How it Works
Brother
Loading...
BAS 311E
Instruction Manual
14 pgs1.37 Mb1
Owner's Manual
28 pgs1.9 Mb1
Parts Book
123 pgs4.67 Mb0
User Manual
150 pgs3.53 Mb2
User Manual
101 pgs3.17 Mb1
User Manual
41 pgs1.31 Mb1
Instruction Manual
4 pgs644.31 Kb0
Instruction Manual
226 pgs1.98 Mb0
Option Manual
18 pgs155.41 Kb0
Table of contents
Loading...

Brother BAS-311E User Manual

SERVICE MANUAL
BAS-311E,311EL BAS-326E,326EL
Please read this manual before making any adjustments.
PROGRAMMABLE ELECTRONIC PATTERN SEWER WITH CYLINDER BED
This service manual is intended for BAS-311E, 311EL and 326E; be sure to read the BAS-311E, 311EL, and 326E, 326EL instruction manuals before this manual. Carefully read the “SAFETY INSTRUCTIONS” below and the whole of this manual to understand this product before you start maintenance. As a result of research and improvements regarding this product, some details of this manual may not be the same as those for the product you purchased. If you have any questions regarding this product, please contact a Brother dealer.
SAFETY INSTRUCTIONS
z Safety indications and their meanings
This instruction manual and the indications and symbols that are used on the machine itself are provided in order to ensure safe operation of this machine and to prevent accidents and injury to yourself or other people. The meanings of these indications and symbols are given below.
Indications
DANGER
CAUTION
Symbols
.................This symbol ( ) indicates something that you should be careful of. The picture
.................This symbol (
.................This symbol (
The instructions which follow this term indicate situations where failure to follow the instructions will almost certainly result in death or severe injury.
The instructions which follow this term indicate situations where failure to follow the instructions could cause injury when using the machine or physical damage to equipment and surroundings.
inside the triangle indicates the nature of the caution that must be taken. (For example, the symbol at left means "beware of injury".)
) indicates something that you must not do.
) indicates something that you must do. The picture inside the circle indicates the nature of the thing that must be done. (For example, the symbol at left means "you must make the ground connection".)
i
x Notes on safety
Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before opening the face plate of the control box. Touching areas where high voltages are present can result in severe injury.
DANGER
CAUTION
Installation
Machine installation should only be carried out by a qualified technician.
Contact your Brother dealer or a qualified electrician for any electrical work that may need to be done.
The sewing machine weights more than BAS-311E60kg,BAS-311EL·326E· 326EL65kg. The installation should be car­ried out by two or more people.
Do not connect the power cord until instal­lation is complete, otherwise the machine may operate if the start switch is pressed by mistake, which could result in injury.
Be sure to connect the ground. If the ground connection is not secure, you run a high risk of receiving a serious electric shock, and problems with correct operation may also occur.
Sewing
Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not get into your eyes or onto your skin, otherwise inflammation can result. Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause vomiting and diarrhoea. Keep the oil out of the reach of children.
Avoid setting up the sewing machine near sources of strong electrical noise such as high-frequency welding equipment. If this precaution is not taken, incorrect ma­chine operation may re
Have two people present to hold the machine head with both their hands when tilting it back or returning it to its original position.
This sewing machine should only be used by operators who have received the neccessary training in safe use beforehand.
The sewing machine should not be used for any applications other than sewing.
Attach all safety devices before using the sewing machine. If the machine is used without these devices attached, injury may result.
Turn off the power switch at the following times, otherwise the machine may operate if the start switch is pressed by mistake, which could result in injury.
• When not using the machine
• When leaving the machine unattended
ii
Do not touch any of the moving parts or press any objects against the machine while sew­ing, as this may result in personal injury or damage to the machine.
If an error occurs in machine operation, or if abnormal noises or smells are noticed, im­mediately turn off the power switch. Then contact your nearese Brother dealer or a qualified technician.
If the machine develops a problem, contact your nearest Brother dealer or a qualified technician.
If using a work table which has casters, the casters chould be secured in such a way so that they cannot move.
CAUTION
Cleaning
Turn off the power switch before starting any cleaning work, otherwise the machine may operate if the start switch is pressed by mis­take, which could result in injury.
Maintenance and inspection
Maintenance and inspection of the sewing machine should only be carried out by a qualified technician.
Ask your Brother dealer or a qualified elec­trician to carry out any maintenance and inspection of the electrical system.
Turn off the power switch and disconnect the power cord from the wall outlet at the following times, otherwise the machine may operate if the start switch is pressed by mis­take, which could result in injury.
