Can anyone here tell me how to tighten up the socket that lets the joystick be rotated 360 degrees on a older seb style rest, the part that the joystick attaches to not the 4 tension screws for inside plates.
Thanks Dustin
Thanks Dustin
Original seb adjustment
- Thread starter martin22250
- Start date
ernieemily@yahoo.com
SEB REST MANUAL
TENSION ADJUSTMENTS (September 2008)
CAUTIONS:
1. Do not crash / knock the center shaft (that you attach the joystick into it) since it could cause looseness on the bearings in the inside of the coaxial unit & could make slop / lash in the joystick motion.
It is recommended to store your rest without the joystick attached.
2. Do not apply / add any lubricant into the coaxial unit, and keep the coaxial unit cleans from dirt / debris.
3. Customer disassembly of the coaxial unit could void warranty.
Contact the maker or the dealer, if you find a problem with your rest.
GOOD ADVICE: IF IT IS NOT BROKEN, DON’T FIX IT!
ADJUSTING THE TENSION:
Adjusting tension is done with the 4 (four) allen headed screws located on the outer corner of the rubber boot / joystick stub plate. The tension screws are in metric M6x1.0 (6mm diameter, one full rotation per one millimeter).
The tension screws are basically work to make resistance / pressure on the internal parts, i.e. amongst the “sliding plates” & the “Teflon pressure plate”.
There are 2 (two) “sliding plates" inside of the coaxial unit, one for “X” axis, and one for “Y” axis. These plates are “the heart” of the coaxial mechanism. (No “rocket science” involved here).
The more the tension = the more the friction to resist weight = the more heavier the joystick motion (=normal thing).
Vice versa, the less the tension = the less the friction to resist weight = the lighter / smoother the mechanism.
There should be enough tension / pressure to maintain proper fit & operation of the internal parts. Do NOT turn / tighten the tension screws excessively into the sliding mechanism. A light tensionis usually enough to make tension & to resist vertical force on the rest top.
There are two basic methods to adjust the tension of the SEB rest:
A). By tightening or loosening the 4 (four) tension screws a very bit, without loosening the counter nuts at all.
B). By loosening the counter nuts, turn the tension screws counter clockwise for about 2 full rotations, & set the tension from the very beginning.
Both methods work. Both methods need some of “trial & error”, i.e. to find the best setting / to suit your own liking.
Method A:
Use the metric Allen wrench & ring spanner included in the.
Adjust/turn the tension screw one by one. (You might first need to remove the joystick from the center shaft).
Use the ring spanner to hold the counter nut in place while you turn the tension screw with the allen wrench. Turning the tension screw clockwise (just a very bit, -- think about 1/16 rotation or so) will increase the tension. Turning the screws counter clockwise will decrease the tension.
Adjust / set the tension screws until you find the best setting, then re-tighten the counter nuts to moderate tightness only.
Method B:
We will try to set the tension from the very beginning step.
1. You will need to loosen the 4 (four) tension screws & the counter/jam nuts for about 2-3 full turn, counter clockwise.
2. Then turn the screws clockwise, just with bare hand, so that each end tip of the screws push / make contact with the sliding mechanism inside of the coaxial unit.
To avoid any slob/lash on the rest operation, be sure that the tips of the tension screws make contact with the “slots” on the Teflon pressure plate.
3. Then try to operate the joystick to all directions (up-down-left-right etc), and put some vertical force on the rest top with your other hand (as you see fit to the weight of your rifles), to see how much resistance is there.
4. By feel, adjust the tension by turning each tension screw, clockwise or counter clockwise, until you find the best setting and the most uniform tension.
Normally, each screw needs to push the sliding mechanism in a similar pressure. However, you might probably need to adjust the tension screws in different pressure to find the best setting & uniform feel of the joystick motion.
You may need to make some of trial & error by tightening the upper screws, or the lower screws, or maybe even just one screw, to be more familiar with the tension & the changes. Basically, try to find a uniform tension, determine how much weight you want the rest top to resist, and how smooth the joystick motion. It is about combinations of these things.
The tension of the SEB rest is factory set to accept (at least) 13 lbs vertical weight on the rest top. However, due to temperature difference between Indonesia & your part of the world, the tension might vary/different in your area. Please remember that Teflon sheet can shrink also.
5. Re-tighten the counter nuts again.
You will need to hold the tension screws in place (using the allen wrench), and tighten the counter nuts with the ring spanner.
6. Final adjustment -- Re-check the tension, the joystick motion, & how the rest top resists a vertical force.
Please remember that factory screws & nuts have some slop/lash in them, so you will need to check & probably to adjust the tension screw a bit again.
