Timing Belt Tension Adjustment - Brother BC800 Service Manual

Adjustment

Timing belt tension adjustment

1. Loosen the pan (S/P washer) M4X8 screw on the tension pulley assembly.
2. With a force of 1.96 N (200 g) pushing on the center of the belt, adjust the tension pulley assembly position for a
deflection of 4 - 5 mm.
3. Tighten the pan (S/P washer) M4X8 screw on the tension pulley assembly.
XC2277001 Push-pull gauge (3 N)
1.96N (200g)
4-5mm
Pan head screw
(S/P washer, M4x8)
Tension pulley assembly
4 - 3