AP Diving Ltd. RBV07 Swivel Inflator Range Maintenance Manual
Page 34 of 50
6.2 Replace all O-rings with new ones from the Service Kit
WARNING:
- Replace all O-rings: do NOT re-use old ones.
- ONLY use original parts from APD, to make sure the O-rings:
o
Are the exact size
o
Are of the correct material (especially important in a high oxygen content and
overpressure environment)
o
Are of the correct stiffness (degrees Shore).
- Make sure you use only oxygen-compatible grease.
- Also make sure you only use oxygen-clean and oxygen-compatible replacement parts.
All APD-supplied O-rings in the service kit are made from Nitrile and as such are oxygen
compatible. However, they still need to stay or be made oxygen-clean.
- Last but not least: avoid touching oxygen-clean parts after cleaning with your bare
hands. Human body sweat and grease are not oxygen-compatible. So use rubber gloves
(e.g. surgical) when re-assembling the RBV07 Swivel inflator.
- For photographic clarity no rubber gloves are worn on the photos in this manual.
6.3 How to lightly grease O-rings
When greasing O-rings, make sure NOT to use too much grease.
Especially O2 compatible grease has the potential to become stiffer over time, which may
cause a hardened clot of grease to become a source for leaking.
The best way to grease O-rings is using a simple “grease bag”.
A grease bag is a clean and clear plastic bag, into which you put a small amount of grease.
Optionally you can make two bags: one with O2 compatible grease, and one with normal
silicone grease. Make sure you label them properly to avoid mixing them up! Also put a date
on it, so you know how old your grease bag is. Don’t use them longer than a year.
A nice advantage of using a grease bag is that you use only a tiny amount of grease for
greasing many O-rings, so there is little waste.
We recommend that you use resealable bags, e.g. the ones with a plastic zipper, typically
used for airtight food storage. This allows you to zip up the bag after use, keeping the
contents clean for repeated use.
The simple steps are as follows:
- Take a plastic bag and deposit a SMALL amount of grease in it.
- Massage this grease all around the bag until it is evenly distributed over the inside
surface area.
- Take the O-rings to be greased out of their storage container, either using gloves or
using an O2-cleaned instrument like a dentist hook.