Cerwyn
Cerwyn (Site Admin)
Number of posts : 11075
Age : 65
Location / Country : North Wales
Registration date : 2008-07-20
 | Subject: Marushin MP40 Basic Reassembly Guide  Fri Sep 26, 2008 6:30 pm | |
| Basic Re-assembly Guide.... Marushin MP40 (ABS)  "
Step 1. Detonator Pin and Chamber.
The metal Detonator Pin is a push fit into the plastic Detonator Chamber.
A light spray with WD40 or Silicone Oil will protect both Pin and Chamber.
Simply push the pin back into the chamber to locate.Give the outside surface of the Detonator Chamber a light coating of Silicone Oil or grease, align the notch with its partner on the Barrel tube and slight it in until it seats home. Make sure the notches align.Step 2. Bolt and Recoil Tube
Simply push the telescopic Recoil Spring tube into the recess in the rear of the Bolt.
Give the Bolt assembly a light coat of WD40, Silicone Oil or Gun Oil, wipe away any excess, only a light coat is required.Step 3. Upper Receiver.
Lightly spray inside the Receiver Tube oil then push the Bolt and Recoil Tube inside guiding it along the slot. Double check the Charging Handle is set in "Fire" i.e. Red Dot visible otherwise it will not slide through the slot. Check that the Bolt locates over the Ejector correctly.Step 4. Assembly of Receiver Halves
Upper and Lower receivers are locked and secured together at 3 points.
First point being by "bayonet fixing" type lugs around the outside of the Upper Receiver and inside the end-cap's ring of the Lower receiver
Assembled / Locked Receiver Bayonet Lugs (stripped for clarity)
Upper Receiver lugs...
Lower Receiver Lugs... (note receiver stripped bare for clarity)
Second point is the spring loaded take down pin that locates in a drilled hole on the underside of the upper receiver tube.
Third point is the slot cut into the back of the magazine well...
NOTE: This shows Lug part way into the Mag' Well slot
NOTE: This shows Lug fully in the Mag' Well slot
To assemble then,
Holding the Lower Receiver with one hand, slide the Upper Receiver back along the Lowers’ body, the Upper Receiver tilted over at an angle like this so that the Rear sights rest against the Lower Receivers’ body
Note Receivers stripped for claritySqueeze the Trigger and keep it down…
Align the "bayonet fixing" type lug of the Upper receiver tube like this...
then slide the Upper Receiver back until it locates in the end of the Upper Receivers’ end cap [  
If not, first try twisting both halves a little until your hear a Click.
If this fails, pull apart and try again…
Step 5. Barrel Assembly
First replace the Sling loop and washer.
Push the barrel tube into the Receiver and begin to thread the barrel nut into place. I find that the nut will just start to tighten well before it’s finally home and at this point twist the barrel tube slowly into correct alignment. Mine clicks when it’s aligned and allows the barrel nut to thread all the way down to tighten.
6. Before going any further, pull the cocking lever back to check it operates properly Squeeze the trigger and check free movement of the bolt within the receiver.
7. Insert the magazine. Note that unless you intend to fire your model gun at this point, ensure the magazine is empty.
Magazine springs will weaken and set coil bound if left under tension for long periods.
8. And finally… Wipe your MP40 down with a soft oily rag to get rid of any excess oil and finger prints. Ref: https://mp40modelguns.forumotion.net/modelgun-stripping-and-rebuild-guides-f12/marushin-mp40-abs-basic-strip-down-and-cleaning-guide-t17.htm Basic StripdownRef: https://mp40modelguns.forumotion.net/modelgun-cleaning-guides-f11/marushin-mp40-abs-basic-clean-lubrication-guide-t38.htm Cleaning & LubricationRef:https://mp40modelguns.forumotion.net/modelgun-cleaning-guides-f11/marushin-mp40-abs-basic-parts-inspection-guide-t39.htm Parts InspectionRef:https://mp40modelguns.forumotion.net/marushin-mp40-f16/marushin-mp40-basic-troubleshooting-guide-t1159.htm Troubleshooting GuideRef:https://mp40modelguns.forumotion.net/beginner-s-guides-tocartridges-f15/cleaning-and-preparing-fired-cartridges-t931.htm Clean'&Prep'ing CartridgesRef:https://mp40modelguns.forumotion.net/beginner-s-guides-tocartridges-f15/loading-marushin-9mm-mp40-uzi-cartridges-t922.htm Loading Marushin MP40 Cartridges
Cerwyn
_________________
Cerwyn
Hobby collector of Replica model guns and Militaria.
also member of Living History Reenactment Groups.
Last edited by Cerwyn on Thu Nov 09, 2017 12:08 pm; edited 12 times in total (Reason for editing : images converted to servimg & text added) | |
|
Cerwyn
Cerwyn (Site Admin)
Number of posts : 11075
Age : 65
Location / Country : North Wales
Registration date : 2008-07-20
| | Subject: Re: Marushin MP40 Basic Reassembly Guide Wed Sep 13, 2017 1:03 pm | |
| Updated. More photos to follow
_________________
Cerwyn
Hobby collector of Replica model guns and Militaria.
also member of Living History Reenactment Groups.
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