- 16 -
W
9
89
108
75
72
73
26
W
8
32
70
W
7
30
185
80
87
81
G
3
G
3
31
8. Repairs to Gearbox
8.1 Removal and Re-assembly of Gearbox (fi g. 30 and 31)
• Drain oil (see data sheets D 111 + D 117).
- Fresh oil at (
K
) / Bearing oil LP at (
K
1
) and HP at (
K
2
)
- Gearbox oil at (
K
3
)
• Remove drive motor (see page 12).
• Remove locking ring (87) on the drive shaft (72).
• Pull coupling (
G
3
) from the drive shaft with a puller.
• Take out key (151).
• Remove allen screws in bearing cover (81) and withdraw bearing
cover from drive shaft (72) with sealing (83) (and shaft seal (82)).
• Dis-connect all oil lines from the oil pump (185) (marking identi-
fi cation).
• Remove oil pump (185) with seal (88).
• Remove oil pump fl ange (80) with seal (83) (shaft seal (82) is
located in the fl ange (80)).
• Remove spring shim (79).
• Unscrew all screws in the gear box (70) - including those around
the coupling.
• With the puller (
W
7
) loosen the gearbox housing (70) from the
locating pins (108) while turning the screws simultaneous and
remove it.
• Re-assembly in reverse order. Note the following:
- Bearing cover (80) and shaft seal (82) will be carefully pushed
without sleeve along the shaft.
- Bearing cover (81) and shaft
seal (82) will be mounted
with assembly sleeve type
III (
W
3
).
• Re-assembly of drive (see
page 12).
• Refill with oil (see data
sheets D 111 + D 117).
- Fresh oil at (
H
)
- Bearing oil LP at (
H
1
) and
HP at (
H
2
)
- Gearbox oil at (
H
3
)
8.2 Changing Gear Wheels and Ball Bearings in Gearbox
Housing
(fi g. 31 and 32)
• Removal and Re-assembly of gearbox.
• Withdraw both bearings (26) with a puller (
W
8
) (do not use the
bearings again).
• Bend back locking tab (77).
• Remove shaft nut (78) with a C spanner (
W
9
).
• Remove back locking tab (77).
• Pull off gear wheels (73) and (75).
• Assemble in reverse order.
• Before pressing on bearing (26) their inner ring should be warmed
to 100°C.