• When carrying out inspection, adjustment and maintenance
• When replacing consumable parts such as the rotary hook and knife
Disconnect the air hoses from the air sup­ply and wait for the needle on the pressure gauge to drop to "0" before carrying out in­spection, adjustment and repair of any parts which use the pneumatic equipment.
Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not get into your eyes or onto your skin otherwise inflammation can result. Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause vomiting and diarrhoea. Keep the oil out of the reach of children.
If the power switch and air need to be left on when carrying out some adjustment, be ex­tremely careful to observe all safety precau­tions.
Use only the proper replacement parts as specified by Brother.
If any safety devices have been removed, be absolutely sure to re-install them to their origi­nal positions and check that they operate correctly before using the machine.
Any problems in machine operation which result from unauthorized modifications to the machine will not be covered by the warranty.
Have two people present to hold the machine head with both their hands when tilting it back or returning it to its original position.
iii
c Warning labels
★The following warning labels appear on the sewing machine.
Please follow the instructions on the labels at all times when using the machine. If the labels have been removed or are difficult to read, please contact your nearest Brother dealer.
1
Moving parts may cause injury.
Operate with safety de vices . Turn off main switch before threading, changing bobbin and needle, cleaning etc.
Safety devices: Thread take-up cover,
Eye guard, Belt cover, Finger guard, etc.
2
Hazardous voltage will cause injury.
Turn off main switch and wait 5 minutes before opening this cover.
Hochspannung verletzungsgefahr!
Bitte schalten sie den hauptschalter aus und warten sie 5 minuten, bevor sie diese abdeckung öffnen.
Un voltage non adapté provoque des blessures.
Eteindrel'interrupteur et attendre 5 minutes avantd' ouvrir le capot
Un voltaje inadecuado puede provocar las heridas.
Apagar el interruptor principal y esperar 5 minutos antes de abrir esta cubierta.
[BAS-311E]
Eye guard
Finger guard
Belt cover
Thread take-up cover
1
1
2
iv
Explanation of models
This manual explains three models
•BAS-311E (Solenoid type, Pnevmatic type), 311EL (Pnevmatic type), 326E, 326EL (Pnevmatic type) Explanation for individual model is provided by identifying the model name. Check the model before useing the machine.
INDEX
Chapter 1. Mechanical description ........................................................... 1
1. Needle bar, thread take-up, lower shaft and shuttle hook mechanism................. 1
2. Work clamp lifting mechanism (1)(2) ....................................................................... 2
3. Feed mechanism (X axis) .......................................................................................... 4
4. Presser foot mechanism (1)(2) .................................................................................. 6
5. Thread trimmer mechanism ..................................................................................... 8
6. Thread nipper (1)(2) when presser foot rises ......................................................... 9
7. Thread wiper (1) (2).................................................................................................... 10
Chapter 2. Disassembly ............................................................................. 11
1. Covers (1)(2)(3) ........................................................................................................... 11
2. Feed mechanism ........................................................................................................ 13
3. Presser foot mechanism ............................................................................................ 14
4. Needle bar mechanism.............................................................................................. 15
5. Upper shaft mechanism ............................................................................................ 16
6. Feed mechanism (Y axis)(1)(2)(3) ............................................................................. 17
7. Feed mechanism (X axis)(1)(2) ................................................................................. 20
8. Lower shaft mechanism ............................................................................................ 22
9. Work clamp lifter (Solenoid type) ............................................................................. 23
10. Thread nipper mechanism ........................................................................................ 24
11. Thread trimmer mechanism .................................................................................... 25
Chapter 3. Assembly .................................................................................. 26
1. Thread trimmer mechanism (1) ................................................................................ 26
2. Thread nipper mechanism ........................................................................................ 27
3. Work clamp lifter mechanism .................................................................................. 29
4. Feed mechanism (X axis) .......................................................................................... 31
5. Feed mechanism (Y axis) .......................................................................................... 35
