Determine which tire is to be replaced.

Determine which tire is to be replaced.

Assigned to clear mill table

Two one-ton come-alongs, and two 1/2 by 3' chokers

Return crane to staging area, air lines re-organized, tools in gang box, shut off oxygen/acetelyene bottles, hoses purged, protective valve covers in place, gases evacuated from ring of fire, clear hazards, police area and dispose of unwanted items in the appropriate containers, scrap tires to bone yard (remove the pallet and discard in wood waste), return cribbing to warehouse area, return comealongs and chokers to storeroom and note any defects/damages to equipment at that time.

Must point air lance in direction of table rotation, to avoid lance contacting table and kicking back against operator.  Takes ~ 5 minutes to complete this operation.

This is done to check that the right equipment has been locked-out.

Address any potential hazards observed prior to starting work.

Discuss three points of contact

Show ladder safety video

Once harnessed in place instruct co-worker to hand 3/4 inch impact wrench up to co-worker.

Turn latches 90 degrees.

Lower impact wrench to co-worker.

Decend and remove ladder from working area.

Thermocouple should  only be hand tightened.

One hoist attached approximately 20 degree from vertical.

One hoist attached vertical.

Monitor cables for proper tension

Ataches connecting rods to yoke assembly.

Utilize hoist , comealong, and slide hammer in unison to remove pin. (Pins weight approximately sixty pounds each).

Once the pin is out of the taper fit, it takes two people to lower the pin to ground level.

Remind workers to use proper lifting techniques.

Utilize hoist to ensure safe removal of pin to prevent lifting injuries.

Maintain eye contact to ensure consistent and safe lifting.

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Ensure there is tension on the line when at stops.

Necessary to have face shield, goggles, dust mask, and normal PPE.

Fellow workers should evacuate building while air lancing is taking place. (To avoid dust and projectile injury)

Execute pre-shift inspection.

Chokers must be a minimum of 6' in length and matching.

Apply tether line to eye holes prior to tapping to maintain lift control of ring.

Worker should maintain tension on the tether line.

Ensure the ring of fire is centered on tire to optimize heat transfer.

Ensure the spreader bar is level for equal pull and maintain a constant tension.

Mechanic opens propane valve slightly while another mechanic is igniting flame.  Adjust both air and propane to obtain proper mixture of gas.

Proper air/gas mixture shows a flame detached from nozzles approx. 1" (blue flame).

Use a heat pencil or infrared meter to verify the removal temperature is 250 degrees Fahrenheit (do not exceed).

Execute a constant lift when separation begins to occur between tires.

Ensure all workers are clear of the active crane radius..

If tire is to be discarded, place on pallet.

If tire is to be re-installed, place on cribbing

Ensure the ring of fire is centered on tire to optimize heat transfer.

Ensure the spreader bar is level for equal pull and maintain a constant tension.

Mechanic opens propane valve slightly while another mechanic is igniting flame.  Adjust both air and propane to obtain proper mixture of gas.

Proper air/gas mixture shows a flame detached from nozzles approx. 1" (blue flame).

Use a heat pencil or infrared meter to verify the removal temperature is 250 degrees fahrenheit (do not exceed).

Execute a constant lift when separation begins to occur between tires.

Ensure all workers are clear of the active crane radius.

If tire is to be discarded, place on pallet.

If tire is to be re-installed, place on cribbing.

Use sandpaper or emery cloth.

If uncleanable then replace key with one inch keystock.

To be done while heating the spare tire and removing the crane block from the removed tire.

Loc-tite is used to alleviate pressure from the inner split retainer ring.

To be done while heating the spare tire and removing the crane block from the removed tire.

Ensure the spreader bar is level for equal pull and maintain a constant tension.

Execute when the bottom tire being removed is being heated.

Mechanic opens propane valve slightly while another mechanic is igniting flame.  Adjust both air and propane to obtain proper mixture of gas.

Proper air/gas mixture shows a flame detached from nozzles approx. 1" (blue flame).

Use a heat pencil or infrared meter to verify the removal temperature is 250 degrees fahrenheit (do not exceed).

Execute a constant lift when separation begins to occur between tires.

Ensure all workers are clear of the active crane radius.

One mechanic should be guiding the tire keyway onto key.

It is critical that tire and spreader bar are level to ensure that during installation the tire does not get stuck.

Maintain level when lowering the tire into place over keyway. (Very Critical)

There should not be any gap between the tire and the split retainer because the split retainer may have broken bolts or a bent boss.

Ensure the spreader bar is level for equal pull and maintain a constant tension

Make certain that ring of fire is centered over tire.

Be aware of temperature of tire.

Mechanic opens propane valve slightly while another mechanic is igniting flame.  Adjust both air and propane to obtain proper mixture of gas.

Proper air/gas mixture shows a flame detached from nozzles approx. 1" (blue flame).

Use a heat pencil or infrared meter to verify the removal temperature is 250 degrees fahrenheit (do not exceed).

Ensure all workers are clear of the active crane radius.

One mechanic should be guiding the tire keyway onto key.

It is critical that tire and spreader bar are level to ensure that during installation the tire does not get stuck.

Maintain level when lowering the tire into place over keyway. (Very Critical)

There should not be any gap between the tire and the split retainer because the split retainer may have broken bolts or a bent boss.

Align bolt holes with hub

Ensure the ring is being tightened down evenly.

Do not lower using air line.

Remind workers to use proper lifting techniques.

Utilize hoist to ensure safe insertion of pin to prevent lifting injuries.

Use of slide hammer may be necessary to get the pin into position.

Remind workers to use proper lifting techniques.

Utilize hoist to ensure safe insertion of pin to prevent lifting injuries.

When positioning door, replace gasket if needed.

Make sure safety chains are removed prior to closing.

Set up of cribbing and metal spacing must include enough for two tires.

Do not discard shipping pallet as it will be used in removal of old tire.

Utilizes face shield, rubber gloves, apron & spill protection

Insure heating nozzles centered on the tire face

Check for 4-part block on mobile crane

Sockets, impact (3/4), sledges, 2 -  1 1/4 clevis, air hose adaptor