A Telescopic Sight Group Rifle MA

(1) Remove the right lateral adjusting screw from the mount base (fig- 34).

(2 ) Grasp the sight just to rear of front mount ring and swing rear end away from receiver (bolt handle side) until sight is at right angles

Springfield M1903a4

ml 903a3

M1903a3 Rear Sight

vil903

M1903a3 Rear Sight

M1903A3

vil903

M1903A3

TOP BOTTOM

RA PD 84306

figure 37 - Followers of M1903 and M1903A3 Types

— Top and Bottom Views to receiver (fig. 34 shows sight partially dismounted).

(3) Lift sight straight up from mount base.

(4) Thread right lateral adjusting screw into mount base to prevent loss.

CAUTION: Do not disturb Jeff lateral adjusting screw, as it is staked in position for alinement of sight b. Bolt Group (fig. 35). Place cut-off at center notch, cock rifle, and turn safety lock to a vertical position. Raise bolt handle and draw out bolt to rear.

c» Floor Plate, Magazine Spring, and Follower Group, Rifles M1903 and M1903A1 (fig. 36). With the bullet end of a cartridge or pin drift, press on floor plate catch (through hole in floor plate) at the same time drawing bullet to rear; this releases the floor plate» Remove floor plate, magazine spring, and follower together*

NOTE: Either the M1903 or the M1903A3 type follower (fig. 37) may be assembled to the Rifles M1903 and M1903A I. Either type follower should be removed from these rifles as explained above.

d* Magazine Spring and Follower Group, Rifles Ml903A3 and M1903A4 (figs. 37 and 49),

(1) The Rifles M1903A3 and M1903A4 may be assembled with

M1903 Floor Plate

Os c

either the M1903A3 or the M1903 type follower (fig. 37), as explained in paragraph 3 c (9), The Ml903 type magazine spring and follower can only be removed from the Rifles M1903A3 and M1903A4 by removing the front and rear guard screws (fig. 49) and pulling out the trigger guard magazine assembly together with the magazine spring and follower. (Unless the rifle is to be disassembled further, the trigger guard magazine assembly should be reinstalled at once, as the guard screws hold the barrel, receiver, and stock groups together.)

(2) The M1903A3 type follower (fig. 37) can be removed from the Rifles M1903A3 and M1903A4 as described above. It also may be removed from the Rifle M1903A3 without removing the trigger guard magazine assembly or bolt assembly as described below. This latter method is not practical in the case of the Rifle M1903A4 due to interference of the mount base assembled to the top of the receiver. The method of removal described below should never be attempted when the M19Q3 type follower is assembled, as damage to the follower and chamber of the barrel will result To remove M1903A3 type follower from Rifle Ml903A3 without removing trigger guard magazine assembly, proceed as follows, else diffculty may be encountered«

(a) Position rifle with muzzle to left

(b) Set cut-off at wON" position.

(c) Unlock and pull bolt to extreme rearward position.

{d) Insert nose of bullet directly in front of ejector and against left side of follower rib (a, fig. 38).

(e) Tip rear of follower downward and toward right side of receiver until front left side of follower emerges through magazine slot at front of receiver to rest upon lip of receiver.

(f) Move bolt forward slowly against rear face of follower to disengage follower from magazine spring (b, fig. 38). (It may be necessary to pry up rear end of follower to engage bolt.)

CAUTION: Do not allow front end of follower to strike mouth of chamber.

(g) Pull bolt to rear and remove follower and magazine spring,

8, REINSTALLATION OF GROUPS IN RIFLE.

a, Fluor Plate, Magazine Spring, and Follower Group, Rifles M1903 and M1903A1. Insert floor plate, magazine spring, and follower group (either type follower, fig. 37) into the magazine, follower first with narrow end forward. Place the tenon on the front end of the floor plate in its recess in the magazine; then place the lug on the rear end of the floor plate in its slot in the trigger guard. Press rear end of floor plate forward and inward at the same time, forcing floor plate into its seat in trigger guard.

K Magazine Spring and Follower Group, Rifles M1903A3 and M1903A4. These rifles may be assembled with either the M1903

M1903a3 Cartridge Follower

Figure 39 — Inserting Assembled Magazine Spring and Ml903A3

Type Follower in Rifle MI903A3

Figure 39 — Inserting Assembled Magazine Spring and Ml903A3

Type Follower in Rifle MI903A3

type follower or the M1903A3 type follower as explained in paragraph 3 c (9) and 7 d. Method of reinstallation varies as explained below:

(1) Ml903 Type Follower (fig. 37). With trigger guard magazine assembly removed, place assembled magazine spring and follower in the magazine, spring first, and narrow end of follower forward Insert group into receiver from bottom and thread in guard screws evenly and tightly (short screw forward)- Depress follower on spring a few times to assure proper seating.

