ODEX Assembly & Disassembly

DTH Eccentric casing drilling system or called Odex by Atlas copco and TUBEX by Sandvik Assembly & Dissassembly

Assembly:

1. Coate the pilot pin thread with thread grease.

2. Thread the pilot bit into the guide device by hand.

3. Insert a lock pin into one of the holes for the locking system. Make sure the lock pin is in bottom position of hole.

4. Hammer spring pin into position. Use suitable size of mandrel to prevent damages on guide device when lock pin get near the edge of the guide device.

5. Seat the spring pin against the lock pin.

6. Load bearing balls into the hole without lock pin. Use the mandrel to guide the bearing balls into the groove. Fill groove with no of bearing balls.

7. Load the last lock pin into hole.

8. Hammer spring pin into position.

9. Before start to drill, tighten up the pilot thread by using a suitable pilot bit wrench.

Disassembly:

1. Open up the pilot bit thread by using a suitable pilot bit wrench.

2. Remove all spring- and lock pins by using a hammer and suitable mandrel.

3. The bearing balls will then easily be guided out of the groove, by using a nylon strap or flexible steel wire.

4. Unthread the pilot bit.

5. Free the reamer from the pilot bit.