Service and Maintenance
BXC34 / BXC34 Bundle
Wood Chipper
42
9.7.1 Replace a Rotor Knife
IMPORTANT! Complete the same process for both rotor
knives equally to keep the rotor balanced when it turns.
Slightly lift the clutch lever off the brake position
to rotate the rotor. Engage the brake to lock the
rotor in position before starting the procedure.
01200
1
2
3
Fig. 32 –
Sharpen or change a rotor knife
1. Rotor knife
2. Ledger knife
3. Rotor knife leading edge
1.
Remove the discharge chute.
2.
Manually rotate the rotor to access one of the rotor knives.
3.
Release the clutch lever to engage the brake and lock the
rotor in position.
4.
Insert a block of wood to prevent the rotor from moving.
Make sure that the rotor cannot move.
5.
Remove the two bolts and washers, and then remove the
knife.
6.
Repeat steps 2 through 4 for the second rotor knife.
7.
Rotate, replace, or sharpen the rotor knives.
If one knife needs to be rotated or replaced, rotate or
replace both knives. If the knives are being sharpened,
sharpen both knives evenly.
8.
Install each rotor knife with the leading edge out. Apply blue
Loctite® to the bolt threads.
9.
Use a calibrated torque wrench to tighten the bolts to
33 lbf•ft (45 N•m)
.
9.8 Ledger Knife Maintenance
WARNING!
Never operate a machine with any guards
or shields removed. The machine is shown
here with guards and/or shields removed for
illustrative purposes only.
W001
Observe the ledger knife performance during operation.
Check the ledger knife sharpness after every 100 hours of
operation.
Material in the chipper is sheared off at the stationary ledger
knife when the rotor knives pass by.
The ledger knife can be turned or rotated, so that all four edges
on the long sides can be used. When the edge facing the rotor
knives becomes rounded over (dull), remove the ledger knife,
and then install it with a different long edge facing the rotor
knives.
When all four edges of the knife are dull, remove the ledger knife
and sharpen it.
1
2
01202
Fig. 33 –
Ledger Knife in the rotor housing
1. Ledger knife
2. Mounting bolts and washers
