4090 Woodchipper
Owners Manual
Service & Maintenance
35
After the blades have been replaced and are properly installed the
anvil can be set. First loosen the 4 anvil bolts. Keep the 4 bolts snug
so the anvil blade is not loose but can be moved with some force.
Turn the rotor / blade to the anvil. Then adjust the anvil to a position
of .0
20” - .040” above the tip of the cutting blade. Move the rotor back
and forth and adjust the anvil blade as necessary. After the anvil
blade has been set, turn the rotor to check the clearance on the
second blade. Both blades should be equal distance, but if variance
is observed, see the anvil to the tallest blade. After the anvil has been
properly adjusted, the 4 anvil bolts can be torqued to 45 ft-lbs. (Only
use an accurate torque wrench). Once the anvil has been torqued,
the woodchipper is ready for operation.
5.24 Bearings Maintenance
Your woodchipper has two main rotor bearings. These rotor bearings
enable the rotor to spin smoothly at a high rpm. These bearings must
be maintained. The top bearing does not need to be maintained as it
is a sealed bearing. The lower bearing needs to be greased with 2
pumps every 50 hours. Do not over grease the lower bearing. Over
greasing will cause the bearing seals to lose effectiveness and will
ultimately ruin the bearing over time.
5.25 Clutch Maintenance
Your woodchipper utilizes a clutch to transfer engine power to the
rotor. This clutch does not need regular maintenance but should be
inspected every 50 hours to ensure good operating condition. During
the inspection, the upper housing must move freely up and down to
engage the belt. Furthermore, the clutch belt contact faces must be
smooth. If wear ridges are observed, clutch performance will be
reduced and should be replaced to ensure excellent woodchipper
performance.