Wallenstein BXT36S, Руководство оператора

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Figure 46 –
Install a ledger knife
9.10.2 Sharpen a Ledger Knife
IMPORTANT! If the ledger knife gets hot during sharpening,
stop and wait for the ledger knife to cool.
1. Remove the ledger knife from the machine.
For instructions, see
Replace a Ledger Knife on page 58.
2. Clean the ledger knife.
3. Examine the ledger knife for damage. If a ledger knife is
damaged, replace the ledger knife.
4. Put the ledger knife in a bench vice with the cutting edge
facing up.
Make sure that the ledger knife is clamped safely in the
bench vice.
5. Use a grinder to sharpen the cutting edge of the ledger knife
to a 90-degree angle. See
Figure 47.
6. Do steps 4 and 5 for the opposite cutting edge.
01098
90°
90°
Figure 47 –
Sharpen a ledger knife
9.10.3 Set the Ledger Knife Clearance
1. Stop the engine. Wait for the rotor to stop turning.
For instructions, see
Stop the Machine on page 31.
2. Remove the fastener that holds the upper rotor housing
closed. See
Figure 22 on page 35.
3. Open the upper rotor housing.
4. Turn the rotor to align a rotor knife with the ledger knife.
Select the rotor knife with the smallest space between the
rotor knife and the ledger knife.
5. Loosen the ledger knife fasteners.
6. Do one of the following:
• Insert a ledger knife clearance gauge between the rotor
knife and the ledger knife. Move the ledger knife until the
ledger knife touches the ledger knife clearance gauge.
• Move the ledger knife to set the clearance between
1/32" and 1/16" (1 mm to 1.5 mm).
7. Tighten the fasteners while holding the ledger knife against
the clearance guage.
8. Use a calibrated torque wrench to torque the fasteners to
45 lbf•ft (63 N•m).
9. Do one of the following:
• If you are using a ledger knife clearance gauge, remove
it and then put it in the holder.
• If you are not using a ledger knife clearance gauge,
continue with step 10.
10. Turn the rotor to check the ledger knife clearance for each
of the rotor knives.
Make sure that the rotor knives do not touch the ledger
knife.
11. Close the upper rotor housing.
12. Install the fastener that holds the upper rotor housing
closed. See
Figure 22 on page 35.
13. Use a calibrated torque wrench to torque the fastener to
80 lbf•ft (110 N•m) .
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Figure 48 –
Set the ledger knife clearance
BXT36S
Wood Chipper
Service and Maintenance
59