Handling Warning

Do not load the pistol until you are ready to use it, and unload it immediately when you have completed shooting. (See also UNLOADING WARNING in this Manual.)

Exercise utmost care and caution at all times when handling any firearm. The firearm should be carried and handled so it will not be dropped or struck. With the safety off (in the "F' position) the pistol is in the ready-to-fire mode. Therefore, as in any firearm, any blow or jar which is of sufficient force to actuate components of the firing mechanism (trigger or hammer or sear or firing pin) may cause a chambered cartridge to discharge. Such a discharge can occur with or without the trigger being directly struck or touched.

When carrying the pistol with a loaded magazine in place, the chamber should be empty and the bolt should be closed.

Do not carry the pistol with a cartridge in the chamber!

Do not carry a loaded pistol with the safety in the 44 F" position! The user should never depend on a safety mechanism or any other mechanical device to justify careless handling or permitting the pistol to point in an unsafe direction. The shooter should always be alert to the possibility of accidental discharge regardless of the position of the safety. The only safe pistol is one in which the bolt is open, the chamber is empty and there is no magazine in the gun.

FIRING WARNING

When firing the pistol, be sure that other shooters and bystanders are well clear of the shooter and a safe distance to the rear. Empty cartridge cases are ejected from the pistol with some velocity and could cause injury to any person who is standing in their path. Left-handed shooters should be particularly cautious concerning ejected cartridge cases and powder. All shooters should wear shooting glasses when firing the Ruger Automatic Pistol.

The bolt of the Automatic Pistol moves rearward forcefully and at high speed when the gun is fired. Do not position your face, hands, or any part of your body so the bolt can strike you when the gun is fired.

WARNING: Never clean, lubricate, disassemble, assemble, or work on a firearm while it is loaded.

1. Remove the magazine. Draw the bolt fully rearward and visually inspect the chamber to be certain there is no cartridge in it and then release the bolt. Pull the trigger, to be sure hammer has fallen. Hammer must be uncocked before pistol can be disassembled.

2. Insert a blunt, 'pointed' instrument in the oval recess of the mainspring housing (at the back of the grip) and swing the housing latch open like the blade of a pocket knife. (Some users find that a paper clip, looped over the latch, is an ideal 'instrument' for this phase of disassembly.)

3. Swing the entire housing outward on its pivot and pull downward, removing mainspring housing and bolt stop pin, as shown in Figure 8. With new pistols it may be necessary to lightly tap (with a plastic hammer) on the top portion of the bolt stop pin — which protrudes above the receiver — while pulling downward on the mainspring housing.

4. With the mainspring housing and bolt stop pin (as an assembly) removed, a blow (with a plastic hammer) on the rear of the bolt will disengage the barrel-receiver assembly from the grip frame. The bolt can then be removed from the receiver. No attempt should be made to remove rivets or staked pins. Further disassembly should be undertaken only by the factory.

1. Slide bolt into receiver, spring upward. CAUTION: When sliding the bolt into the receiver, BE CERTAIN that the Firing Pin Stop (Part #A35B, a small pin) is in the bolt. If the bolt is assembled without the Firing Pin Stop in place, the first time the pistol is dry fired (no cartridge in the chamber), the firing pin will be free to move forward to the extent that it will dent the rear face of the chamber, thus rendering the Barrel-Receiver Assembly useless and beyond repair.

2. Place hammer in horizontal position. Push safety upward, to ON ("S" showing).

3. Place barrel-receiver on top of frame about one quarter of an inch ahead of its final position and press it backward and downward so that the lug (formed by the top end of the trigger guard) engages the front recess on the underside of the receiver (see Figure 8). When the rear end of the receiver is just about even with the

TO DISASSEMBLE FOR CLEANING

TO REASSEMBLE

HAMI)

HAMI)

Ruger Mark Bolt Face

rear end of the grip frame, the barrel-receiver is properly aligned. If alignment is not achieved by hand pressure, then it is necessary to strike the muzzle of the barrel with a plastic hammer or wood mallet. Maintain pressure in a downward direction on the receiver when striking on the barrel muzzle. CAUTION: Because the barrel muzzle must not be damaged in any way, it is essential that any hammer applied to the muzzle be plastic or wood.

4. Grasp the mainspring housing assembly and press the bolt stop pin (which is a part of it — see Figure 9) upward through the holes in the receiver. As this pin is pushed upward through the grip frame and receiver it also passes through the slot in the bolt and must also pass by the rear end of the recoil spring guide, camming the guide forward to put initial tension into the recoil spring. The best way to accomplish this is to hold the mainspring housing as a handle in one hand and holding the gun in the other, press the pin upward until the tip of the pin protrudes beyond the top of the receiver. At this point move the safety to the fire (F) position and then pull the trigger. Be certain the hammer is released to its fired position. When the hammer is in the fired position it is then possible to observe the hammer strut. That is essential to carrying out the next step.

5. Getting the mainspring housing in place correctly is best achieved in two stages: First, be certain the bolt stop pin is fully inserted, then Second, swing the housing into place and lock as described below. Remember, when the pin is protruding thru the receiver, be certain the upper end of the housing has engaged the ledge inside the lower portion of the receiver. If this engagement is not secure, the housing will pull out when it is swung closed.

6. The mainspring housing is now ready to bt swung shut, but it is essential that the hammer strut comes to rest on the mainspring plunger as the housing is closed.

The mainspring plunger lies inside the mainspring housing and may be seen through the slot in the upper end of the housing. If the hammer strut does not contact the mainspring plunger as the housing is swung shut, it will either be impossible to complete the closure of the housing or the housing may be closed but it will be impossible to draw the bolt all the way back. Note: It is also essential that the hammer itself be in its uncocked, upward position (resting on the firing pin) as the mainspring housing is swung shut. Some users find this phase of reassembly is best accomplished by holding the pistol with the barrel generally in a vertical position, but tilted at an angle that causes the hammer strut to drop into the correct position to 'meet' the mainspring plunger in the housing.

7. When proper engagement is achieved, closure is completed against tension of the mainspring, which can be felt as the housing is pressed home into the frame.

8. The housing latch may now be snapped shut, completing reassembly. To determine if the assembly has been correctly performed, pull bolt to its rearward position. The bolt should open fully. If it does not, disassemble and repeat step 5. above..

Note: The foregoing description of the reassembly procedure may give the impression that reassembly is difficult; but in reality it is a straightforward operation, once properly learned.

MAINSF

MAINSF

Ruger Mark Iii Jamming
Figure 9

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Responses

  • saare
    Which ruger mark 3s have the warning on the bottom of the barrel?
    3 years ago

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