To a point where it is hard to play if you can imagine it. OR. This is how it is written in the Gibson Les Paul manual. No Brand Selected. Which is handy if you've got a naturally back bowed neck and the strings can't pull it straigh, the truss rod … U The I bought a new Masterbilt AJ 45me from Sweetwater which arrived last Friday. Epiphone Masterbilt EF-500R. It's almost certainly a dual action truss rod which means it'll go slack when you get to the middle settings then tighten up again as you keep going. Find the right Truss Rod Wrench size needed in a database of over 75 guitar and bass brands including Fender, PRS, Gibson, Martin, Ibanez, Taylor, Jackson, Takamine, Schecter, Yamaha, Breedlove and many more. I bought it new and it was essentially flat, so I had to back off the truss rod nut a little every few days until I got some daylight under the strings. BUT...I changed strings today to a heavier gauge so I needed to adjust truss rod. uhhh any ideas where it is? 2-ply truss rod cover with "Masterbilt" engraving 14" fingerboard radius 25.5” scale 1.75” nut width Binding: 7-ply body binding Multi-ply 3-ring rosette Hardware: Nickel hardware Rosewood non-belly bridge Bone nut & saddle 18:1 Grover Sta-Tite tuners Small tortoise pickguard Colors: Natural (NA) satin Masterbilt EF-500R. Improve this article for others! When I removed cover I discovered that the edges of the truss rod access look like the "craftsman" cut it with a hammer and pliers. so i need to make an adjustment....and i cant find the ****ing screw inside the guitar. Truss Rod Adjustments. I am currently measuring the gap at the 9th fret, while keeping the string held down at the 1st and 14th. I have been playing it and noticed that the action is high. Leave a comment about your experience adjusting your truss rod, and include your own tips. Counter clockwise reduces back bow / adds front bow. Hello, I need some acoustic maintenance instructions. To reduce the amount of relief and make your guitar a little easier to play, you’ll want to tighten the truss rod or turn the truss rod nut clockwise. But there is no such truss rod adjustment advice in the Epiphone ES-339 manual. When adjusting your neck, remember these tips! FOOTNOTES. To add relief to the neck, you’ll want to loosen the truss rod or turn the truss rod nut counter-clockwise. Correcting Upbow. I just got an older D-500M Masterbilt. Choose your model. First new guitar I've ever owned and I love it! Search Instrument Manufacturer/Brand. Correcting Backbow. Epiphone Masterbilt EF-500R. I went to.my local Guitar Center and played a new Masterbilt …