MacDon D65 - Knife Drive Belts; Untimed Knife Drive Belts

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5.6.2 Knife Drive Belts
The knife drive box is driven by a V-belt that is powered by a hydraulic motor on the header endsheets.
Untimed Knife Drive Belts
The knife drive box is driven by a V-belt that is powered by a hydraulic motor on the header endsheets.
Removing Untimed Knife Drive Belts
The untimed knife drive belt removal procedure is the same for both sides of a double-knife header.
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 before leaving the operator’s seat, and always engage the safety props before going under the
machine for any reason.
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B
Figure 5.73: Single and Untimed Double-Knife Drive
1. Shut down the engine, and remove the key from the
ignition.
2. Open the endshield. For instructions, refer to Opening
Endshield, page 35.
3. Loosen two bolts (A) securing the motor assembly to the
header endsheet.
4. Loosen the belt tension by turning tensioning bolt (B)
counterclockwise.
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Figure 5.74: Access Cover
5. Open access cover (A) on the endsheet behind the
cutterbar to provide clearance between the knife drive box
pulley and the endsheet.
MAINTENANCE AND SERVICING