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 Post subject: Omer Cayman Mech Issue
PostPosted: 16 Jan 2010, 22:19 
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Sea Horse jockey
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Location: Greensborough
I have had this issue for the life of the gun, but only recently since using a couple of other guns have I realised how much of a pain in the neck it is. Every once in a while it works fine but most of the time when reloading the spear will not sit properly in the mech. The spear does not slide smoothly into the mech and then once locked it flexes the spear (there is a considerable gap between the rail and shaft in the centre of the gun). The only way I have found to fix it is to turn the gun upside down, then flick the line release and trigger a few times. The spear will then slide smoothly into the mech but the sear will not engage, remove, pull the trigger again and usually works properly, if not, repeat until it does...

This obviously makes the reloading process an absolute pain, I'm hoping someone with a bit of knowledge about these mechs might be able to suggest what the source of the problem may be.

Cheers, Dave

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 Post subject: Re: Omer Cayman Mech Issue
PostPosted: 17 Jan 2010, 00:34 
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Sailor’s hats suit Gigantor

Joined: 03 Nov 2005, 01:36
Posts: 475
Might be stating the obvious but could you have the line under the spear when your reloading?


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 Post subject: Re: Omer Cayman Mech Issue
PostPosted: 17 Jan 2010, 08:09 
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Buff Mer-man of the South

Joined: 06 Dec 2008, 09:24
Posts: 236
I have a similar problem with my hf and hf2 it doesn't seem to go in properly a lot of the time and I always give the spear a pull to make sure its in properly in before loading the rubber.Admit it's a pain but still bloody nice guns.


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 Post subject: Re: Omer Cayman Mech Issue
PostPosted: 17 Jan 2010, 11:33 
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Sea Horse jockey
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Joined: 21 Jan 2009, 20:44
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Location: Greensborough
I have checked that line is not fouling the mech and sitting parallel to the spear, I have used several different diameters and materials, also taking careful note of where the line is sitting in the mech. At this stage I do not think that it is the shooting line.

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 Post subject: Re: Omer Cayman Mech Issue
PostPosted: 17 Jan 2010, 12:35 
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Whiting wakka

Joined: 18 Jun 2009, 18:16
Posts: 43
I have the same problem with my Omer Cayman, but only once in every 20 reload or so. I usually press the trigger once and the spear clicks into place. Sounds like the problem is more pronounced on your gun, maybe get someone to have a closer look at the mech? It shouldn't be like that as far as I know.


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 Post subject: Re: Omer Cayman Mech Issue
PostPosted: 17 Jan 2010, 14:10 
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Sea Horse jockey
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Joined: 03 Aug 2006, 08:55
Posts: 278
Location: Melbourne
Claymore
sorry to hear about your bad experience with the Omer Cayman ... they are very good guns and I am a big supporter of Omer as I have used their quality equipment for many years with satisfaction.
However, I have a Cayman HF and very very seldom I experience a similar problem
It certainly could be a small glitch in the Omer mechanism, but it could just as surely be a matter of maintenance if it is as bad as you say
If you care about the gun (which by the way is a great gun) I would agree with Rasmus and have it checked by someone like Legendary. It's prob just a matter of good lubrication and washing it carefully after each use.
I wouldn't suggest opening up the mech yourself which could hinder some safety features or the functioning of it

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 Post subject: Re: Omer Cayman Mech Issue
PostPosted: 17 Jan 2010, 18:54 
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Sea Horse jockey
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Joined: 21 Jan 2009, 20:44
Posts: 268
Location: Greensborough
I'm not too keen on pulling the mech apart myself, I have heard stories about the omer mech promptly ejecting all mech components everywhere as soon as the spring is released.

Have had a bit bit of a play and I think I have figured out what it is. The line release mechanism seems to slip forward of the spear toggle (not sure of the correct name, the thing that pushes up against the spear to keep the line release in place), which ends up making the 'bottom' of the toggle stick up, apparently fouling the spear. When you flip it upside down, it falls back into place (flicking the trigger and line release apparently unnecessary).

This suggests that perhaps the line release mech is loose and not sitting tight against the toggle, the question then, can it easilly be tightened?

