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Mobile Tire Boom Truck - Tire Changer

Mobile Tire Boom Truck - Tire Changer
Start of Day Pre-op Service Truck Inspection Site Survey Jacking/Cribbing Dismount tire Mount tire End of Job Activities End of Day Activities
1. Start of Day
Clock in
Be on time
Be ready to work
Have proper attire
Work boots
Safety glasses
Check with service manager
Ask about pending jobs
Review if additional work is needed at previously assigned sites
Ask about new jobs
Get location of jobs Priority 2
Get directions to job site
Obtain work/service order
Log start time
Obtain supplies needed Priority 2
Tire size
Brand of tire
Wheel position
Obtain tire
Load onto truck
Secure tire - chain and binder or ratchet strap
Ensure load is evenly distributed
2. Pre-op Service Truck Inspection
Check service truck for supplies Priority 2
Refer to supply checklist
Repair materials
Properly marked closed containers
Check equipment and tools
Check bead breaker and rams
Oil leaks
Broken parts
Bent parts
Check air/hydraulic pumps and jacks
Fluid levels
Check cribbing
Hardwood - all assorted sizes
Check wheel chocks
2 sets
Check hand tools
Check wrenches
Check hammer
Check pneumatic tools
Check impact wrenches
Check impact sockets
Check buffer
Check grinder Priority 2
Grinder has to be laid upside down until wheel stops spinning
Check drill
Check tire irons
Check chains, slings, and binders
Examine service truck
Conduct DOT pre-trip inspection Priority 2
See service truck inspection report
Check fluid levels Priority 2
Washer fluid
Engine oil
Compressor oil
Power steering
Brake fluid
Accessories hydraulic fluid
AT fluid
Fuel gauge
Check PTO
Engage PTO
Examine crane Priority 3
See crane manual
Check hoses Priority 3
Check cylinders Priority 3
Check fastenings Priority 3
Welds, gussets, base plate bolts, pins. Always replace parts with OEM parts, Grade 8 or better
3. Site Survey
Follow and obey all customer/site rules Priority 3
Subtopic Priority 2
Stop at office
Get site specific training Priority 3
Poor customer relations
Personal injury
Loss of production for both sides
Get directions to location of equipment to be serviced
Put on proper personal protection equipment Priority 3
Discuss putting on PPE prior to leaving service truck
Some companies may require additional PPE
Travel to equipment requiring service
Establish communication with machine operator if applicable Priority 3
Make sure to establish communication with the machine operator before approaching equipment
Park service truck
Set park brake Priority 2
Chock or turn wheels to berm Priority 2
Engage flashers or warning lights Priority 2
Ensure equipment is lock-out/ tag-out Priority 3
Lock and tag
Lock door
Remove key
Safety cone on seat
Always use 3-point contact when entering/exiting service truck or equipment
Chock equipment to be serviced Priority 3
Walk around equipment to be serviced and observe area Priority 3
Electric overhead wires
Underground piping
Surface water
Surface wiring
Soft ground
Traffic lanes
Personnel movement
Determine if replacement tire is correct size and application
Failure to determine early enough could be wasting time and productivity
Determine if equipment can be serviced at this location
If there is any safety issues, ask company to move the equipment. Do not position yourself between the highwall and equipment to be serviced.
Determine if you are familiar on this type of particular equipment or wheel assembly. If you are not, STOP Priority 3
Do Not Proceed Any Further! Contact Your Supervisor
Position your service truck
Position boom parallel to tire to be service Priority 2
Keep service truck as far away as practical Priority 2
More distance is better
Park service truck
Set park brake Priority 3
Engage PTO and set fast idle switch
Engage flashers or warning lights Priority 2
Chock or turn wheels to berms Priority 2
Set outriggers Priority 3
See Operator's Crane Safety Manual
Place safety cones around work area Priority 2
Company policy
4. Jacking/Cribbing
Articulating equipment must be pinned or locked in place Priority 3
Could also shift while trying to remove the tire
Remove cribbing from service truck and place near jacking point
Use proper lifting techniques
Wear gloves when handling cribbing
Jack or support only at manufacturer's specified locations Priority 3
This information has to be obtain from site personnel
Begin building two cribs
One for jack
One for support
A crib means to stagger direction of blocking material for strength and stability
Build jacking crib to within height of jack
Cribbing procedure may change depending on design of equipment being serviced. If jack starts to tilt you need to reposition cribbing
Build support crib as high as possible to support point of the equipment to be serviced
Raise jack enough to insert final support crib
Must be high enough to remove old tire - take in consideration the tread depth on new tire
Lower jack until equipment rests on support crib Priority 3
Leave jack in place but equipment must rest on support crib
Visually inspect the crib after the equipment is lowered for stability Priority 3
Gently nudge the equipment with your boom arm and observe cribbing from movement Priority 3
This is a point of no return. Once you start to change the tire, if the cribbing becomes unstable, you are in big trouble
Remove the valve core to deflate tire
Never try to service an inflated tire. For maximum productivity while tire is deflating take this opportunity to set up necessary tools for the job.
