings; Changing Oil Seal And Needle Bearing Inside The Input Shaft Front End - Valtra 6000 Workshop Manual

44. Delta Powershift

2. Needle bearings

The mounting depth of both needle bearings inside the gear
housing is 0,5 mm measured from the end face. This ensures
free flow of lubricating oil. The needle bearing in the sealing
housing is fitted against the bottom of its location.
3. Changing oil seals of Delta
Powershift
A. Changing oil seals of piston ring type
1. Split the tractor between gearbox ---fuel tank, see Op. 441
1A.
2. Diconnect the pressure oil pipes from the gear casing.
3. Unscrew the three fixing bolts of the sealing housing at the
front end of the gear casing and pull out the housing.
Note! Check that sealing ring grooves on the shaft and the
hole in the sealing housing are in perfect condition. Do not
damage the seal ring grooves during repair work since it can
cause seal ring damages.
4. Change three seal rings of piston ring type. When fitting
new rings, make sure that the ring end lockings engage cor-
rectly.
5. Grease and fit the seal housing o---ring. Fit the seal housing
and tighten the three bolts to a torque of 23 Nm.
6. Connect the oil pipes to the gear housing. Assemble the
tractor frame according to instruction 441 2B.
B. Changing front oil seal of gear housing
1. Split the tractor frame between gearbox ---fuel tank, see Op.
441 1A.
2. Remove the damaged oil seal and fit a new seal with a suita-
ble sleeve. If you detach the seal housing, the oil seal can be
fitted with plate ETV 893 720.
Note! Do not damage the seal on the input shaft splines.
Apply grease to the lips of the new seal.
3. Assemble the tractor frame according to instr. 441 2B.
15. 5. 1993
C. Changing oil seal and needle bearing
inside the input shaft front end
1. Split the tractor frame between gearbox ---fuel tank, see Op.
441 1A.
2. Remove the guide ring in front of the seal. Use e.g. an
impact puller.
3. Remove the damaged oil seal inside the input shaft front
end. Check/grease the needle bearing behind the oil seal.
4. Fit a new oil seal (and needle bearing if changed). The parts
can be fitted with tool ETV 892 180.
Note! Fit the needle bearing and the seal deep enough so that
the guide ring can be fitted with its front face level with the
input shaft front face.
5. Grease the seal lips. Apply Loctite 601 to the guide ring sur-
face and fit the ring in front of the seal.
8. Assemble the tractor frame according to instr. 441 2B.
794
Model Code
6000-- 8750 444
Page
8