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Inch & Metric Rotor Micrometers |
No. 902760 |
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Operating Instructions with Parts |
No. 902760-50 |
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Identification |
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AMMCO, Inc. • Hennessy Industries • |
1601 J.P. Hennessy Drive, LaVergne, TN |
37086-3565 |
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(800) 688-6359 • (615) 641-7533 |
• (615) 641-5104 FAX • www.ammcoats.com |
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Rotor Condition |
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Measure the rotor’s thickness at three (3) or more |
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points around its circumference about one (1) inch (2.54 |
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cm) in from the outer edge. Note: If the rotor has |
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grooves worn in its friction surfaces measure its thick- |
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ness with the point of the anvil in the deepest groove. If |
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the rotor thickness varies between readings the rotor |
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should be machined. The rotor should be replaced if the |
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rotor’s thickness at any point is less than the minimum |
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established by the vehicle manufacturer, or if it will be |
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less after reconditioning. |
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Calibration |
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1. Loosen the cap screw holding the micrometer |
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assembly in the frame. |
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2. Zero the thimble to the zero mark of the barrel by |
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turning the friction thimble. |
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3. Push the thimble/barrel “assembly” against the |
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anvil. |
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4. Tighten the clamp screw while maintaining the set- |
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ting. |
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5. Check the zero setting by backing the spindle away |
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from the anvil and closing the micrometer by its friction |
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Item |
Part No. |
Qty. |
Description |
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thimble. |
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1 |
924999 |
1 |
Frame/Anvil Assembly |
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6. If the micrometer does not read zero, loosen the |
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2 |
900205 |
1 |
Cap Screw |
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cap screw and reset the thimble to the same number of |
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3 |
922402 |
1 |
Inch Spindle |
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divisions on the other side of the zero mark on the thim- |
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922407 |
1 |
Millimeter Spindle |
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ble. Repeat steps 3, 4, and 5. |
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4 |
922396 |
1 |
Inch Barrel |
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922405 |
1 |
Millimeter Barrel |
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5 |
922397 |
1 |
Inch Thimble |
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922406 |
1 |
Millimeter Thimble |
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6 |
906148 |
1 |
Set Screw |
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7 |
922404 |
2 |
Spring |
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8 |
920379 |
2 |
Detent Ball |
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9 |
922403 |
1 |
Friction Strip |
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10 |
922398 |
1 |
Friction Thimble |
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922410 06 07/02 |
© COPYRIGHT 2002 HENNESSY INDUSTRIES AND AMMCO ALL RIGHTS RESERVED PRINTED IN U.S.A. |
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