15KN Rescue Boat Manual Release Hook :
1.Move the hook to the hooking position when the fork handle is at unhooking position.
2.Move the fork handle down to the hook protector position by a flexible push rod then insert the protector into the protecting hole.
3.turn the torsion spring on the hook,put down the lifting steel cord or the ring.Keep the torsion spring in loose status to prevent the cord dropping then start lifting a heavy object.
4.To carry a unhooking operation,take the protector out of the protccting hole then use the flexible push rod move the fork handle upward to the unhooking position the heavy object can drop from the hook freely.
5.Repeat the above hooking and unhooking operation.The hook can work normally when using it.
Repair and maintenance:
1.If find any part that is worn and torn or deformed,it should be replaced.
2.The active position should be lubricated regularly with grease.
3.The hook surface should be cleaned with sewing machine oil per two months and smear with clean sewing machine oil after cleaning to prolong the serice life.
| Model || DY-15 |
| Specification || 15KN |
| Release form || Manual release |
| Safe working load || 15KN |
| Test specification || 15KN |
| Test load for 2.5 times || 37.5KN |
| Test load for 6 times || 90KN |
| On the pitch || 32MM |
| Under the aperture || 25MM |