They are perfectly suitable for their intended job under normal use, but they may not last long if the gun is abused. A drop of the oil on pivot points and O-ring seals will keep things working smoothly. Share. Always wipe external metal surfaces with oil or Sheath before putting your gun away. Introduction: This guide is designed to help the beginner and intermediate airgun enthusiast to be able to completely disassemble the Crosman 1077 and gain a greater understanding its â¦ I make it a practice to run a dry patch down the bore of my CO2 guns after they reach ambient temperature just in case moisture may be present. Digital camera. Note: Crosman has sometimes placed a washer behind the spring and often leaves the o-ring off the detent plunger. Crosman 1077 1077W RepeatAir AirSource disassembly instructions and guide with tools, hardware and fasteners. A drop of Pellgun Oil on the end of a CO2 cylinder is sufficient to lubricate the seals that engage the neck of the cylinder. 4mm Allen key/Hex wrench (Optional). Don't expect there to a screw in every hole, Crosman has been known to sometimes leave out one or two. The clear plastic bag will stop any potential flying springs from getting lost. Medium sized Philips screwdriver. Step 10D: Disassembling the Co2 Valve (Internals, cont.) CROSMAN CORPORATION RT 5 & 20 EAST BLOOMFIELD, NY 14443 Phone: 1-800-724-7486 Parts Order Fax: 585-657-5405 1077 & 1077W RepeatAir® CO 2 Rifle . If the airgun has a stock made of plastic, use a damp cloth to wipe away dirt and salts from sweaty hands. Crosman Pellgun OilÂ® is the proper lubricant for the job. Crosman 1077 Owners Site > Reassembling a 1077 (first time, need help) Share. The barrel is held in place by a locking mechanism that can be damaged if the barrel is slammed upward. This is one of the more advance steps in this Disassembly Guide. In humid conditions, this can even cause moisture to condense on these parts. After a pellet is inserted, the barrel is pushed back to its original position. The 1077 was used to trade for his Crosman Break Barrel .177 air rifle. When I got it home, I found that it didnât work properly. 3. VALVE ASSEMBLY - OEM PART. Crosman 1077 phase 2 (1998-2001) seal kit, with step by step directions. How disappointing it would be to think that you bought and are changing the valve when you actually have the plug assembly! If you are like me, you may actually enjoy the extra time spent maintaining such a loyal friend. 2. If your Crosman airgun was manufactured after July of 1975, the first three or four digits of the serial number indicate the month and year the gun was built. Be careful not to let the housing come apart whilst sliding it into the bag. In the HAM teamâs opinion, the wood stock looks much better than the black synthetic version. 4.5 135 reviews * Crosman .22-cal. Never disassemble a gun that is loaded and/or still has Co2 in it. If you are not familiar with valves or not very good with lots of little bits and pieces I advise you not to do this without direct advice from someone who knows more about the subject. Crosman. 3. Required Tools: Second, the information has been prepared by experts who are extremely knowledgeable about your airgun and how it functions. Also, use a steady, even pumping motion rather than spasmodic jerks. heavyhanded. The part numbers referenced in this article are from the Crosman 1077 parts table of Chambers Gun Makers. To remove the detent use a small flat-bladed screwdriver between the detent body and the valve body (there is a small ridge there) and wiggle it off. To do this you will need to have a Snap-ring/Circlip plier set with you to be able to remove the c-clip (#1077-051) that retains all the valve pieces inside the body. Now that you have the exterior valve parts removed, you can start disassembling the inners of the valve (#1077A015). If they do not fall out on their own, pull the bushing out by hand and (gently) remove the o-ring with a toothpick or small hooked pick. Hereâs what your trigger pack looks like once you have it out of the rifle. We've been supplying customers with hard to find parts since 1950. It's a 12-shot repeater that features a large rapid-change magazine, an integral scope-mount rail and fine accuracy - all for a terrific price. Step 