Logun airguns are made in Willenhall, West Midlands UK and imported by "Pyramyd Air" and "Straight Shooters Precision Airguns" in the USA. You could start there or do a search for Airgun repair on the web and locate someone to repair it for you.
you can start by searching the web for "Airgun Repair' or see the link below.
It was made by Crosman airgun co. Do a search on the web for Airgun repair and pick a location near you that repairs airguns.
Logan
to many deaths from the use of them
You can try contacting daisy customer service directly OR go online and do a search for "Airgun repair" or "Daisy Airgun repair" and locate someone that can fix it for you. See the link below
Do a web search for "Airgun repair' there are several places that repair airguns.
Your best bet is to go online and do a search for "Airgun Repair" and locate a shop near you that repairs older airguns. there are several that do this type of work as a living.
Only if the airgun has a scope rail designed into the gun. You will also need an airgun scope not a firearms scope.
Mahely is a previous trademark Giachetti Gonzales & Cia in Buenos Aires. The rifle was not regularly exported and you may have trouble locating parts on your own. I suggest you do a search on the web for "Airgun Repair" and locate someone near you to repair the rifle.
You can try JG Airguns, they have a few parts. You can also place a "wanted" ad on an airgun forum. LG 55 parts are scarce, but still around. Another idea is to buy a "beater" LG55 or a parts gun for the parts you need.
It depends on the Make and Model of the rifle. If it's a Crosman you can find drawings on their web page (see the link below)However I suggeat that you locate a airgun repair station on the web. Look under Air Gun or Airgun repair to find someone close to you. If you are handy with airguns you might be able to replace the o-rings or seals on the airgun yourself but I suggest that you give it to a repair shop and pay them to do it.
The highest velocity of an airgun is that of Evanix AR6 pistol which is 1000 fps.