ttt – chapter 1 – machine walkaround

TTT – Chapter 1 – MachineWalkaround

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An important part of safety for any heavy equipment operator is machine inspection. Toensure your own safety and that of other job site personnel, and to make sure yourmachine is in good operating condition, conduct a walkaround inspection of the machinebefore beginning operation. Walkaround inspections take only a few minutes, yet theyare one of the best ways to prevent mechanical problems and safety hazards. Forexample, when a fluid leak is discovered, a loose hose fitting or some other problem,before a failure, it helps avoid injuries and minimize repair time. Inspect the entire pieceof equipment carefully with this in mind.

Get to know the machine by reading and understanding the Operation and MaintenanceManual. Use your senses of sight, smell, hearing, and touch. The simulated machinewalkaround for the Dozer/Track Type Tractor will help you get started on your path tolearning proper inspection procedures.


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TIP:

Walkarounds should be conducted the same way every time. Begin atthe mounting point of the machine. Move around the Dozer,conducting the inspection and finishing at the mounting point. This willensure that nothing is missed.

Inspect the machine before operation for the safety of all personnel and ensure anymaintenance issues are identified and reported.

Why Do Walkarounds?Machine walkarounds are conducted to ensure the safety of machines and the people whooperate them, and must be performed before operation. By identifying potential or


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existing problems on the Dozer, operators can reduce machine maintenance downtime,increase machine life and performance, while ensuring their own safety, and that ofoperators and personnel around them.

TIP:

Conduct a walkaround inspection at the beginning of shift, anytimeyou get off the machine, and at the end of the shift.

Safety & MaintenanceBeing able to correctly identify machine components and functions, understand gaugesand warning labels, and communicate concerns to maintenance personnel, will result in areduction of hazards developing in the workplace.

Identifying maintenance issues early will greatly reduce machine downtime andmaintenance costs. Ignoring a cracked radiator hose can quickly turn into a crackedradiator core! This translates into a much larger job for maintenance personnel and amuch higher cost to the organization. Practicing preventative maintenance not only keepsthe machine productive, but keeps the operator safe from injury. The safer the conditionof the machine, the safer the operator will be. Note: Learn more about DashboardWarning Symbols in the “Controls Familiarization” chapter of this material.


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Learn what to look for when conducting a machine walkaround. Report a maintenanceissue immediately to ensure it doesn’t turn into a larger and more costly problem later

on.

How ToSelect the Walkaround training exercise from the menu on the screen.


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Select the Walkaround training exercise from the SimU Campus drop-down menu.

Instructions will appear on how to conduct a walkaround inspection to determine ifthe machine is in operational condition. Different areas of the machine are focusedon, one area at a time. A list of broken parts is randomly generated each time themodule is entered. The user should pass the mouse over the inspection points toilluminate each point individually.Click on the illuminated inspection point to zoom in on the machine and identify anyfaults. Or click the component name within the list at the top left of the screen toilluminate and zoom in on the inspection point.Correctly identify the inspection points as good or faulty by clicking the green checkmark for “good,” or the red X for “faulty.” When correctly identifying the need formaintenance, a positive or negative response will be heard and repairs will be madebefore proceeding to the next inspection point.


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When finished with the walkaround a note will appear at the lower edge of the screenstating “Exercise Complete”.

The exercise will end and a detail report will appear showing the operator’s resultsafter the entire machine has been inspected. When operating in Practice mode,these measurements will not be saved. Exam mode measures and records theoperator’s actions and saves them to a database that can be accessed byinstructors or administrators.

TIP:

ALWAYS apply the implement lockout switch and the park brake beforeleaving the Dozer.


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Understanding Engine Fluids

Operators should know where the fluid intakes on the machine are located as wellas what fluids are needed. The oils listed below are used to lubricate moving partsin the engine.

Transmission OilEngine OilPivot Shaft Oil

Note: If there is insufficient pivot shaft oil in the reservoir supplying the pivot shaft,the seals and bearings could burn out, and the shaft would eventually seize andshatter.


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Exercise Benchmarks: Metrics ReportedMetric (Result Measured) Definition Why It’s Measured

Execution Time This metric stores the totalamount of time the studentspent completing theexercise.

Student needs to showability to perform anaccurate inspection in atimely manner.

Number of WalkaroundFaults Incorrectly Markedas Good

This metric records thenumber of parts marked asgood when they shouldhave been marked faulty.


Number of WalkaroundPoints Correctly Identifiedas Faulty

This metric records thenumber of parts marked asfaulty when they shouldhave been marked faulty.


Number of WalkaroundPoints Correctly Marked asGood

This metric records thenumber of parts marked asgood when they shouldhave been marked good.


Number of WalkaroundPoints Incorrectly Markedas Faulty

This metric records thenumber of parts marked asbad when they should havebeen marked good.


Number of WalkaroundPoints Not Inspected

This metric records thenumber of parts that werenot inspected.


Total Number ofWalkaround InspectionPoints

This metric records the totalnumber of parts to review inthe walkaround.

Important to recognize andidentify all components ofthe machine.

www.catsimulators.com© 2019 Caterpillar. All Rights Reserved. CAT, CATERPILLAR, LET’S DO THE WORK, their respective logos, “Caterpillar


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Yellow,” the “Power Edge” and Cat “Modern Hex” trade dress as well as corporate and product identity used herein,are trademarks of Caterpillar and may not be used without permission. www.cat.com / www.caterpillar.com Thirdparty trademarks are the property of their respective owner. Simformotion™ LLC is a licensee of Caterpillar Inc.

ttt – chapter 1 – machine walkaround

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