4B: Separating the Action/Receiver housing To separate the valve from the tube gently twist the valve from the pipe and then the same with the pipe from the Co2 tube. Shop available Crosman parts from Numrich Gun Parts Corporation today! Step 4A: Cover A drop of Pellgun Oil on the end of a CO2 cylinder is sufficient to lubricate the seals that engage the neck of the cylinder. Note: Clip disassembly is not a requirement unless it requires repair. The detent body (#106A010) houses the detent assembly (#106B036 and #106A046) which is a plunger with an o-ring and spring. You will not need to remove the rings. Ships from and sold by Amazon.com. It can fire as fast as you can quickly pull the trigger. 2. Step 10A: Separating the Valve Body (Feed Pipe) Step 9: Removing the Hammer Latch, Pivot, Latch Spring and Safety These will be simple to re-install later if you refer to the image below this paragraph, so just let them come out into a small tray where they won't get lost. Air Rifle Pew Pew Pistols Rifles Airsoft Track Lighting Weapons Diy And Crafts Projects To Try. We do not display every part online. Do not slam the barrel upward with a great force. Share with: Link: Copy link. If the stock is made of wood, wiping it with a piece of cloth that has one or two drops of oil applied will help keep the wood looking good. The note that came back with the rifle after it was fixed said, âToo much oil.â The excess oil had clogged the valve assembly. 5. As working on the Crosman 760 is easier than the 375, Iâll discuss it first. If you do, it is possible to twist the linkage so that it does not operate smoothly without rubbing on the sides of the channel. China marker/Grease Pencil used when disassembling the valve. Note: The 1077, 1077W and 1077AS all disassemble exactly the same way. Now that you have any accessories removed, you will need to remove the stock (#1077-020) from the rifle, To do this you will need to take the magazine & clip assembly (#1077-005) out of the rifle, then remove the band screw (#1077-042) and the 2 stock screws (#1077-041) located on the under side of the rifle using the Philips screwdriver. A popular manufacturer of airguns, airsoft guns, bows, and crossbows. Do not allow any gun cleaning solvent to enter the pump mechanism or cylinder compartment of an air or CO2 gun. Step 7: Removing the Trigger Assembly and Trigger Spring Step 10C: Disassembling the Co2 Valve (Internals) The synthetic stock is durable, will stand up to decades of use and features a â¦ Crosman Pellgun Oil® is the proper lubricant for the job. 2. that small shaft where it mounts the plastics break. Step 3: Disassembly of the Magazine Housing I use no solvents on airgun bores because of the danger of the solvent getting into the valves. Then pull the Barrel shroud away from the barrel (#1077-006) and the rest of the receiver. Preparations: 3. The Crosman 1077 air rifle is a traditional, sporter design that has a distinctive look compared to the numerous, tactical âblack riflesâ that are so common nowadays. This again is another easily done step, Take the hammer latch (#1077A044) out first being careful not to move the small 'V' shaped spring (#1077-055), Now take the latch pivot pin (#1077-056) out at the same time as the 'V' shaped spring, Now that this is done just take the safety slide lever (#1077-040) out by holding the housing (#1077-021/#1077-022) with your hand and pull the safety out straight with your opposing hand, Simple! Now that you have the housing (#1077-021/#1077-022) open it is a good idea to get the barrel shroud (#1077-010) out of the way. The Crosman 1077 was the airgun of choice for the 2001 Bikathlon Event at the Boy Scout Jamboree. Before you start taking out any screws make sure that you take the 12-shot rotary magazine clip (#1077-001) out first. Do not force any button or lever that doesnât move as it should. Model Number 1077 Name / Description RepeatAIR. First Varient Course Thread on Piercing Knob. The valve seats are usually made of some sort of plastic or rubbery material that can be damaged by cleaning solvents. Post Nov 18, 2013 #1 2013-11-18T21:05. Start by holding the barrel clamp (#1077-007) and the end of the barrel shroud. If you are unclear about any of the parts that I am describing just