TUBE-PLASTIC 4C4057 - Caterpillar

Illustration 1 g03630357
Tooling (A) 198-4240 Digital Pressure Indicator Gp
Table 3
Tool Item Qty Part Number Description
A 198-4240 Digital Pressure Indicator Gp
A1 1 198-4234 Digital Indicator
A2 2 198-4238(1) Pressure Sensor Gp 34,450 kPa (5,000 psi)
A3 2 198-4236 Adapter Cable As
(1) This sensor must be purchased separately. The sensor is not included in the 198-4240 Digital Pressure Indicator GpTest Preparation
Refer to Testing and Adjusting, "Machine Preparation for Troubleshooting".Refer to Testing and Adjusting, "System Pressure Release".
Illustration 2 g06081644
Steering Frame Lock in the LOCKED Position
Move steering frame lock to the LOCKED position.
Prepare the machine for testing by completing the procedure that is specified in the Service Manual module Testing and Adjusting, "Machine Preparation for Troubleshooting" for the machine that is being serviced.Test Procedure
Load sense pressure can be checked in the same way as implement discharge pressure. Checking the load sense pressure will provide an accurate reading of the pressure signal that is being sent to the implement pump. The implement discharge pressure should be equal to the load sense pressure plus the added margin pressure. Theoretically, adding the pump margin to the load sense pressure reading should yield