Step 1. Take the Diesel Guard apart. Step 2. Take the diesel cap off.
Step 3. Put the locking ring (1) over the filler neck. Make sure the wide end of the OD is facing up.
Step 4. Place the tapered ring (2) over the filler neck.
Step 5. Push it down so that approximately 5mm of the filler neck stands out.
Step 6. Insert the sieve section into the filler neck. Make sure that the slotted section faces down and the blank section is up.
Step 7. Place the body (3) into the sieve.
Step 8. Put the snap off bolt through the body and attach it to the locking ring.
Step 9. Follow step 8 for all 4 bolts.
Step 10. Finger tighten the bolts little by little on each one.
Step 11. Tighten with a 12mm spanner little by little one each until the heads snap off.
Step 12. Loop the wire cable around the filler neck and then crimp the ferrul so that the loop cannot come over the Diesel Guard.