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Chicago Electric 3914 manual

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Table of contents for the manual

  • Page 1

    SEWING MACHINE - SINGLE NEEDLE Model 3914 ASSEMBL Y AND OPERA TION INSTR UCTIONS Due to continuing impro vements , actual product may diff er slightly from the product described herein. ® 3491 Mission Oaks Blvd., Camarillo , CA 93011 Visit our website at: http://www .harborfreight.com T O PREVENT SERIOUS INJUR Y , READ AND UNDERST AND ALL W ARNING[...]

  • Page 2

    P age 2 SKU 03914 For technical questions, please call 1-800-444-3353. Specifications Machine T ype Heavy duty , industrial sewing machine; high speed, single needle-lock stitch Drive V -belt dr iv en Action F oot pedal operation, along with a knee and manual lifting arm for presser f oot. Presser tension adjustment F eed T ype Link style needle f[...]

  • Page 3

    P age 3 SKU 03914 For technical questions, please call 1-800-444-3353. 6. Dress properl y . Do not wear loose clothing or jew elr y as they can be caught in moving par ts. Protective , electr ically nonconductiv e clothes and nonskid footw ear are recom- mended when working. W ear restrictive hair co vering to contain long hair . 7. Do not overreac[...]

  • Page 4

    P age 4 SKU 03914 For technical questions, please call 1-800-444-3353. ph ysician(s) before using this product; operation of electr ical equipment in close proxim- ity to a hear t pacemaker could cause interf erence to or failure of the pacemak er . Note : P erf or mance of this tool ma y vary depending on variations in local line v oltage. Exten- [...]

  • Page 5

    P age 5 SKU 03914 For technical questions, please call 1-800-444-3353. Sewing Machine Motor P ower Switch Knee Lifting Arm f or Presser Foot T able Stand and T op (not provided) Assembl y The assembly instructions describe mounting the Single-Needle Sewing Machine (Model 03914) to the T able Stand (Model 03929), not included. In order to complete t[...]

  • Page 6

    P age 6 SKU 03914 For technical questions, please call 1-800-444-3353. REV 04/03, 05/03 7. Tilt the machine back to e xpose the Oil P an (D). See figure 5. 8. Fill the Oil P an with sewing machine lubrication oil (#7 white oil) to the “high” mar k “A”. Add more oil when the le v el is to the “low” mark “B”. After lubrication, and d[...]

  • Page 7

    P age 7 SKU 03914 For technical questions, please call 1-800-444-3353. REV 03/04 P ower Switch 13. Mount the P ow er Switch under the table top , on the operator’ s side. Use the supplied hardware . Mounting the Thread Stand Note: Th e Th read Sta nd is desi gned to be mo un ted on the T ab le Sta nd Kit (M odel 03929-not included). Unless indica[...]

  • Page 8

    P age 8 SKU 03914 For technical questions, please call 1-800-444-3353. Operation Caution: T o pr operly break-in y our new sewing machine, and av oid possible damage to the machine, sew at moderate to slow speeds for the fir st 15 minutes of use . Bobbin Winder Operation The Bobbin Winder assists in winding thread onto the Bobbin. The Bobbin Winde[...]

  • Page 9

    P age 9 SKU 03914 For technical questions, please call 1-800-444-3353. Winding Thread Onto the Bobbin 1. Place a Bobbin onto the Bobbin Winder Shaft (5) as shown at point d in Figure C , right. 2. Route the Thread from the Spool (not shown) up through the Thread Guide T ube (43, point a ), the hole in the Thread T ension Br ack et Assemb ly (18, b [...]

  • Page 10

    P age 10 SKU 03914 For technical questions, please call 1-800-444-3353. Threading the Machine Head Set the thread spool on its holder and guide the thread through the machine as illustrated abov e. The numbers in the illustration indicate the threading sequence . Adjusting the Stitch Length 1. T o increase the stitch length, tur n the Stitch Length[...]

  • Page 11

    P age 11 SKU 03914 For technical questions, please call 1-800-444-3353. Changing the Thread T ake-up Spring Stroke and Pressure 1. Loosen Set Screw (2). 2. T o increase the stroke, turn the T ension Knob Screw (3) cloc kwise (A). 3. T o decrease the stroke, turn the T ension Knob Screw (3) countercloc kwise (B). 4. Loosen Set Screw (2) and pull out[...]

