Retreading Functions:
- Inspect worn tires for faults, cracks, cuts and nail holes, and to determine if tires are suitable for retreading
- Operates a buffing machine to remove treads from tires to be retreaded, following specifications for depth and width
- Measures diameter and cross section to determine correct tread width
- Build semi-raw rubber treads onto buffed tire casings in order to prepare tires for vulcanization in recapping and retreading processes
- Applies rubber cement to tire casing and hangs up to dry
- Selects proper size tread rubber and applies it to the tire
- Places tire in chamber and programs correct curing temperature according to specification
- Sets timer for curing time according to chart, and makes record of each tire showing size and curing time
- Removes finished retread from curing chamber. Also removes rim and curing bag from finished retread
- Inspects tires to determine defects in curing, (soft cures, ply separation, repairs missed, etc.)
- Checks finished tire with work order for proper identification and completion of work required
- Trims and paints finished retread
Tire Repair Functions:
- Inspects tires to determine type of repair required, indicates repairs to be made and marks repair only
- Skives out and buffs injury inside and out for proper size repair
- Applies proper cement to inside injury and builds up repair using correct size repair patch
- Covers outside injury with layer of cushion gum and fills with tread gum
- Makes final inspection of repair, cuts tread design with regrooving iron, paints tire and places in finished stock
Physical Demands:
Exerts 50 to 100 pounds of force occasionally, and/or 25 to 50 pounds of force frequently, and/or greater than negligible up to 10 pounds of force constantly to move objects. Frequently reaches (extending hands and arms in any direction), handles (seizing, holding, grasping, turning, or working with hands), and identifies and distinguishes colors. Occasionally climbs (ascends or descends ladders, stairs, ramps, and the like), balances. Occasionally stoops (bending the body downward and forward by bending at the waist, legs and spine), and kneels (bending the legs at knee to come to rest on knee or knees).