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 Post subject: Re: Omer Cayman Mech Issue
PostPosted: 17 Jan 2010, 19:41 
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Buff Mer-man of the South

Joined: 06 Dec 2008, 09:24
Posts: 236
Pretty much done all those things on my hf and hf2 except pulling the trigger mech apart tried differeny size dyneema as well as mono,also make sure line is sitting right. Really have to pay attention when putting spear back in and occasionly have to pull the trigger for the spear to go in correctly,but I have also had to pull the trigger on a beuchat gun for the spear to go in correctly.In saying this I love using the omer and beuchat guns.


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 Post subject: Re: Omer Cayman Mech Issue
PostPosted: 18 Jan 2010, 08:25 
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Sea Horse jockey
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Joined: 03 Aug 2006, 08:55
Posts: 278
Location: Melbourne
in order to avoid any complication generated by the mono or dyneema when inserting the shaft in the hold mech, I have connected the 1.6 mono line to the shaft on the second hole ... the one further away from the shaft end entering the hold mech.
this is very commonly done in europe and does not require any crimping but a very simple knot instead
it's probably the simplest connection between line and shaft. This should further minimise any future problems

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 Post subject: Re: Omer Cayman Mech Issue
PostPosted: 18 Jan 2010, 12:17 
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Buff Mer-man of the South

Joined: 06 Dec 2008, 09:24
Posts: 236
will give it a go this week sounds a good idea.


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 Post subject: Re: Omer Cayman Mech Issue
PostPosted: 18 Jan 2010, 18:38 
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Sea Horse jockey
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Location: Melbourne
a few photos just to clarify


Attachments:
DSC06393.JPG
DSC06393.JPG [ 149.07 KiB | Viewed 448 times ]
DSC06392.JPG
DSC06392.JPG [ 154.56 KiB | Viewed 448 times ]

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 Post subject: Re: Omer Cayman Mech Issue
PostPosted: 18 Jan 2010, 18:56 
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Whiting wakka

Joined: 18 Jun 2009, 18:16
Posts: 43
I believe this setup would only work with an open muzzle right? As the knot would rip open the muzzle on the closed muzzle Caymans.


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 Post subject: Re: Omer Cayman Mech Issue
PostPosted: 18 Jan 2010, 19:14 
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Sea Horse jockey
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Joined: 03 Aug 2006, 08:55
Posts: 278
Location: Melbourne
:) :) yes ... we did speak about this Rasmus ... has to be open muzzle
the combination is a much quieter release without any detriment to the line of exit of the shaft

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 Post subject: Re: Omer Cayman Mech Issue
PostPosted: 10 Mar 2010, 08:14 
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Mitilini resident

Joined: 07 Jan 2010, 07:01
Posts: 8
The Omer "Cayman" trigger mechanism needs periodic lubrication with silicone oil, it is stated in the handbook for the gun. The handbook diagrams also show how the mechanism works, there is a pivoting cam with a curved slot inside it that controls the line release arm action, that small cam is what is giving intermittent problems as it has to both rotate and slide correctly on the pin that it is mounted on (see the numbered page 5 of the attached "Cayman" handbook pdf file).


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Omer cayman LE manual.pdf [259.78 KiB]
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 Post subject: Re: Omer Cayman Mech Issue
PostPosted: 11 Mar 2010, 06:58 
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Sailor’s hats suit Gigantor

Joined: 14 Mar 2009, 15:08
Posts: 527
Well, I am not a fan of these guns at all. So my suggestion is try another gun! :P

Ligure, I don't understand your setup there ... Don't you find it really annoying to pull the fish back onto the spear once it has gone onto the line? I had it like that for a while but found it frustrating. I run the line through the second hole but keep the knot in the first one. Maybe this does not work for your gun?

That knot is pretty big! I usually do just one, really tighten it, by standing on the spear and pulling until the line no longer slips. I then use a lighter to melt the end very gently (want to just melt it, not dry and crack it).

My argument = less big knot so less friction (it may be minimal, but if the knot is that big I am sure there is some) + its easier to get the fish back onto the spear if you use two holes.

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