The BERETTA XTREMA2 Disassembly and Assembly
Transcription
The BERETTA XTREMA2 Disassembly and Assembly
The BERETTA XTREMA2 Disassembly and Assembly Xtrema2DandA TS-2 Revision 0 Date 11-014-05 Revision 0 Date 11-14-05 Released by: RGB © 2005 Beretta USA Corp. OPERATING SYSTEM OVERVIEW BERETTA XTREMA2 Revision 0 Date 11-14-05 Xtrema2 Locking System Overview The breech bolt of the Xtrema locks into the oversize barrel extension, not the receiver, for increased strength and rigidity. This image shot from the front of the Receiver shows the “Dual Support Grooves” that stabilize the bolt assembly bars. “Dual reinforced bolt rails” offer the highest level of stabilization and extends the reliability of the action while controlling the orientation of the bolt assembly. Dual Locking Lugs for superior strength. Revision 0 Date 11-14-05 Gas Operation System Overview Fact: •Beretta gas operated shotguns offer one of the softest recoiling systems around because of our simple yet advanced design. •Gas ports are self cleaning and rarely require manual cleaning. “This photo was taken from the muzzle end of barrel shining a light through the gas ports.” Gas operation occurs when the spent gases pass through the gas ports inside of barrel as illustrated on all three photos. Revision 0 Date 11-14-05 •Chrome lining in our barrels aids in corrosion resistance and minimizes cleaning time. Magazine Cut-Off Magazine cut-off button: Simply depress the magazine cut off button and this will allow you to manually load one round at a time into the chamber while retaining any cartridges in the magazine tube. Revision 0 Date 11-14-05 BASIC DISSASSEMBLY AND ASSEMBLY BERETTA XTREMA2 Revision 0 Date 11-14-05 Check To Make Sure Gun Is Unloaded Step 1: Before performing any work on your Xtrema 2, always check to ensure that the gun is unloaded: chamber empty, magazine tube empty and receiver cartridge carrier empty. Pointing the muzzle of the shotgun in a safe direction depress the silver colored carrier stop button in towards the butt of the shotgun. Step 2: Grasp and pull the cocking handle to the rear, locking the breech bolt in the open position. Revision 0 Date 11-14-05 Check to Ensure The Gun Is Unloaded Step 3: Visually inspect the chamber, carrier, and magazine tube to ensure that the shotgun is unloaded and safe. Magazine Carrier Follower After following these safety steps, you Chamber are now ready to start the disassembly of your Beretta Xtrema2 Step 4: Move the Safety Button to the “On Safe” position. The red band should not be visible on the safety button shaft. Revision 0 Date 11-14-05 Safety Off ! Safety On Removing Barrel From Receiver 1. Remove Cap 2. Remove Forearm 3. Remove Barrel Exhaust ports vent surplus operating gases created by higher pressure ammunition, adding to the soft felt recoil effect of the Xtrema. Revision 0 Date 11-14-05 4. Remove piston from the gas cylinder using your fingers tips, no tools are required to perform this task. Replacing Gas Piston Step 1: When replacing your gas piston observe that the gas ring “scrapers” are facing towards the muzzle end. Step 3: utilizing minimal force push the gas piston back into cylinder. Revision 0 Date 11-14-05 Step 2: IMPORTANT NOTE: To prevent possible damage to the gas ring, squeeze and hold the gas ring in a compressed position as the piston is inserted into the cylinder. Step 4: Continue pushing the gas piston until it stops flush with chamber. Removing Bolt From Receiver The bolt head has two visible grooves around the neck. The groove closest to the chamber end of the bolt head, highlighted in red for instructional purposes only, is your visual indicator to facilitate removing the cocking lever from the bolt. As keyway recesses inside the bolt head aligns, the “keyed” cocking handle will be free to pull out of the assembly. Revision 0 Date 11-14-05 Push the bolt head rearward until the forward grove on the neck is even with the front edge of the bolt body. Simultaneously, pull on the cocking handle. This picture shows the “keyed” cocking handle removed from the bolt assembly. Note