Könnte eventuell sehr hilfreich sein und "Adjustmentängste" nehmen !!!
Allerdings hab ich noch nie im "ge- tunedem" Zustand einen Spannstab "ge- tightened", höchstens "ge - loosened" ...
aber mehr unter folgendem link :
http://www.joeysbassnotes.com/Rick_maint.htm#tra
TRUSS ROD ADJUSTMENT (for neck relief)
Rickenbacker instruments intonate and play best when the neck is as straight as possible. I have gotten quite a few emails from Rickenbacker bass owners who are not comfortable to yet do their own set up, telling me that a certain guitar repairman insists that a Rick bass neck should have relief just like any other bass guitar. If a guitar repairman tells you this, then it should immediately tell you that this guitar repairman has little or no knowledge and experience setting up or repairing Rickenbacker basses. Take your Rick elsewhere.
To tell if the neck of your Rickenbacker bass needs an adjustment, hold your bass in your lap, just like you are going to play it. Laying the bass down whether the neck is supported or not changes the relief somewhat, so you what to check the neck relief just like to are going to play your bass. Then using the tuned strings as a straight edge, fret the first with the index of the your fretting hand or get a guitar capo and capo the strings at the first fret. Holding the string down at the last fret with your other hand, you should be able to slide a piece of loose-leaf paper between the string and the 9th fret, with the string moving just a little. Or you can hold the string down with your first finger on your left hand and hold the string down at the last fret with your other hand. With your pinky on your left hand go to the furthest fret you can reach with it and tap down on the string. It shouldn't move much, just enough to hardly hear a tiny plink noise. The plink sound should be softer and less audible than you would hear from other bass guitars, since other bass guitars should have a little relief in the neck. If there was no sound at all, your neck might have a back bow. Do this with the E and G strings. If it's a five string Rickenbacker bass, use the B and G strings.
If a truss rod nut is stuck and won't turn due to corrosion, it must first be treated with a penetrating oil, like WD-40 or better yet, if you can find a product called Corrosion-Cracker. Apply one of these products sparingly (a drop or two at most) on the threads at the opening of the nut, using a needle bottle or the tip of a toothpick. You do not want to get any these products on the finish of you bass, so put a towel around the areas that you might accidentally get some on. After you've applied about a drop or so to the threads on the truss rod(s), wait a while for the product to penetrate. Then gently try to loosen the affected nut (turn counterclockwise). Do not try to tighten! There is still always the chance that you may break the truss rod. If you break a truss rod, new truss rods for 4003 and 4004 basses can be purchased from Rickenbacker. Broken 4001 rods would have to be repaired or depending on the break, new ones would have to be made by a luthier who knows how to make a 4001 truss rod.
Truss rod adjustments of all Rickenbacker basses should be done with the strings in tune.
The truss rods of 3000, 3001, 4000, 4001, 4003 (pre Sept '84), 4001S, 4002 and 4005 models adjust differently than the truss rods of 4003 (starting Sept '84), 4003S, 4003S/5, 4003S/8, 4004C, 4004Cii, 4004L, 4001V63, 4001C64 and 2000 series basses.
3000, 3001, 4000, 4001, 4001S, 4002, pre Sept '84 4003 and 4005 bass guitars:
The difference between adjusting a truss rod on one of these basses and other basses, is that the necks of these basses must be manually moved to the desired position and then the adjustment nuts are tightened (turned clockwise). If you have detuned any strings to remove the truss rod cover, retune the strings before adjusting the truss rods. You will need a straight thin walled 1/4" nut driver that will fit in the area of the truss rod adjustment nuts. You can get the tool from Rickenbacker if you desire or you can get one at a hardware store. Do not use a nut driver with a "T" handle nor should you attach a ratchet type handle, as these will allow you to use too much strength when you turn the nuts and possibly break the truss rods.
