Disassembling and assembling a TX200
by B.B. Pelletier
I’m doing this report for Slinging Lead so he can see what the inside of his TX200 looks like. The work to disassemble and take photos took a total of 30 minutes, so that will be how long a disassembly should take after the first time.
Step 1- remove the action from the stock
First, we’ll remove the action from the stock. If you have a scope mounted, take it off to make this easier. I use a sandbag bench rest to hold the rifle while I’m working on it, but you can rig up something with old rags or towels.
Four screws hold the action in the stock. Remove the two forearm screws first, then flip the rifle on its back and remove the two triggerguard screws. No special order for this. Next, separate the stock from the action.
Step 2- remove the restraining bolt
In this step, you’ll take all the preload tension off the mainspring. The trigger housing will be pushed backward about three-quarters of an inch. This is the step where a mainspring compressor is needed for most spring rifles, but not for the TX200.
Step 3- slide out the piston and you’re done
The next “step” is really just a continuation of what we’ve been doing. The piston is not held in the gun by anything at this point, but I’m showing you how to push it out with a small screwdriver.
One more thing
You can do a mainspring replacement, a lube tune or a piston seal replacement with just this much disassembly. There’s really no need to go any farther. However, the sliding compression chamber will not come out of the gun at this point. One more thing must be done to take it out.
When the link is separated from the underlever, it’s possible to slide the compression chamber to the point at which the cocking link can be disconnected from the sliding chamber. I have not gone that far here and doubt I’ve ever taken the chamber out of this rifle because there’s just no need to.
Please don’t start sending me lists of other airguns you want to disassemble. The TX200 is so simple that I didn’t mind showing it here. Other guns can require four times the work to achieve the same goal. The ironic thing is that the TX is one of the few airguns that ever need to be disassembled in the first place.
Yes, I’m going to tell you to assemble the rifle in reverse order because there simply are no tips needed to put it back together. Naturally, you’ll have to press down on the action to get the bolt hole in the trigger housing to align, but isn’t that obvious? Once you’ve done this job yourself, you’ll agree with me.