LINK AS-TRACK 6Y1129 - Caterpillar

Personal injury or death could result when towing a disabled machine incorrectly.Block the machine to prevent movement before releasing the brakes. The machine can roll free if it is not blocked.
Extended operation of the secondary steering motor could damage the motor and result in loss of emergency steering capability, which could cause injury or death. The Secondary Steering System should not be used for towing the machine or for other service procedures lasting longer than 5 minutes. The motor should be allowed to cool to ambient temperatures before reuse.
The parking brakes are spring-applied. The parking brakes are released by brake oil pressure.Under normal conditions, the parking brakes are released by brake oil pressure that is stored in the secondary brake accumulator. The brake oil pressure in both brake accumulators is developed when the engine is running. Without adequate brake oil pressure in the secondary brake accumulator, the parking brakes are engaged and the machine cannot be moved.When the engine is inoperable and the brake oil pressure from the service brake accumulator is depleted, the service brakes will not function and the secondary brake pedal will only apply braking force to the rear wheels.Note: When the engine start switch is moved to the OFF position, solenoid valves will fully deplete the brake oil pressure from both brake accumulators.Note: If the engine start switch remains in the ON position, and the transmission control is in the PARK position, a solenoid valve will only deplete the brake oil pressure from the secondary brake accumulator.When the engine is inoperable and the brake oil pressure from the secondary brake accumulator is depleted, the parking brakes can be released by brake oil pressure that is developed by the brake release/secondary steering pump and then routed through the diverter valve.When the parking brake is released by brake oil pressure through the diverter valve, only the secondary brake pedal can be used to stop the machine.For more information on the braking system, refer to Operation and Maintenance Manual, "Braking".In order to tow the machine with an inoperable engine, perform the following steps:
Place the transmission control in the PARK position and place the engine start switch in the ON position. Refer to Operation and Maintenance Manual, "Operator Controls" for more information.
Chock the wheels.
Illustration 1 g01381294
The fuel tank is removed