You might need the assistance of someone else to hold the bass guitar down on a workbench to do this procedure or you can clamp the body of the bass to a workbench or table with a towel and use a clamp with rubber jaws and other soft material that you can put between the bass and the jaws of the clamp as well as on the workbench or table.
Old Style Truss Rod Adjustment Procedure:
- With the strings in tune, clamp the body to a padded workbench or table.
- Loosen the truss rod adjustment nuts enough so are just a small distance from the bearing plate(metal plate behind the nuts).
- Tighten the nuts so that they are just touching the bearing plate.
- Pull back on the neck straight by the top of the neck with one hand, with enough strength to make the strings completely contact the fingerboard.
- Tighten both nuts as you hold the neck like this.
- After you tighten down the nuts, you then let go of the neck.
- Tighten the nuts very snug, using only the strength of your hand, not your whole arm.
Another method is to have the neck clamped with a 2"x 4" with adding smaller blocks of wood in between the fingerboard and the 2" x 4" and a cushiony material like cork in between the blocks and the fingerboard, or you might just find suitable blocks of cork to put in between the 2" x 4". Then loosen/tighten the truss rod nuts as I explain in the previous method.
I will provide pictures of this technique soon. Some guys are comfortable with supporting the body between their legs while they do this procedure. I find that cumbersome. Some have been known to just support the neck just below the headstock on their leg, as they hold it by the headstock with one hand, letting the body hang free as they tighten down the truss rod adjustment nuts with the other hand (known as the "Quick and Dirty" method). Never try to tighten the nuts with more than the strength in your hand. If you use the strength of your arm to tighten them, you might break the truss rods. Never adjust the truss rod nuts of a 4000, 4001 or 4002 without following one of these procedures or the fingerboard might pop off the neck, sending you with your bass to a luthier to set the fingerboard on again. Never force an adjustment nut to turn. It might be stuck due to corrosion, or it may already be at the end of it's traveling distance of the threads on the truss rod.
Forcing the nut to turn can break a truss rod and or pop the fingerboard off the neck. If you have never done any of these procedures, take your time and be very careful. It may take you more than one time to get the neck adjusted the way you want it.
4003 & 4003S (from Sept '84 to present), 4003S/5, S/8, 4001V63, 4001C64, 4004 & 2000 series:
The truss rods these models adjust like any other bass guitar except just like the 4001, there are 2 truss rods for more accurate adjustments. It is not necessary to manually hold the necks of the 4003, 4004 or 2000 series models while adjusting their truss rods. You might only have to adjust one truss rod or one needs to be adjusted less than the other. The 4003 basses in the first production years (approximately '79 to '85) had the truss rod adjustment at the body end of the neck. You can tell these from the newer 4003 basses, since the ones that have the truss rod adjustments at the body end have a two piece pickguard.
To access the truss rod adjustments on the early 4003 basses, you must remove the part of the pickguard that is closer to the neck. 4003 basses from about '85 to present have the truss rod adjustments under the truss rod cover. If you have loosened any strings to remove the cover, retune the strings before making any truss rod adjustments. Turning the truss rod adjustment to the right (clockwise) reduces forward bow, no matter which end of the neck the adjustment is located. Turning the truss rod adjustment to the left (counter clockwise) reduces back bow, no matter which end of the neck the adjustment is located.
The truss rod adjustments should never exceed more than 1/8 turn at once. After making the first 1/8 turn adjustment, wait about a day to see if the truss rods need to be further adjusted. Give the rod(s) a chance to set the neck relief. If you feel that the truss rod(s) need to be further adjusted, make a second 1/8 turn adjustment on the following day. It might take two or three days to get your neck to the proper adjustment.
Never force the adjustment nuts to turn. Use only the strength of your fingers, not your arm. If you can't turn the nut, it might be stuck due to corrosion or it may already be at the end of it's traveling distance on the threads of the truss rod. Forcing it can break the truss rod and /or pop the fingerboard off the neck.