6. Upper shaft mechanism ............................................................................................ 39
7. Needle bar mechanism.............................................................................................. 40
8. Presser foot mechanism ............................................................................................ 41
9. Lower shaft mechanism (1) ....................................................................................... 43
10. Lower shaft (Rotary hook) (2).................................................................................... 44
11. Thread trimmer mechanism ..................................................................................... 45
12. Feed guide mechanism (Home position adjustment: X ) ....................................... 46
13. Covers ......................................................................................................................... 49
Chapter 4. Adjustments ............................................................................. 51
1. Adjusting the needle bar height adjustment ........................................................... 51
2. Adjusting the needle bar lift amount........................................................................ 51
3. Adjusting the needle clearance................................................................................. 52
4. Adjusting the driver needle guard ............................................................................ 52
5. Adjusting the shuttle race thread guide ................................................................... 52
6. Adjusting the two-step work clamp lift amount ...................................................... 53
7. Adjusting the movable knife ..................................................................................... 55
8. Adjusting the lowest point of the presser foot ........................................................ 58
9. Changing the presser foot lift ................................................................................... 59
10. Wiper adjustment....................................................................................................... 60
11. Adjusting the home position..................................................................................... 61
12. Adjusting the tension of the timing belt .................................................................. 64
13. Adjusting backlashes ................................................................................................. 66
14. Adjusting the driving lever stopper position ........................................................... 67
15. Adjusting the thread trimmer driving lever position .............................................. 67
16. Work clamp lift components for manual operation (Solenoid type) ..................... 68
17. Adjusting the presser foot height ............................................................................. 68
18. Adjusting the needle up step position ..................................................................... 69
Chapter 5. How to make up the work clamp........................................... 70
1. How to make up clamping type work clamp ........................................................... 70
2. How to make up cassette type work clamp ............................................................. 71
Chapter 6. Power supply and electrical parts adjustment ..................... 73
1. Precautions at the time of adjustment ..................................................................... 73
2. Components inside the control box ......................................................................... 73
3. Fuse explanation ........................................................................................................ 74
4. Connectors.................................................................................................................. 75
5. DIP switches ............................................................................................................... 82
6. Changing special functions using the memory switches ....................................... 86
7. Checking the input sensor and DIP switch input ..................................................... 90
8. Checking the input voltage........................................................................................ 91
9. Clearing all memory settings .................................................................................... 91
10. Confirming software version .................................................................................... 92
11. Error codes ................................................................................................................. 93
Chapter 7. Trouble shooting ..................................................................... 95
Flowchart .................................................................................................................... 95
Problem solution and measures ............................................................................... 101
Chapter 8. 1. Gauge parts list according to subclasses .......................... 112
Chapter 9. Gauge parts list........................................................................ 113
Chapter 10. Option parts ............................................................................. 123
Control Block diagram ............................................................................................... 140

