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Section F
83 - 2
Drivehead, SD70 - Dismantling
The numerical sequence shown on the illustration is
intended as a guide to dismantling.
For assembly the sequence should be reversed.
1
Drain the oil from the axle centre casing. Remove the
propshaft from the gearbox to the front axle.
2
Remove
both
hub
driveshafts (see Hub and Driveshaft Dismantling).
3
Mark the installation position of the drive head carrier,
item 2.
4
Remove the drive head carrier retaining bolts, item 1,
and remove the drive head carrier 2 from the axle
casing.
5
Clean the drive head carrier and axle casing mating
faces.
6
Pull out tension pins 3 and 4, and remove castellated
nuts 5 and 6.
7
Remove bearing outer races 7 and 8.
Drive off the taper roller bearing cone 9 from the
8
crownwheel differential case half.
Remove the differential assembly 10 from the carrier.
9
10
Remove the differential assembly retaining bolts 11 and
separate case halves 12 and 13.
11
Remove the differential side gears and thrust washers
14 and 15 respectively (2 off each).
12
Remove planet gears and thrust washers 16 and 17
respectively (4 off each) from trunnion pins B.
13
Pull off taper roller bearing cone 18 from differential
case half 12.
14
Remove ' verbus ripp' bolts 19 and separate the
crownwheel 20 from the differential case half 13.
15
Mark the position of the drive yoke on the splined shaft.
Use service tool 892/00812 to prevent drive yoke 23
from rotating and remove pinion nut 22. Remove the
drive yoke.
16
Press the pinion 24 from the drive head carrier 2.
Withdraw the pinion oil seal 25 and taper roller bearing
17
cone 26. If necessary, remove bearing outer race 27.
If necessary, drive out the pinion bearing outer race 28
18
and shim(s) 29 from inner side of the drive head carrier.
19
Remove the spacer 30 and taper roller bearing cone 31
from pinion 24.
9803/3280
Transmission
Front Axle - SD70
assemblies
complete
Purchased from www.WorkshopManuals.co.uk
with
Section F
83 - 2
Issue 1
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