262334 158 Revision A
Adjusting Knife Hold-Down: Center Guard – Double-Knife Header
To adjust the hold-down at the double-knife center pointed guard, follow the recommended adjustment procedure
provided here.
Figure 4.46: Knife Hold-Down – Double Knife
1. Torque nuts (A) to 46 Nm (35 lbf·ft).
2. Turn adjuster bolts (B). Using a feeler gauge, the clearance
from the hold-down to knife section (C) should be:
• 0.1–0.4 mm (0.004 –0.016 in.) at the guide tip (C)
• 0.1–1.0 mm (0.004 –0.040 in.) at rear of guide (D)
3. Torque nuts (A) to 72 Nm (53 lbf·ft).
4. After adjusting all the hold-downs, run the header at a low
engine speed, and listen for noise due to insufficient
clearance. An insufficient clearance will cause the knife and
the guards to overheat.
Adjusting Knife Hold-Down: Stub Guard – Double-Knife Header
To adjust the hold-down at the double-knife stub guard, follow the recommended adjustment procedure provided here.
Figure 4.47: Stub Guard – Double Knife
1. Torque nuts (A) to 46 Nm (35 lbf·ft).
2. Turn adjuster bolts (B). Using a feeler gauge, the clearance
from the hold-down to the knife section should be:
• 0.1–0.4 mm (0.004 –0.016 in.) at the guide tip (C)
• 0.1–1.0 mm (0.004 –0.040 in.) at rear of guide (D)
3. Torque nuts (A) to 72 Nm (53 lbf·ft).
4. After adjusting all the hold-downs, run the header at a low
engine speed, and listen for noise due to insufficient
clearance. An insufficient clearance will cause the knife and
the guards to overheat.
MAINTENANCE AND SERVICING
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