Chapter 1. Mechanical description

Chapter 1. Mechanical description

1. Needle bar, thread take-up, lower shaft and shuttle hook mechanism

y
u
!3
!2
t
r
e
!1
w
!0
q
i
o
1. When the machine pulley q rotates in the direction of the arrow, the upper shaft w rotates, then it rotates the thread
take-up crank e.
2. The needle bar crank r, attached to the thread take-up crank e, moves the thread take-up lever t.
3. The needle bar u attached to the needle bar clamp y is moved up and down.
4. When the machine pulley q rotates in the direction of the arrow, the crank rod i attached to the upper shaft w moves
up and down.
5. The crank rod i oscillates the attached rock gear o.
6. The rock gear o oscillates the lower shaft !1 through the lower shaft gear !0. The lower shaft !1 oscillates the attached
driver !2 and inner rotary hook !3 in the shuttle hook mechanism.
1
Chapter 1. Mechanical description

2. Work clamp lifting mechanism (1) (Solenoid type), 311E

e
r
q
w
t
y u
1. When the presser signal is on, the presser solenoid q operates.
2. The plunger w operates in the direction of the arrow and moves link (B) t through link (C) e and link shaft (A) r.
3. Link (B) t presses down the presser plate u through the link shaft (C) y.
i
!1
o
!6
!0
!2
!3
!4
!5
!7
4. When the work clamp plate operates, the slider i and the slider support o are pressed down. When they are pressed,
work clamp lifter lever R. !1 is raised through the slider support shaft !0.
5. The spring !2, the work clamp arm lever (RR) !3 and (F) !4 which are linked to presser bar lifter lever (R) !1 operate in the
direction of the arrow.
6. Work clamp (UN) !5 and presser foot (L) !6 ·(R) !7 are pressed down through work clamp lever (F) !4.
2
Chapter 1. Mechanical description
Work clamp lifting mechanism (2) 311E, 311EL (Pneumatictype)
e
r
w
q
1. When the air cylinder q operates in the direction of the arrow, work clamp arm levers R w and F e also operate in the
direction of the arrow.
2. Work clamp SE r is moved vertically via work clamp arm lever F e.
Work clamp lifting mechanism 326E
w
e
r
q
1. When the air cylinder q operates in the direction of the arrow, work clamp lifter lever D w and lever U e also operate
in the direction of the arrow.
2. Work clamp SE r is moved vertically via knee lifter lifting lever U e.
3
Chapter 1. Mechanical description

3. Feed mechanism (X axis) 311E, 311EL, 326E, 326EL

e
r
t
u
y
1. When X-timing pulley A326 w attached to the X-pulse motor q moves, its motion is transmitted to X-timing pulley
B311 r via X-timing belt A311 e.
2. When X-timing pulley B311 r moves, timing pulley A y linked to the X-timing pulley shaft t moves X-timing belt
B311 u left and right.
3. Feed bracket X i secured to X-timing belt B311 u moves via linear guide 311 o in the X direction (left and right).
w
q
i
o
4
Feed mechanism (Y axis) 311E and 311EL
Chapter 1. Mechanical description
e
w
!2
!5
e
r
t
!4
1. The driving gear w attached to the Y-pulse motor q oscillates the idle gear e.
2. When the idle gear e oscillates, the Y-timing belt y moves forward and backward through timing pulley (A)t attached
to Y-pulley shaft (A)r.
3. The belt holder u and the Y-driving shaft holder i which are fixed to the Y-timing belt y operate the Y-driving shaft o.
4. The X-feed shaft support !0 and the X-feed shaft !1 are attached to the Y-driving shaft o. The presser arm assembly !2
is attached to the Y-feed bracket !3.
5. The Y-feed bracket !3 operates in the Y-direction (moves longitudinally) via the Cross roller !4 and the Y-feed guide !5.
q
!3
o
!0
!1
y
u
i
Feed mechanism (Y axis) 326E, 326EL
q
i
!1
!0
1. When the Y-pulse motor q operates, its motion is transmitted to the driving gear r attached to the Y-driving gear shaft
e via the coupling w.
2. The driving gear r is engaged with the rack of the Y-driving shaft t, and the Y-driving shaft t moves back and forth.
3. The work clamp arm assy i is attached to the Y-feed bracket o via X-feed shaft support 326 y attached to the Y-
driving shaft t and the X-feed shaft u.
4. The Y-feed bracket o operates in the Y-direction (back and forth) via cross roller 326 !0 and Y-feed guide 326Y !1.
w
r
e
t
y
u
o
5
Chapter 1. Mechanical description

4. Presser foot mechanism (1)

r
t
y
u
e
q
w
1. When the upper shaft q rotates, the stepping work clamp cam w moves eccentrically, and the stepping work clamp
connecting rod e oscillates stepping work clamp arm R r.
2. The oscillation of stepping work clamp arm R r is transmitted to stepping work clamp arm F t, and the stepping link
assy y moves the presser bar lifter u up and down.
6
Presser foot mechanism (2)
r
Chapter 1. Mechanical description
e
q
1. When the stepping work clamp signal is on, the stepping solenoid q operates the lifter lever w.
2. The lifter lever w operates the work clamp lifter lever assy r via the work clamp lifter wire e.
Note: When the machine stops, the stepping solenoid q operates, and the presser foot rises as soon as the work clamp
rises. At this time, tension releasing is performed.
w
7
Chapter 1. Mechanical description

