SET TRIGGER ANOMALIES

[towgunner11h]

I was cleaning my CVA Mountain Rifle the other day. Had it on full cock just to scrub around the bolster and nipple area. Then I noticed some dirt behind the rear (set) trigger, and when the GI toothbrush I was using nudged the set trigger forward a tad, the hammer dropped. I was surprised to say the least. Then doubly surprised when I tried it on my T/C Renegade and the same thing happened. Anyone ever encounter this?

 

[ChuckJonesWagon]

When you look at how the set trigger works, it makes perfect sense.

The rear trigger (set trigger) has the pivot point at the rear. So if you don’t have the set trigger “set”, and you push that rear trigger forward, that trigger will “hit” or engage the sear bar. If you have a light sear/tumbler engagement, the hammer will fall.

You may also have some wear on the sear/tumbler engagement that is causing a light sear release.

Put the cock on full cock, and without touching any triggers, push on the back of the hammer. If it releases easy you need to have it looked at. It should be hard to release the hammer by pushing on the back of it.

 

[towgunner11h]

When you look at how the set trigger works, it makes perfect sense.

The rear trigger (set trigger) has the pivot point at the rear. So if you don’t have the set trigger “set”, and you push that rear trigger forward, that trigger will “hit” or engage the sear bar. If you have a light sear/tumbler engagement, the hammer will fall.

You may also have some wear on the sear/tumbler engagement that is causing a light sear release.

Put the cock on full cock, and without touching any triggers, push on the back of the hammer. If it releases easy you need to have it looked at. It should be hard to release the hammer by pushing on the back of it.

Will do. I was astounded when the T/C rifle did it too. And thanks.

 

[towgunner11h]

When you look at how the set trigger works, it makes perfect sense.

The rear trigger (set trigger) has the pivot point at the rear. So if you don’t have the set trigger “set”, and you push that rear trigger forward, that trigger will “hit” or engage the sear bar. If you have a light sear/tumbler engagement, the hammer will fall.

You may also have some wear on the sear/tumbler engagement that is causing a light sear release.

Put the cock on full cock, and without touching any triggers, push on the back of the hammer. If it releases easy you need to have it looked at. It should be hard to release the hammer by pushing on the back of it.

So I put both rifles on full cock, without setting, and pushed hard on both. Neither fired. So I got out a second Renegade and tried it. It will NOT fire when at full cock and pressing forward on the set trigger. I'm going to try re-adjusting the set triggers on the two faulty ones to see if that changes anything.

 

[ChuckJonesWagon]

Go to about the 7:30 time stamp on the video that I've linked. He shows on a T\C what happens when you set the trigger.

If you look at the rear trigger (the set one) it will give you a better understanding of how pushing that trigger forward could cause the hammer to fall. That rear trigger's pivot point is at the back....so when you push the trigger forward, it will contact the sear bar and with a little effort, cause the lock to "work".

 

[towgunner11h]

Go to about the 7:30 time stamp on the video that I've linked. He shows on a T\C what happens when you set the trigger.

If you look at the rear trigger (the set one) it will give you a better understanding of how pushing that trigger forward could cause the hammer to fall. That rear trigger's pivot point is at the back....so when you push the trigger forward, it will contact the sear bar and with a little effort, cause the lock to "work".

Thanks. I just watched that! You hit the nail on the head- it is easy to see the reason it can trip the sear. Upon disassembly of the CVA, it appears the root cause is a common one- trigger group inletted too deep. Easy fix. The Renegade I have not taken apart yet, but the mechanics must be similar. Appreciate the input.