DR Premier 375, Руководство по безопасности и эксплуатации

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DR
®
SELF-FEEDING WOOD CHIPPER

Routinely check the chipper knife for sharpness. Using a dull knife will decrease performance and cause excessive vibration
that will cause damage to the DR SELF-FEEDING WOOD CHIPPER.

Routinely check the wear plate for a sharp square edge. Using a rounded or chipped wear plate will decrease performance
and cause excessive vibration that will cause damage to the DR SELF-FEEDING WOOD CHIPPER.
6. Place a Straightedge on the Belt (over the Clutch and Sheave) and push
down on the Belt to measure the deflection from the Straightedge to the
Belt with a tape measure (Figure 27).
Note: The force when pushing down on the Belt should be approximately 3 pounds.
7. The measurement should be approximately 3/8".
8. If the measurement is not correct, loosen the Engine Bolts and tighten or
loosen the Adjusting Bolt as needed (Figure 24).
9. Repeat steps 6 through 8 until the proper Belt tension is achieved.
10. When the Belt is properly tensioned, ensure that the four Engine Bolts are
completely tightened.
11. Reinstall the Belt Guard.
Note: Check the Drive Belt after an initial break-in period of one hour and adjust if
necessary.
Removing, Replacing and Adjusting the Chipper Knife and Wear Plate
Inspecting the Chipper Knife and Wear Plate
Routine inspection of the Chipper Knife and Wear Plate will ensure that your DR SELF-FEEDING WOOD CHIPPER is operating at
full efficiency (see “Regular Maintenance Checklist” at the beginning of this Chapter). Operating with a worn or damaged Chipper
Knife or Wear Plate will cause extreme stress and vibration to the machine and make chipping difficult for the operator.
The Knife should be visually checked for damage before each use. The first procedure (“Routine visual inspection of the Chipper
Knife”) describes a quick way to check the Knife only through the Access Plate. The second procedure (“Inspecting the Chipper
Knife and Wear Plate”) is for a more detailed look at the condition of the Knife and Wear Plate by removing the Hopper.
VISUAL INSPECTION OF THE CHIPPER KNIFE (before each use)
Tools Needed:

7/16" Wrench
1. Loosen the Locknuts that secure the Access Plate, then slide the Cover over
and lift it off the Locknuts (Figure 28).
2. Rotate the Flywheel with a long stick until the Knife is visible.
Locknuts
Figure 28
Access Plate
Straight Edge
Figure 27
Belt