26
CH100
43
56
21
A
3
ø2 / “
4
ADJUSTING THE BEARING CLEARANCE
1. Open the upper chamber.
2. Remove the fastening bolts M10 (7) and the upper
bearing housings (6).
3. Remove the grease from the bearing housing.
4. Lift the disk.
5. Bend the claw of the securing ring (3) out from the
notch on the axle nut and open the axle nut.
6. Remove the spacer ring (3) if the bearing is at the
feeder side.
7. Measure the radial clearance on top of the bearing
between the rollers and outer ring with a feeler
gauge. The clearance should be 0.02–0.03 mm
(0,008-0,012”). Measure the clearance by pushing
the feeler gauge between the rollers (point A, Fig.
8b.) through the bearing and then moving the
gauge back and forth between the rollers and
outer ring - see Fig. 8c. Do not force the feeler
gauge through the clearance.
8. If the clearance exceeds 0.03 mm, bend the clawof
the securing ring (2) out from the notch on the
axle nut (1).
9. The bearing is tightened by turning the axle nut
clockwise with a 70 mm (2 3/4”) hook spanner until
the right clearance is achieved. Do not tighten by
hammering the axle nut.
10. Turn the axle nut clockwise until the notch is
aligned with the nearest claw of the securing ring.
Bend the claw into the notch. Do not bend the
claw that was bent earlier.
11. Lower the disk to the bearing housing.
12. Install the upper bearing housing and tighten the
bolts (6) to 50 Nm (36 7/8 lbf ).
13. Lubricate the bearing housing. An excessive
amount of grease causes overheating and impairs
lubrication.
Fig. 8a. Bearing, feeder side
Fig. 7b. Push the feeler gauge between the rollers and
outer ring.
Fig. 8c. Measuring the clearance
Fig. 8d. Tightening the bearing
To Next Page
Loading...