How to tighten the spherical head

1. Hold the top platen and loosen the allen set screw located in the piston.
2. Remove the top head from the piston. Note: Caution should be exercised when removing the spherical head. It is HEAVY...take all precautions to AVOID dropping the head. It is very awkward to handle.
3. If the holding stem on the head is loose, tighten it as tight as possible.
4. Reinstall the head and set the allen screw so it is not completely tight.
5. Install a spare cylinder and run the machine up to 25,000 lbs.
6. Finish tightening the head with the pressure on the machine.

Note: Never operated the machine with the top head loose severe damage can result!!!