look them up here as I will add a part reference number to disassembly step of the rifle that I describe. Next, flip the rifle over to it's right hand side and again use the flat-bladed screwdriver to remove all the Screws (#2-041/#1077-032). The 1077 is lightweight and its suitable rifle for whole team or family. Step 4: Opening the Action/Receiver Housing 2. heavyhanded. Crosman's exclusive semi-automatic rifle with a 12-shot rotary clip keeps you in the action longer, while the Co2 makes shooting fast, fun and a breeze! If you do not, you may damage the seals and shorten the life of your airgun. Start by turning the housing (#1077-021/#1077-022) over to it's left hand side where there is only one Screw hole near the barrel shroud receiver. Clear ~A4 size or 24"x36" plastic bag. When a CO2 gun is fired rapidly, the expanding gas cools the surrounding metal parts and the inside of the barrel. I am sure that some exuberant owner had thought that he should oil the gun after every few shots, but generally a couple of drops of oil after 200-500 shots is more realistic. The pellet clip can be liberated from the magazine by sliding the pin forward and taking it out. You will need to get any scopes, sights or other add-on parts out of the way if attached. Step 1: Removing Accessories (if applicable) Treat you airgun as the precision instrument that it is. First use the flat-headed screwdriver to unhook the hammer spring (#106035) from the housing (#1077-021/#1077-022). The 1077 is â¦ With a little maintenance, most airguns will last for a long time. Be careful! Because airguns operate with a blast of air, most small particles of residue are blown out of the barrel as the airgun is fired. Crosman. After removing the stock it will be time to start dismantling the action/receiver housing (#1077-021/#1077-022), This will be one of the more difficult parts of the disassembly so I will split it up into multiple steps. NEW Crosman 1077 Rifle COMPLETE CO2. Stevie's 1077W with Simmons 4x32 8-Point Scope, unspecified Silencer and Bipod. Step 5: Removing the Barrel shroud and Foresight To remove the front sight (#766B102) from the barrel shroud use a long (0.5m/18" or longer) dowel and slide it into the barrel shroud, hold the shroud with the muzzle facing upwards (away from your face) and tap the dowel firmly against the floor and the sight should come out. For example if the first three or four digits of the serial number were 1179 or N79 then your gun was manufactured in November of 1979. 5. Owner's Manuals and Parts Diagrams Owner's Manuals and Parts Diagrams. Step 10B: Disassembling the Co2 Valve (Detent)The next step is to remove the forward nose/detent that moves to allow clips and magazines to be inserted and removed while maintaining a reasonably sealed Co2 flow to the pellet. Enjoy round after round of the latest news, campaigns, videos and first release gear-drops from Crosman. Crosman 0413 Speedloader 12-Shot .177-Caliber Pellet Clips For Crosman 1077 Series And WildFire Air Rifles (3-Count) 4.6 out of 5 stars 969 $4.95 - $15.54 Once it is open and hopefully hasn't exploded everywhere, remember to take a digital photo of it or memorise it before you take any of the small parts out. Dropping or careless mishandling is a common cause of damage to airguns. Next, use your Flat-headed screwdriver to remove the two frame screws (#2-041) on the left hand side and carefully ease the magazine halves (#1077-004, #1077-005) apart. Introduction:This guide is designed to help the beginner and intermediate airgun enthusiast to be able to completely disassemble the Crosman 1077 and gain a greater understanding its mechanical workings and components. To do this take the 4mm Allen key/Hex wrench (Scopes usually use 4mm Allen bolts, but not always) loosen the Allen bolts on the scope ring clamps. Air Home View Topic Help Reassembly Of 1077 Crosman 1077 Co2 Part 2 Air Blog Pyramyd Report Crosman 1077 Pcp Airs S Forum ... 