NPK M20C, Instruction Manual, Page: 72 / 152

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72
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GENERAL MAINTENANCE
K JAW BLADE MAINTENANCE AND ADJUSTMENT
STEP 4:
The female jaw (BI) also has a guide blade (DF) and a spacer plate (DE). This blade is
located directly across from the first secondary blade (BG1).
The guide blade (DF) must also be shimmed as close as possible to the side of the
piercing tip (DA). Begin closing the processor jaws until the piercing tip just enters the
tunnel. Stop and measure the clearance (d64) between the guide blade and the side of
the piercing tip. Install the required amount of shims to reduce the clearance to .005”
( .127 mm ). Apply thread adhesive to the socket head cap screws for the guide blade.
Then torque to NPK specifications (see
“FASTENER TORQUE CHART”
).
Special Note:
The guide blade clearance will have to be checked after any weld build-up of the
piercing tip.