797F Operacion

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2010 CaterpillarAll Rights Reserved

BEFORE OPERATIONOperation and MaintenanceManual Excerpt


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SEBU8417-01

November 2010

Operation andMaintenance

Manual797F Off-Highway Truck

LAJ1-Up (Machine)

SAFETY.CAT.COM


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36 SEBU8417-01Operation SectionBefore Operation

Operation Section

Before Operation

i04021647

Mounting and Dismounting

SMCS Code: 7000

g00037860Illustration 33

Typical example

Mount the machine and dismount the machine onlyat locations that have steps and/or handholds. Beforeyou mount the machine, clean the steps and thehandholds. Inspect the steps and handholds. Make

all necessary repairs.

Face the machine whenever you get on the machineand whenever you get off the machine.

Maintain a three-point contact with the steps and withthe handholds.

Note: Three-point contact can be two feet and onehand. Three-point contact can also be one foot andtwo hands.

Do not mount a moving machine. Do not dismount amoving machine. Never jump off the machine. Do

not carry tools or supplies when you try to mount themachine or when you try to dismount the machine.Use a hand line to pull equipment onto the platform.Do not use any controls as handholds when youenter the operator compartment or when you exit theoperator compartment.

Machine Access SystemSpecifications

The machine access system has been designed tomeet the intent of the technical requirements in ISO2867 Earth-moving Machinery Access Systems.The access system provides for operator access tothe operator station and to conduct the maintenanceprocedures described in Maintenance section.

Alternate Exit

Machines that are equipped with cabs have alternateexits. For additional information, see Operation andMaintenance Manual, Alternate Exit.

i03722260

Daily Inspection

SMCS Code: 1000; 7000

For a maximum service life of the machine, completea thorough walk-around inspection before you mountthe machine and before you start the engine.

Inspect the area around the machine and under themachine. Visually inspect the condition of all majorcomponents. Look for loose bolts, trash buildup,oil leakage, coolant leakage, broken parts, or wornparts.

Note: If you suspect a leak or you observe a leak,qualified personnel should complete an inspectionbefore you operate the machine.

Remove any trash and any debris.

Report any abnormalities to the shop. Qualifiedpersonnel should complete any necessary repairsbefore you operate the machine.

Check the grease fittings on the machine for leaksand for damage.


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SEBU8417-01 37Operation SectionBefore Operation


Inspect cover (1) on the control box. Inspect warninglight (2). Make sure that the cover for engineshutdown switch (3) is down.

Inspect the ladders for damage.

Inspect the radiator for leaks.

Remove any debris that could block the airflow tothe radiator, the aftercooler, or the air conditioningcondenser.

Inspect the engine for oil leaks and for coolant leaks.

Inspect both front tires. Check the tire inflation. Checkthe inside of the tire for damage and for wear. Inspectthe tire treads for damage. Remove large rocks fromthe treads. Check for fasteners that are loose ormissing.

Inspect all four rear tires. Check the tire inflation.Check the inside of the tire for damage and for wear.Inspect the tire treads for damage. Remove rocks thatare stuck between the tires. Remove large rocks from

the treads. Make sure that the rock ejectors swingfreely. Check for fasteners that are loose or missing.

Note: Rust behind a bolt may indicate that the bolt isloose. Shiny metal areas around a bolt may indicatethat the bolt is loose.

Inspect the steering cylinders for leaks and fordamage. Inspect the steering tie rods for wear andfor damage. Inspect the front suspension cylindersfor leaks and for damage. Inspect the fasteners forthe front suspension cylinders.

Inspect the torque converter and the transmissionfor leaks.

Check the level in the fuel tank . Look for any leaks inthe fuel tank. Look for damage to the fuel tank.

Inspect the rear axle for leaks. Check the rearsuspension cylinders for leaks and for damage.

Check all lights, including headlights, operatinglights, backup lights, service lights, access lights,turn signals, running lamps, and stop lamps. Checkthe lights for proper operation. Inspect the lights fordamage.

Inspect the hydraulic tank for leaks and for damage.Make sure that the filler cap is installed.

Inspect the steering tank for leaks and for damage.Make sure that the filler cap is installed.


Check level gauge (4) on the automatic lubricantreservoir. Inspect tank (5) for leaks.

Remove any debris that may obstruct the airfilters.

Remove any debris from the platform.

Make sure that the ladders and hand rails are secure.

Make sure that all of the windows are clean. Makesure that the operator's vision is not impaired by dust,

mud, or other foreign materials. Adjust the mirrorsfor proper vision.

Inspect the cab airfilter for a damaged element orreduced performance.


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38 SEBU8417-01Operation SectionBefore Operation

When it is necessary to work under the machinewith the body (bed) raised, attach the body (bed)retaining cables to the body retaining pins. Installthe body retaining pins through the ends of the re-taining cables. Always use both retaining cables.

Failure to properly secure the body (bed) may re-sult in personal injury or death.

Raise the dump body to the fully raised position andinstall the truck body retaining cables. For the properprocedure, refer to Operations and MaintenanceManual, Cable (Truck Body Retaining).


Inspect body (6) and the frame (7) for cracks. Inspect

the body and the frame for damage.

Inspect the hoist cylinders for leaks or for damage.Inspect the hoist cylinders for cracking on the cylindersurface and for marks on the cylinder surface.

Check the steering system for proper response.

Check the braking system for proper operation.

Perform the following daily procedures for yourmachine:

Operation and Maintenance Manual, Air TankMoisture and Sediment - Drain

Operation and Maintenance Manual, BackupAlarm - Test

Operation and Maintenance Manual, Indicatorsand Gauges - Test

Operation and Maintenance Manual, CoolingSystem Coolant Level - Check

Operation and Maintenance Manual, Differentialand Final Drive - Check

Operation and Maintenance Manual, Engine OilLevel - Check

Operation and Maintenance Manual, Hoist andBrake Tank Oil Level - Check

Operation and Maintenance Manual, Seat Belt -Inspect

Operation and Maintenance Manual, SteeringSystem Oil Level - Check

Operation and Maintenance Manual, TorqueConverter Sump Oil Level - Check

Operation and Maintenance Manual, Front WheelOil Level - Check

797F Operacion

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