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Core Program Handbook - Bendix

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GRADING<br />

BENDIX CORE PROGRAM HANDBOOK<br />

CORE GRADING GUIDELINES FOR VALVES<br />

Good <strong>Core</strong><br />

• No major components damaged or missing<br />

One Part Damaged<br />

One major part damaged or missing<br />

Major parts include:<br />

• Damaged threads on connecting ports<br />

• Broken body<br />

• Broken cover<br />

• Broken bolts – if fl ush or below body<br />

• Missing internal components (i.e. piston)<br />

• Excessive corrosion or pitting<br />

• Broken fl ange mounts<br />

Scrap<br />

• Co-mingled parts<br />

• Competitor parts not in <strong>Bendix</strong> Truck Products<br />

• Two major parts damaged or missing<br />

• Obsolete or not in program parts<br />

What to look for<br />

• Valves must have <strong>Bendix</strong> logo or casting mark that begins with a "T".<br />

• Snap ring in bottom signifi es PR-4 valve.<br />

• "PR-2" is stamped on side of PR-2 valve. Valve does not have spring in bottom.<br />

CORE GRADING GUIDELINES FOR BRAKE SHOES<br />

Good <strong>Core</strong><br />

• No major components damaged or missing<br />

Scrap<br />

• Flared or mushroomed roller and anchor ends<br />

• Torch damage<br />

• Bent webs<br />

• Broken welds<br />

• Excessive rust<br />

November 2009<br />

13<br />

BW1020A

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