16 To measure rolling force:
- Refit the planet gear carrier - DO NOT FIT THE SUN
GEAR. Use a spring balance and cord wrapped
around the planet gear carrier flange as shown. Pull
the spring balance so that the hub rotates and
record the reading.
- To get the rolling force, subtract seal drag rolling
force (see step 14) from reading obtained at this
step, the result should be 64 to 117 N (14 to 26 lbf).
- If the resulting figure is outside these limits check:
the seal is fitted correctly; and/or renew bearings if
necessary; and /or new fitted components.
- Remove planet gear carrier.
17 Press the drive shaft thrust pad C (chamfered side
lowermost) into the recess in the planet carrier.
18 Fit new planet gears in place of any that were removed.
(See step 4 in 'Dismantling'). Secure with circlip.
Note: Make sure that the SMALL radius on the gear bearing
internal diameter is facing uppermost, that is at the circlip
end of the planet pin.
81 - 9
Section F Transmission Section F
81 - 9
Front Axle - SD55, SD70
Hub and Driveshaft - Assembly (cont'd)
S248870
255920
C
S258230
X
19 Fit spacer and slide the sun wheel onto the driveshaft
and secure with circlip D. Apply a fillet of sealant
4102/0900 evenly around the bearing carrier as shown
at X.
Note: Some machines may have an ‘O’ ring instead of
sealant - where appropriate fit a new ‘O’ ring.
Note: The sun gear must be fitted with the 1.5 mm (0.060 in)
x 45° chamfer inboard.
D
9803/3280 Issue 1
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