5. Thread trimmer mechanism

q
w
t
r
y
e
u
i
o
!1
!0
!2
!3
1. When the thread trimmer signal is on, the thread trimming solenoid q pushes the pushing lever driving lever w.
2. The pushing lever driving lever w pushes the thread trimmer driving lever r in the direction of the arrow, pivoting on
the shoulder screw e. The pushing lever driving lever w slides along the driving lever shaft t.
3. The roller y attached to the thread trimming driving lever r fits into the groove of the thread trimmer cam u, and
operates the thread trimmer rod i.
4. As the thread trimmer lever o is linked to the thread trimmer rod i, the connecting rod lever !0 operates.
5. When the thread trimmer connecting rod !1 linked to the connecting rod lever !0 operates, the fixed knife !2 and the
movable knife !3 fit into each other and perform thread trimming.
8
Chapter 1. Mechanical description

6. Thread nipper (1) when presser foot rises

r
e
r
q
1. When the machine stops, the stepping solenoid q operates, and the presser foot rises as soon as the work clamp rises.
2. The stepping solenoid q operates the lifter lever w, and the work clamp lifter lever assy e via the work clamp lifter
wire r.
w
Thread nipper (2) during thread trimming
q
w
e
t
y
r
1. When the thread trimming signal is on and the thread trimming solenoid operates, the thread trimmer driving lever q
is pushed in the direction of the arrow.
2. The thread trimmer driving lever q moves the tension release lever e via the tension release rod w.
3. The tension release lever e pushes the tension release bar r.
4. The end of the tension release bar r pushes the pin t and the tension disk opens y.
9
Chapter 1. Mechanical description

7. Thread wiper (1) (vertical wiper: standard)

q
w
e
r
t
1. After thread trimming, the thread wiper signal is on and the thread wiper solenoid q operates.
2. When the plunger w operates in the direction of the arrow, the thread wiper crank assembly r attached to the end of
the thread wiper connecting rod e operates.
3. The wiper t attached to the thread wiper crank assembly r operates.
Thread wiper (2) (horizontal wiper: optional)
q
w
e
r
1. After thread trimming, the thread wiper signal is on and the thread wiper solenoid q operates.
2. When the plunger w operates in the direction of the arrow, T-wiper connecting rod assy S e also operates.
3. Thread wiper A r attached to T-wiper connecting rod assy e operates.
10

Chapter 2. Disassembly

1. Covers (1) 311E

q
w
r
Chapter 2. Disassembly
y
e
!2
o
!0
i
u
t
!1
!0
o
!3
1. Remove the screw, the top cover q, the belt covers w and the rear cover e.
2. Loosen shoulder screw r and remove the work clamp lifter connect rod t.
3. Remove the plunger pin u from the plunger y.
4. Remove the screw and the face plate i.
5. Remove the screw and the X-feed bracket covers o on the right and left and cover spacer !0 Y-feed bracket cover !1.
6. Remove the screw and XY-feed base covers (L) !2 and (R) !3.
11
Chapter 2. Disassembly
Covers (2) 311EL
!0
!1
o
t
y
u
r
q
e
i
w
u
o
1. Remove the screws, the top cover q, the belt cover w, and the frame side cover e.
2. Remove the plunger pin t from the plunger r.
3. Remove the screws, and the faceplate y.
4. Remove the screws, and X-axis feed bracket covers L and R u and Y- feed bracket cover i.
5. Loosen the screws, and remove the left and right feed bracket cover supports o in the direction of the arrow.
6. Remove the screws, and X-Y feed bracket covers L !0 and R !1.
Covers (3) 326E, 326EL
!0
!1
o
t
y
i
r
q
u
w
i
1. Remove the screws, the top cover q, the belt cover w, and the frame side cover e.
2. Remove the plunger pin t from the plunger r.
3. Remove the screws, and the faceplate y.
4. Remove the screws, and the bellows assy u.
5. Remove the screws and X-axis feed bracket cover assemblies L and R i.
6. Loosen the screws, and remove the left and right feed bracket cover supports o in the direction of the arrow.
7. Remove the screws, and X-Y feed bracket covers L !0 and R !1.
e
o
12

2. Feed mechanism

Chapter 2. Disassembly
t
e
1. Remove the screw, the needle q and the presser foot w and finger guard e.
2. Remove the bolt and the work clamp r.
3. Remove the screw, the feed plate t and the needle sub plate y.
y
r
q
w
13
Chapter 2. Disassembly

