KRAL C Series - Page 40

12 Servicing
12.6 Replacing the ball bearing and screw set (inner bearing)
13
12
2
12
2
1. Size15–660,880: Press the balancing cylinder12 onto the shaft of the main screw2.
2. Press on the ball bearing13.
12
14
13
15
2
2
5
3. Slide the supporting ring14 onto the main screw and mount the circlip15.
4. Unclamp the main screw, rotate it by 180° and clamp again.
5. Mount the flange cover5 onto the main screw.
3
2
5
6
11
8
9
1
4
6. Clean the fitting surfaces carefully, position the flat gasket11 in the flange cover.
7. Size15–660,880,2250–3550: Position the edge sealing rings8 in the flange cover. Take the
recesses for the edge sealing rings into account.
8. Mount the bearing bush set9, consisting of the bearing bush and segment washer (segment
washer only for Size 15–660,880), on the shafts of the idle screws3.
40
OIC 18en-GB Edition 2020-01
Operating instructions