Once you get the four screws adjusted equally and the feel is almost where you want it, pick a screw (any one screw, your choice of the four screws), one you can remember. Make the final adjustment gently with that one screw only.
While it is true that the four should be as close as possible to the same tension, a final tweak with one screw only will not undo all your efforts at making them the same.
Center Bearings and Shaft
There are two spherical bearings inside the coaxial unit, one at “front”, and one at “rear”. You would be able to see these bearings if you disassembly the “rubber boots”. (You would need metric allen wrench that match to the M5x0.8 screws that hold the oval shaped s/s plate & rubber boots in place).
The “front” bearing is press fitted & steel epoxy glued into the “front slot” of the coaxial unit. The “rear” bearing is press fitted & epoxy glued into the slot of the “rear sliding plate”.
The center shaft is steel epoxy glued into the “front” bearing.
The resistance in the vertical motion of the Seb Rest is normally heavier than the horizontal. I usually drip/punch (stake) the brass liner of the bearings at 6 & 12 o'clock position - using a tiny & sharp punch, right between the conjunction of the brass liner and the outer housing of the bearings. It makes the bearings to be tighter and makes the joystick to have more “solid feel" (no lash/slob) & smoother in operation.
You might be able to see / find some “spots” on the bearings if you clean the grease around the bearing, or use a small flash light to find them. (Avoid the grease to interfere with the teflon sheet on the pressure plate).
You can (or allowed to) re-punch the spots if you find the bearings loose in the future. Use athin/sharp punch & medium size hammer only. Do not re-punch the spots too hard, just enough until there is no slob in the bearings. However, it is recommended to first contact the maker before you would like to do anything on your rest!
Additional “jam screws” on the newer (2008) production rests.
I add 2 (two) “jam screws” - to tighten the bearings mechanism - located at 6 (six) o’clock position under the bearings. These screws are in metric M6x1.0, headless. (Use a metric 3mm allen wrench to adjust).
You would be able to see / adjust the front jam screw if you slide off the coaxial unit from the twin posts. The front jam screw is located under the “front” bearing (on the bottom of the “front part” of the coaxial unit).
You would be able to see / adjust the rear jam screw if you disassembly the cover bottom plate. The rear jam screw is located under the rear bearing (on the bottom of the “rear sliding plate”).
On the new 2008 production rests, the screws on the cover bottom plate (metric M4x.07) are not epoxy glued anymore.
You would also be able to remove the “pressure plate” in the inside of the coaxial unit, and clean it if you wish to.
(Be sure that the tip of the tension screws make contact with the “slots” on the pressure plate when you re-assembly it. This is important to avoid any slob in the rest motion).
Turn clockwise the jam screw will tighten the bearing. Turn counter clockwise will loosen the bearing.
Adjusting the front jam screw only is recommended, and it might be easier for you than adjusting the 4 tension screws (= as long as the tension screws are set properly – i.e. not to tight, not too loose). Adjusting the rear jam screw would be not needed, as it is factory set already.
Please note that your SEB coaxial rest can be used in “Two Ways” -- You can use the SEB rest so that the rest top moves in the same direction with the joystick (joystick up rest top/reticle moves up, joystick to the left rest top/reticle moves to the left, etc), OR in the opposite direction (joystick up rest top/reticle moves down, joystick to the left rest top/reticle moves to the right, etc), simply by attaching the joystick on the opposite side of the center shaft and interchanging the “horizontal bars” of the rest top that hold the forend stopper & bubble level.
Changing configuration can be done in two or so minutes. (That’s easy & fast!). The only tool needed is the allen wrench included in the package, i.e. to disassembly/assembly the screws that hold the “horizontal bars” of the rest top.
(That is why I add (“…”) for every word of “front” and “rear” (with “…”) on the above. It is depend on how/which direction you set your SEB rest!
This unique feature is the only one in the world!
With this feature, you can add a “counter balance weight” on the opposite side of the center shaft that you attach the joystick into it. Using a proportional weight & size of a counter balance weight, your SEB rest can be used for (can hold) Heavy Guns of 50 lbs, or more, with effortless joystick operation just about the same with the standard LV/HV rifles.
The counter balance weight system is available on request / as optional item. It is made from S/S rod, turned to desired weight & size, with two jam screws. It is adjustable for Heavy Guns, and fixed for LV/HV class rifle.
For more information about this counter balance weight system, please contact me at visi@telkom.net or sebastianlambang@yahoo.com
Please feel free to contact me if you have any questions, or problem, with your SEB rest!
