Filter
Top Products
TRANSFER BOX
OVERHAUL 39
TRANSFER BOX ASSEMBLING
1. Lubricate all components with recommended
oil.
CAUTION: Where use of gaskets is
specified, gaskets must be fitted; do not
use sealant.
Mainshaft input gear bearing pre-load
1. Position mainshaft input gear assembly in main
casing.
2.
Up to serial no. 288709E:
Fit a new mainshaft
input gear bearing housing gasket, dry on main
casing.
3.
All transfer boxes:
Fit mainshaft input gear
bearing housing ensuring reference marks are
aligned.
4. Fit 2 M10 x 25 mm bolts and tighten to 25 Nm
(18 lbf.ft).
5. Position suitable DTI with stylus of gauge
contacting end of mainshaft, push mainshaft
rearwards and zero gauge.
6. Push mainshaft forwards and note gauge
reading.
7. Calculate thickness of shim required using the
formula A + B + C = D where:
A = Thickness of installed shim - 3.15 mm
(0.12 in)
B = Recorded end-float
C = Required pre-load - 0.05 mm (0.002 in)
D = Thickness of shim required
8. If an alternative shim is required to establish
correct end-float, proceed as follows:
NOTE: Do not remove mainshaft input
gear bearing housing if bearing pre-load is
correct.
9. Remove 2 bolts, remove mainshaft input gear
bearing housing.
NOTE: Up to serial no. 288709E, retain
gasket on main casing.
10. Using a soft metal drift, carefully drive input
gear bearing track out of bearing housing,
remove shim.
CAUTION: If bearing track is damaged
during this operation, a new track must be
fitted.
11. Select required shim from the range available.
NOTE: Shims are available from 3.15 to
4.00 mm (0.12 to 0.16 in) thickness rising
in increments of 0.05 mm (0.002 in).
12. Fit selected shim and using a suitable mandrel,
fit input gear bearing track.
13. Fit mainshaft input gear bearing housing and
temporarily secure using 2 M10 x 25 mm bolts
tightened to 25 Nm (18 lbf.ft).