Section III. OPERATOR MAINTENACE PROCEDURES
This section contains information on the adjustment of the various items that are maintainable at the
3-10. DRIVE BELT ADJUST AND REPLACE.
This task consists of:
(a) Drive Belt Adjustment
(b) Drive Belt Replacement
Electrical power removed (para. 2-18).
Sewing Tables Set-Up and Machines Installed
(1) Belt Tightening.
(a) Loosen lower nut (1).
(b) Turn upper nut (2) counterclockwise to
tighten belt (3).
(c) Tighten upper nut (2) until belt flex is 1/2
inch (1.27 cm.) at center of belt (3).
(d) Tighten lower nut (1).
(2) Belt Loosening.
(a) Loosen upper nut (2) clockwise until belt flex is 1/2 inch (1.27 cm) at center of belt (3).
(b) Tighten lower nut (1).