(2) M1903A3 Type Follower (fig. 37). Reinstall magazine spring and this type follower in the Rifle M1903A4 as explained in step (1), above. If trigger guard magazine assembly has not been removed, magazine spring and this type follower may be reinstalled in the Rifle M1903A3 as follows:

(a) Position gun with muzzle to left

(b) Insert small end of magazine spring under ears of follower and slide fully forward,

(c) Compress magazine spring against follower and insert spring and follower sidewise into magazine opening of receiver with small end of follower toward the front and with spring toward left (near) side of receiver (fig. 39)-

(d) Rotate follower so that rib will project upward.

(e) Press rear end of follower down to bottom of magazine in order to insure seating of spring under ears of follower.

c. Bolt Croup. See that the cut-off is at center notch. Hold rifle with fingers of left hand under receiver, and thumb extending over left side of receiver. Take bolt in right hand, with safety lock in vertical position, safety lug up, and extractor alined with lower (unslotted) bolt locking lug. Press rear end of follower down with ; left thumb and push bolt into rear of receiver, lower bolt handle, turn safety lock and cut-off down to the left with right hand. When replacing bolt with new one, refer to paragraph 43 L

d. Telescopic Sight Group* Rifle M1903A4.

(1) With right lateral adjusting screw removed from mount base, grasp sight just to rear of front mount ring. With sight at right angles to mount base and rear (eyepiece) end to right (bolt handle side) of receiver, insert mounting lug on front mount ring into mounting recess in front end of mount base.

(2) Press front mount ring down flat on base so that flat of ring lies on flat top of mount base.

(3) Swing rear (eyepiece) end of sight slowly to rear, towards receiver (fig. 34) until flat lug on rear mount ring is seated squarely on mount base and against head of leit lateral adjusting screw. (It may be necessary to lift rear lug slightly to slide it on mount base. This usually indicates misalinement of mount rings which should be corrected (par. 58). Do not force.)

(4) Thread right lateral adjusting screw into mount base to hold rear mount ring in position. Be sure cupped heads of lateral adjusting screws are fully engaged in radial grooves of rear mount ring and mount base. If such engagement is difficult, it indicates that the flat lower faces of the lugs on mount rings are not parallel and the rings should be adjusted (par- 58),

NOTE: If mount rings become loose, or out of adjustment with respect to the mount base, they may be repositioned as explained in paragraph 58.

9. BOLT GROUP, DISASSEMBLY (figs. 42 and 43).

a» Hold bolt in left hand (fig. 40), press bolt sleeve lock in with thumb of right hand to unlock bolt sleeve from bolt, and unscrew bolt sleeve by turning to left Firing pin should be cocked, and safety lock in the "SAFE" position.

b» Hold bolt sleeve between forefinger and thumb of left hand (fig. 41), draw cocking piece back with middle finger and thumb of right hand^ and turn safety lock down to the "READY" position with the forefinger of the right hand. This allows the cocking piece to move forward in the bolt sleeve, thus partially relieving the tension of the mainspring. Care should be exercised in this operation to avoid pinching the fingers when the spring pressure is released*

c. With the cocking piece against the breast, draw back firing pin sleeve with forefinger and thumb of right hand and, holding it in this position, remove striker with the left hand Remove firing pin sleeve y — •

A. DEPRESSING BOLT 5LCEVI LOCK RA PO 7611
Bent Firing Pin

b. REMOVING FIRING PIN MECHANISM

Figure 40 — Disassembling Bolt Group b. REMOVING FIRING PIN MECHANISM

Figure 40 — Disassembling Bolt Group

ORDNANCE MAINTENANCE - U.S. RIFLES, CAL. .30, Ml903, M1903A1, M1903A3 AND M1903A4

M1903a3 Parts

and mainspring; pull firing pin out of bolt sleeve. In releasing pressure of mainspring, take care to point striker away from all personnel Relieve pressure gradually to avoid losing parts.

d. Turn extractor to right, forcing its tongue out of its groove in the front of bolt Force extractor forward and off bolt e. The extractor collar is bent into position on the bolt in manufacture and, together with the bolt, forms a permanent assembly known as the bolt assembly.

f. Turn safety lock to dismounting bevel position on the bolt sleeve halfway between the "READY" and the vertical position. Remove it by striking front face of thumb piece a light blow. The safety lock spindle is driven into the thumb piece and headed over at manufacture, forming a permanent assembly which includes the safety lock plunger and spring.

g. Drive out bolt sleeve lock pin from top, and remove bolt sleeve lock and spring, being careful not to lose spring.

h. The firing pin rod is screwed into the cocking piece and riveted at manufacture. Together, they form a permanent assembly called the firing pin assembly.

