OHASHI ES72G Operation Manual page 28

REGULAR MAINTENANCE
KNIFE ADJUSTMENT (IMPORTANT)
After removing or affixing either chipper or counter
knives clearance between the chipper knife and
the counter knife must be adjusted correctly.
Refer to "Remove & Affix Knives" section of this
manual for instructions on loosening knife fixing
bolts.
1. Loosen chipper or counter knife fixing bolts per
instructions at "Remove & Affix Knives".
2. Insert 0.5mm gauge instrument between the
each chipper knife and the counter knife as
shown in the diagram below.
GAUGE (150 MM scale)
GAUGE , 150 MM
CHIPPER KNIFE
CLEARANCE: 0.5mm
3. Ensure the 0.5mm gauge can only just barely fit
between the counter knife and chipping knives.
A 0.6mm gauge should not be able to fit between
the chipper knives and the counter knife. A
0.4mm gauge should pass smoothly.
4. Lightly adjust the position of the chipper knives
while the bolts are not fully tightened by tapping
on them with a soft plastic or rubber hammer.
5. Check clearance with gauge.
6. When exactly 0.5mm clearance is achieved
fix chipper knife bolts securely.
Tighten with a 110 N.m torque wrench.
7. Rotate the rotor by hand to ensure that the
chipper knives do not hit the counter knife
on passing.
FEED
ROLLER
COUNTER KNIFE
8. Close the rotor cover and affix the rotor cover
fixing bolt.
CAUTION
Always clear dust, dirt or chips before affixing knife
bolts or they may become loose easily.
Be sure all the fixing bolts are tightened firmly.
If they are loose during operation, not only could
they damage the machine, but could also hurt
you.
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