Sauer 404 sum mount instructions

pip308

Well-Known Member
Hi all,

I'm after some help please. I have mounted a new scope and obviously not tightened the mount up enough. The quick release is loose one the receiver.
I can't find the instructions or the allen key. If anyone has some instructions could you please photo, also what size allen key. TIA.
 
Is this a Sauer QR, if so they are known to give trouble, there is a Grub screw that may be loose, look closely and you will find it, be careful or it will fall out.

My advice is to get a Pickatnny rail that will fit the Sauer, I did and never looked back.
 
Hi all,

I'm after some help please. I have mounted a new scope and obviously not tightened the mount up enough. The quick release is loose one the receiver.
I can't find the instructions or the allen key. If anyone has some instructions could you please photo, also what size allen key. TIA.
I had a similar issue but the SUM mount is adjustable for each rifle you put it on, you just need two Allen keys and it’s infinitely adjustable. When I have time tomorrow I will post the method to do it which I learned fro Steve at Ivingthorn
 
Is this a Sauer QR, if so they are known to give trouble, there is a Grub screw that may be loose, look closely and you will find it, be careful or it will fall out.

My advice is to get a Pickatnny rail that will fit the Sauer, I did and never looked back.
Yes they are, I have the same mount on my other scope and it's fine. Just requires tightening.
 
Hi all,

I'm after some help please. I have mounted a new scope and obviously not tightened the mount up enough. The quick release is loose one the receiver.
I can't find the instructions or the allen key. If anyone has some instructions could you please photo, also what size allen key. TIA.
Are you still after some instruction with this if so will send you some
 
It is much easier than you think and allows for micro adjustments to ensure the SUM clamps properly. I have taken a photo showing the 2 separate screws on each clamp that you adjust

Look at the picture ( If you open the pic and stretch it you can see the sizes in mm of the drivers) you will see 2 Allen key 1/4 inch drivers attached to the 2 separate screws

First locate the alien screws the small one is 1.5 mm and is on the end of the body of the Sum parallel with the scope/barrel. This screw is the “ clamping screw to do any adjustments you must first undue this one turn

The second Allen screw is 2 mm it is located on the inside face of the clamp, again I have left a 1/4 drive Allen driver attached

Process

First open both the clamps to expose the mechanism

Second, undo a single turn ( anti clockwise) the small 1.5 mm screw situated in a hole at the end of the SUM body

Third, you can now adjust the clamping force by adjusting the larger 2 mm screw shown on the clamp inside body. This is adjusted in degrees of turn so you are only turning it 1/4-1/2 a turn, when you wind it anti clockwise it increases the clamping force and decreases it clockwise. It’s trial and error

When you have adjusted the 2 mm screw to the clamp force you require you then do up the “ locking” 1.5 screw

You then repeat the process on the other clamp. In short the small 1.5 screw simply locks the adjustment in place, the 2 mm screw adjusts the clamping force, you have to undo the lock screw first the you can adjust the clamping force, then lock the 1.5 mm screw up. Any problems come back to me
 

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Hi all,

I'm after some help please. I have mounted a new scope and obviously not tightened the mount up enough. The quick release is loose one the receiver.
I can't find the instructions or the allen key. If anyone has some instructions could you please photo, also what size allen key. TIA.
I have sent through instructions and picture
 
It is much easier than you think and allows for micro adjustments to ensure the SUM clamps properly. I have taken a photo showing the 2 separate screws on each clamp that you adjust

Look at the picture ( If you open the pic and stretch it you can see the sizes in mm of the drivers) you will see 2 Allen key 1/4 inch drivers attached to the 2 separate screws

First locate the alien screws the small one is 1.5 mm and is on the end of the body of the Sum parallel with the scope/barrel. This screw is the “ clamping screw to do any adjustments you must first undue this one turn

The second Allen screw is 2 mm it is located on the inside face of the clamp, again I have left a 1/4 drive Allen driver attached

Process

First open both the clamps to expose the mechanism

Second, undo a single turn ( anti clockwise) the small 1.5 mm screw situated in a hole at the end of the SUM body

Third, you can now adjust the clamping force by adjusting the larger 2 mm screw shown on the clamp inside body. This is adjusted in degrees of turn so you are only turning it 1/4-1/2 a turn, when you wind it anti clockwise it increases the clamping force and decreases it clockwise. It’s trial and error

When you have adjusted the 2 mm screw to the clamp force you require you then do up the “ locking” 1.5 screw

You then repeat the process on the other clamp. In short the small 1.5 screw simply locks the adjustment in place, the 2 mm screw adjusts the clamping force, you have to undo the lock screw first the you can adjust the clamping force, then lock the 1.5 mm screw up. Any problems come back to me
Fantastic help I was struggling with a new set of mounts, now fitting beautifully. Now wondering if my old mounts aren’t as tight as they should be, how much force should be needed to have a good fit?
 
