BSF 55 trigger adjustment ??

[Oldandshaky]

Hello, I have a BSF 55 belonging to a friend of my son, its in need of some trigger adjustment..
My question is, will there be any surprises like springs flicking out or ball bearings rolling around if I remove the trigger unit to clean it and replace the return spring?

Thanks for looking Dave..

[I. J.]

No and again.

Seasons greetings.
Ian

[Oldandshaky]

Hi Ian, ok thanks for that.

I hope to get to your club in the new year all being well.. Dave...

[I. J.]

Hi Ian, ok thanks for that.

I hope to get to your club in the new year all being well.. Dave...

Your very welcome. Have you sent for details?

Please note: The indoor range is closed on Sun 10th Jan as a sign of respect.

ATB
Ian

[Oldandshaky]

Hi Ian, I have stripped the gun down a bit and found some things that don't seem right to me.
The cocking linkage appears to be bent and where it runs through a bracket mounted on the air cylinder, someone has packed it with some old plastic pieces as some sort of shims??
Pictures here..

http://www.pbase.com/davecthomson/image/120470022/large


http://www.pbase.com/davecthomson/image/120470030


http://www.pbase.com/davecthomson/image/120470051

Click on original to see in detail.

[Phil Russell]

Looks a bit odd. Could the link have broken and someone has attempted to mend it? The gold coloured stuff ... could it be braze? I do not think it should be bent.

Looking at the Chambers web page for a diagram .. the cocking link is shown straight.
Not much help I am afraid ...
Cheers, Phil

[Oldandshaky]

HI Phil,
the gold coloured stuff is a combo of old grease and melted plastic from the packing in the bracket. I haven't removed it because I want the lad who owns the gun to see it first..Dave..

[I. J.]

That linkage is deff. bent.

ATB
Ian

[Oldandshaky]

Hi Ian,
I was looking on Chambers site for a new cocking arm but they are out of stock. They do have some for the New model 55 but they look entirely different one piece with a separate shoe, so incompatible I suppose

What's puzzling me is why the packing? Also what would cause the cocking
arm to bend like that?
The next step is to remove the linkage and attempt to straighten it out. Can it be removed without taking the spring and piston out...Dave...

[Hsing-ee]

Hi Ian,
I was looking on Chambers site for a new cocking arm but they are out of stock. They do have some for the New model 55 but they look entirely different one piece with a separate shoe, so incompatible I suppose

What's puzzling me is why the packing? Also what would cause the cocking
arm to bend like that?
The next step is to remove the linkage and attempt to straighten it out. Can it be removed without taking the spring and piston out...Dave...

You will probably not be able to find a cocking lever, years since they were made. Although Manchester Air Guns just might have one.

It is a simple shape so one of the BBS engineers could probably make one up for you.

The bend is probably because of a loose breech bolt combined with an over-power spring.

[mallyally]

Hi Ian, I have stripped the gun down a bit and found some things that don't seem right to me.
The cocking linkage appears to be bent and where it runs through a bracket mounted on the air cylinder, someone has packed it with some old plastic pieces as some sort of shims??
Pictures here..

http://www.pbase.com/davecthomson/image/120470022/large


http://www.pbase.com/davecthomson/image/120470030


http://www.pbase.com/davecthomson/image/120470051

Click on original to see in detail.

could it be that someone has put a stock bolt in that was too long jamming
the link and causing it to bend
when the gun was cocked / if you like i will have a look at it for you but it will probably have to be after the christmas period

[Oldandshaky]

Thanks for all the replies.
The plastic mess has been removed now, it looks like that expanding foam stuff
The young lad who owns the gun came to look at it last night and its been decided to attempt to straighten the linkage out, but first we have to remove it so any tips and advise would be very welcome.

Mally, thanks for your kind offer, if things go awry I will be in touch

Once again Many thanks to all on this very helpful corner of the forum
Seasons Greetings to one and all Have a good one..Dave..

[I. J.]

Personally I would fully strip the rifle to see what other damage has been done. It may be beyond financial repair if the internals are similarly knackered.

The rifle are fairly straight forward to strip once youve learnt the 'BSF Secret' which is the scope rail (one screw) must be removed at the same time the end block is released - preferably in a spring compressor.

ATB
Ian

[mainspring]

I have a couple of new ones spare if you get stuck

[Oldandshaky]

I have a couple of new ones spare if you get stuck

Hi, thanks for looking you have a PM..
Happy Christmas..Dave..