Knife Speed; Setting Knife Speed - MacDon M2170NT Operator's Manual

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5.6.3 Knife Speed

The ideal cutting speed of the knife should achieve a clean cut. Crop types and conditions usually influence the knife and

forward speeds.

Table 5.6 Knife Speed Table

Header Description

When the header is first attached to the windrower, the HarvestTouch

Display receives a code from the header that

determines the knife speed range and the minimum speed.

The desired speed can be programmed and stored by the windrower so the knife will operate at the original set-point after

the header is detached and reattached to the windrower.

Refer to the header operator's manual for the suggested knife speed for a variety of crops and conditions.

The knife speed cannot be programmed outside the range specified for each header.

Set the knife speed by using the ground speed lever (GSL) and the HarvestTouch

Display. Knife speed is displayed in

strokes per minute (spm).

Ensure that all bystanders have cleared the area.

1. To set the knife speed, engage the header to display header

run screen 1, and then press KNIFE SETTINGS icon (A).

Figure 5.171: Header Run Screen 1

13. Revolutions per minute is the speed of knife drive box pulley.

14. Strokes per minute of knife (rpm x 2).