DESCRIPTION OFTIREBUILDERS DUTIES:

Start: Fill out lot assurance sheet making sure stock #s are correct and all measurements of all materials (treads,sidewall, cords & liner) are to spec; within 1/4 in,, than check the mechanical aspects- drum & ring size, then set lights, also check stitcher level.

Throw tread onto tread guide, Place two beads, one on each ring (on either side of the drum), step on auto peddle to begin cycle. The tailstock will draw in and drum will expand.

Building Tire: sharpen and heat knifes, place builder # on liner and liner on drum, step on auto peddle for 1 turn, slice with #21 knife, making a snug (1/8 to 1/4 in.) splice. Place cord #1 on top of liner and step on auto peddle, make splice and hit auto peddle for step off. Continue this procedure per each piece of cord required for the tire. Most tires require 2-3 pieces of cord and 1-2 breakers (also cord material usually smaller in width).

When cord and breakers are on properly, step on auto peddle and headset will take place (where the rings are forced into either side of the tire and bladders fold the cord over the top of the beads imbedded there), then auto peddle again to shift machine to then place the tread centered on drum, step on auto peddle and guide tread onto drum, step on auto peddle to engage stitchers. Then place sidewall on in same manner, starting at one inch above or below tread splice, cut with large scissors on angle and splice flush, step on auto peddle and tire will stitch out completely. The tailstock will pull out and drum will collapse, remove tire and place onto tire press behind you, making sure the tire splice is under the press area. Then tape the liner splice and remove tire to truck, completing the tire.

During the building process you will experience the following other duties: Changing rolls: of cord, breaker, liner or sidewall. There are three levels on either side of the back of the machine (six rolls). Remove empty roll (45-65 #s) and place on pallet between machines. Then remove empty shell from beginning roll- rod, behind the machine and place on pole where you removed the empty roll. Then using the hoist retrieve a new roll of correspondent cord then put the rod in center shell and place in machine. Take material (beginning of roll), and weave threw poles properly wrapping around shell and place hand crank in center of shell and crank in until cord appears, splice to end of last roll and engage auto switch.

Changing over: This process would also be described as above, exception - back out all unfinished rolls with manual crank handle than, lift out with hoist and tag with corresponding tag . Using hoist to enter the next tires' appropriate cords, liner, breaker & sidewall. Weave in to machine as above. Then make all the appropriate measurements and changes to the lights, make sure mechanical change-overs are correct and change machine configuration (if applys). This duty may occur 2-3 times in a 12 hr. shift and 1-2 times in an 8 hr. shift.

Physical involvement entailed as follows: Standing, turning, bending, and shifting of weight (constant throughout the building process, 60% of your shift) & lifting (of treads, finished tires & empty rolls-weighing 15-65 #s, 40%of your shift).

Changing of rolls: approx; every 30-40 tires produced (12hrs. yields 240-270 tires- 8hrs. yields 150-180 tires)

Lifting: of treads and finished tires every 2.5 - 3.5 minuets. Use of right arm and hand & shifting of weight constant threw-out the building process.