PUMP GP-GOV & FUEL INJ 1471148 - Caterpillar

Personal injury or death can result from a brake malfunction. Do not operate the machine if the brake was applied due to a malfunction of the brake system.Correct any problem before attempting to operate the machine.
Note: The parking brake is located on the final drive planetary (drum).
In order to prevent the machine from moving, block the drum and block the tires securely.
Illustration 1 g02219014
In order to hold the front frame and the rear frame rigid, install the steering frame lock pin.
The brakes can be released when you use the following procedure.
Illustration 2 g00040674
In order to release the brakes, use the FT-1973 Adapter Group and the FT-1845 Pump Group.
Connect the brake release hose to the FT-1973 Adapter Group (5).
Turn the handle (4) of the bypass to the CLOSED position.
Observe the opening pressure of the relief valve (2) while you operate the pump handle (3).
Possible brake piston seal damage could result without checking the relief valve. The opening pressure must be checked and adjusted before making a connection.
Adjust the opening pressure to 2413 69 kPa (350 10 psi). Turn the handle (4) of the bypass to the OPEN position.
Illustration 3 g02818900
Disconnect the brake line. In order to prevent the loss of fluid, plug the brake line. Note: Depending on machine configuration there may be two brake lines connected to the propel pump. Remove the T junction from the pump that both lines are connected to.
Connect the 8T-2857 Brake Release Adapter to the brake line, or the T junction that connects to both brake lines, depending on configuration. Install the remainder of the FT-1973 Adapter Group (5) to the pump pressure hose.
Place the pump near the operator.
Turn the handle (4) for the bypass to the CLOSED position.
Operate the pump handle in order to produce a pressure rise. The seal is seated when the pressure rises to the maximum value.
When the engine is stopped, additional steps are required before the machine is towed. Refer to the Operation and Maintenance Manual, "Towing the Machine" for more information.
The machine can be towed. Tow the machine for short distances only. Tow the machine at a slow speed of less than 2 km/h (1.2 mph).