SEBU7581-09 B Pala 938G.pdf

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2010 CaterpillarAll Rights Reserved

BEFORE OPERATIONOperation and MaintenanceManual Excerpt

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SEBU7581-09

March 2010

Operation andMaintenance

Manual938G Series II Wheel Loader andIT38G Series II Integrated Toolcarrier

CRD1-Up (938G)RTB1-Up (938G)

PHN1-Up (938G)B9Y1-Up (938G)CSX1-Up (IT38G)JAN1-Up (IT38G II)

SAFETY.CAT.COM

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SEBU7581-09 41Operation SectionBefore Operation

Operation Section

Before Operation

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Mounting and Dismounting

SMCS Code: 7000

g00037860Illustration 34

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 andtwohands.

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.

Alternate Exit

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

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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. Look for loose bolts, trash buildup, oil,coolant leakage, broken parts, or worn parts.

Note: Watch closely for leaks. If you observe a leak,find the source of the leak and correct the leak. If yoususpect a leak or you observe a leak, check the fluidlevels more frequently.

Inspect the condition of the equipment and of the

hydraulic components.

Check the condition of the tires. Adjust the inflationpressure, if necessary.

Check all of the oil levels, all of the coolant levels,and all of the fuel levels.

Remove any trash buildup and debris. Make allnecessary repairs before you operate the machine.

Make sure that all covers and guards are securelyattached.

Adjust the mirrors for the correct rear view of themachine.

Grease all of the fittings that need to be serviced ona daily basis.

Daily, perform the procedures that are applicable toyour machine:

Operation and Maintenance Manual, BackupAlarm - Test

Operation and Maintenance Manual, BucketCutting Edges - Inspect/Replace

Operation and Maintenance Manual, Bucket Tips- Inspect/Replace

Operation and Maintenance Manual, CoolingSystem Level - Check

Operation and Maintenance Manual, Engine AirFilter Service Indicator - Inspect

Operation and Maintenance Manual, Engine OilLevel - Check

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42 SEBU7581-09Operation SectionBefore Operation

Operation and Maintenance Manual, Fuel SystemPrimary Filter (Water Separator) - Drain

Operation and Maintenance Manual, HydraulicSystem Oil Level - Check

Operation and Maintenance Manual, QuickCoupler - Check

Operation and Maintenance Manual, Seat Belt -Inspect

Operation and Maintenance Manual, TransmissionOil Level - Check

Operationand Maintenance Manual, Windows -Clean

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Steering Frame LockSMCS Code: 7506

No clearance for person in this area when machineturns. Severe injury or death from crushing couldoccur.


The steering frame lock is located at the articulationjoint on the left side of the machine.


To connect the steering frame lock, move steeringframe lock (3) to the front frame and install pin (2).Secure the pin with locking pin (1).


To separate the steering frame lock, move steeringframe lock (3) to the rear frame and install pin (2).Secure the pin with locking pin (1).

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SEBU7581-09 43Operation SectionBefore Operation

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Battery Disconnect Switch

SMCS Code: 1411


Open the access door on the right side of themachine. The battery disconnect switch is located inthe engine compartment.

Disconnect Switch ON To activate theelectrical system, insert the key for thebattery disconnect switch and turn the key

clockwise. The battery disconnect switch must beturned to the ON position before you start the engine.

Disconnect Switch OFF To deactivatethe electrical system, turn the key for the

battery disconnect switch counterclockwiseto the OFF position.

The battery disconnect switch and the enginestart switch perform different functions. To disablethe entire electrical system, turn off the batterydisconnect switch. When you only turn off the enginestart switch, the battery remains connected to theelectrical system.

Turn the battery disconnect switch to the OFFposition and remove the key when you service theelectrical system or any other machine componentsand when the machine will not be used for anextended period of a month or more. This will preventdrainage of the battery.

NOTICENever move the battery disconnect switch to the OFFposition while the engine is operating. Serious dam-age to the electrical system could result.

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SEBU7581-09 B Pala 938G.pdf