Gilbert Tuning Machines
Instructions and Care
The recommended drill bit for the roller holes is 13/32" (.406" or 10.3mm) diameter. Hole spacing is 35mm (1.378") for the "Traditional" model (3 to a plate). Minimum hole spacing for the individual units is 34.4mm (1.354"). To assure the squareness of the holes to the mounting surface we recommend the use of a drill guide or jig. The full diameter of the roller holes must be 1 7/32" (1.219" or 31mm) deep. The recommended pilot drill for the mounting screw holes is 1/16" (.062" or 1.6mm) diameter. The mounting screw holes should be 1/4" (.250" or 6.35mm) deep.
About three times per year, apply a small amount of vaseline or light grease to the worm thread and gear teeth. It is not necessary to lubricate the bearings.
To adjust the tuners, use the following procedure:
Gilbert tuners are guaranteed against defects in materials or workmanship for a five(5) year period. If a problem should ever arise, please contact us at the address or telephone below.
1485 La Honda Rd.
Woodside, CA 94062
(650) 851-3284 FAX