Winchester \90hkedown Guide

MADE EASYClean your o\ryn gun with confidence.

Saves you money on repairs!

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Winchester I90

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I Barrel and Barel Collar

2 Banel Collar Covcr3 Breechbolt Complete( 1 90)4 Breechbolt Cornplete( 1 50)

5 Buttplate6 Butplate Screws? Buttplate Spacer8 Buttstock

9 ButtstockBoltl0 Buttstock Nut with Wastrer

11 Carrier12 Canicr Coil Sp'ring13 Carrier Coil Spring Plunger14 Canier Pinsl5 Carrier Stop Pin16 Cocking Flandle1? Disconnectq ard Sear Asscmbly(l 50)

18 Discoinrecto and Sear Assembly(l90)

19 Discomectq Coil Spring

20Disconnectq Pin

2l Extracto(150)22 Extracto(190)23 Extractor Pin(l 50)

24 Extractor Pin(1 90)25 Extractor Plunger

26 Fecd Guidc27 Finger Irver28 Finger kver Arm

29 Finger l-cver Latch30 Finger bvcr Latch Pin

31 Fingcr Irver Pin

32 Firing Pin(I50)

33 Firing Pin(l90)34 Firing PinPlungcr35 Firing Pin Spring

36 Firing Pin Stop Pin37 Forcarm38 Hamrner

39 Hamrrrr Housrng4OHammer Pin41 Hamnrr Spring42 Hamnrer Spring Supports43 Locking Plate44 Ma gazine l'ube, Outside45 Magazine Tube Retaining Pin, Outside

46 Magazine Tube , krsidc Assemblr{Rifle)4? Magazine Tube, Inside Assembly48 Magazine Tube Bracket49 Pistol Grip C.p Assembly50 Receiver51 Recoil Plate

52 Retum Spring53 Return Spring Guide54 Safety(1 50)55 Safeq(190)

56 Sight, Frm(Plmtic)

57 Sigt*, Frsrt(Mctal)58 Sigtrr Base, Rear59 Sigtrt Basc Scrcw, Rear

60 Sight Elevator, Rear

61 SightLraf, Rear

62 Sigtt Spring, Rer

63 Sigtrr Windage Srew, Rear

64 Rear Sight65 Rear Sigtrt Elevator66 Slide Ann67 Slide Arm Screw

68 Trigger Assembly69 Trigger Guard70 Trigger Guard(I90)?1 Trigger Gurd Pin, Rear72 Trigger Pin73 Trigger Spring

.45

.25

71\

WARNING:

Make sure the gun isentirely unloaded beforestarting the disassembly;visually check some roundscan hide.

Read every insffuctioncarefully using the pictureonly as a reference.

RADOCY1 800 356 47s9

2. Then push out the large plastic cross pin located inthe receiver just above the trigger. The pin can be

pushed out toward either side.

1. Cycle the bolt to cock the hammer and movethe safety to the on position. Remove the maga-zine tube.

3. Pull the trigger housing down at the rearand move it slightly toward the rear to disen-gage its forward stud from its recess insidethe receiver. Remove the trigger groupdownward.

4. Through the bottom of the receiver, retract the boltslightly and use a finger or tool to hold it inside the receiver.Lift the front of the bolt, slightly, and remove the bolt handle

from its hole in the bolt.

5. Move the bolt toward the rear to clear its forward endfrom the barrel throat and tipthe front of the bolt upwarduntil it can be removed fromthe receiver. Caution: Thebolt spring is under tension.Ease it out.

6. Remove the bolt spring and its nylon guide from thereceiver.

7. Removal of the buttstock requires a spe-cial socket wrench with a deep end. When thestock is removed the recoil plate on the insideof the receiver will be released for removal.

8. Drift out the pin in the end of the magazine tube.Becareful not to damage the tube while drifting out the pin.

Remove the cap, spring and follower out the front.Disassembly only if necessary.

9. Drifting out the small, short cross pin in the magazine tube hanger near the muzzle willrelease the outer magazine tube for removal toward the front" This will allow the forend tobe taken off downward. After removal of the forend, the nylon forend mount is easily slidout of its dovetail toward either side(make a small mark("L") on the left side for reassem-blv).

10. Fle* the rear sight very slightly upward, andtake out the sight elevator. Drifting out the rearsight toward the right will release the barrel collarcover for removal upward, giving access to thebarrel collar.

Not Recommended for Normal Thkedown: With the proper wrench tum the banel collarcounterclockwise until it is out of the receiver. Remove the barrel towards the front. Thecollar cannot be removed because of the magazine hanger. If the barrel is tight, grip it in a

Read Steps #ll-#14 before beginning.

11. Drift out the vertical pin on the left side of the bolt toallow the firing pin to be moved toward the rear. This willease the tension of the combination firing pin spring andextractor spnng.

12. Remove the extractor pivot pin from its hole in the topof the bolt. Tapping on the underside of the bolt will allow

removal of this pin.

13. There will be a steel ball bearing on each end of the spring behind the extractor. Re-move the extractor carefully; then the first ball bearing; then the

spring; then the last ball bear-ing. xMoving the firing pinforward slightly will push thespring out.

1-4. Re-ove the firing pin out towards the rear.

15. Move the safety to the off position, restrain the hammerand pull the trigger, lowering the hammer to the fired posi-tion. Restrain the sear/disconnector assembly and removeits pivot pin toward the right.

L6. Remove the sear/disconnector assembly upward.The sear and its spring are a pernanent assembly insidethe disconnector; the pivot pin being riveted in place at

the factory. Do Not Disassemble.

18. The right rear tail of thehammer spring retains the

safety.Turn the safety slightlyand remove toward the left.

.When replacing the safety inthe trigger housingl place it as shown. The red ring on the

left with the grooves up so the hammer spring tail on the rightlies in the sroove on the safetv.

17. Push the hammerpivot out toward either side and remove the hammer assem-bly upward. The hammer spring and its two nylon supporlpieces are easily removed from the hammer.

A19. Push out the trigger pivot pin and remove the trig-ger from the top of the trigger housing. The sear con-tact stud on the trigger is factor staked; do not dis-turbed it.

The top pinthe right.

Read Steps #20-#24 before beginning.

retains the carrier lever. Drift it out towardsThe carrier lever is not removed at this time.

20.

21. The roll pin can be drifted out either way. Once it passes thespring and plunger; restrain the spring and plunger with a tool anddrift it out the rest of the wav.

22. Remove the carrier lever tothe rear. Restrain its plunger and

spring, so it is not lost.

23. Re-ove the plunger and

24. Drifting out

thehousinsR.n:l:i?ilffiTliJi?ir'.','d;:iTl"fr:Reassembly Tips:

Note that the hammer pivot has one flat side. Be sure both of thenylon hammer spring supports are oriented so that their flat sidesline up with the flat surface on the pin. Do not force the pin throughor damage will occur to the nylon bushings.

When replacing the sear/disconnectorassembly be sure the lower end of the sear

spring goes toward the rear, down theslope of the trigger.

When installing the outer magazine tube, be sure it is fully to therear and the groove in its upper flange is aligned with the crosspin hole in the hanger before inserting the cross pin. Using a non marring hammer gentlytap it into place.

When driving the firing pin stop pin on the left side of the bolt, the extractor pivot pin mayfall out. Insert the bolt handle temporarily to stop this.

When replacing the bolt spring and guide, use a small screwdriver to push in the spring insmall increments, while keeping pressure on the plunger. When the rear tip of the plunger isin the spring hole, restrain the plunger with a fingertip while inserting the bolt and then thebolt handle. Be sure the plunger rests in the recess of the bolt correctly.