SERVICE MANUAL - JUKI
SERVICE MANUAL - JUKI SERVICE MANUAL - JUKI
2 - 18 Belt tension SECTION 2 - 18 PAGE 1 * Belt tension should be adjusted in case of belt jumping on heavy material sewing or slow rotation. Reference: Belt is bent about 7 mm when pushing middle portion of belt between upper shaft and motor with pressure of 200 g. Pressure Adjustment: 1. Remove side cover. 2. Loosen two screws (1). Adjust belt tension by moving motor and tighten screws (1).
2 - 19 Hooking Fork Position of Needle Threader Checking: 1. Check and see if #14 needle is used and it is not bent. 2. Set machine for Straight Stitch at center needle position. 3. Raise the needle to its highest position by rotating the hand wheel towards you. 4. Lowering needle hole threader lever, check and see if hook (1) inserts into needle hole. ( 3 ) SECTION 2 - 19 PAGE 1 ( 1 ) Adjustment when hook (1) is deviated horizontally or bent vertically: Correct the condition using small screw driver as illustrated. Deviated horizontally Bent vertically Adjustment when hook (1) is deviated vertically: 1. Remove face cover. 2. Turning hand wheel by hand, bring needle bar to its highest position. 3. Lower needle hole threader lever (3). 4. Pushing needle hole threader lever (3) away from you, insert hook (1) into needle hole, and keep it. 5. Loosen stopper screw (4). 6. Holding threader stopper (4) onto stopper pin (8), tighten stopper screw (5). Make sure to align the screw (5) with the screw (7) on needle bar clamp (6) Center ( 8 ) ( 4 ) ( 5 ) ( 6 ) ( 7 )
- Page 1 and 2: ® SEWING MACHINE HZL-25Z SERVICE M
- Page 3 and 4: 3. Face cover SECTION 1 PAGE 2 Disa
- Page 5 and 6: 5. FRONT COVER Disassembling 1. Rem
- Page 7 and 8: 7. Hand wheel SECTION 1 PAGE 6 Re-a
- Page 9 and 10: 2 - 1 L - R positioner SECTION 2 -
- Page 11 and 12: 2 - 3 Needle Position at Zigzag Sti
- Page 13 and 14: 2 - 5 Feed Dog Height SECTION 2 - 5
- Page 15 and 16: 2 - 7 Feed Dog Lateral positioning
- Page 17 and 18: SECTION 2 -8 PAGE 2 Lateral Movemen
- Page 19 and 20: 2 - 10 Buttonhole sewing - "0" feed
- Page 21 and 22: SECTION 2 - 12 PAGE 1 2 - 12 Balanc
- Page 23 and 24: 2 - 14 Needle Height SECTION 2 - 14
- Page 25 and 26: Adjustment if needle touches needle
- Page 27 and 28: Checking rotating direction of shut
- Page 29: 2 - 17 Control panel pointer positi
- Page 33 and 34: 2 - 20 Bobbin Winder SECTION 2 - 20
- Page 35: ® 8-2-1, KOKURYO-CHO, CHOFU-SHI, T
2 - 18 Belt tension<br />
SECTION 2 - 18<br />
PAGE 1<br />
* Belt tension should be adjusted in case of belt jumping on heavy material sewing<br />
or slow rotation.<br />
Reference:<br />
Belt is bent about 7 mm when pushing middle portion of belt between upper<br />
shaft and motor with pressure of 200 g.<br />
Pressure<br />
Adjustment:<br />
1. Remove side cover.<br />
2. Loosen two screws (1). Adjust belt tension by moving motor and tighten<br />
screws (1).
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