Piercing Tip Maintenance And Replacement; Maintenance - NPK M20S Instruction Manual

GENERAL MAINTENANCE
K JAW BLADE MAINTENANCE AND ADJUSTMENT
STEP 5:
Inspect the tunnel blade (DB), located in the bottom of the female jaw (BI). If the lead
edge is worn or rounded off, remove and turn the blade. This blade can be turned four
times. There is a spacer plate (DE) between the blade and pocket wall, be sure to
install this spacer. The tunnel blade does not require shimming. Apply thread
adhesive to the socket head cap screws (OO) for the tunnel blade. Then torque to NPK
specifications (see "FASTENER TORQUE CHART").

PIERCING TIP MAINTENANCE AND REPLACEMENT

Before maintenance is performed on the piercing tip, it is recommended that the fixed
female jaw tunnel be repaired first. (See "K JAW BLADE MAINTENANCE AND
ADJUSTMENT" STEP 5.)

MAINTENANCE

To maintain maximum piercing efficiency, the piercing tip should be checked daily for
wear. The rate of wear that will occur is going to be influenced greatly due to the types
of material being processed and the amount of piercing being done. To check the jaw
and tip for wear, close the processor jaws until the piercing tip is beginning to enter the
female jaw (tunnel). The piercing tip should fit squarely in the female jaw tunnel. The
piercing tip will require attention if a large gap is noted and the tip is rounded. Also, if it
is noted that the material is being drug through the tunnel and not efficiently pierced by
the tip, is also an indication that the tip is in need of attention. The length of time
between piercing tip maintenance will greatly influence if a tip can be repaired or if the
tip must be replaced.
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