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.