IDENTIFICATION OF PARTS
Plastic C-ring
O90-F Focus Gear
Focus Knob
Spare Rubber grips x 6
Preparation of the Product
1. After verifying that the sealing O-ring is in good condition, lightly coat it with the lubricant provided and
wipe away the excess.
2. Make sure the O-ring groove is free from any foreign material; the groove can be cleaned with the aid
of a microfiber cloth.
3. Carefully place the port O-ring into the groove, ensuring that it lays flat and inside the entire groove.
4. Inspect the O-ring again, make sure there is no foreign materials.
5. After installing the port, lift up the entire system and inspect where the housing back and port meet the
housing. There should be a thin, uniform gap with no extruded O-ring.
