No-one seem to have a diagram on the repeater but I did find this on the web. see the link below
The Repeater itself is not woth much $10 if it is in great working condition. The Marksman Moving targer may be worth more. I found one on the net for $29. It all depends on who may want to buy it.
The G10 is another variation of the Marksman repeater pistol that has been around for years. It fires a rate around 250 FPS. In the UK one can be found at (see the link below)
The air pistol is so inexpensive it is not worth repairing. However you could search the web for "Air Gun Repair" and locate a shop near you to have it fixed.
Unfortunately this is a very inexpensive mass produced pistol, it cost less than $20 brand new. Marksman is owned by the Beeman air gun company. Finding parts is almost impossible because it is usually tossed out when broken. You can try contacting Beeman but the repairs may cost more than a new repeater. http://www.marksman.com/
200 Feet Per Second (FPS)
Brand new, they sell for under $25. Used they sell for around $10 - $15. This is one of the most inexpensive air guns made.
Beeman owns Marksman air gun company WE'VE MOVED!! Our new address is: 10652 Bloomfield Ave Santa Fe Springs, CA 90670 Ph: 562-968-5891 Fax: 562-968-5823
The Marksman Repeater is made so poorly that it is not worth repairing. In excellent condition it is worth $15. Broken it is worth nothing. A new model 1010 cost under $20 If you want to pay more than it is worth, look up "Air gun Repair" on the net and find someone near you to rebuild it. No-one seem to have a diagram on the repeater but I did find this on the web. See the attached link below Scroll down to the bottom of the page and you will find photos of how this guy put his back togather.
In the UK the 1010 Marksman is known as the SMK G10 or G2000 Repeater. It is an inexpensive spring pistol, but is exactly the same as the Marksman 1010 sold here in the States. It has a rated speed of 250 FPS. It shoots BB's, darts and single shot pellets. It is not a powerful or accurate air gun, but fun to shoot. See the link below for a shop in the UK.
go on the computer and scan the words 'marksman air pistol' ...............
I can only think of three oils to use on any airgun. Crosman pellgun oil, Gamo oil or RWS air gun oil. Never use anything else it can ruin the seals in the air gun.