KUHN BK230, Operator'S Manual

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Shredders
64
BK
Maintenance and storage
Adjusting the tension:
- Remove 4 bolts (2).
- Remove belt guard (1).
- Loosen screw (3).
- Loosen the 4 screws (4) that hold the central gearbox.
- Loosen counter nut (5).
- Turn the adjustment screws (6) and nuts (7) equally
until reaching the optimum tension.
- Tighten screws (3) and (4).
- Tighten counter nut (5).
- Using a ruler, check that pulleys are in line (8)
- Repeat procedure until perfect pulley alignment is
obtained.
Replace belts, if proper tension can no
longer be obtained.
BK230:Part no. J0019026.
Quantity: 4.
BK280:Part no. JX001916.
Quantity: 4.
BK320:Part no. J0019026.
Quantity: 5.
By adjusting (3) and (4) equally, the central
transmission shaft is kept parallel to the rotor.