1077 diagram spare parts gmac custom 1077 crosman air spares chambers makers crosman 1077 parts diagram and disassembly instructions with product schematics for crosman 1077 air pyramyd. Break action (break barrel) air rifles operate by pulling the barrel downward to cock the rifle. Step 6: Removing the Co2 Tube, Valve and Valve Pipe Now take the hammer pivot pin (#766-044) out from the Hammer (#1077-030) and put it somewhere safe and then lift the hammer out of the housing. Saved by James Gifford. Share with: ... i've had the same problem. CO2, one powerlet, .177 cal., pellet repeater w/ 12 shot clip. However, certain airguns have barrel sleeves and pump mechanisms that are made of metal that will rust. However, every airgun deserves a good case to protect it from bumps and the elements. Many airgun parts are made of some sort of durable composite material that is virtually impervious to moisture. There are several commercial rust preventatives, and I have found Birchwood Caseyâs SheathÂ® to work very well. I have a beautiful air rifle that looked almost new when I bought it. Crosman`s exclusive semi automatic rifle has 12 shot rotary clip that keeps you in the action longer than usual, while CO2 makes shooting fast, accurate and fun! The Crosman 1077 is easy enough to load pellets and to install the CO2 cartridge when it runs out. Allowing it to fall or bounce around in a vehicle may knock things out of alignment. Over the years I have witnessed the abuse of airguns by some shooters, but they just kept on functioning. Just place a few drops of oil on a small piece of cloth and rub the metal surfaces thoroughly. The Crosman 760 is one of the industryâs great air-rifle success stories. Crosman .22-Cal Steel Breech Kit, Fits 2240, 2250, 2260, 2289 & 1322 Air Guns. Accessories, pellets/BBs for .177" (4.5mm) Crosman 1077 Air Rifle Airgun. b) Make sure you have all the Required Tools listed above or equivalents before you start. Step 10: Disassembling the Co2 Valve Moreover, most airguns are remarkably durable. Make your 1077 run efficient. 5 posts hammer latch assembly hammer latch assembly. This is best to do in a clear plastic bag as there is a very small index spring (#106-016) that may fly out. This particular one is from a newer Gamo, so it doesnât have an integrated tab attached to the rear, but everything else is the same: Place the screws in a safe place where they won't get lost. If I have heard one âsecretâ about how to care for an airgun, I have heard a dozen. Crosman 1077 is one of most reliable semi automatic air rifles that can fire quick shoots. To remove the Co2 tube and/or the valve pipe you will need to remove the Co2 valve (#1077A015) at the same time. Use a china marker or grease pencil on both the detent body and the valve body to create a line so you can reassemble them in the same configuration later. Next, slowly remove the right-hand side piece of the housing within the bag. There are two important reasons for this. Now reassemble the gun, generously lubing all the moving parts especially the contact between the hammer and hammer rod. i've tried to assemble without those 3parts and my crosman 1077 is working like a charm. GAMO, CROSMAN, CHINESE TRIGGER GROUP DISASSEMBLY: Hereâs a step-by-step on fully disassembling and reassembling your trigger pack. Now you should have a nice boost in power with a smoother trigger. The first step in caring for your airgun is to read and follow the directions given in the ownerâs manual. Step 8: Removing the Hammer, Hammer Spring and Hammer Pivot Pin See picture below: Step 2: Removing the Stock It also has enough built-in accuracy for dad to use to discourage amorous night critters. Remember that the larger bolt type band screw (#1077-042) is from the front most hole. First, the ownerâs manual applies to that specific model so the information is exact. Airgun parts and supplies for airgun repairs, or modifications including seal kits, adapters, stocks, barrels and more. This is amazing gun that can be used for teaching accuracy or foâ¦ All the tools that you will need are pictured on the left. 1077 & 1077W PART LIST Manufacture Start Date: 10/01 Part Number Description Part Number Description 10604 TubeRetaining Ring The pellet magazine is released by pressing release buttons on both sides of the magazine and pulling it downwards. Maybe yours just needs a new valve. Handy Things to Have: 1. Be aware of small loaded springs when taking the main housing/receiver body apart (eye protection is recommended). Now you may gently ease the stock away from the rest of the rifle. If you