DOWN HOLES UP HOLES AND PRODUCTION BLAST HOOK UPS

8. Check the hookup. - Starting at the front ring check:
- the correct delay in each hole
- all signal tubes hooked in
- no slack or looped tube connection
- all tubes run at right angles, straight from collar to cord
- all detonating cord turns are greater than 90 degrees
- **Treggies are used when wrapped or tied around pins.

Спасибо!