How to Replace Jaws on an NPU Drill Chuck (Video)

Lyndex-Nikken offers a nice video series of “Quick Tips,” and one that caught our eye is How to Replace Jaws on an NPU Drill Chuck. It’s a really straightforward tutorial, and here are the steps of the process:

1. Remove pull stud
2. Loosen draw screw halfway
3. Insert spacer and replace solid pull stud
4. Tighten pull stud until chuck is pressed off taper
5. Remove pull stud, spacer, draw bolt and chuck from taper portion
6. Remove O-ring from chuck and jaws to forward position
7. Place chuck in vise, gripping on lower portion – not the taper
8. Heat nose cone to burn off Loctite®
9. Use spanner wrench to remove nose cone and expose jaws
10. Once cooled, remove old jaws and replace with new jaws
11. Apply Loctite® (semi-perm) to threads and tighten down nose cone
12. Reverse above procedure for assembly

Lyndex-Nikken products are built to last. Follow this maintenance video to keep your tooling running longer and faster.

There are 20 Quick Tip videos in total. Check them out and see what interests you.