5. Dismount tire
Run a wire through the valve to be sure tire is completely deflated Priority 3
Remove necessary tools from service truck
Tools vary with types of assembly
Refer to TIA Service Manual for proper tools
Break front bead far enough to remove the lock ring and the O-ring
Remove lock ring and O-ring
Insert bead breaker tool into bead breaker notch in bead seat band and set adjustment screw
Use bead breaker tool to remove bead seat band from front bead Priority 3
When using bead breaker tool, operator must stay out of trajectory of tool
Remove bead seat band and front flange ring from wheel assembly
Lay the wheel components on the ground on top of cribbing materials on one end for cleaning
Lay on cribbing to prevent injury from falling or rolling
This prevents additional dirt on components
Move bead breaker to back of rim
Break back bead Priority 3
When using bead breaker tool, operator must stay out of trajectory of tool. Be aware of brake lines, hydraulic lines on the equipment being serviced.
Place sling on boom
Examine sling for defects
Move boom and sling over center of tire
Adjust sling snugly around tire Priority 3
Caution: You may not always be able to use a sling on all equipment
Lift the weight of the tire off the rim while retracting the boom to remove tire from wheel Priority 2
This must be done gradually to avoid equipment shift and tire snagging and moving suddenly
Be sure rear flange ring is not stuck to tire before removing tire completely from wheel
Whenever handling tire with boom never position yourself between the tire and the equipment being serviced and the service truck Priority 3
Crane trucks have more than one set of controls to allow you to operator crane from a safe position
Keep tire as close to the ground as possible when moving tire with boom Priority 3
Set tire safely to side Priority 3
If tire must remain standing, lean, block and chock securely to prevent movement
Lay down tire if possible
Clean and inspect rim base for cracking, deterioration and distortion Priority 3
Remove all rust, corrosion, dirt or debris from wheel and all components
Pay close attention to lock ring and O-ring gutter Priority 3
O-ring must seat properly for the tire to retain air
Look at wheel components identification stamping to make sure they match Priority 2
If there is a question on component matching, contact your supervisor
Replace complete valve assembly
Leaking valves can cause loss of productivity and redo and customer dissatisfaction
Replace any damage, bent, severely rusted or corroded component Priority 3
6. Mount tire
Remove new tire from service truck utilizing boom and bead hook
Lean tire against service truck and chock securely in place Priority 3
Remove bead hook
Install tire sling around tire snugly Priority 3
Caution: You may not always be able to use a sling on all equipment
Inspect replacement tire for damage
Examine the inside of tire for water, debris, and any foreign material Priority 2
Inspect and lubricate tire beads with an approved tire lubricant
Lubricate wheel with an approved lubricant
Align inside flange ring with lock where applicable Priority 2
Move boom and sling overtop of replacement tire
Adjust sling snugly around tire Priority 3
Caution: You may not always be able to use a sling on all equipment
Using boom move tire to wheel
Center tire and proceed to boom out and push tire on rim
Remove sling
Hold tire in place with boom
Install flange ring
Lubricate bead seat band and install
Lubricate and install new O-ring Priority 2
Install proper size and thickness O-ring
Install lock ring Priority 2
Warning: Never reuse a sprung or bent lock ring. Replace it!
Visually inspect components for proper alignment and debris free
Place boom snugly against the machine but not so tight as to push the equipment off the block or to prevent proper seating Priority 3
Never stand in trajectory while inflating tire
Use boom as a restraining device in case lock ring flies off during inflation
Remove valve core and begin inflating tire with remote control inflation device
Never stand in trajectory while inflating tire
Observe proper seating of lock ring assembly during initial inflation Priority 3
If the bead or rings are not seating or locking properly, deflate the tire before making any adjustment
Install valve core after beads and rings are seated
Inflate tire to recommended pressure Priority 2
Don't guess, use a calibrated gauge, check with the company maintenance department or look-up in manual
Replace and tighten securely the valve cap
Swing boom back over bed of service truck
Jack up the equipment slightly and start removing cribbing
Lower equipment in reverse manner from raising equipment
7. End of Job Activities
Repack cribbing onto service truck and secure
Clean all tools and return all tools and materials to proper place on service truck
Load and secure old tire to bed of service truck Priority 3
DOT regulations require all loads be secured. Personal fine and possibly prison
Return boom to stow position and tie down if necessary
Clean debris from service truck bed if necessary
Retract the outriggers
Disengage the PTO and shut down fast idle switch
Remove chock from customer's equipment
Remove lock-out/tag out, cone on seat
Complete paperwork Priority 3
Unit number
Make of machine
Check tread depth
Customer signature
Return keys to equipment
Notify customer equipment is ready to be returned to service
Make one last walk around to make sure all tools are picked up and cabinets are closed securely and your cones are properly stowed and work area has been cleaned Priority 2
Always leave the work area as clean or cleaner than it was when you arrived
8. End of Day Activities
Remove old tire from bed of truck
Use same procedure as you would at the job site
Mark tire with customer's name and disposition
Complete paperwork and hand in Priority 3
Report any maintenance issues or problems with your service truck
Replenish service supplies if time permits
Clock out