Claas LEXION 480, Repair Manual

Page: 191 / 1018

188 678.1 - RHB LEXION 480
3.4.9
Threshing drum
Installing the left-hand drum bearing
assembly
1. Ensure that the taper lock sleeve (3), the spherical
roller bearing (4) and the shaft seat are dry and
free from grease.
2. Pre-assemble the bearing housings (2 and 5) with
the taper lock sleeve (3) and the spherical roller
bearing (4).
Place this assembly on the shaft, along with the
felt seals (1 and 6).
3. Bolt the bearing assembly to the drum wall using
the M 12 x 35 cheese-head screw.
4. Tighten the M 50 x 1.5 face-end slotted nut (8) to
30 Nm using the special tool (part no. 180 142.0),
then continue tightening by 68° and then to the
next slot position, matching it with the securing
tab (7). Tap tab down into the slot.
5. Refit the grease pipe. Remove the wooden wedge
and refit the assembly cover.
6. Place the parallel key into the slot on the shaft.
Slide the clamping hub on the shaft and check the
position of the hub with dimension (X) =
61 mm
according to Fig. 24.
Once the clamping hub is in place, tighten the
M 10 x 60 hex. bolt.
Tightening torque = 45 Nm
7. Bolt down the V-belt pulley using the M 10 x 25
bolt.
Tightening torque = 72 Nm
8. Install V-belt (K) and adjust it – see page 7.2.8,
Installing and adjusting the impeller drive belt (4) .
Install cutterbar drive belt (P) and adjust it – see
page 7.2.2,
Installing and adjusting the cutterbar
drive belt (1) (Cutterbar drive without varia-
ble-speed drive)
and/or – see page 7.2.4,
Install-
ing and adjusting the cutterbar drive belt (2)
(Cutterbar drive with variable-speed drive)
.
9. Install the guard.
(Fig. 23, 24, 25)
23
X
31451
24
25