"SHEAR-GRINDER OPERATOR"
Job Description and Jobs
Job Description:
- 1) Sets up and operates machines to sharpen ledger and fly blades of cloth-shearing machines: Removes blades from shearing machine, using chain hoist.
- 2) Mounts and squares ledger blade in jig of grinding machine, using straightedge and level.
- 3) Turns handwheels to set blade at specified angle and to position grinding stone against blade.
- 4) Starts machine that automatically moves rotating abrasive stone along edge of ledger blade.
- 5) Measures blade edge, using micrometer, to determine when thickness is within specified tolerances.
- 6) Resets machine to grind undercut on ledger blade.
- 7) Mounts spiral blade in brackets of grinding machine.
- 8) Turns various wheels to set both ends of blade equidistant from grinding head.
- 9) Starts machine that rotates abrasive stone and fly blade in opposite directions and moves stone along edge of blade, grinding blade until flaws are removed.
- 10) Measures diameter of blade with calipers at intervals along surface of blade to detect uneven grinding.
- 11) Replaces damaged spirals on fly blade, using handtools.
- 12) Mounts fly blade and ledger blade on lapping rig and starts machine that grinds blades against each other, using emery powder and oil, to finish edges.
- 13) Boils blades in chemical solution to remove oil and abrasive dust.
- 14) Applies preservative oil to blades.
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