ROLLER GP-TRACK 7G7594 - Caterpillar

Illustration 1 g02726620
(B) ToolingTest Preparation
Stop the engine and engage the parking brake.
Depress the service brake pedal at least 25 times to remove the oil pressure from the brake accumulators.Test Procedure For Brake Accumulator Oil Pressure Indicator
Illustration 2 g03017156
(1) Brake accumulator oil pressure sensor for the alert indicator (2) Brake accumulator charging valve (3) Pressure tap (brake accumulator oil)
Connect Tooling (B) to pressure tap (3) .
Observe the pressure gauge. Before the engine is started, the oil pressure must be 0 kPa (0 psi).
Start the engine. Allow the oil pressure to increase to the cut-out pressure. Refer to Table 1 for the correct cut-out pressure.
After the brake accumulators have been charged and the cut-out pressure has been obtained, stop the engine.
Turn the key start switch to the ON position, but do not start the engine.
Illustration 3 g03341697
Monitoring System display
Apply the service brakes repeatedly, pausing for a second or two between each brake application. Count the number of brake applications.
Observe the pressure gauge as you apply the brakes. Refer to Table 1 for the deactuation pressure for the brake accumulator oil pressure sensor.ReferenceFor the correct operation of the brake accumulator oil pressure alert indicator, refer to Systems Operation, Troubleshooting,