PROCEDURE FOR CRANE LOAD TEST
 

1. Limit Switch Test (Unloaded)

 

- Upper limit: Lift the crane to max 75⁰, check the alarm and clinometers.

 

- Lower limit: Lower the crane to max 25⁰, check the alarm and clinometers.

 

- Horizontal limit: Turn the crane anti-clockwise (4m from ship's hull with incline of  25⁰, check the alarm and clinometers.

 

- Abruptly stop: Press "Stop" button while working, check the brake.

 

2. Load Test

 

 a. Calculation for test weight    

 

- Horizontal angle while loaded          25⁰     

- Safety working load                        25 tons

- Load test applied                           30 tons

 

b.   Testing procedure

 

- Lifting / Lower test weight: lifting and lower test weight at both sides of ship while crane at the Lower Limit, check the working length of hook.

 

- Lifting / Lower crane: lift the crane from Lower Limit to Upper Limit position, check the clinometers at max and min.

 

-  Turn the crane: turn the crane from right to left while crane at the Lower Limit and Upper Limit, check the clinometers at max and min.

 

The load test is considered acceptable if limit switch, clinometer are in good working condition. No damage or deformation of crane or wire rope found during testing process.