How to install motor pulley pig.i, How to install v belt pig.2 – SINGER 1371A2 User Manual
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1) Motors of 370w, 4-pole are used three-phase operation. (If a 250W motor has to be used
for single-phase, operate the machine at 2600 s.p.m. or less, according to order form)
2) M-type V belts are used.
3) Refer to the following table for the motor pulleys, V belt, and sewing speed.
Sewing speed
Frequency
Motor pulley Part No.
High speed
Vbelt
Low speed
Vbelt
2600 s.p.m.
50HZ
GD370
GE137
GE137
3000 s.p.m.
50HZ
GD370H
GE136
GE137
2600 s.p.m.
60HZ
GD370L
GE137L
GE137
3000 s.p.m.
60HZ
GD370HH
GE137H
GE137
* How to install motor pulley pig.i
Place motor pulley ® into the motor shaft so that flat part ® of the motor shaft aligns
with first setscrew ©. Then securely tighten setscrews © and ®.
* ®2
BP^o
* How to install V belt pig.2
1) Mount high-speed V belt © on accelerating pulley © and the large diameters of the
motor pulley.
2) Mount low-speed V belt ® on low-speed pulley ® and the small diameters of the motor
pulley.
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