Sonex Oops Fittings Installation Instructions Bedienungsanleitung PDF herunterladen

Installing the Oops Fittings

(Rev A 05/03/2013, 2 Pages)

511 Aviation Road Oshkosh, WI 54902

Tel. (920)-231-8297 Fax. (920)-426-8333

www.sonexaircraft.com

sonex aircraft LLC

Recommended Tools and Materials

Review these instructions to determine specically what

additional parts you may need to complete your particular

installation:

qX-Acto and/or utility knife

qStep Drill, Approximately 1/8" to 7/8"

qAdjustable wrench (2)

qFlexible wire (safety wire, electrical wire, etc.)

q9/16" Dia. drill bit for installing a 1/8 NPT tting

q1" Dia. drill bit for installing the 3/8 NPT tting

q3/4" diameter washer

The Oops Fitting is a replacement / repair for fuel tank ttings

which have been broken lose in the tank. They are available in

two sizes so any tting in the tank can be replaced:

1/8 NPT - Part Number SNX-G01-20

3/8 NPT - Part Number SNX-G01-30

DANGER

Explosive Vapor!

Avoid serious injury or death.

Remove all fuel and explosive

vapor from the fuel tank before

performing this repair.

Removing the Existing Fitting

1. Purge all fuel and fumes from the fuel tank.

2. Use a step drill to drill the damaged tting from the tank.

If drilling the large 3/8 NPT tting do not drill larger than

7/8" with the step drill. If drilling a 1/8 NPT tting do not

drill deeper than the 9/16" step of the drill. Some of the

damaged tting will still remain in the tank after this step

is complete.

Oops Fitting Components

Internal Fitting

and O-Ring

Nut and External O-Ring

Wrench Flat

3. Remove the remainder of the damaged tting with a stan-

dard twist drill. Use a 9/16" diameter drill bit to remove

the remainder of a 1/8" NPT tting. Use a 1" diameter

drill bit to remove the remainder of a 3/8" NPT tting.

4. Use a sharp knife, ne le, and sandpaper as needed to

smooth the area around the entrance and exit of the hole

so the o-rings of the Oops tting have a smooth surface to

seal against.

Important: If replacing the 3/8 NPT tting, remove the

large ridge inside the tank where the old tting was.

The smoother and atter this area is the better the seal

will be between the Oops tting and the tank.

A step drill (left) is used to remove most of the existing tting

(right). Do not drill deeper than indicated in step 2 or the

hole may be too large for the Oops tting and a new fuel

tank will be required.

1 2

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