COVER 6N9275 - Caterpillar

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Disengage the parking brake by moving parking brake control (2) to the OFF position.
Move transmission control (3) to the FIRST SPEED FORWARD position.
Gradually increase the engine speed to 1750 rpm. The machine should not move.
Reduce the engine speed to low idle. Move the transmission control to the NEUTRAL position. Engage the parking brake. Stop the engine.
If the machine moved while testing the brakes, contact your Caterpillar dealer.Have the dealer inspect and, if necessary, repair the service brake before returning the machine to operation.
Parking Brake Holding Ability Test
The standard parking brake control is a pull-to-engage type. When the knob is pulled OUT, the parking brake will be engaged.Certain mining regulations require machines to be equipped with a push-to-engage parking brake control. When the knob is pushed IN, the parking brake is engaged.Before operating the machine, ensure you are familiar with the operation of the parking brake control.
Standard Pull-to-Engage Type
Personal injury can result if the machine moves while testing the parking brake.If the machine begins to move during the test, reduce the engine speed immediately and apply the service brakes.
Move the transmission control to the NEUTRAL position. Start the engine.
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Engage the parking brake by pulling parking brake control (1) out to the ON position.
Illustration 4 g01417755
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Move transmission control (2) to the FIRST SPEED FORWARD position.Note: Parking brake indicator (4) and action lamp (3) should illuminate. The action alarm should sound.
Gradually increase the engine speed to 1600 rpm. The machine should not move.
Reduce the engine speed to low idle. Move the transmission control to the NEUTRAL position. Stop the engine.
If the machine moved while testing the brakes, contact your Caterpillar dealer.Have the dealer inspect and, if necessary, repair the parking brakes before returning the machine to operation.
Optional Push-to-Engage Type
Personal injury can result if the machine moves while testing the parking brake.If the machine begins to move during the test, reduce the engine speed immediately and apply the service brakes.
Move the transmission control to the NEUTRAL position. Start the engine.
Illustration 6 g01417763
Engage the parking brake by pushing parking brake control (1) in to the ON position.
Illustration 7 g01335741
Illustration 8 g01417757
Move transmission control (2) to the FIRST SPEED FORWARD position.Note: Parking brake indicator (4) and action lamp (3) should illuminate. The action alarm should sound.
Gradually increase the engine speed to 1600 rpm. The machine should not move.
Reduce the engine speed to low idle. Move the transmission control to the NEUTRAL position. Stop the engine.
If the machine moved while testing the brakes, contact your Caterpillar dealer.Have the dealer inspect and, if necessary, repair the parking brakes before returning the machine to operation.