Hog D2 first stage question

[Dhboner]

Hi,

A quick question...on the weekend I was setting up for a dive and when I attached my first stage and turned on opened the tank there was air leaking. I removed and re-attached the first stage and the same thing happened. On examination I noticed that there was a slight gap between the hand wheel and the part of the regulator that the o-ring sits in. I checked it carefully and it was loose so I finger tightened it which solved the problem. I noticed that it has a hex key surface so I was wondering if I should tighten this piece beyond finger tight with a wrench. I'm hoping to avoid bringing the reg in for service as my Hog dealer is pretty far to drive. Thanks

Bob​

 

[jacksatlanta]

PM Sent

 

[mathauck0814]

The din nut is a #7 (I believe) hex key that should technically be tightened with a torque wrench. But yes, if that's loose, you will get leaks.

 

[Bigd2722]

I had the same issue and just finger tightened it. Now I'm wondering

 

[mathauck0814]

Now I'm wondering

Wondering what? If it's finger tight, it'll come loose. Use the right tool.

 

[stairman]

My buddy runs into this frequently and has to tighten his often. Keep the allen wrench handy.

 

[redacted]

It is possible to loosen that connection by turning the 1st stage body while under pressure. The proper torque should minimize the chance of inadvertently loosening the retainer.

 

[Bigd2722]

Wondering what? If it's finger tight, it'll come loose. Use the right tool.

Wondering what the correct torque is

 

[cerich]

100 inch lbs will do the trick. This is not uncommon with all brands of DIN regs, as AWAP stated turning the first stage can "break" the seal, then it backs out and you can get a leak.

Wondering what the correct torque is

 

[Bigd2722]

thanx, it never ceases to amaze me at how much black magic info you are willing to share