Hansa C7eu O&M Manual - OM-019 revision B 03/09/2018
© Hansa Chippers 2018
14
Maintenance
Maintain the chipper with care and keep it clean at all times.
To service or inspect the equipment, or to change an accessory, you must:
✓
Switch the engine off
✓
Allow the chipper to cool before any inspections or adjustments
✓
Wait until the cutting rotor and engine are at a complete standstill before opening the cutting
rotor housing
✓
Disconnect the spark plug wire from the spark plug
✓
Switch fuel lever to off position
Initially after 2 working hours:
✓
Check for any loose nuts and bolts
✓
Check belt tension (refer to belt tension section)
The belts will stretch when they are new
✓
Grease the two rotor bearings, one on the inside and one on the outside of the housing
One or two pumps are sufficient
Be careful not to over grease
The bearings are already greased when the equipment is new
Use bearing grease or all-purpose grease
Every 20 working hours:
✓
Check for any loose nuts and bolts
✓
Check belt tension (refer to belt tension section)
✓
Grease two bearings as above, be careful not to over grease
✓
Check sharpness of knives
✓
Check condition of guarding (belt guard and outlet chute)
A damaged guard must be replaced by an identical or equivalent guard immediately
It is recommended to contact Hansa for a replacement guard.
Knife re-sharpening and knife replacement
How do I know that the knives need re-sharpening?
Chipper loses its self-feeding action with blunt knives
Material has to be pushed in
Material comes out in long strips
Blunt knives will cause excessive vibration
Blunt knives result in damage to the chipper
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
•
6 mm hexagonal Allen key
•
A stick magnet (optional)
•
Surface grinder
•
Coolant
WARNING!
Do NOT
operate your chipper with blunt knives.
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.
Disconnected spark plug
