SWITCH AS-ROCKER 1114785 - Caterpillar

Specification
Table 1
"Cylinder Drift - Check (Loaded Bucket)"
Item New Service Limit Actual
Boom Cylinder 4.5 mm (0.18 inch) or less 11.3 mm (0.44 inch) or less
Stick Cylinder 12.0 mm (0.47 inch) or less 30.0 mm (1.18 inch) or less
Bucket Cylinder Max 18.0 mm (0.71 inch) or less 45.0 mm (1.77 inch) or less
Table 2
Bucket Configuration Reference
Model Capacity Weight Load
DB1500HD 1.8 cubic meter (2.46 cubic yard) 1700 kg (3748 lb) 3400 kg (7496 lb) Introduction
The performance level of the cylinder, the cylinder seals, and the overload relief valves for the implements can be determined with the following procedure.Note: The machine configuration that is used during this test can affect the results of 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".Required Tools
Table 3
Required Tools
Description Qty
Measuring Tape 1
Stopwatch 1 Test Procedure
Position the machine on level ground.
Increase the hydraulic oil temperature to 55° 5°C (131° 9°F).
Load the bucket. Refer to Table 2 for the correct load weight of the bucket.
Illustration 1 g06249799
Fully extend the bucket cylinder. Slowly return joystick to neutral position. Refer to Illustration 1
Fully retract the stick cylinder. Refer to Illustration 1
Illustration 2 g06249808
Extend the stick cylinder rod 70 mm (2.8 inch) from the fully retracted position. Slowly return joystick to neutral position. Refer to Illustration 2
Illustration 3 g06249830
Position the boom until the stick to bucket pin is the same height as the boom foot pin. Slowly return joystick to neutral position. Refer to Illustration 3
Engage hydraulic lock.
Measure each cylinder length from cylinder pin to cylinder pin.
Stop the engine.
Leave the machine in this position for 3 minutes. Measure each cylinder length from cylinder pin to cylinder pin for drift.