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38 16.50 PRO DR

RAPID-FEED™ CHIPPER

Checking and Adjusting the Knife to Wear Plate Gap

When you replace the Knife you must check and set the clearance between the Knife and Wear Plate. Set

this clearance or gap to 1/16" by using the Gap Tool that is supplied with the Chipper and with a new

Knife kit. If the gap between the Wear Plate and the Knife is not set correctly, you will have excessive

vibration when chipping and the Knife will seem to be dull. The Wear Plate should have a square edge

and be free of dents or gouges. The Wear Plate can be hand sharpened (see steps below). Be careful

not to overheat it during the sharpening process. This will change the characteristics of the steel and you

will then have to replace the Wear Plate.

Tools Needed:

• Gap Gauge (provided with Chipper)

Checking the Knife to Wear Plate Gap

1. Remove the Hopper (See “Inspecting the Chipper

Knife and Wear Plate” in this Chapter).

2. Use a stick to rotate the Flywheel until the Knife can be

positioned next to the Wear Plate.

3. Slide the Knife Gauge in between the Knife and Wear

Plate to check the clearance (Figure 39).

• If the Knife Gauge slides freely, with no

resistance and extra space, the Wear plate must

be adjusted.

• If the Knife Gauge will not slide down between

the Knife and Wear Plate, the Wear Plate must

be adjusted.

• If the Knife Gauge slides in between the Knife

and Wear Plate with some resistance felt against

them both then the Wear plate is properly

adjusted.

4. Install the Hopper when finished.

Knife Gap

Gauge

Figure 39

Knife

Wear

Plate

SHUT DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP,

REMOVE SPARK PLUG WIRE, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES

BEFORE PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION ON THE CHIPPER.

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DR PRO Betriebsanleitung Seite 42