10. BOLT GROUP, ASSEMBLY ffigs. 42 and 43).

a. In assembling the bolt sleeve lock to the bolt sleeve, be careful to compress the lock and spring while driving in the pin from the bottom of the bolt sleeve.

b. To assemble the safety lock and bolt sleeve, insert the safety lock spindle in its hole in the bolt sleeve as far as it will go. Then, with thumb piece vertical and pressed against some rigid object, introduce the point of the safety lock assembling tool provided for this purpose, or a small screwdriver, if the special tool is not available, between the safety-lock spindle and safety-lock plunger, forcing the latter into the thumb piece until it slips over the edge of the sleeve (fig. 44). Further pressure on the safety-lock thumb piece, together with the gradual withdrawal of the tool, will complete the assembling.

e. With the left hand, grasp rear of bolt, handle up, and turn extractor collar with thumb and forefinger of right hand until its lug is on a line with the safety lug on bolt. Take extractor in the right hand and insert lug on collar in undercuts in extractor by pushing extractor to rear until its tongue comes in contact with rim on face of bolt A slight pressure with the left thumb on top of rear part of extractor assists in this operation. Turn extractor to right until it is over the right lug. Take bolt in right hand and press hook of extractor against butt plate or some rigid object until tongue on extractor enters its groove in bolt d. With safety lock turned down to the "READY" position to permit the firing pin to enter the bolt sleeve as far as possible, assemble

ORDNANCE MAINTENANCE - U.S. RIFLES, CAL. .30, M1903, M1903A1, M1903A3 AND M1903A4

Left Hand Bolt 1903 Springfield Rifle

a un

Left Hand Bolt 1903 Springfield Rifle

rn O

a un

co U

O ui wk

m co

00 oE

M1903 Rear Sight Collar Lock Pin

Figure 44 — Assembling Safety Lock to Bolt Sleeve, Using Safety Lock Assembling Tool

Figure 44 — Assembling Safety Lock to Bolt Sleeve, Using Safety Lock Assembling Tool bolt sleeve and firing pin. Place cocking piece against the breast and put on mainspring, firing pin sleeve, and striker. Hold cocking piece between thumb and forefinger of left hand, and by pressing the striker point against some substance not hard enough to injure it, force cocking piece back until the safety lock can be turned to the vertical position with right hand e. Insert firing pin in bolt and screw up bolt sleeve (by turning it to right) until bolt sleeve lock enters its notch on bolt

XL FLOOR PLATE, MAGAZINE SPRING, AND FOLLOWER GROUP; DISASSEMBLY (figs. 47 and 49). a. Raise rear end of lower portion of the magazine spring high enough to clear lug on floor plate and draw spring out of its mortise (Rifles M1903 and M1903A1). Proceed in the same manner to remove the follower.

h. The magazine spring of the Rifles M1903A3 and M1903A4 is disassembled from the follower in a similar manner. There is no floor plate in these rifles.

12. FLOOR PLATE, MAGAZINE SPRING, AND FOLLOWER GROUP: ASSEMBLY (figs. 47 and 49). a. To assemble the magazine spring and follower to the floor plate (Rifles M1903 and M1903A1), insert larger end of magazine spring in the mortise of floor plate and push in as far as possible. (Rear end of lower portion must lie ahead of lug on rear end of floor plate.) Insert other end of spring in mortise of follower in like manner«

b. The magazine spring of the Rifles Ml903A3 and M1903A4 is assembled to the follower by pushing the narrow end of the spring into the retaining slot in bottom of follower, and then pushing spring forward until retained by projection on rear end.

13. STOCK GROUP, DISASSEMBLY (figs. 48, SO, 51, and 53).

a. Remove upper band screw (Rifles M1903 and M1903A1) and drive upper band forward by a few short blows on the lug with a hard wood block. Unscrew stacking swivel screw and remove stacking swivel (In order to remove upper band from barrel, it is necessary first to remove front sight movable stud (par, 15) .)

NOTE: The bayonet stud band of the Rifles M1903A3 and M1903A4, which corresponds to the upper band of the Rifles M1903 and M1903A1, is removed in a similar manner by removing the bayonet stud band screw. The front sight group must be removed before the band can be removed from the barrel of the Ml903A3. There is no front sight on the Rifle M1903A4. The stacking swivel band can then be removed by loosening the stacking swivel screw. The end of this screw is expanded and should not be removed from the band, else the threads will be stripped.

b- Unscrew lower band screw and remove lower band swivel (Rifles M1903 and M1903A1), Press in rear end of lower band spring and move lower band forward (fig. 46) beyond end of stock.