Kind Regards,
Sebastian (seb) Lambang. www.sebcoax.com
Ernie Bishop
306 West Flying Circle Drive
Gillette, WY 82716
SEB REST MANUAL
TENSION ADJUSTMENTS (September 2008)
CAUTIONS:
1. Do not crash / knock the center shaft (that you attach the joystick into it) since it could cause looseness on the bearings in the inside of the coaxial unit & could make slop / lash in the joystick motion.
It is recommended to store your rest without the joystick attached.
2. Do not apply / add any lubricant into the coaxial unit, and keep the coaxial unit cleans from dirt / debris.
3. Customer disassembly of the coaxial unit could void warranty.
Contact the maker or the dealer, if you find a problem with your rest.
GOOD ADVICE: IF IT IS NOT BROKEN, DON’T FIX IT!
ADJUSTING THE TENSION:
Adjusting tension is done with the 4 (four) allen headed screws located on the outer corner of the rubber boot / joystick stub plate. The tension screws are in metric M6x1.0 (6mm diameter, one full rotation per one millimeter).
The tension screws are basically work to make resistance / pressure on the internal parts, i.e. amongst the “sliding plates” & the “Teflon pressure plate”.
There are 2 (two) “sliding plates" inside of the coaxial unit, one for “X” axis, and one for “Y” axis. These plates are “the heart” of the coaxial mechanism. (No “rocket science” involved here).
The more the tension = the more the friction to resist weight = the more heavier the joystick motion (=normal thing).
Vice versa, the less the tension = the less the friction to resist weight = the lighter / smoother the mechanism.
There should be enough tension / pressure to maintain proper fit & operation of the internal parts. Do NOT turn / tighten the tension screws excessively into the sliding mechanism. A light tensionis usually enough to make tension & to resist vertical force on the rest top.
There are two basic methods to adjust the tension of the SEB rest:
A). By tightening or loosening the 4 (four) tension screws a very bit, without loosening the counter nuts at all.
B). By loosening the counter nuts, turn the tension screws counter clockwise for about 2 full rotations, & set the tension from the very beginning.
Both methods work. Both methods need some of “trial & error”, i.e. to find the best setting / to suit your own liking.
Method A:
Use the metric Allen wrench & ring spanner included in the.
Adjust/turn the tension screw one by one. (You might first need to remove the joystick from the center shaft).
Use the ring spanner to hold the counter nut in place while you turn the tension screw with the allen wrench. Turning the tension screw clockwise (just a very bit, -- think about 1/16 rotation or so) will increase the tension. Turning the screws counter clockwise will decrease the tension.
Adjust / set the tension screws until you find the best setting, then re-tighten the counter nuts to moderate tightness only.
Method B:
We will try to set the tension from the very beginning step.
1. You will need to loosen the 4 (four) tension screws & the counter/jam nuts for about 2-3 full turn, counter clockwise.
2. Then turn the screws clockwise, just with bare hand, so that each end tip of the screws push / make contact with the sliding mechanism inside of the coaxial unit.
To avoid any slob/lash on the rest operation, be sure that the tips of the tension screws make contact with the “slots” on the Teflon pressure plate.
3. Then try to operate the joystick to all directions (up-down-left-right etc), and put some vertical force on the rest top with your other hand (as you see fit to the weight of your rifles), to see how much resistance is there.
4. By feel, adjust the tension by turning each tension screw, clockwise or counter clockwise, until you find the best setting and the most uniform tension.
Normally, each screw needs to push the sliding mechanism in a similar pressure. However, you might probably need to adjust the tension screws in different pressure to find the best setting & uniform feel of the joystick motion.
You may need to make some of trial & error by tightening the upper screws, or the lower screws, or maybe even just one screw, to be more familiar with the tension & the changes. Basically, try to find a uniform tension, determine how much weight you want the rest top to resist, and how smooth the joystick motion. It is about combinations of these things.
The tension of the SEB rest is factory set to accept (at least) 13 lbs vertical weight on the rest top. However, due to temperature difference between Indonesia & your part of the world, the tension might vary/different in your area. Please remember that Teflon sheet can shrink also.
5. Re-tighten the counter nuts again.
You will need to hold the tension screws in place (using the allen wrench), and tighten the counter nuts with the ring spanner.
6. Final adjustment -- Re-check the tension, the joystick motion, & how the rest top resists a vertical force.
Please remember that factory screws & nuts have some slop/lash in them, so you will need to check & probably to adjust the tension screw a bit again.
Once you get the four screws adjusted equally and the feel is almost where you want it, pick a screw (any one screw, your choice of the four screws), one you can remember. Make the final adjustment gently with that one screw only.
While it is true that the four should be as close as possible to the same tension, a final tweak with one screw only will not undo all your efforts at making them the same.
