Janome QMP16SU User manual
QMP16SU Service Manual | 1
Contents
About the Janome QMP16SU .............................................................................................................2
About This Manual ..................................................................................................................................... 2
Service Manual Guidelines..................................................................................................................... 2
1. General Specicaons .................................................................................................................... 4
................................................................................................................. 5
3. Preparing to Service........................................................................................................................6
.............................................................................................. 6
Remove the Front Cover, Control board, and Power Supply.................................................................. 7
.......................................................................................... 9
.................................................................................................................. 10
QMP16Su Cables...................................................................................................................................12
4. Lubricaon ................................................................................................................................... 16
5. General Checks and Adjustments.................................................................................................. 19
Thread Mast......................................................................................................................................... 20
Hand Wheel ......................................................................................................................................... 20
Thread Guides...................................................................................................................................... 20
Top Tension Assembly .......................................................................................................................... 21
Check and Secure Flats and Screws..................................................................................................... 24
Check and Adjust Axial Play ................................................................................................................. 27
Check the Base-Plate Wheels............................................................................................................... 29
.............................................................................................. 30
................................................................................................... 32
...................................................................... 33
............................................................................................. 34
6. Timing Adjustments...................................................................................................................... 36
.......................................................................................... 39
................................................................................................................ 44
....................................................................................................................... 46
.................................................................................. 47
7. Machine Electronics...................................................................................................................... 50
......................................................................... .51
Fuse and Power Supply........................................................................................................................ 52
..................................................................................................................... 53
................................................................................................................................. 54
........................................................................................................................ 55
............................................................................................................. 56
.................................................................................................................. 57
.......................................................................................................................... 58
Electrical Notes Janome QMP16SU ..................................................................................................... 59
8. Janome QMP16SU Screens ...................................................................................................... .62
............................................................................................................................................63
2 | www.Janome.com
1. About the Janome QMP16SU
About This Manual
NOTE
product.
ÂIMPORTANT
Janome product.
UCAUTION
Service Manual Guidelines
•
the manual.
•
•
the service technician.
•
•
QMP16SU Service Manual | 3
•
4 | www.Janome.com
2. General Specications
Needle System
Hook System
Bobbin Type Aluminum, Class M
Bobbin Case Type MF
Motor Type
Electrical Power
5 mm
Needle Bar Stroke 35.3 mm
Take-Up Stroke 73 mm
Kluber Lube, permanent
Velocite 10, Texaco 22
QMP16SU Service Manual | 5
Assembly Torque Specicaons
• Belt tensioner
• Base plates
• Hand wheel
6 | www.Janome.com
3. Preparing to Service
Electrostac Discharge (ESD) Precauon
the open electronics as much as possible.
To use an ESD-safe mat and wrist strap
1.
2.
Place the wrist strap on your wrist and connect it to
UCAUTION
work area.
UCAUTION
board.
QMP16SU Service Manual | 7
Removing the Front Cover
Remove the three small front frame screws
Tools: 3 mm handle hex wrench; may need a 3
mm L-hex wrench to break loose the screws.
1.
2. Use the 3 mm hex wrench to remove the
Remove the thread mast
Tool: 3 mm handle hex wrench
1. Loosen and remove the two screws in the
thread mast.
2. Remove the thread mast.
Loosen or remove the three power plate screws
from the boom of the front cover.
Tool: 2.5 mm handle hex wrench
the machine encoder.
8 | www.Janome.com
To remove the front cover
Tools: 4 mm handle hex wrench; may need
a 4 mm L-hex wrench to break loose the
screws.
1.
2.
screws.
3.
4.
UCAUTION: The take-up lever is very
hard and will break, not bend.
QMP16SU Service Manual | 9
Reassemble the Machine Following Servicing
Front cover screw sizes and posions
To reassemble the machine following servicing
1.
UCAUTION
2.
3.
Â
Â
NOTE
10 | www.Janome.com
Control Board Connecons
A
B
C
DE
F
G
F
B
D
A
C
G
A
B
C
D
E
F
G
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