It is much easier than you think and allows for micro adjustments to ensure the SUM clamps properly. I have taken a photo showing the 2 separate screws on each clamp that you adjust

Look at the picture ( If you open the pic and stretch it you can see the sizes in mm of the drivers) you will see 2 Allen key 1/4 inch drivers attached to the 2 separate screws

First locate the alien screws the small one is 1.5 mm and is on the end of the body of the Sum parallel with the scope/barrel. This screw is the “ clamping screw to do any adjustments you must first undue this one turn

The second Allen screw is 2 mm it is located on the inside face of the clamp, again I have left a 1/4 drive Allen driver attached

Process

First open both the clamps to expose the mechanism

Second, undo a single turn ( anti clockwise) the small 1.5 mm screw situated in a hole at the end of the SUM body

Third, you can now adjust the clamping force by adjusting the larger 2 mm screw shown on the clamp inside body. This is adjusted in degrees of turn so you are only turning it 1/4-1/2 a turn, when you wind it anti clockwise it increases the clamping force and decreases it clockwise. It’s trial and error

When you have adjusted the 2 mm screw to the clamp force you require you then do up the “ locking” 1.5 screw

You then repeat the process on the other clamp. In short the small 1.5 screw simply locks the adjustment in place, the 2 mm screw adjusts the clamping force, you have to undo the lock screw first the you can adjust the clamping force, then lock the 1.5 mm screw up. Any problems come back to me

It is much easier than you think and allows for micro adjustments to ensure the SUM clamps properly. I have taken a photo showing the 2 separate screws on each clamp that you adjust

Look at the picture ( If you open the pic and stretch it you can see the sizes in mm of the drivers) you will see 2 Allen key 1/4 inch drivers attached to the 2 separate screws

First locate the alien screws the small one is 1.5 mm and is on the end of the body of the Sum parallel with the scope/barrel. This screw is the “ clamping screw to do any adjustments you must first undue this one turn

The second Allen screw is 2 mm it is located on the inside face of the clamp, again I have left a 1/4 drive Allen driver attached

Process

First open both the clamps to expose the mechanism

Second, undo a single turn ( anti clockwise) the small 1.5 mm screw situated in a hole at the end of the SUM body

Third, you can now adjust the clamping force by adjusting the larger 2 mm screw shown on the clamp inside body. This is adjusted in degrees of turn so you are only turning it 1/4-1/2 a turn, when you wind it anti clockwise it increases the clamping force and decreases it clockwise. It’s trial and error

When you have adjusted the 2 mm screw to the clamp force you require you then do up the “ locking” 1.5 screw

You then repeat the process on the other clamp. In short the small 1.5 screw simply locks the adjustment in place, the 2 mm screw adjusts the clamping force, you have to undo the lock screw first the you can adjust the clamping force, then lock the 1.5 mm screw up. Any problems come back to me
I know this is an older post now but the information is 100% spot on. @Tazz
 
Fantastic help I was struggling with a new set of mounts, now fitting beautifully. Now wondering if my old mounts aren’t as tight as they should be, how much force should be needed to have a good fit?
Once I learned how to adjust them on my new 404 i redid my older 270 as the clamping force didn’t feel right
 
It is much easier than you think and allows for micro adjustments to ensure the SUM clamps properly. I have taken a photo showing the 2 separate screws on each clamp that you adjust

Look at the picture ( If you open the pic and stretch it you can see the sizes in mm of the drivers) you will see 2 Allen key 1/4 inch drivers attached to the 2 separate screws

First locate the alien screws the small one is 1.5 mm and is on the end of the body of the Sum parallel with the scope/barrel. This screw is the “ clamping screw to do any adjustments you must first undue this one turn

The second Allen screw is 2 mm it is located on the inside face of the clamp, again I have left a 1/4 drive Allen driver attached

Process

First open both the clamps to expose the mechanism

Second, undo a single turn ( anti clockwise) the small 1.5 mm screw situated in a hole at the end of the SUM body

Third, you can now adjust the clamping force by adjusting the larger 2 mm screw shown on the clamp inside body. This is adjusted in degrees of turn so you are only turning it 1/4-1/2 a turn, when you wind it anti clockwise it increases the clamping force and decreases it clockwise. It’s trial and error

When you have adjusted the 2 mm screw to the clamp force you require you then do up the “ locking” 1.5 screw

You then repeat the process on the other clamp. In short the small 1.5 screw simply locks the adjustment in place, the 2 mm screw adjusts the clamping force, you have to undo the lock screw first the you can adjust the clamping force, then lock the 1.5 mm screw up. Any problems come back to me
Magic help! Though I did a really **** up… I unscrew the 2mm screw so the entire locking arm fell apart with 2 springs and 2 metal balls, I have no idea where they should be fitted… Can you maby help me?
 
Magic help! Though I did a really **** up… I unscrew the 2mm screw so the entire locking arm fell apart with 2 springs and 2 metal balls, I have no idea where they should be fitted… Can you maby help me?
Unfortunately I can’t be of much help I have only ever adjusted them as per my post and illustration I have never undone it to the degree where the lever mechanism comes apart. The whole adjustment procedure is less than half a turn on both the screws, beyond that I have no knowledge of how it all goes back together. The expert on all things Sauer is Steve at Ivingthorn sporting
 
Magic help! Though I did a really **** up… I unscrew the 2mm screw so the entire locking arm fell apart with 2 springs and 2 metal balls, I have no idea where they should be fitted… Can you maby help me?
Theres a little hole, spring sits in that with the little 2mm ball bearing on the top.

I blue loctited the bolt, tightened to rifle and left untill it set. Stopped it backing off amd got the correct tension every time
 
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