Discovery II
TRANSFER BOX - LT230SE
OVERHAUL
41-45
4. 03 Model Year onwards: Using tools LRT-99-
003 and LRT-41-006, fit bearing tracks to
intermediate gears ensuring that tracks are fully
seated against shoulders in gears.
5. Using a micrometer, measure the width of each
bearing inner track.
6. Record each reading as measurement 'A' and
'B', both measurements should fall within the
range of 21.95 to 22.00 mm (0.864 to 0.866 in).
7. Fit inner bearing track 'A' onto tool LRT-41-017
and position intermediate gear cluster onto
bearing 'A'.
8. Fit inner bearing track 'B' to intermediate gear,
apply finger pressure to bearing inner track
and rotate intermediate gear 5 to 10 turns to
settle in bearing rollers.
9. Attach a DTI to base of tool LRT-41-017 , zero
gauge on top of tool post and take 2
measurements at 180
°
of the step height
between the top of the tool post and the
bearing inner track. Take an average of the two
readings and record this as measurement 'C'.
Measurement 'C' should be in the range of 0.15
to 0.64 mm (0.006 to 0.025 in).
10. Using the formula 103.554 mm (4.0769 in) -'A'-
'B'-'C', calculate the length of bearing spacer
required. From the result of the calculation
round DOWN to the nearest length of spacer
available to give a correct bearing pre-load of
0.005 mm (0.002 in). 40 spacers are
available ranging in length from 58.325 mm
(2.296 in) to 59.300 mm (2.335 in) rising in
increments of 0.025 mm (0.001 in).
11. Remove intermediate gear assembly from tool
LRT-41-017.
12. Lubricate and fit bearings and selected spacer
to intermediate gear.
13. Position tool LRT-41-004 through bearings
and spacer.