Singer 471U - Belt Shifter Adjustment

Clutch engagement lever adjustment
Loosen nut and turn bolt 0 to adjust the clutch
lever 0 to bolt gap to 0.5 ~ 1.0 mm when the
machine is stopped.
Brake adjustment
Loosen the two set screws 0 and move the brake
assembly (£) adjusting the stop cam lid0 to brake
shoe 0 gap to 0.5 1.0 mm when the machine is
running slowly.
0.5~1 mm
M
• 1^
//
0.5~1 mm
|I^ Belt shifter adjustment
If the belt shifters are not properly adjusted, the belts may not shift properly in either high or low speed, the
machine may suddenly stop without having been slowed down, and machine speed may not increase properly.
1. Belt shifter D position adjustment
13 mm
1. Loosen Allen bolt o and move the belt shifter drive lever O to adjust the belt shifter drive lever O stopper to
arm gap to 13 mm when the machine is running.
2. Loosen the bolt O and vertically shift the belt shifter cam 0 so that it touches the roller O lightly when the
stopper O meetsthe belt shifter guide 0.
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From the library of: Superior Sewing Machine & Supply LLC