365C Front Shovel 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" 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
Part Number	Description	Qty
5P-3277	Measuring Tape	1
	Stopwatch	1

Illustration 1	g00865263

1. Load the bucket.

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

3. Fully extend the stick cylinder.

4. Fully extend the bucket cylinder.

5. Raise the boom until the stick to bucket pin is the same height as the boom foot pin.

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

7. Stop the engine.

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

Table 2

Cylinder Drift (Loaded 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	12.0 mm ( 0.47 inch) or less	18.0 mm ( 0.71 inch) or less	30.0 mm ( 1.18 inch) or less
Bucket Cylinder	30.0 mm ( 1.18 inch) or less	45.0 mm ( 1.77 inch) or less	75.0 mm ( 2.95 inch) or less