Hansa C16c O&M Manual – OM-020 Revision B 24/06/2019
© Hansa Chippers 2019
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How to re-sharpen the knives:
If you don’t have a surface grinder or are unsure how to re-sharpen the knives, contact a professional saw doctor or Hansa to
arrange re-sharpening.
Tools and materials required for re-sharpening (approx. 40 mins):
•
13 mm spanner
•
A stick magnet (optional)
•
Surface grinder
•
Coolant
.
Remove the knives for sharpening
Open the rotor housing cover by removing the two housing cover locking bolts with an 18 mm spanner, then lift
the rotor housing cover to access the cutting rotor.
Rotate the cutting rotor to gain access to the knives, then engage the belt drive to stop the cutting rotor from
rotating.
Use a 13 mm spanner to remove the knives from the cutting rotor. There are five
bolts that you must remove to do so.
Be careful not to drop the bolts or knives into the chipper
A stick magnet can be used to retrieve them if this does occur knife
clamping bolts.
Measure the width of the knife and check that it will be at least 46 mm after
sharpening.
If the knife will be shorter than 46 mm, then the knives should be replaced. Please
contact your nearest Hansa dealer.
Sharpen the knives
Sharpen the knives on a surface grinder. A cutting angle of 36 ° is critical for the
performance of the chipper. Make sure plenty of coolant is used when grinding to
avoid softening of the steel knives.
WARNING!
Be careful when working around the sharp knives. Be aware that even though the power source is
unplugged, the cutting means can still move.
1
2
3
MIN 46 mm
4
36 °
