Keepandbeararms:
Below is a copy of disassembly instructions that I copied from a thread in Rimfire sometime back. I can't vouch for it's accuracy so move slowly and carefully. I have six Henrys now and have never had occasion to tear one down. The furthest that I have ever gone down that road was to remove the receiver cover on my Henry pump in order to dislodge a jammed bullet. According to Henry, the rifles shouldn't need to be torn down and quite frankly, I tend to agree with them.
Good luck.
Old Blue
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Henry Lever Tune Up and Repair.
Here is the diagram in case you do not have your manual handy. Thanks to BigLoop22 for the diagram!
Check and ensure your rifle is unloaded.
During disassembly pay attention to where things are, you will need to put them back in the same manner.
Ok, now before getting started: Check and ensure your rifle is unloaded!!
1) Take of the Front Sight Hood (33).
2) Unscrew the Barrel Band Screw (30) and slide up and off of the barrel/mag tube assembly and then gently pull the Forend (52) forward and off.
3) Unscrew the Stock Screw (50) and gently pull the Buttstock assembly down and off.
4) Unscrew all 4 Cover screws (42) and carefully work the receiver (01) up, back and off of the Carrier Axle.
5) If the Bolt (35) did not come off with the cover, remove it now by working the lever all the way down and leave it down. Even if the bolt is off already work the lever down anyhow to ensure the hammer is locked back and leave the lever down.
6) Remove Lever Pin (15) and carefully work out lever (14)
7) While holding the Lock Bar (16) in place, remove Locking Bar pin (18), then remove Lock Bar (16) and Locking Bar Spring (17).
8) While holding Hammer (21) press trigger (19) and slowly allow hammer to go as far forward as possible.
9) Slide up and remove Hammer Guide (23) and Hammer Spring (24)
10) Remove Hammer Pin (22) and then gently slide out the Hammer (21)
11) Remove Trigger pin, Trigger (19) and Trigger Spring (20)
-Now focus on the Bolt-
A) At this point with the bolt you can remove the pins to clean or replace the extractor and ejector as well as their respective springs.
B) At this point I removed all the pins and polished everything before reassembling the bolt.
Now that everything is completely apart polish all of the following pieces until they are shiny (do not change the angles though):
- entire bolt (you only have to do the parts of the bolt that make contact with the Carrier Axle, but I do the whole thing because it looks cool shiny)
- the portions of the carrier axle that the bolt rides on.
- the portion of the receiver which the bolt (may) contact when sliding through.
- the portions of the lever that (may) contact other parts.
- the portions of the lever which rotate on other metal.
- the portions of the trigger which rotate on other metal.
- the portions of trigger that engage with the hammer.
- the hammer guide ball.
- the portions of the hammer which make contact with the trigger (I also reduced this engagement just a teeny bit, but I don't recommend that if this is your first time doing things like this).
I have done the following with 100% success on 4 Henry's now:
A) reduce the locking bar spring by 1.5 coils and stretched back out to correct size. (I used a set of outside calipers, I set them to correct size when the spring was stock).
B) reduced the trigger return spring by 3.5 coils and then stretched it back out to the correct size.
Lightly lube all components and then re-assemble by doing steps 1 through 11 in the opposite order.
Your lever should now be as smooth as silk and your trigger should be about a crisp 1lb
I should probably write up all the minor issues I have had with it over the time it took to get to where it is, it might be useful for someone or other... so let's see...
1)Front site hood went Bye Bye - I always lose these things, I have a bunch of Henry's and now any that get scoped I take the hood off and save it so I actually have some that way.
2) Around 70K rounds (wild guess there) Spring 17 got weak and the lever did not lock in the closed mode any more - I am sure this is due to the mod I make to the spring rather than any design flaw, but when you get the lever as smooth as mine is the huge click to lock in place is out of place, so I make the mod. (I will update my page with this I guess)
3) The receiver of this is not blued, glossy black paint from a model shop works perfect to fix it right back up though when it gets too scratched- and it will - however I really like my textured paint I used which is hard as a rock, wish I still had the recipe I used to make that paint I tried to make something like the touch up paint for my large gun safe, maybe I will experiment with that next.
4) Twice I tried an idea I had and modified the carrier/carrier group, the best I can say after my expirements is: "don't do that"

I buggered it both times.
Well, enough talk, I'm going shooting
Alright Then.
Updated on ... January 29, 2005