Janome CoverPro 3000 PROFESSIONAL Troubleshooting guide

SERVICE MANUAL
&
PARTS LIST
MODEL: CoverPro 3000 PROFESSIONAL
(Continental Europe)
(Australia)
(UK)
Sixth Edition: 12 October 2021

First Edition: 25 May 2021
Modied info.
Modied: 28 May 2021
P44-6: image added.
P45-20: 624245001 Thrust stopper →000038502 Washer
Modied: 22 June 2021
P49-4: 778636014 →778636003
P49-5: 778108012 →778108001
Modied: 14 July 2021
Service manual: modied.
Modied: 20 August 2021
P31: NOTE: Insert the 2 mm spacer obetween the ring !0 and top cover stitch cam !1 to adjust the clearance. →
NOTE: Adjust as below while pressing the top cover stitch cam !0 against the ring o.
Modied: 12 October 2021
P23-15: 778800055 →778800000
P23-15: 778800066 →778800011

INDEX
Replacing the External Parts
Face cover............................................................................................................................................. 1
Top Cover .............................................................................................................................................. 2
Belt Cover.............................................................................................................................................. 3
Free Arm Cover..................................................................................................................................... 4
Looper Cover......................................................................................................................................... 5
Base plate ............................................................................................................................................. 6
Front Cover............................................................................................................................................ 7
Rear Cover ............................................................................................................................................ 8
Mechanical Adjustment
Presser Bar Height ................................................................................................................................ 9
Presser Foot Pressure ........................................................................................................................ 10
Needle Bar Height............................................................................................................................... 11
Feed Dog Height ................................................................................................................................. 12
Looper Height...................................................................................................................................... 13
Looper Position ................................................................................................................................... 14
Needle to Looper Timing..................................................................................................................... 15
Clearance between the Needle and Looper ....................................................................................... 16
Rear Needle Guard Height.................................................................................................................. 17
Needle to Feed Dogs Timing............................................................................................................... 18
Stitch Length ....................................................................................................................................... 19
Differential Feed Ratio......................................................................................................................... 20
Thread Tension.................................................................................................................................... 21
Motor ................................................................................................................................................... 22
Thread take-up lever ........................................................................................................................... 23
Replacing the needle threader ............................................................................................................ 24
Adjusting needle threader switch lever ............................................................................................... 25
Replacing the top cover stitch mechanism unit................................................................................... 26
Adjusting the top cover stitch mechanism unit 1................................................................................. 27
Adjusting the top cover stitch mechanism unit 2................................................................................. 28
Adjusting the top cover stitch mechanism unit 3................................................................................. 29
Adjusting the top cover stitch mechanism unit 4................................................................................. 30
Adjusting the top cover stitch mechanism unit 5 ................................................................................ 31
PARTS LIST .............................................................................................................................. 32 to 53

INDEX
Replacing the External Parts
Face cover............................................................................................................................................. 1
Top Cover .............................................................................................................................................. 2
Belt Cover.............................................................................................................................................. 3
Free Arm Cover..................................................................................................................................... 4
Looper Cover......................................................................................................................................... 5
Base plate ............................................................................................................................................. 6
Front Cover............................................................................................................................................ 7
Rear Cover ............................................................................................................................................ 8
Mechanical Adjustment
Presser Bar Height ................................................................................................................................ 9
Presser Foot Pressure ........................................................................................................................ 10
Needle Bar Height............................................................................................................................... 11
Feed Dog Height ................................................................................................................................. 12
Looper Height...................................................................................................................................... 13
Looper Position ................................................................................................................................... 14
Needle to Looper Timing..................................................................................................................... 15
Clearance between the Needle and Looper ....................................................................................... 16
Rear Needle Guard Height.................................................................................................................. 17
Needle to Feed Dogs Timing............................................................................................................... 18
Stitch Length ....................................................................................................................................... 19
Differential Feed Ratio......................................................................................................................... 20
Thread Tension.................................................................................................................................... 21
Motor ................................................................................................................................................... 22
Thread take-up lever ........................................................................................................................... 23
Replacing the needle threader ............................................................................................................ 24
Adjusting needle threader switch lever ............................................................................................... 25
Replacing the top cover stitch mechanism unit................................................................................... 26
Adjusting the top cover stitch mechanism unit 1................................................................................. 27
Adjusting the top cover stitch mechanism unit 2................................................................................. 28
Adjusting the top cover stitch mechanism unit 3................................................................................. 29
Adjusting the top cover stitch mechanism unit 4................................................................................. 30
Adjusting the top cover stitch mechanism unit 5 ................................................................................ 31
PARTS LIST .............................................................................................................................. 32 to 53

1
Replacing the External Parts
1. Face cover
To remove:
zRemove the setscrew q.
 Placeyourngerinthegroovewandslidethelamp
arm cover etotheright.
Remove the setscrew r.
 DisconnecttheconnectorAtandconnectorBy.
Remove the face cover u.
To attach:
x Followtheaboveproceduresinreverse.
r
w e
e
q
u
ty

2
2. Top Cover
To remove:
z Raisethecarryinghandleq.
Remove the setscrews w(2pcs.).
Remove the hooks e(6pcs.).
 Removethetopcoverr.
To attach:
x Followtheaboveproceduresinreverse.
w
w q
er
r
e
r
q
Replacing the External Parts

3
3 . Belt Cover
To remove:
zRemove the setscrew q.
 Loosenthesetscrewsw(2pcs.).
Remove the belt cover e.
To attach:
x Followtheaboveproceduresinreverse.
w
w
q
e
Replacing the External Parts

4
4. Free Arm Cover
To remove:
z Pulltheextensiontableqawayfromthemachine.
Remove the setscrews w(3pcs.).
Remove the free arm cover e.
To attach:
x Followtheaboveproceduresinreverse.
w
e
q
Replacing the External Parts

5
5. Looper Cover
To remove:
zRemove the setscrews q(2pcs.)
 Removetheloopercoverw(withahingeattached).
To attach:
x Followtheaboveproceduresinreverse.
q
w
w
(Viewfromthebottomside)
Replacing the External Parts