Pfaff 360 User Manual

All ffaff speed controls are equipped with a resistor made of nickeline
wire which is extremely durable and will withstand hard wear.
One of the lows of electricity says that the energy onrnihiloted in the rheo-
stat is inevitably converted into heat and that the amount of heat released
in the process is the some, regardless whether a carbon-pile or a wire
rheostat is involved.
Occasional complaints about this fact indicate that this physical low is not
enough known among our customers.
3. The , PE 370 Motor
34
This type of motor is used in the Pfaff 360 (-2 61) free- arm portab le sewing
machine.
In compliance with safety regulat ions, the PE 370 motor is enclosed 10 a
plastic housing. Its principal components are as follows:
1. Stator
2. Rotor with commutator
3. End shield (drive end), with powder-metal bearing and screwholes for
mounting it on
the motor base plate
4. End shield (opposite end), with powder-metal bearing and brushholder
5.
Carbon brushes
When operating at 4,700 r.p.m., the motor has on output of 30 watts which
corresponds to the power required to drive a portable sewing machine and
guarantees a minimum sewing speed of 1,200 s.p.m.
The motor, together with
the radio noise filter an d the terminal box, is
mounted on the motor base plate. The technical data of the motor is
recorded on the rating plate which is screwed onto the bottom of the motor
base plate . T he wiring of the motor is illustrated in Fig. 56 .
Fig. 57 Treadle control
Fig.
58 Knee control
Fig.
59 Fool control

Pfaff 360 Specifications

General

Type	Mechanical
Free Arm	Yes
Presser Foot Pressure	Adjustable
Built-in Needle Threader	No
Stitch Functions	Straight stitch, zigzag stitch, decorative stitches
Needle Position	Adjustable
Stitch Width	Up to 5mm
Buttonhole Styles	4-step
Presser Feet	Buttonhole