Tightening instructions for fire extinguishing system extinguishing agent lines - AR86.10-P-0114-01A

Screw on connection nut manually until a noticeable resistance be felt.

Fig 1: Screwing On Connection Nut Manually
Tighten connection nut 1 1/2 turns.
A marking line facilitates checking the number of turns.

Fig 2: Tightening Connection Nut
Loosen connection nut slightly to release tension on extinguishing agent line or extinguishing agent pressure hose.

Fig 3: Loosening Connection Nut Slightly To Releasing Tension On Extinguishing Agent Line
Tighten nut again until a noticeable resistance is felt clearly and tighten 1/4 turn for final assembly.
Hold with second wrench.

Fig 4: Tightening Nut
Completely disconnect connection to check deformation.
A clear raised bead must be visible on the inside of the tubing

Fig 5: Disconnecting Connection To Checking Deformation
When reinstalling the same fitting, again tighten connection nut until the stop can be clearly felt. For final installation, tighten the fitting another 1/4 turn
When reinstalling, lubricate parts.

Fig 6: Tightening Connection Nut