Oliver 4430, Owner'S Manual, Page: 40 / 65

40 | Page Oliver Machinery 4430 Planer
Service Cutterhead and Rotate Cutter Inserts
CAUTION
Cutter inserts on the cutterhead are extremely sharp. Protect your hands with thick
leather gloves to avoid injuries.
1. Disconnect planer from power source!!
2. Remove dust hood and top cover.
3. Remove dusts and resin accumulations on
the cutterhead and the area nearby.
4. Rotate the cutter inserts 90° clockwise when
they get dulled or nicked. Use a permanent
marker to mark the new edge to be used.
5. To rotate/replace a cutter insert, remove
the torx screw with a T-25 torx bit. Turn
COUNTERCLOCKWISE to loosen the screw.
6. With the cutter insert removed from its
platform, thoroughly clean the cutter insert
platform with a vacuum or compressed air.
IMPORTANT: Obstacles between the insert
and cutterhead platform will create uneven
pressure against the insert. This will lower
cut quality and may cause the insert to crack.
7. Reinstall the cutter insert with the marked
cutting edge facing out.
8. Inspect the torx screw. Replace any
damaged screws. Lubricate the screw thread
with a thin coat of light weight machine oil.
IMPORTANT: Do not use excessive amount
of lubrication, or the torx screw and the
cutter insert will not sit properly.
9. Using a torque wrench, re-tighten the torx
screw with 50-55 lbs.-inch of torque.
IMPORTANT: Do not overtighten the screw
or the inserts may break. Do not use power
tools to tighten the torx screws as it can strip
the screws.
10. Reinstall top cover and dust hood when
cutterhead service completes.
11. Remove all wrenches and tools before
restarting the planer.