Dismantle Spetton Traker Sport Handle

[Augusto Frigerio]

Hi everyone! this is my first post in this forum! And I am writing to ask for some help!
I have a 75cm Spetton Traker Sport speargun, the thing is last time I use it i rinsed it with fresh water, but not immediately afer taking out of the sea.
The thing is, with this lockdown I started to store my gear properly and I noticed a very tiny bit of rust in the trigger mechanism, so I decided to take it apart for cleaning.
Bottom line is I got stuck. I got to the point where no pin is in but I do not know hot to take out the trigger mechanism without using a lot of force, and I am afraid of breaking it because it seems to be aluminum. Can someone help me with this? Here are some pictures of it.

 

[popgun pete]

Put the handle in a bucket of reasonably warm water, not boiling, and leave it for quarter of an hour. That will dissolve any salt and slightly expand the handle. Remove the handle from the bucket and then try pulling the mechanism out. You can put a screwdriver blade into the sear box or you can use a spear tail as a pry bar. Once you get it to budge you can then pull it out by hand. Don't use excessive force once you see it moving. A squirt of WD40 may help once you have dried off the handle with a clean cloth.

 

[Augusto Frigerio]

Put the handle in a bucket of reasonably warm water, not boiling, and leave it for quarter of an hour. That will dissolve any salt and slightly expand the handle. Remove the handle from the bucket and then try pulling the mechanism out. You can put a screwdriver blade into the sear box or you can use a spear tail as a pry bar. Once you get it to budge you can then pull it out by hand. Don't use excessive force once you see it moving. A squirt of WD40 may help once you have dried off the handle with a clean cloth.

Thanks mate! One thing I forgot to mention is what should I do with the safety? It feels that it prevents me from taking out the trigger mechanism

 

[popgun pete]

If the safety cam rod goes through the mechanism cassette walls then you will have to remove it first. It must come apart as someone had to put it all together in the first place. Usually the control knob comes off and you push the control rod out through the other side, the cam that blocks the trigger from moving sits on a cut-out in the rod creating a D shape matching the hole in the actual cam. Circlips like a wire ring with a tiny gap in it are sometimes used which sit slightly proud in an annular groove to stop a shaft or knob moving sideways, so check for any thin metal parts circling control shaffts.