Hansa C27EU O&M Manual
– OM-023 Revision A 16/10/19
© Hansa Chippers 2019
14
Anvil adjustment
Whenever the chipper knives are inspected/sharpened, the condition of the anvil should also be checked. If the edge of the anvil
is significantly rounded and/or uneven, then it should be reversed or replaced. Typically the anvil will maintain its flat edge for
about 500 hours of operation.
Anvil replacement
Remove the feed roller guard by unhooking the
four rubber latches. Unhook the springs from the
base of the chassis. Lift the swing arm up and
insert the rotor pin (located underneath the
control panel) into the tab on the housing to lock
the swing arm in place (as per the diagram
below).
To remove the anvil, you must remove the three
countersink clamping bolts using a 16 mm socket
and extension. If the bolt head turns, hold it with
an 8 mm Allen key.
Note
:
Do NOT
use the Allen key to turn the bolt;
turn only the nut.
Note
: Ensure the gap between the knife holding
block and the edge of the anvil is 4 - 5 mm. If not,
then the anvil can be adjusted via the two
adjustment bolts between the clamping bolts.
If the other side of the anvil hasn’t been used yet: rotate the anvil 180 degrees and place it back on the
feed
roller housing wall. If both sides of the anvil are blunt: remove the anvil and replace it with a new one. Contact
Hansa if a replacement anvil is required.
Tighten the clamping bolts back up using a 16 mm spanner/socket, ensuring there is a spring washer between
the clamping plate and each nut. Torque the bolts to 44 Nm.
Belt tension
Correct belt tension is crucial for minimising belt wear and maximising machine efficiency. To check the belt tension, the belt guard
must first be removed (see step 1 of
‘Belt replacement’
on page 16). After the belt guard is removed, fully engage the belt. There
should be approximately 5 mm deflection in the belt when pressing firmly on the belt (as per the image below). If required, adjust
belt tension.
1
2
3
4
Countersink
clamping bolts
Rotor
locking pin
Feed roller motor
Swing arm
Check for
deflection
here
