TYREgate Checklist 2

7/29/2019 TYREgate Checklist 2

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TYREgate Information

Phone: +61 7 3346 4081

Fax: +61 7 3346 4067

EMESRT CATEGORY:

Risk of wheel nuts falling off due to the

failure to retorque some time after fitmentClick to view this EMESRT Risk

Site Answers & Comments:TYREgate Reference:35

Reuse of damaged rim componentsRoot & Contributing Causes:

LTA fitment ? insufficient cleaning of mating surfaces.q

Preventative / Recommended / Accepted Steps of Risk Mitigation,Points of Interest:

Manufacturers of multi-piece rims list a number of important procedures. Do not use ahammer or any other object to force rim components in place. Do not attempt to take rimcomponents apart on inflated tyres. Always use a clip on chuck that permits a person tostand clear of the potential path of rim components when inflating tyres on these rims.Always deflate the tyre before removing a wheel from an axle and before removing thetyre from the rim, by removing the valve core. Do not rework or reuse damaged rimcomponents. A rubber type lubricant must be applied to the tyre bead and the contactsurfaces of the rim during assembly of wheel and inflation of the tyre. Wherever possibletyres must be inside a cage during inflation. If this is not possible all personnel muststand well clear of the tyre and rim components during the inflation. Do not rest or leanany part of your body or any equipment against the cage during the inflation process. Do

not inflate a tyre above 35 kpa whilst it is outside of a cage, unless the area can beisolated. Always inspect the tyre after it has been inflated whilst it is still in the cage toensure all components are correctly fitted. In addition to these recommended proceduresit was recognized that "Sur-Loc" bands which are welded to bead seat bands on some ofthe multi-piece rim assemblies can cause obstruction to proper visual inspection of thefitment of lock-rings. If the "Sur-Loc" bands have been hammered, the resultant burringand/or deformation can interfere with the fitting of the lock-ring and can move thelock-ring out of the correct position during tyre inflation. Recommendations are alsomade about the use of special tools to check the profile of lock-ring grooves and lockrings to avoid incidents of this type.

Click to view this TYREgate record.


Not following established procedures, and usinglow/wrong torque setting on assemblyRoot & Contributing Causes:

Inadequate torqueq


Only trained and competent personnel are permitted to carry out re-torques.q

Safe and correct wheel stud/nut torque can only be achieved using purpose designedq

torque tools, manual or hydraulic.

Rattle guns must only be used to tighten the wheel studs/nuts and must not solely beq

relied on to torque up wheel suds/nuts.

Ensure that torque tools are able to deliver the required OEM specified torque, areq

Disclaimer: The recommendations provided are suggestions only and may not be applicable for the specific situation at site and must beverified using a site specific risk assessment. UQ/MIRMgate does not accept any responsibility for the effectiveness or validity of thesuggested recommendations.

15 Mar 2013

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Phone: +61 7 3346 4081

Fax: +61 7 3346 4067

inspected, fit for purpose and fully serviceable before the job commences.

The torque tool, manual or hydraulic, must be 'in calibration' and the calibrationq

certificate must be readily available. Note: The work must not proceed if the torque gunis 'out of calibration' - this can be verified by checking its last calibration date, this mustbe less than 12 months old.

All wheel / rim / hub mating surfaces must be thoroughly cleaned and inspected beforeq

fitment as per SWP.

All wheel studs, Nuts, Cleats etc. are to be inspected individually for damage, corrosionq

and damage, and be cleaned as per SWP.

Damaged/stretched or corroded wheel studs/nuts are to be replaced. Stud holes are toq

inspected also for ovality or other damage.

For hydraulic torque multiplier tools, the air regulator chart must be current, andq

available at the tyre bay so that the serviceman can correctly set the tool to deliver theOEM required torque, failure to consult with the chart will result in the wheel not beingtorqued to the correct setting and cause the wheel to become loose in service. Note: Donot proceed unless the chart had been checked and the correct setting has beenestablished. Charts are not interchangeable, and each tool must have its unique chart(refer to serial number of gun) available in the tyrebay.

Where required by the OEM, ensure the correct lubricant type and amount is applied toq

the stud/nut, and never over tighten a wheel stud/nut beyond its OEM specified torque.

Failure to abide by these simple steps will not only cause a hazardous condition, puttingq

people and equipment at risk, but may also result in disciplinary action includingdismissal.



Vehicle was not returned for retorque (as perprocedure which caused wheel to become looseand come off during serviceRoot & Contributing Causes:

LTA procedureq


After any wheel assembly has been refitted which requires the attachment system toq

be retorqued, an information, retorque or mine site specific tag is to be attached by thetyre serviceman in a visible location to the inside of the vehicle cabin (eg. retarderlever).

As the vehicle is handed back to production, or the vehicle remains down for furtherq

mechanical maintenance, Dispatch and or Operations Supervision is to be notified toraise a retorque alert on the mines dispatch system and or to remind the operatorabout the vehicles retorque requirements. These actions will alert both the operatorand dispatch that a retorque is due should the tag accidentally be overlooked.

Tyre service personnel are to maintain up-to-date records of outstanding retorquesq

each shift, and action any outstanding retentions.

After a vehicle has been retorqued, the tag is to be signed by the tyre serviceman,q

stapled to the tyre change documentation and be securely filed.

Communication with Operations personnel: all personnel are to be made aware of theq

importance of wheel retentions and potential risks if retentions are not carried out.



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Phone: +61 7 3346 4081

Fax: +61 7 3346 4067


Movement of vehicle le partly disassembledRoot & Contributing Causes:

LTA procedureq

LTA communication between work teams.q


When a number of work teams work on the same vehicle, ensure there is clearq

communication and a common understanding of the job and its impacts before a job iscommenced , i.e. a task carried out by one party must not create an adverse situationfor the other party.

Before a truck can be relocated with Pos 3 and 6 assemblies removed, ensure that atq

least 20 wheel studs are fitted evenly around the hub to the outside positions - thisaction is to be adopted for all CAT 785, 789,793 & 797 trucks.

Check relevant SWPs and OEM documentation if this precaution also applies to otherq

trucks and type of equipment.Click to view this TYREgate record.


Accidental contact with high voltage lineRoot & Contributing Causes:

Contact with Powerlineq


Remain clear of all fallen power lines. Isolate supply and alert fire crew. The driver of anyvehicle in contact with a power line should remain in the vehicle and summon assistance.If assistance is unavailable, driver should attempt to free vehicle by driving away. Vehicleshould be driven into a clear area where it can be left and driver evacuated. Driverrescue may be effected using a similar vehicle which should approach from the front toallow the driver to step across. Vehicle should not be approached within 300 m and 24hrs Deflation of tyres should not be attempted. Following 24 hours stand down period, alltyres require internal inspection. Avoid erection of powerlines in mobile equipmentoperating areas. Ensure clearance and height indicators requirements as required byAS3000.7.5. Install tray raised alarms and or interlocks which restrict vehicle movementif a tray is not fully lowered Tyres correctly filled with Nitrogen will minimize risk ofexplosion. Strict controls and standards are essential for this to be effective. Mobileequipment personnel need to be aware of the hazards associated with powerline

contacts and their duties and responsibilities should such occur.



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TYREgate Checklist 2

Documents

Transcript of TYREgate Checklist 2