938G Wheel Loader and IT38G Integrated Toolcarrier Operation Information Caterpillar


Operation Information
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1.1. Downhill Operation
2.1. Changing Direction and Speed

Follow these basic instructions whenever you are operating the machine:

  • To prevent injury, make sure that no one is working on the machine or near the machine. Always maintain control of the machine.

  • Raise the bucket or the work tool enough to negotiate any obstacles.

  • Before you release the parking brake, depress the service brake pedal in order to keep the machine from moving.

  • Drive the machine forward for best visibility and for best control.

  • Reduce the engine speed when you maneuver in tight quarters and when you are going over a hill.

Note: When the machine is using biodegradable hydraulic oil, operation at ambient temperatures above 32 °C (90 °F) should be limited to light duty cycles and short periods of time.

------ WARNING! ------

Personal injury or death can result from falling material.

Remove any overhang and watch for sliding material.

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NOTICE

Do not doze with the bucket in the tilt forward position to avoid bucket damage.



NOTICE

Striking the stops unnecessarily and repetitively can result in accelerated wear and high maintenance cost of the loader linkage.


Downhill Operation

Maintain a ground speed that is slow enough for the conditions. Before you operate down a hill, select the proper gear before you start down the grade. The proper gear should allow the machine to maintain the appropriate speed on the down grade. The throttle control should be at high idle and the engine should not overspeed. In most situations, the proper gear will be the same gear that is required to drive up the grade.

If the machine builds up excessive speed, the engine can overspeed. This can result in damage to the engine and/or damage to the power train data link. Use the service brake or the engine brake in order to slow the machine until a lower gear can be selected. Select the lower gear and proceed with the throttle control at high idle.

Use the service brakes for stopping the machine. Using the service brakes in order to control the travel speed of the machine or using the service brakes for stopping from high speeds can cause the brake and axle oil to overheat. This can result in significant wear and/or damage to the service brakes.

Note: The left pedal should not be used for downhill braking.

Changing Direction and Speed

Speed changes at full engine speed and directional changes at full engine speed are possible. However, when you change directions, deceleration will maximize the comfort of the operator. In order to control the throttle, use the left brake pedal to decelerate. Deceleration will also maximize the service life of power train components.

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