MAINTENANCE
CH 260 CHIPPER
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14.5. SHARPENING THE ANVILS
If you notice wear or rounding of the inner edge
of the vertical anvil, sharpen the anvil so that
the original angle is retained. Fig. 23.
60
°
Vertical anvil profile
Fig. 23.Vertical anvil profile.
14.6. INSTALLING THE KNIVES AND
ANVILS
D
Check the condition of the fastening bolts
and nuts.
D
Install the knives and anvils and tighten the
fastening bolts to the torques specified in Ta-
ble 2..
D
Adjust the knife---to---anvil clearance. For
more information on adjusting the knife---
to---anvil clearance, see Section 14.8.
14.7. ADJUSTING AND CHECKING
THE KNIFE---TO---ANVIL CLEARANCE
The need for adjusting the anvils is determined
by the amount the knives are sharpened. Always
check and, if necessary, adjust the clearance
between knives and anvils:
D
After a heavy sharpening;
D
If the knives were removed --- for example,
due to sharpening;
D
If new knives are replaced;
D
If chip length is adjusted.
Check the clearance with a feeler gauge.
D
Turn the disk until the knife edge is aligned
with the vertical anvil.
D
Measure the knife---to---anvil clearance; ad-
just if necessary.
1. Loosen the vertical anvil fastening bolts
(M16) (A).
2. Adjust the clearance between the knife and
vertical anvil to 1.5 mm with the adjusting
nuts (M12) (C).
1.5 mm (1/16”)
Fig. 24.Clearance
3. Tighten the adjusting bolt nuts (M12).
Tighten the anvil fastening bolts to 200 Nm
(20 kpm).
4. Check that the knife--to--anvil clearance is
the same for all knives.
Anvil fastening
Anvil adjustment
Anvil adjustment
C
A
Fig. 25.Anvil fastening and adjustment.