JUKI HZL-27Z User manual

Page 1/24
Original issue
May 2009
Service Manual
HZL-27Z
Model
MODEL: HZL-27Z
JUKI HOUSEHOLD SEWING MACHINE CORPORATION

Page 2/24
Original issue
May 2009
Service Manual
HZL-27Z
Model
Contents
1．Disassembling face covers
2．Feed dog height
3．Needle height
4．Hooking fork position of needle threader
5．Presser foot height
6．Needle position at straight stitching
7．M position
8．Needle clearance to shuttle point
9．Timing belt tension
10．Feed dog timing
11．Needle timing to shuttle point
12．Thread tension
13．Belt tension
14．Bobbin case rotation stopper
15．Pitch balance of buttonhole sewing
16．Balance of stitch length on stretch stitching

Page 3/24
Original issue
May 2009
Service Manual
HZL-27Z
Model
1. Disassembling face covers - 1
(1) Remove face cover
Remove 2 screws and take out face cover.
（2）Remove back cover.
1. Remove 3 screws on base cover.
Screw ‘A’ fixes switch cover. It is released with rubber foot.
2．Remove 4 screws from back cover.
Ａ

Page 4/24
Original issue
May 2009
Service Manual
HZL-27Z
Model
1. Disassembling Face cover - 2
3. Remove a screw on front cover.
4. Remove switch cover by small screw driver.
5. Use small driver to remove the connection between front cover and back cover.
Shape of terminal block is different
by destination.

Page 5/24
Original issue
May 2009
Service Manual
HZL-27Z
Model
3. Disassembling face cover - 3
6. Put your hand inside to disconnect side portions.
7. Insert the switch cover to the inside of machine, lower presser foot and pull up
cover near presser foot not to stuck at the lever then pull the back cover behind to
remove.