H0014 Cylinder Repair

Procedure to repair a cylinder if you do not have access to a workshop with the necessary tools

Before you start, you must have with you :

1. 2 full cylindrical bars of 4 mètres - part A
2. 2 hoses B able to slide in the full bar A
3. some rags
4. One full seal kit - it is possible that you might damage some seals during this procedure.
5. an acetylene blowtorch

Procedure

1) Disconnect the cylinder from the crane to bring it to the workshop.

2) Take out the valve situated at the inferior base of the cylinder.

3) Empty completely the cylinder of its oil.

4) Weld a cylindrical bar A on part C

5) Block the cylinder by blocking part E for example.

6) Turn the welded bar A and B anti-clock wise.

7) To help unblock it, hit with a hammer around the cylinder (F) while someone else tries to unscrew the part C.

8) If the part C is completely rusted and that you can't unblock it with a hammer, (7), you must heat up the surface around the cylinder while someone else tries to unscrew the part C.

9) Now that the part C is unscrewed, take out the whole chrome tube D as well as the piston G of the cylinder.

10) Weld the second bar H on the piston G.

11) Unscrew the piston G by turning it anti-clock wise.

12) You can now slide the J head by the bottom of the chrome tube D.

13) Change the seals of the J head.

14) Put back J head around the chrome tube D.

15) Put back piston G with the new seal.

16) Unweld the cylindrical bar H and grind down the bottom of the piston G so that it's completely smooth.

17) Put back part C in place.

18) Unweld the cylindrical bar A.

19) Grind down part C to remove any welding trace.

20) Paint again part C to avoid any possible rusting.

21) Put back the valve at the bottom of the cylinder.

22) Put back the cylinder in place on the crane.