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Let me add a few more things here gentlemen:
As this rest is originally designed for benchrest shooting, with very minimal recoil/twist of the rifle, etc, both set screws shown with red and white arrow were (or should be) set in very minimum tension. This to allow more smoother and extra light joystick operation.
It needs a Very Fine adjustment to make it work ideally/properly.
Just a little tweak off (imagine as one or two clicks on your rifle scope) and it will make a noticeable difference on the smoothness / operation of the joystick.
The one in the middle with red arrow is only to keep the second bearing in place, and only to allow the inner ball to move "almost freely".
The one in the front center with white arrow is to give a rotational resistance on the front inner ball bearing and the center shaft, to not rotate freely on its axis (because the joystick is bent, not straight) it must give enough rotational resistance, to not twist by the weight of the rifle when you move the joystick up&down, with the counterweight in place. Or just a little bit more tension.
Only teflon spray recommended to lube the front bearing and the post regularly (say per season). No grease.
We use this: https://www.soft99.co.jp/en/products/detail/03113/
Good stuff.
We use this teflon lube for the sliding parts and the teflon sheet inside, too.
We use a mix of this lube and Lucas red&tacky #2 grease (1:1) to lube the pins and grooves inside and some other parts.
Only for info. Most likely you don't have to lube the internal if you always keep your rest clean anytime.
As this rest is originally designed for benchrest shooting, with very minimal recoil/twist of the rifle, etc, both set screws shown with red and white arrow were (or should be) set in very minimum tension. This to allow more smoother and extra light joystick operation.
It needs a Very Fine adjustment to make it work ideally/properly.
Just a little tweak off (imagine as one or two clicks on your rifle scope) and it will make a noticeable difference on the smoothness / operation of the joystick.
The one in the middle with red arrow is only to keep the second bearing in place, and only to allow the inner ball to move "almost freely".
The one in the front center with white arrow is to give a rotational resistance on the front inner ball bearing and the center shaft, to not rotate freely on its axis (because the joystick is bent, not straight) it must give enough rotational resistance, to not twist by the weight of the rifle when you move the joystick up&down, with the counterweight in place. Or just a little bit more tension.
Only teflon spray recommended to lube the front bearing and the post regularly (say per season). No grease.
We use this: https://www.soft99.co.jp/en/products/detail/03113/
Good stuff.
We use this teflon lube for the sliding parts and the teflon sheet inside, too.
We use a mix of this lube and Lucas red&tacky #2 grease (1:1) to lube the pins and grooves inside and some other parts.
Only for info. Most likely you don't have to lube the internal if you always keep your rest clean anytime.