Filter
Top Products
3. Pivot the in-feed hopper completely back to gain clear access
to the cutting chamber, and clear any process material or
foreign objects from between the knives.
4. Rotate the rotor so that the rotor knives will not interfere with
the removal of the bed knife. Using a wooden block, block the
rotor to prevent it from rotating while removing the knives.
5. Loosen the lock nuts and back off the adjustment screws. (See
Error! Reference source not found..)
6. Loosen and remove the bed knife shield bolts and remove the
shield, positioned above the knife. The remaining bed knife
bolts and bed knife may now be removed.
7. Perform the above steps to remove the rear (upstroke) bed
knife as well.
NOTE: Before replacing the bed knife with new or sharpened
knives, wipe the knife seats on the knife block, being sure to
clean off all process material. The tapped holes in the knife
block (used for holding the knives in place) should be clear of
any dirt, oil, or process material.
8. Install new or sharpened bed knives on each knife seat, making
sure that the rotor is blocked to prevent it from rotating while
installing each knife. Be sure to place the bed knives in the
correct positions⎯the rear (up stroke) bed knife must be
placed with the extended cutting edge on the bottom, and the
front (down stroke) bed knife should be placed with the cutting
edge on the top.
9. Before re-installing the knife bolts, wipe them clean with a
lightly oil-damped cloth. Do not leave an oil film on the bolt
since lubrication can adversely affect the stress on the bolt
when torqued to the specified values. It is recommended that
the knife bolts be replaced with each new set of knives. This
will reduce the risk of bolt failure due to overstretching.
Always use the specified replacement bolts.
10. Tighten the bolts that hold just the bed knife, enough to keep
the knife in place, while still allowing the adjusting screws to
move the knife forward.
11. Adjust the knife gaps with the rotor knives, following Steps 8-
12 in Section 6-4.
12. Replace the shields in position above the bed knives. The
shield on the front (down stroke) bed knife should be
positioned so that the inside edge is set back approximately
1/32” from the cutting edge below it. Replace the remaining
bolts and torque.
Page 37 of 54