Janome QMP16SU User manual

QMP16SU Service Manual | 1
Contents
About the Janome QMP16SU .............................................................................................................2
About This Manual ..................................................................................................................................... 2
Service Manual Guidelines..................................................................................................................... 2
1. General Specicaons .................................................................................................................... 4
 ................................................................................................................. 5
3. Preparing to Service........................................................................................................................6
.............................................................................................. 6
Remove the Front Cover, Control board, and Power Supply.................................................................. 7
 .......................................................................................... 9
.................................................................................................................. 10

QMP16Su Cables...................................................................................................................................12
4. Lubricaon ................................................................................................................................... 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

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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 Specications
 
 

 
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 Specicaons









• Belt tensioner







• Base plates

• Hand wheel

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3. Preparing to Service
Electrostac Discharge (ESD) Precauon


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 boom of the front cover.
Tool: 2.5 mm handle hex wrench


the machine encoder.



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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 posions
To reassemble the machine following servicing


1. 

UCAUTION
2. 

3. 



Â

Â
NOTE


10 | www.Janome.com
Control Board Connecons






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QMP16SU Service Manual | 11
Main Sha Encoder, Motor Driver
Board, and Motor Connecons











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QMP16SU CABLES
1.  
2.  
3. 
4.  
5.  
6.  
7.  
8.  
9.  
10.  
11.  
1.  



2.         





QMP16SU Service Manual | 13
QMP16SU CABLES
3. 



th
 



 


ver.
 
Jumps the power supply switch on the power supply, the
machine will not power up without this jumper.

14 | www.Janome.com
QMP16SU CABLES
7.  


8.  

9. 

10.  

driver board.

QMP16SU Service Manual | 15
QMP16SU CABLES
11. 



16 | www.Janome.com
4. Lubrication
Janome QMP16SU Lubricaon Specicaons
Rep Lube Kit Part# QM49262
Lubricant Type Machine Components
1.  
2.  
3.  
4.  
5.  
eccentric
6. 
or similar white oil, i.e. Texaco 22, or
Velocite 10
Hook race
Janome Lubricant Order Numbers
#1 Red OY 68 Replacement Lube #1 Red: QM49301
 Replacement Lube #2 Blue: QM49302
#3 Yellow GLY 2100 Replacement Lube #3 Yellow: QM49303
 Replacement Lube #4 Green: QM49304
 Replacement Lube 
#6 Purple Texaco 22, hook race only Replacement Lube #6 Purple: QM49306
 Retailer Lube Kit Box #1-#6 Kit QM49262
Janome QMP16SU Lubricang Schedule

Roune Oiling of the Race






QMP16SU Service Manual | 17
Where to Lubricate the Janome QMP16SU machine
Lube #1 (Red)
Lube #2 (Blue)



18 | www.Janome.com
5
5
3 
3
1
1
4
1
1
3
5
5
4
2. Other places to oil: 

#1 (Red) OY 68



#4 (Green) IsoFlex NCA-15


#3 (Yellow) GLY 2100


driver

#5 (Orange) GLY 151





QMP16SU Service Manual | 19
2
4
3
1
5
6
7
8
11
10
9
12
13
14
1. Spool Tray
2. Thread Mast
3. Thread Guide A
4. Three-Hole Thread Guide B
5. Thread Guide C
6. Top Thread Tension Assembly
7. Srrup Thread Guide D
8. Take-Up Lever
9. Thread Guide E
10. Needlebar Thread Guide F
11. Front Casng/Frame
12. Ruler Base Post
13. Side Laser Stylus Post Hole
14. Hand Wheel
5. General Checks and Adjustments

20 | www.Janome.com
Spool Tray and Thread Mast





Check

over the spool pins.

Tool: #2 Phillips Screwdriver

thread mast. Adjust the thread mast loops directly over the

the screw with the other hand.
Hand Wheel
Check


machine cover, it should not be loose, and there should not be an


Tool: 3 mm hex wrench
1. 
2. Loosen the hand-wheel set screw.
3. 
Thread Guides
See Janome QMP16SU Front Side View
Check




Tool: 2 mm and 2.5 mm hex wrench
• 