214323
423
Revision B
1002943
A
Figure 6.144: Knifehead
13. Install grease fitting (A) into the knifehead pin, and turn the
grease fitting for easy access.
IMPORTANT:
Grease the knifehead just enough to start a slight
downward movement. Overgreasing will lead to knife
misalignment which causes the guards to overheat and the
drive systems to overload.
1009779
A
B
Figure 6.145: Knife Drive Box
14. Tighten knife drive box side bolts (A) first, then tighten the
bottom bolts (B).
15. Torque the bolts to 271 Nm (200 lbf·ft).
16. Move the output arm to the midstroke position, and ensure
the knife bar doesn
’
t contact the front of the first guard. If
the knife drive box requires adjustment, contact your
MacDon Dealer.
17. Install and tension the knife drive belts. For instructions, refer to
Tensioning Knife Drive Belts, page 426
18. Close the endshield. For instructions, refer to
.
Changing Oil in Knife Drive Box
Change the knife drive box lubricant after the first 50 hours of operation and every 1000 hours (or 3 years) thereafter.
DANGER
To prevent bodily injury or death from the unexpected start-up or fall of a raised machine, always stop the engine and
remove the key from the ignition before making adjustments to the machine. NEVER climb onto or go underneath an
unsupported header.
1.
Raise the header to allow a suitably sized container to fit under the knife box drain and collect the oil.
2.
Shut down the engine, and remove the key from the ignition.
3.
Open the endshield. For instructions, refer to
.
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