VALVE GP-RELIEF 3830811 - Caterpillar

Required Tools
Illustration 1 g03142124
Table 1
Required Tools
Tool Item Qty Part
Number Description
C 1 317-7484(1) Communication Adapter Gp
C1 1 370-4617 Cable As (USB PC Communication)
C2 1 317-7485 Communication Adapter III
C3 1 327-8981 Cable As (Data Link)
C4 1 317-7492 Cable As Wireless Radio
C5 1 JERD2129 Caterpillar Electronic Technician (Cat ET)
(1) Cat Electronic Technician (ET) and Software CD, NETG5057 are required when using the communication adapter.Implement ECM Tests
The following Tests can be performed to the Implement ECM:
Cylinder End Line Relief Pressure Test - A cylinder line relief pressure check is a test to check what the maximum pressure setting for a particular line relief valve is set at. Without this service test, the technician would not have a way to control to the correct pump displacement. This information is then used as a means of checking a cylinder circuit's relief setting and calculating what adjustments to make.
Implement Lift Time Check Test - A lift time check is a test to see how much time it takes a lift linkage to be raised from the full lower position to the full raise position. The test checks time by controlling one or more implement pumps, monitoring lift linkage position, and recording the lift time. This information is then used to point to issues with the implement valves, implement pumps or to issues with the flow sharing system.
Cylinder Drift Checks Test - A cylinder drift check is a test to see how much a cylinder moves over a specified time with the engine at low idle and no implement command. Large cylinder drifts generally point to a problem with the hydraulic system and can be used to diagnose faulty valves and seals. This information provides a convenient means of checking cylinder drift which can be used to diagnose problems related to valve leakage and seal leakage.
Implement Main Relief Test - A implement main relief test is used to measure a single implement main relief pressure setting using a variable displacement pump to control flow and a pressure sensor to monitor relief pressure. This test provides a means of checking an implement main relief setting using a machine's electronic sensors and speeds troubleshooting time by providing the adjustment needed to set the relief pressure setting of the valve. ET Setup
To access the test procedures for the Implement ECM, establish the connections of the Cat ET to the machine. Navigate to the test screen by clicking "Service" on the tool bar and then clicking "Tests". Click on the test that is needed.Once the specific calibration is selected, the Cat ET will guide you through the test procedure.The Cat ET will list initial machine conditions that must be satisfied before the ECM will allow the test procedure to continue. Follow the specific instructions on the display in order to complete the test procedure.Test Procedure
Connect Caterpillar ET to the machine. The ET connector is located on the control panel on the right side of the cab.
Turn the engine start switch to the ON