Instructions

Publication: INFICON AB - niml69e1-b (1111) All information can be modified without prior5notice

INJECTION FIX KITThe gas Injection Fix Kit is designed primarily for the aerospace industry. The
main application is back tracing of fuelentry point of fuel system leaks.
The exit point of a leak is typically foundthrough visual inspection. The Injection
Fix Kit is attached over the exit point,
allowed to set for a few minutes andthen gas is injected. The entry point isthen located inside the fuel compartment using the Extrima Hydrogen LeakDetector.

Locating Procedure overview:• Clean exit area
• Apply plastic tube
• Wait for Injection Fix Kit
to adhere• Purge gas line
• lnject gas• Wait for gas to clear pathto entry point• Locate leak with Extrima
Hydrogen Leak Detector
IMPORTANT: See details on next page!

INFICON AB, Box 76, SE-581 02 Linköping, Sweden
Phone: +46 (0) 13 35 59 00 Fax: +46 (0) 13 35 59 01
www.inficon.com E-mail: reach.sweden@inficon.com

1. Application ofplastic tube
1.1 Carefully clean the area aroundthe exit point with isopropyl alcoholor similar approved solvent.
1.2 Cut one end of the plastic tube(A) to make it fit against the exit
point surface.

1.5 Centre the plastic tube over theexit point (D). It is very importantthat there are no openings between
the tube and the surface.

DB

1.4 Cut off a piece of Sealant Tape(C) and fix it around the open end of
the tube, as a seal.

C

2.3 Connect a suitable length of supply hose to the output of the regulator.
Use 4 mm or 5/32” outer diameter
pneumatic tubing (PA or PUR).
2.4 Connect the white push-in fitting
delivered with the Injection Fix Kit
to the other end of the supply hose.
Leave the white push-in fitting on thesupply hose after you have finishedthe job.

1.3 Press in an Injection Plug (B) in
the other end of the tube.

A

2.2 Fit the pressure regulator to thebottle. See manufacturer’s instructions for details. A two stage regulator
with 0–1 bar / 0–15 psi output pressure is recommended.

1.6 Leave the Injection Fix Kit to set
for at least 10 minutes before purging
and injecting gas. Application temperature should be within 0–60°C/ 32–140°F. Ideal temperature is
15–50°C /59–122°F. Heat surface
before application if necessary.

2. Setting up gas
supply equipment
2.1 Before fitting the regulator to thegas bottle, make sure that the bottle
is protected and cannot fall. Do nottransport the gas bottle with regulator
fitted!

3.2 Open the main valve on the gasbottle.
3.3 Grab the open end of the supply
hose and increase the output pressure to create a small flow throughthe hose.

3.8 Check that the Injection Fix Kit
is still fixed and does not leak. If so,reduce pressure and press it back inplace again.
3.9 Wait for gas to clear path to entry
point.

3.4 Purge the hose for a couple ofseconds.

3.10 Locate leak with Extrima Hydrogen Leak Detector.

3.5 Cover the open end with yourthumb and turn regulator output pressure down to stop flow.

• IMPORTANT! Check that the pressure is not increasing with time. Thisis common for single stage regulators
in low or no flow applications. If
this is the case you can handle it bycreating a small leak in the regulator
end of the hose.

3.6 Immediately connect hose (E) toInjection Fix Kit.

3. Injecting gas
4. Removal ofInjection Fix Kit
after test

IMPORTANT!
You must purge the supply hose
before connecting it to the Injection
Fix Kit. Follow the instructions below
carefully every time you connect.
3.1 Back off the regulator to zero
output pressure.

E
3.7 Increase output pressure slowly
to desired pressure (max 0.5 bar /7.2 psi).

4.1 The adhesion of the Sealant Tapewill increase with time over the firstday or two. Do not leave the Injection
Fix Kit on longer than necessary.