Pfaff EXPRESSION 2014, Service Manual, Page: 7 / 112

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Specifications of the PFAFF expression 2014 - 2024
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Electronic free-arm, utility and fancy stitch sewing machine
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8 bit processor with 1 Kbyte RAM and 32 Kbyte ROM
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Bobbin thread stitch width = 0 - 6 mm with 30 full steps
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Stitch length = 0 to 6 mm forwards and 0 to 6 mm reverse with a total of 30 full steps or 60 half steps
in each direction
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A full step is 0.2 mm and a half step 0.1 mm
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Keys for stitch width, stitch length, pattern length and balance
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13 different needle positions
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Mirroring key
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One 7.5° stepping motor for needle zigzag motion 30 V
(contact current switching controller)
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One 7.5° stepping motor for feed control 30 V
(contact current switching controller)
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2-track synchronizer
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Electronically controlled needle "up" positioning
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Key for reverse sewing or for finishing a manual buttonhole
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Digital motor control with 950 r.p.m. max. speed
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Approx. 100 - 950 stitches per minute
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Several stitch-length-dependent reduced speeds in addition
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Numerical LCD
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Built-in test program
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When machine is blocked, the motor is switched off automatically after 1 - 2 secs. (Followed by
approx. 4 secs. interruption before sewing process can be continued.)
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Machine: voltage change-over 115/230 V, 50 - 60 Hz
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Low-voltage motor
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High-ohm foot control (cold)
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FM radio and TV screened, approval marking; safety class II with CE, VL, CSA test markings
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Master switch for motor, electronics and sewing lamp
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Built-in sewing lamp 12 V/5 W
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Needle threader
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Pendulum-type needle bar frame.
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Transmission of drive from arm shaft to lower shaft by flat-toothed belt, transmission ratio 1:1
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Power input rating: 75 W when sewing at 950 r.p.m.
27 W when stationary
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Lockstitch of types 301, 302, 303, 304, 305, 308 and all other variants obtainable by sideways needle
movement or forwards and reverse control of the machine feed
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PFAFF horizontal double-rotating hook
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Link take-up
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Slide lever feed regulator for forwards and reverse stitch lengths
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Dual fabric feed on expression 2024
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Disengageable feed dog
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Drive from motor to handwheel by flat-toothed belt.
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Calotte metal bearings
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Oil for calotte metal bearings: BP Energol HLP 46 or HLP 80 No. 28-036550-09
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Oil for sewing hook: No. 91-129452-91