615C Series II Wheel Tractor-Scraper Caterpillar


Parking and Secondary Brake Control

Usage:

615C II 9XG

Parking Brake Control


NOTICE

Do not engage the parking brake while the machine is moving unless the wheel brakes fail. The use of the parking brake as a wheel brake in regular operation will cause severe damage to the parking brake system.




Illustration 1g00577845

Parking Brake - The parking brake knob is on the right side of the cab. Engage the parking brake after the machine has stopped.

Parking Brake Engaged - Pull out the knob in order to engage the parking brake.

Parking Brake Disengaged - Push in the knob in order to release the parking brake. The parking brake actuator will start to disengage the parking brake when the air pressure in the parking brake circuit reaches 434 kPa (63 psi).

Note: The parking brake will engage automatically if air pressure falls below 241 kPa (35 psi).

Secondary Brake Control



Illustration 2g00577874

Secondary Brake Control - The secondary brake control is on the right side of the cab. Engage the secondary brake control after the machine has stopped.

Secondary Brake Engaged - Pull out the knob in order to engage the secondary brake .

Secondary Brake Disengaged - Push in the knob in order to release the secondary brake. The air pressure must be above 850 ± 50 kPa (123 ± 7 psi) in order to release the secondary brake.

Note: The secondary brake will engage automatically if air pressure falls below 280 kPa (41 psi).

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