Center Bearings and Shaft
There are two spherical bearings inside the coaxial unit, one at “front”, and one at “rear”. You would be able to see these bearings if you disassembly the “rubber boots”. (You would need metric allen wrench that match to the M5x0.8 screws that hold the oval shaped s/s plate & rubber boots in place).
The “front” bearing is press fitted & steel epoxy glued into the “front slot” of the coaxial unit. The “rear” bearing is press fitted & epoxy glued into the slot of the “rear sliding plate”.
The center shaft is steel epoxy glued into the “front” bearing.
The resistance in the vertical motion of the Seb Rest is normally heavier than the horizontal. I usually drip/punch (stake) the brass liner of the bearings at 6 & 12 o'clock position - using a tiny & sharp punch, right between the conjunction of the brass liner and the outer housing of the bearings. It makes the bearings to be tighter and makes the joystick to have more “solid feel" (no lash/slob) & smoother in operation.
You might be able to see / find some “spots” on the bearings if you clean the grease around the bearing, or use a small flash light to find them. (Avoid the grease to interfere with the teflon sheet on the pressure plate).
You can (or allowed to) re-punch the spots if you find the bearings loose in the future. Use athin/sharp punch & medium size hammer only. Do not re-punch the spots too hard, just enough until there is no slob in the bearings. However, it is recommended to first contact the maker before you would like to do anything on your rest!
Additional “jam screws” on the newer (2008) production rests.
I add 2 (two) “jam screws” - to tighten the bearings mechanism - located at 6 (six) o’clock position under the bearings. These screws are in metric M6x1.0, headless. (Use a metric 3mm allen wrench to adjust).
You would be able to see / adjust the front jam screw if you slide off the coaxial unit from the twin posts. The front jam screw is located under the “front” bearing (on the bottom of the “front part” of the coaxial unit).
You would be able to see / adjust the rear jam screw if you disassembly the cover bottom plate. The rear jam screw is located under the rear bearing (on the bottom of the “rear sliding plate”).
On the new 2008 production rests, the screws on the cover bottom plate (metric M4x.07) are not epoxy glued anymore.
You would also be able to remove the “pressure plate” in the inside of the coaxial unit, and clean it if you wish to.
(Be sure that the tip of the tension screws make contact with the “slots” on the pressure plate when you re-assembly it. This is important to avoid any slob in the rest motion).
Turn clockwise the jam screw will tighten the bearing. Turn counter clockwise will loosen the bearing.
Adjusting the front jam screw only is recommended, and it might be easier for you than adjusting the 4 tension screws (= as long as the tension screws are set properly – i.e. not to tight, not too loose). Adjusting the rear jam screw would be not needed, as it is factory set already.
Please note that your SEB coaxial rest can be used in “Two Ways” -- You can use the SEB rest so that the rest top moves in the same direction with the joystick (joystick up rest top/reticle moves up, joystick to the left rest top/reticle moves to the left, etc), OR in the opposite direction (joystick up rest top/reticle moves down, joystick to the left rest top/reticle moves to the right, etc), simply by attaching the joystick on the opposite side of the center shaft and interchanging the “horizontal bars” of the rest top that hold the forend stopper & bubble level.
Changing configuration can be done in two or so minutes. (That’s easy & fast!). The only tool needed is the allen wrench included in the package, i.e. to disassembly/assembly the screws that hold the “horizontal bars” of the rest top.
(That is why I add (“…”) for every word of “front” and “rear” (with “…”) on the above. It is depend on how/which direction you set your SEB rest!
This unique feature is the only one in the world!
With this feature, you can add a “counter balance weight” on the opposite side of the center shaft that you attach the joystick into it. Using a proportional weight & size of a counter balance weight, your SEB rest can be used for (can hold) Heavy Guns of 50 lbs, or more, with effortless joystick operation just about the same with the standard LV/HV rifles.
The counter balance weight system is available on request / as optional item. It is made from S/S rod, turned to desired weight & size, with two jam screws. It is adjustable for Heavy Guns, and fixed for LV/HV class rifle.
For more information about this counter balance weight system, please contact me at visi@telkom.net or sebastianlambang@yahoo.com
Please feel free to contact me if you have any questions, or problem, with your SEB rest!
Kind Regards,
Sebastian (seb) Lambang. www.sebcoax.com
Ernie Bishop
306 West Flying Circle Drive
Gillette, WY 82716
Thanks for the instructions, I found them through Google, but I'm scared to mess with it cause I don't really know what I'm doing, it's not to bad but I'd like it to be just a smidge tighter
I might do that, I do have a lathe, when I start out using it I have the bend to the right and after a couple targets the bend is facing down.
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