Hansa C4 O&M Manual - OM-005 Revision F 20/06/2019
© Hansa Chippers 2019
13
Remove the knife for sharpening
Remove the inlet chute - use two 13 mm spanners to
remove the nuts and bolts holding the inlet chute on.
Open the cutting rotor housing by removing the four
housing bolts using two 16 mm spanners.
Using a nylon hammer (or suitable alternative), gently
dislodge the housing from its grooves and remove it.
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.
1
2
3
4
5
MIN 35 mm
6
40 °
