- 24 -
USE ONLY GENUINE PARTS.
- Remove all hammer knives.
- Weigh all the hammer knives individually and put all the knives which have the same weight together.
- Fit all pairs of hammer knives with the same weight on diametrically opposite mountings.
- Place the heaviest pairs to the outside of the rotor, and the lightest pairs towards the centre.
- When changing a hammer knife, tighten the M 16 locknut to a torque of 10 daNm / 75 ft.lbs. After tightening the
nut, there should still be a sideways play of 1 to 2 mm.
- After fitting the hammer knives, couple the machine to a tractor. Raise it slightly and gradually increase the PTO
speed until it is at 540 or at 1000 rpm (see chapter "Rotor speed" page 20).
- When the hammer knives are correctly fitted, there should be no vibration while the rotor is running.
- Check that the hammer knives are correctly fitted ! (A = forward direction).
HAMMER KNIVES FITTING
Periodically check the condition and fixing of the hammer knives. Replace immediately any worn or damaged parts
with genuine KUHN parts.
BEFORE CARRYING OUT THIS WORK, ALWAYS DISCONNECT THE PTO SHAFT.
