Hansa C3e - Knife Sharpening and Reinstallation; Sharpening and Balancing Knives; Reinstalling Knives and Bolts

Hansa C3e O&M Manual - OM-004 Revision H 09/07/2019
© Hansa Chippers 2019
15
Use a 13 mm spanner to remove the knives from the
rotor. There are three nuts you must remove to do so.
 If the bolt head turns, hold it with a 6 mm
hexagonal Allen key
Note: Do NOT try to loosen the bolt with the
hexagonal Allen key
Measure the width of the knife and check that it will be
at least 35 mm after sharpening.
If the knife will be shorter than 35 mm, then the knife
should be replaced. Please contact your nearest Hansa
dealer.
Sharpen the knives
Sharpen the knives on a surface grinder. A cutting
angle of 40° is critical for the performance of the
chipper. Make sure plenty of coolant is used when
grinding to avoid softening of the steel knives.
Reinstall the knives
Clean all mounting surfaces and remount the knife in the reverse procedure. Tighten all three nuts as tight as
possible by hand using a 13 mm spanner and 6 mm hexagonal Allen key. Do NOT tighten the bolts with the
hexagonal Allen key.
Note: When the knives are sharpened, material is removed from the knives, affecting the distribution of weight in
the rotor. The rotor must be balanced appropriately after knife sharpening, as per the method outlined below:
5
6
MIN 35 mm
7
8
40 °