would like a complete parts reference, please see: Here 2mm Allen key/Hex wrench. Never exceed the number of pumps specified for your airgun (usually eight or ten). Several small trays to hold parts such as screws, pivot pins and springs so they won't get lost. I see many older airguns that would be still functioning if they had not been abused. Snap-ring/Circlip pliers (for valve disassembly only). I once removed an airgun from the case in which it had been transported for several days to find that the entire barrel had a reddish appearance due to rust. Safety: An old rag or cloth to wipe oil off your hands and parts. Reassembly is easy as it only requires inserting it into the magazine and securing it by pulling it backwards then inserting the maâ¦ Now that you have the Snap-ring/Circlip (#1077-051) out the way, usually all the parts of the valve will fall out. Some airgun parts are made of plastic. Lost a manual or need a part? This 12-shot repeater runs on standard 12-gram CO2 cartridges and fires as fast as you can pull the trigger. It is a relatively inexpensive rifle, one that a youngster can afford. Start by lifting the tube (#1077-017) out from the housing (#1077-021/#1077-022) at the same time as the valve and the brass valve pipe (#1077-016) place it all down away from the housing. Even when the gun is in a case it is possible for moisture to condense on it which will lead to rusting. If it says to apply two drops of oil to the pump wiper, do not apply five drops. See details - NEW Crosman 1077 Rifle COMPLETE CO2 VALVE ASSEMBLY - OEM PART. Crosman has been making their 1077, which is a .177-caliber copy of Ruger's popular 10/22 semiauto rifle, for many years. Accurate shooting requires the barrel to be indexed in the same position for each shot, and this may not be possible if the locking mechanism is damaged. Don't forget to put these screws in a safe place separated from the three stock screws. Medium sized Flat-head screwdriver. I have examined far more CO2 guns with barrels rusted on the inside than I have pneumatic guns. Coating external metal surfaces with a thin film of oil will prevent most rusting, at least for a short time. The spring could shoot out while attempting this. Now that all the screws have been taken out of the housing (#1077-021/#1077-022) slide everything into a clear plastic bag. Call 888.262-GUNS or buy online from convenience of your home Crosman Corporation is an American designer, manufacturer and supplier of shooting sport products, with a long-standing presence in airgun design and a tradition of producing pellet and BB guns. Lift out the trigger assembly (#1077-033) carefully making sure that the trigger spring (#1077-014) doesn't fly out if it didn't already when opening the housing in Step 4B (#1077-021/#1077-022). Crosman 1077 Owners Site > hammer latch assembly. Remember on reassembly that the short, thicker screw goes in the front-most hole into the steel barrel band. Try to find out what is preventing the control from operating properly. I just use Crosman Pellgun Oil throughout because there was so much plastic in there. The valves of air and CO2 guns need a small amount of lubricant. Airguns are mechanical objects that have numerous parts. To start you will need to take the sealing parts for the Co2 feed pipe (#1077-016) off the side of the valve (#1077A015). Crosman 0413 Speedloader 12-Shot .177-Caliber Pellet Clips For Crosman 1077 Series And WildFire Airâ¦ $4.95 ($30.94 / 1 oz) In Stock. To do this take the valve and hold it by the ends between your thumb and index finger, and with your thumb and index finger of the opposing hand hold the ends of the bushing retainer (#1077A038) that seals the brass feed pipe to the valve (don't forget to hold the valve over a tray whilst doing this as the bushing, o-ring and a washer may fall out. Aug 30, 2015 - Crosman 1077 1077W RepeatAir AirSource disassembly instructions and guide with tools, hardware and fasteners If you have a particular airgun, follow the instructions in the ownerâs manual for that airgun. and even a little more power. Such âadviceâ may be sound, but often it comes from someone who knows very little about airguns and never had the instruction manual. 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