325D Material Handler Hydraulic System Caterpillar

Note: The engine speed and/or the machine configuration that is used during this test can affect the results of this test. Refer to Testing and Adjusting, "Engine Performance - Test (Engine Speed)" for the engine speed that was used for this test. Refer to Testing and Adjusting, "Operational Checks" for the machine configurations that were used for this test.

Note: The relief valve pressure settings must be set to the relief valve pressure specification before performing this operational check. Refer to Testing and Adjusting, "Specifications".

Table 1

Required Tools
Description	Qty
Measuring Tape	1
Stopwatch	1

Illustration 1	g00924805

1. Position the machine on level ground. Refer to Illustration 1.

2. Fully extend the boom cylinders.

3. Position the stick parallel to the ground.

4. Measure each cylinder's length from cylinder pin to cylinder pin.

5. Stop the engine.

6. Leave the machine in this position for five minutes. Measure each cylinder's length from cylinder pin to cylinder pin for drift.

Table 2

Cylinder Drift (Empty Bucket)
Item	New	Rebuild	Service Limit
Boom Cylinder	6.0 mm (0.24 inch) or less	12.0 mm (0.47 inch) or less	24.0 mm (0.94 inch) or less
Stick Cylinder	10.0 mm (0.39 inch) or less	15.0 mm (0.59 inch) or less	25.0 mm (0.98 inch) or less