NOTE: End of lower band screw of Rifles M1903A3 and M1903A4 is expanded and should not be removed, else threads will be stripped. To remove band from stock, back out screw about V& inch, spread prongs of band, depress lower band spring, and move band forward beyond end of stock.

c. Draw hand guard assembly (fig. 45) forward until free of fixed base (Rifles M1903 and M1903A1) and remove. Do not remove clips unless necessary, as they may become bent out of shape.

NOTE: Barrel guard assembly of Rifles M1903A3 and M1903A4 (fig. 53) is removed in a similar manner by drawing free of barrel guard ring. The barrel guard ring can be removed by sliding forward, if all other bands have been removed.

d. Remove front and rear guard screws and trigger guard group (fig. 47) (Rifles M1903 and M1903A1). It may be necessary to tap gently on front and rear of trigger guard to loosen. To remove floor plate catch and spring from trigger guard, drive out the floor plate catch pin from either side.

NOTE: Trigger guard magazine assembly of Rifles M1903A3

Springfield M1903a4 Rifle

ORDNANCE MAINTENANCE — U.S. RIFLES, CAL .30, M1903, M1903A1, M1903A3 AND M1903A4

1903 Springfield Floor Plate Assembly

*A re 7411

Figure 4ù — Depressing Lower Band Spring to Remove Lower Band - Parts for U.S. Rifles, cerf. .30, M1903 and M1903Al and M1903A4 is removed in a similar manner by removing guard screws (fig. 49). There is no floor plate catch in this assembly.

e. Remove barrel and receiver assembly group from stock (tig. 45). The barrel is threaded into the receiver and assembled to it at the time of manufacture, to be issued in that manner as a single assembly. They should never be unscrewed except at an ordnance establishment properly equipped for this work.

£• To remove lower band spring, drive its spindle out of its hole in stork from the left g. To remove guard screw bushing, punch out from top or bottom.

h. Unscrew butt swivel screws and remove butt swivel assembly from stock (fig. 48). The butt swivel assembly, consisting of th* plate, swivel, and pin, is permanently assembled and issued complete.

NOTE: There is no pin in the butt swivel assembly of the Riflef M1903A3 and M1903A4 (fig. 50).

i. To remove butt plate assembly (fig. 48), unscrew butt plate screws. To disassemble, unscrew butt plate spring screw and remove butt plate spring (Rifles M1903 and M1903A1). Drive out butt plate pin and remove butt plate cap.

NOTE: Butt plate trap pin of Rifles M1903A3 and M1903A4

1903 Floor Plate Diagram

DISASSEMBLY AND ASSEMBLY

PIN -A130004

SPRING - Bl46883 CATCH - A) 35890

BUSHING -A135889

GUARD - D28J80 SCREW - B128414

SCREW -B128413

FOLLOWER - C45029

- C45034

RA ro 7620

figure 47 — Trigger Guard and Floor Plate Group — Exploded View - Parts for U.S. Rifles, cal. .30, Ml903 and MI903A1

ORDNANCE MAINTENANCE — U.S. RIFLES, CAL. .30, M1903/ M1903A1, Ml903A3 AND M1903A4

Explodedview Sprinfield 1903

ss 2i

ORDNANCE MAINTENANCE — U.S. RIFLES, CAL. .30, M1903/ M1903A1, Ml903A3 AND M1903A4

PIN - Al 30009

1903 Springfield Floor Plate Assembly M1903 Springfield Exploded View

PIN - Al 30009

STOCK ASS Y-

TRICCER -

MAGAZINE. ASS Y -

Springfield Rifle 1903 Bayonet Guard

L SCREW- B128413

Figure 49 — Trigger Guard Magazine and Trigger Group — Exploded View - Parts for U.S. Rifles, cal. .30, Ml903A3 and Ml903A4 53

L SCREW- B128413

RA PD 56361

MAGAZINE. ASS Y -

Figure 49 — Trigger Guard Magazine and Trigger Group — Exploded View - Parts for U.S. Rifles, cal. .30, Ml903A3 and Ml903A4 53

CO CD

Springfield 1903 Front Sight M1903 Springfield Exploded View

(corresponding to butt plate pin Rifles M19G3 and M1903A1) is upset at ends at manufacture and should not be removed.

j. The front and rear stock screws (or pins) serve merely to reinforce the stock, and should not be removed unless necessary for repair or replacements,

Was this article helpful?

0 0

Post a comment