North Star 296020, Руководство пользователя

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Maintenance & Repair (cont’d)
21
Stop-Switch Adjustment
CAUTION :
Never attempt to alter, modify or override this switch.
If Stop switch ever needs to be replaced or adjusted follow the below directions.
1. Loosen Hex Nut.
2. Turn the Linkage Bolt clockwise to lower or
counter-clockwise to raise the point of
interaction with Stop Switch. To set the proper
interaction distance, grip the Operator
Presence Bar & Handle Bar together and
lower the Linkage Bolt onto the Switch Button
until the switch button cannot be depressed
any further. Then raise the linkage bolt one
turn (counterclockwise).
3. Tighten Hex Nut.
4. Verify operability of stop switch before
operating machine by releasing the operator
presence bar next to the handle bar. You
should hear a “CLICK”, signifying that the
Linkage Bolt has been adjusted properly.
Setting & Sharpening Teeth
Among the most critical elements of the stump grinder is the cutting wheel. It is also the most
subject to damage and wear. In the course of grinding stumps it not only makes contact with the
wood, but also encounters numerous abrasives and objects in the stump's environment, such as dirt,
stones, large rocks and buried scrap.
The loss and wear of cutting teeth can significantly impair the efficiency and performance of the
stump grinder. Therefore, it is important to make frequent inspections of the condition of all the
cutting teeth and to sharpen or replace any damaged or worn teeth. Sharpening the teeth before
excessive wear will result in longer lasting teeth and better performance.
Sharpening Teeth NorthStar cutting teeth are tipped with heavy-duty carbide. Carbide retains
its sharpness longer; cuts faster and smoother, and can withstand heat better.
Though carbide is tremendously hard, it is also reasonably brittle. Sharpen
the teeth before excessive wear or if a chip is noticed. Less material will
have to be removed and the teeth will last longer with more frequent
sharpenings.
0.31"- 0.25"
Hex nut
Lower
Raise
Linkage bolt
Stop
switch
Operator
presence bar
Handle bar