| 1. To open a cowl. |
| 2. To mark an arrangement of arms of loops concerning a cowl, having led round them, for example, a felt-tip pen. |
| 3. At a gas emphasis with a plastic tip to extend by means of a screw-driver the fixing clip on 4 mm (completely not to pull out!) and to remove a tip of a rod of a gas emphasis from a spherical finger. |
| 4. At a gas emphasis with a metal tip to take out a pin by means of flat-nose pliers and to remove a tip of a rod of a gas emphasis from a spherical finger. |
| 5. To turn off bolts of fastening of loops to a cowl from both parties. |
| 6. To remove a cowl. It is desirable to do it together, as a cowl rather heavy. |
| 7. To establish a cowl and to wrap fastening bolts a hand without tightening. |
| 8. To connect the lower fastenings of a gas emphasis. |
| 9. To expose a cowl on earlier made tags and finally to tighten fastening bolts. |
| 10. If the new cowl is established and tags before removal were not made, it is necessary to adjust the provision of a cowl. |
| 11. For this purpose before a final inhaling of bolts of fastening of loops to a cowl to cover a cowl and to establish it so that gaps between a cowl and wings were identical from both parties, and the gap between the lower panel of a front and back part of a cowl was uniform throughout. |
| 12. After that accurately to open a cowl and finally to tighten fastening bolts. |