The rod is designed to keep the fingerboard playing surface in the proper plane. A truss rod is placed in the neck, beneath the fingerboard and helps strength the neck and resist the pull of the strings. Note: We changed Mandolin truss rods from single action which would use a 5/16” inch hex nut driver for truss rod adjustment, to double action truss rods which use the 1/8” allen wrench for adjustment (changed overall September, 2006). A maxed out truss rod is quite a dilemma. Hi, wasn't sure where to put this, please feel free to relocate this Lefty if you need to. Most mandolin truss rods are accessible beneath a small cover found on the peghead. MEMBERSHIP IS NOW AVAILABLE IN HUNGARY! Sand the top of the neck flat and cut a slot 3/16" wide and 7/16" deep, down the middle of … FREE Shipping with StewMAX is now available! Last year I got my Dad an Eastman mandolin, forget the exact model, can get the details if required. When dry, sand the top of the neck flush again, and install the fingerboard and peghead overlay. If some one had not told you about it, you would not know it was there. The truss rod should be installed before the fingerboard is glued onto the neck. Use a table saw or a router. Glue them in place and clamp while drying. Widen the slot cylindrically at the peghead, to form a 1/2"-diameter channel. Last time I turned it clockwise (tightened) and I'm wondering if I made a mistake. A little truss rod adjustment goes a long way, as you can see by measuring your string height before and after with a string action gauge. Locate the truss rod so that the adjusting nut and washer, and the fixed "barrel" anchor nut, are at the locations shown in the diagram. If you continue without changing your settings, you're agreeing to receive all cookies on the StewMac website. Build the pedal that redefined overdrive. Hi, wasn't sure where to put this, please feel free to relocate this Lefty if you need to. Mandolin Cafe Forum > Instruments and Equipment > Builders and Repair > Truss Rod Adjustment - Gibson A-5L. Wrap a bit of masking tape around the center of the rod to prevent rattling. Drill a 3/8"-diameter hole, 5/8" deep for the barrel anchor nut. 5. You can also use the string as a straightedge. Sept 23, 2009 21:03:09 GMT -7 . 3. 1/4 of a turn can have quite an effect on some necks. Most mandolin truss rods are accessible beneath a small cover found on the peghead. Mid-Mo is noted for having good quality control and producing the best mandolin at that price range. 6. • No matter how many orders you place. On some instruments 1/4 of a turn could have quite an effect on the relief. When dry, sand the top of the neck flush again, and install the fingerboard and peghead overlay. The screw driver style won't fit because of the thickness of the socket and the straightness of the shaft. T Some mandolin necks may require the adjusting nut closer to the string nut, for proper placement of the plastic truss rod cover. Most mandolins will play cleanly with a near dead flat neck. All larger body mandolin family instruments have used the double action truss rods for many years. Jun-04-2017, 1:07pm . In general, very light gauge strings may require additional relief due to their wider vibration pattern which may permit them to hit the frets and buzz when strummed hard. The action seemed high and the bridge also looked high. Sand the top of the neck flat and cut a slot 3/16" wide and 7/16" deep, down the middle of the full length of the top of the neck. Black Friday Sale! Some mandolin necks may require the adjusting nut closer to the string nut, for proper placement of the plastic truss rod cover. Some have continued tightening an unresponsive rod only to end in with a pop and a tear. I-0781 1. Prepare filler sticks of matching wood to cover the truss rod and the slot beyond the anchor nut. If, however, the neck shows itself to be weak and spongy, satisfactory results may not be obtainable using that method. Select Post; Deselect Post; Link to Post; Back to Top; Post by mody on Sept 23, 2009 21:03:09 GMT -7. Don't get glue on the rod or the threads. When a truss rod is loosened it is allowing the string tension to pull the neck upward (into a bow). Tightening the truss rod nut counteracts the pull of the strings, straightening the neck. When I tried to bring the action down there was a lot of buzzing on the G … 1. Fender's most popular pick shape in different materials. The filler sticks should fit snugly but should not be forced in too tightly. Mid-Mo is noted for having good quality control and producing the best mandolin at that price range. A broken truss rod is usually an expensive repair and only considered on value instruments as it requires fingerboard removal (replacement in some cases) and refretting. Most mandolins will have some way to adjust your action at the bridge. If some one had not told you about it, you would not know it was there. Some mandolins many never budge and others may require frequent adjustments until the neck settles in. If you see that no changes are occurring when tightening the truss rod and it becomes difficult to turn it is time to stop! Turning the truss rod clockwise, the rod will once again feel loosest at the center of it's run, but if you just keep going in a clockwise direction, it begins to require more pressure to turn and eventually does add tension to the rod, which reduces neck relief. As the tension from the strings strive to pull the neck upward, into a bowed shape, the truss rod is used to exert tension in the opposite direction.