SVT-40
Rifle Disassembly and Reassembly Instructions
SVT-40 Parts Legend
1
Stock
17
Middle Spring Guide
2
Barrel/Receiver Assembly
18
Rear Spring Guide
3
Piston Cover
19
Rear Recoil Spring
4
Hand Guard
20
Front Recoil Spring
5
Cleaning Rod
21
Piston Rod
6
Cross Pin Screw
22
Piston Spring
7
Trigger Assembly
23
Gas Piston
8
Swivel Band
24
Gas Cylinder
9
Magazine
25
Piston Rod Extension
10
Magazine Case
11
Magazine Follower
Spring
12
Magazine Bottom
13
Magazine Follower
14
Bolt
15
Bolt Carrier
16
Receiver Cover
*Numbers correspond with parts diagram
above, not steps blow.
Click on any of the small "Figure" images below to see a larger
version of the image.
Disassembly Instructions
1) Point rifle
in safe direction.
2) Flip safety
to safe position (as shown in figure 2).
3) Depress magazine
release forward.
4) Remove the
magazine from the rifle.
5) Open the
bolt and pull to the rear of the receiver to cock. Then
close bolt.
Note: Examine rifle to make
sure it is unloaded.
6) Push down on
receiver cover.
7) Push receiver
cover forward.
8) Disengage
rear spring guide from slot inside rear of receiver cover.
9) Remove receiver
cover.
10) Allow rear
spring and rear spring guide to expand and press against
rear of receiver.
11) Pull bolt
carrier to rear of receiver.
12) Pivot
bolt carrier as show in figure 12 (bringing handle
towards you).
Note: Be very careful with recoil springs
as they are compressed during this procedure.
13) Remove the
bolt carrier, bolt, and recoil spring assembly.
14) Figure 14 shows
the recoil spring assembly.
15) Remove front
recoil spring from spring guide.
16) Remove rear
recoil spring from spring guide.
17) Remove rear
spring guide.
18) Separate
bolt and bolt carrier.
19)Figure 19
shows the separated bolt and bolt carrier.
20) While depressing
cleaning rod release button on bayonet lug, remove
cleaning rod.
21) Depress
swivel band spring.
22) Slide the
swivel band forward.
23) Remove the
swivel band.
24) The piston
cover is hinged at front.
25) While lifting
from rear, remove piston cover.
26) Lift hand
guard from front.
27) Remove hand
guard.
28) Slide piston
cylinder down as shown in figure 28.
29) If you do not
have SVT tool you can use an adjustable wrench to turn piston
counter-clockwise.
30) Once the
piston is free, remove entire piston/rod assembly can
be removed.
31) Remove the
piston/rod assembly.
32) Remove piston
spring.
33) Remove the
piston rod extension from piston rod.
34) Remove piston
from gas cylinder.
35) Remove gas
cylinder from piston rod.
36) Rotate trigger
release cover to expose trigger release.
37) Depress
trigger release.
38) Trigger assembly
can be removed as shown in figure 38.
39)Figure 39
shows the removed trigger assembly.
40) If you do not
have an SVT tool you can if you are careful to not damage the
stock use a pair of adjustable pliers to loosen and remove the
cross pin screw.
41) Turn cross
pin screw counter-clockwise.
42) Remove cross
pin screw.
43) Lifting from
rear remove receiver and barrel assembly and set aside.
44)Figure 44
shows the disassembled SVT-40 rifle.
Reassembly Instructions
45) Return receiver
and barrel assembly to stock.
46) Compress
cross pin screw as shown in figure 46.
47) Install
cross pin screw.
48) Tighten
cross pin screw.
49) Place piston
rod extension over piston rod.
50) Replace
piston spring.
51) Insert piston
rod extension and piston spring into rifle as
shown in figure 51.
52) Replace
gas cylinder.
53) Reinstall the
gas piston.
54) Attach gas
piston.
55) Turn gas
piston clock-wise.
56) Replace
hand guard.
57) Replace
piston cover. It slides under guides at front.
58) Lower piston
cover to rear.
59) Replace the
swivel band.
60) Depress
swivel band spring and slide swivel band into place.
61) Reinstall
trigger assembly.
62) Depress
trigger assembly and lock into place.
63) Rotate trigger
release cover to cover trigger release.
64) Combine
bolt and bolt carrier.
65) Bolt and
bolt carrier fit together as shown in figure 65.
66) Replace
bolt and bolt carrier into receiver.
67) Tighten
rear guard screw.
68) Pivot bolt
carrier as show in figure 68 (bringing handle towards
you). Lay bolt carrier down and into slot in receiver
rails.
69) Push bolt
carrier to front of receiver.
70) Replace
rear recoil spring on rear spring guide.
71) Attach rear
recoil spring to middlespring guide.
72) Attach front
recoil spring to middlespring guide.
73) Slide front
recoil spring into rear of bolt carrier.
74) Compress
recoil springs by pressing on rear spring guide.
Allow recoil springs to expand and rest rear spring
guide against back of receiver.
75) Compress
recoil springs by pressing on rear spring guide. Place
rear spring guide into slot inside rear of receiver cover.
76) Slide receiver
cover into slots and slide to rear while allowing recoil
springs to expand.
77) Allow receiver
cover to slide into place.
78) Figure 78 shows
the reassembled receiver.
79) Cycle bolt
carrier handle to make sure there is no binding.
80) While depressing
cleaning rod release button on bayonet lug, replace
cleaning rod.