WRENCH-RACK 1U7299 - Caterpillar

The following procedures must be observed during downhill travel:
Maintain the automatically adjusted engine speed in order to ensure that there is adequate circulation of hydraulic oil.
Always turn OFF automatic engine speed control during travel.
The creeper speed switch must be in the ON position and first gear must be selected for grades that are greater than 10 percent.
Second gear or the automatic transmission shift may be selected for grades less than 10 percent.
First gear should be used for downhill travel at a job site.Select the necessary travel speed range before you start to travel downgrade. Do not change travel speed ranges while you go downhill.Do not allow machine overspeed while you travel downhill. Use the wheel brake pedal to reduce machine overspeed.When the load is pushing the machine, use the slow speed range. Use this range before you start to travel downgrade.Note: The engine speed will be adjusted automatically to an optimum overall system operating point. This will provide an optimum fuel efficiency and lower fuel consumption.Brake System
The parking brake is automatically engaged when the hydraulic pilot oil pressure drops below normal operating pressure. Personal injury could result from a sudden stop of the machine.If the hydraulic pilot oil pressure drops below normal operating pressure, a warning horn will sound, the parking brake indicator will come on, and the action light will come on. Be prepared for a sudden stop whenever the parking brake indicator comes on and the warning horn sounds.
Personal injury could result from the sudden stop of the machine.Be prepared for a sudden stop whenever the parking brake indicator comes on and the warning horn sounds. Correct the reason for the loss of oil pressure or any other cause of the automatic application of the parking brake. Machine movement without repair could result in personal injury or death.
The sealed caps on the travel motor and main pump regulator should never be removed. Unauthorized adjustments of the screws under these caps could result in a loss of braking performance with the potential for personal injury or death.
Moving the machine with the parking brake engaged or the service brake pedal locked can cause excessive wear or damage to the brake. If necessary, have the brake repaired before operating the machine.
Hammer Operation (If Equipped)
Illustration 4 g01315605
Selection of a hydraulic hammer must be done with extra care. Use of a hydraulic hammer not recommended by Caterpillar could result in structural damage to the machine. Consult your Caterpillar dealer for hydraulic hammer information.
Before you start hydraulic hammer operation, close the front window.
In order to avoid structural damage to the host machine or the hydraulic hammer, comply with the following:Do not attempt to break rocks or concrete by burying the hammer tool completely into the rocks or concrete.Do not apply a prying force to the hammer tool in order to remove the hammer tool from the material.
Do not allow the hydraulic hammer to operate continuously at one location and for more than 15 seconds. Change the location of the machine and repeat the