Hansa C27EU O&M Manual
– OM-023 Revision A 16/10/19
© Hansa Chippers 2019
11
Turn the engine off, disconnect the spark plug wire and ensure rotor has completely stopped. Inspect
and sharpen or replace knives and/or anvil as required. Ensure correct clearances between knives and
anvil
The chipper starts making unusual noise, the cutting rotor strikes a foreign object or the chipper starts to vibrate
Turn the engine off, disconnect the spark plug wire, ensure rotor has completely stopped, then inspect
for damage
Replace or repair any damaged parts
Check for and tighten any loose parts
Do NOT
attempt to repair the chipper unless you are competent to do so
The chipper stalls when material is being fed
Auto Feed Control is not working
Check that AFC is on
Check the Autotrip setting is not at setting 0 or 20 (manual mode)
If AFC is not working, contact Hansa
The feed roller is not turning
Engine is not running at full throttle
Increase the engine throttle to max RPM
The feed roller is running too fast/slow
Hydraulic pump belt loose/broken
Tension/replace belt
Maintenance & service
Knife re-sharpening and knife replacement
How do I know that the knives need re-sharpening?
Chipper is vibrating excessively when processing material
Chipper is making more noise than usual when processing material
Rotor RPM is dropping more quickly than usual
Material comes out in long strips
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):
•
24 mm ring spanner
•
19 mm ring spanner
•
16 mm ring spanner
•
14 mm Allen key
•
Torque wrench with a 24 mm socket and 16mm crows-foot wrench
•
A stick magnet (optional)
•
Surface grinder
•
Coolant
WARNING! Do NOT
open the housing unless the engine and cutting rotor have completely stopped.
WARNING!
Always ensure personal protective equipment (such as gloves and safety glasses) are used when servicing,
repairing, or conducting maintenance on your chipper. During maintenance or repair, ensure measures have been
taken to prevent unauthorised starting of your machine.
WARNING!
Do NOT
operate your chipper with blunt knives.
Blunt knives will cause excessive vibration
Blunt knives result in damage to the chipper
WARNING!
Be careful when working around the sharp knives. Be aware that even though the engine is switched off,
the cutting means can still move.