  • Page 12

    P age 12 SKU 03914 For technical questions, please call 1-800-444-3353. tightness, mo v e the F eed Eccentric Cam down (counterclockwise). Adjusting the Height of the Feed Dog The F eed Dog is f actor y adjusted so that it juts out from the Throat Plate surf ace 0.8 mm to 0.9 mm. If the Feed Dog juts out too m uch, puck er- ing ma y result when sew[...]

  • Page 13

    P age 13 SKU 03914 For technical questions, please call 1-800-444-3353. Adjusting the Presser Bar Height 1. Loosen Set Screw (1) and man ually adjust the Presser Bar height, and the angle of the Presser F oot. 2. After adjusting, securely tighten the Set Screw (1). Adjusting the Thread T ake-up Stroke 1. When sewing hea vy weight materials, mov e t[...]

  • Page 14

    P age 14 SKU 03914 For technical questions, please call 1-800-444-3353. R e f . A m t . No. P ar t No. Description Req. ARM BED P ARTS LIST[...]

  • Page 15

    P age 15 SKU 03914 For technical questions, please call 1-800-444-3353. PLEASE READ THE FOLLO WING CAREFULL Y THE MANUF A CTURER AND /OR DIST RIBU T OR HAS PRO VIDED THE P AR TS DIA GRAM IN THIS MANU AL AS A REFERENCE T OOL ONL Y . NEITHER THE MANUF ACTURER NOR DISTRIBU- T OR MAKES ANY REPRESENT A TION OR W ARRANTY OF ANY KIND TO THE BUYER THA T HE[...]

  • Page 16

    P age 16 SKU 03914 For technical questions, please call 1-800-444-3353. R e f . A m t . No. P ar t No. Description Req. MAIN SHAFT THREAD T AKE-UP P ARTS LIST[...]

  • Page 17

    P age 17 SKU 03914 For technical questions, please call 1-800-444-3353. MAIN SHAFT THREAD T AKE-UP ASSEMBL Y DRA WING[...]

  • Page 18

    P age 18 SKU 03914 For technical questions, please call 1-800-444-3353. Ref. Amt. No. P ar t No. Description Req. F ABRIC--PIERCING HOOK DRIVING P AR TS LIST[...]

  • Page 19

    P age 19 SKU 03914 For technical questions, please call 1-800-444-3353. F ABRIC--PIERCING HOOK DRIVING ASSEMBL Y DRA WING[...]

  • Page 20

    P age 20 SKU 03914 For technical questions, please call 1-800-444-3353. R e f . A m t . No. P ar t No. Description Req. PRESSER B AR P ARTS LIST[...]

  • Page 21

    P age 21 SKU 03914 For technical questions, please call 1-800-444-3353. PRESSER B AR ASSEMBL Y DRA WING[...]

  • Page 22

    P age 22 SKU 03914 For technical questions, please call 1-800-444-3353. Ref. Amt. No. P ar t No. Description Req. FEED MECHANISM P ARTS LIST[...]

  • Page 23

    P age 23 SKU 03914 For technical questions, please call 1-800-444-3353. FEED MECHANISM ASSEMBL Y DRA WING[...]

  • Page 24

    P age 24 SKU 03914 For technical questions, please call 1-800-444-3353. Ref. Amt. No. P ar t No. Description Req. LUBRICA TION P ARTS LIST[...]

  • Page 25

    P age 25 SKU 03914 For technical questions, please call 1-800-444-3353. LUBRICA TION ASSEMBL Y DRA WING[...]

  • Page 26

    P age 26 SKU 03914 For technical questions, please call 1-800-444-3353. Ref. Amt. No. P ar t No. Description Req. OIL RESER V OIR & KNEE LIFTER ASSEMBL Y DRA WING AND P ARTS LIST[...]

  • Page 27

    P age 27 SKU 03914 For technical questions, please call 1-800-444-3353. Ref. Amt. No. P ar t No. Description Req. MA CHINE HEAD A CCESSORIES P ARTS LIST AND ASSEMBL Y DRA WING[...]

  • Page 28

    P age 28 SKU 03914 For technical questions, please call 1-800-444-3353. Ref. Amt. No. P ar t No. Description Req. BOBBIN WINDER & THREAD ST AND UNIT P ARTS LIST[...]

  • Page 29

    P age 29 SKU 03914 For technical questions, please call 1-800-444-3353. BOBBIN WINDER & THREAD ST AND UNIT ASSEMBL Y DRA WING[...]

  • Page 30

    P age 30 SKU 03914 For technical questions, please call 1-800-444-3353. 3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353 Harbor Frei ght T ools Co. makes ev er y effort to assure that its products meet high quality and durability standards, and warrants to the or iginal purchaser that this product is free from defe[...]