the alignment of the keyway recesses in bolt head and bolt body. Removing Your Trigger Group Assembly Never attempt to remove the trigger assembly with the bolt in the open position. A. Drift the trigger plate retaining pin from the left side of the receiver towards the right (bolt) side. B. Pulling forward and down on the trigger guard will free the trigger assembly from receiver. C. Once removed, clean and lightly lubricate the moving parts with the Beretta Oil supplied with your gun. Correct position of bolt to remove trigger assembly Revision 0 Date 11-14-05 A B C Removing The Gel-Tek Pad In this illustration we are utilizing the Beretta shotgun tool, that has been specifically design to work on any Beretta Shotgun. Revision 0 Date 11-14-05 Lifting the “U” clamp will free the Gel-Tek Pad. The “U” clamps are secured to the posts as illustrated on these two photos. Removing The Xtrema 2 Stock 1. Using a 13 mm socket and extension remove the stock bolt nut and washer. 3. With the nut removed the stock assembly should come away free but, if not, a gentle chopping motion to the stock will free it from the receiver. Revision 0 Date 11-14-05 Beretta Shotgun Multi-Tool 2. Once nut is removed continue the remaining steps illustrated below. 4. When removing the stock, make careful note of the orientation of your rear drop plate washer inside the stock and front drop spacer between the stock and receiver. The orientation of these spacers controls cast on/off and comb height. Removing Kick- Off Recoil Reduction System (on models so equipped) 5. Remove the swivel bushing plug or swivel in order to gain access to the swivel bushing that secures the Kick-Off system insert. 7. Unscrewing the swivel bushing. Revision 0 Date 11-14-05 6. Utilizing a 6mm Allen wrench, unscrew the sling swivel bushing. 8. Completely remove the swivel bushing in order to free the Kick-Off insert from the stock. Separate the insert from the stock. Installing The Kick-Off Recoil Reduction System 1. Determine the previous drop setting and properly orient the shim. 2. Slide the rear drop plate into the channels of the insert. The Drop Plate must be installed with the desired cast stamping facing the top and rear of the stock. Plate is located in channels and not on top of them. Revision 0 Date 11-14-05 Drop plate properly installed IMPORTANT NOTE: The orientation of the cast and drop markings on the front Drop Spacer must be identical to the rear Drop Plate. Failure to follow this instruction may result in stock breakage! Installing The Kick-Off Recoil Reduction System 1. Align the Kick-Off insert with the stock. Make sure your rear drop plate washer is properly orientated. Special notice: Area on stock: Upon reassembly pay close attention to the “bevel” at the end of the stock. These angles allow the rubber cover to seat flush with the stock. 2. Appling gentle but even pressure, walk the rubber boot around the stock with your thumb to ensure that no kinks or buckling occur once installed. 1. Push here A closer look at a proper fit once the insert is flush with rear of stock. Revision 0 Date 11-14-05 2. Install bushing 3. Firmly holding the insert to the back of the stock install the swivel bushing to secure KO recoil reduction system to stock. Avoid Installing The Insert Boot Wrong! Improperly Installed Recoil Reduction System – boot has pulled away from stock. Revision 0 Date 11-14-05 Properly Installed. The rubber boot is smooth with the stock. Installing The Xtrema 2 Stock Photo showing the relationship of the front drop spacer and rear drop plate. 2. Slide stock over the stock bolt tube. Revision 0 Date 11-14-05 1. Orient the front drop spacer with the correct Setting facing the top and rear of the stock. 3. Install the lock washer and nut. Tighten the nut to 12 ft. lbs. or until snug. Install the Gel-Tek pad. IMPORTANT NOTE: The orientation of the cast and drop markings on the front Drop Spacer must be identical to the rear Drop Plate. Failure to follow this instruction may result in stock breakage!
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