3. Presser foot mechanism

w
i
!1
!2
!0
q
e
r
t
!6
!5
o
!4
u
y
!3
1. Loosen the nut q, remove the adjust screw w, the spring guide e, and the spring r by lifting them from above of the
machine, and remove the washer t.
2. Loosen the bolt u of stepping work clamp arm R y, remove the shoulder screw i and the retaining ring !0 of the
presser bar lifter o from the faceplate, and then remove stepping work clamp arm F !1 and stepping link assy !2.
3. Push up the presser bar !3, and separate it from the presser bar bush !4.
(The presser bar lifter o, the cushion !5, and the needle bar clamp !6 will come off as a set.)
14

4. Needle bar mechanism

t
Chapter 2. Disassembly
q
e
i
!1
!0
o
!5
!4
r
!7
u
y
!2
y
!6
r
w
!2
!3
!3
1. Remove the rubber cap q.
2. Remove the needle bar thread guide w from the needle bar e.
3. Loosen the screw of the needle bar clamp r, and remove the needle bar e through the machine top.
4. Remove the needle bar clamp r from the thread take-up lever t.
(Remove the needle bar guide slide block u from the needle bar guide y.)
5. Remove the rubber cap i, loosen the set screw o, and remove the thread take-up support stud !0.
6. Remove the oil cap !1, loosen the set screw !3 of the counter weight !2, and remove the thread take-up lever !4.
(The thread take-up assembly !5 will come off.)
7. Remove the rubber cap !6, the screw !7, and the needle bar guide y.
(Do not remove them if possible to prevent the machine from overheating due to needle bar rubbing.)
15
Chapter 2. Disassembly

5. Upper shaft mechanism

e
w
q
r
!0
!1
o
r
t
y
u
i
!2
!0’
r
!6
!7
!5
r
!2
q
!1
!4
!3
1. Loosen the screw w and the set screw e of thread take-up crank q.
(The screw w should be loosened until its end comes off the upper shaft r.)
2. Remove the screw t, and the thread trimming solenoid y.
3. Remove the screw u, and the wick support i.
4. Remove the screw o, and the crank rod !0.
(At this time, lower the crank rod !0’ in the direction of the arrow.)
5. Loosen the set screws of the stepping work clamp cam !1 and the thread trimmer cam !2.
6. Remove the V belt !3, loosen the set screw !4, and remove the pulley !5.
7. Remove the screw !6 and the synchronizer !7.
8. Remove the upper shaft r in the direction of the arrow.
After that, remove the thread take-up crank q, the stepping work clamp cam !1, and the thread trimmer cam !2 from the upper shaft r, in this order.
16

6. Feed mechanism (Y axis) (1) 311E and 311EL

w
q
Chapter 2. Disassembly
e
r
t
1. Loosen the set screw and remove the X-feed shaft q.
2. Remove the screws and the work clamp arm w.
3. Tilt the machine head until it stops.
4. Remove the bolt of the Y-driving shaft holder e, the Y-driving shaft r and the X-feed shaft support t.
5. Raise the machine head.
17
Chapter 2. Disassembly
Feed mechanism (Y axis) (2)
r
q
w
e
!3
w
q
t
!6
!5
y
!2
!4
!6
u
i
o
!8
!9
!1
!0
!7
1. Remove the bolts, the Y-feed guide assembly q, the cross roller w, and the Y-feed bracket e.
2. Remove the screws, the X-feed bracket r, and the linear guide t.
3. Remove the bolts and the Y-driving pulse motor bracket y.
4. Remove the bolts and the Y-pulse motor u.
5. Loosen the set screws of the idle gear i and timing pulley A o, and remove Y-pulley shaft A !0 along with the retaining
rings. (The idle gear i, timing pulley A o, and the ball bearing !1 will come off.)
6. Loosen the set screw of timing pulley A !2, and remove the two retaining rings and Y-pulley shaft B !3.
7. Remove the bolts, the Y-driving pulse motor bracket !4, timing pulley A !2, the Y-timing belt !5, and micro bearings !6.
* To remove the Y-driving shaft holder !7, remove the bolt, the belt holder !8, the timing belt spacer, !9, and the Y-
timing belt !5.
18
Feed mechanism (Y axis) (3) 326E, 326E
r
w
e
q
q
Chapter 2. Disassembly
u
!1
i
t
y
!0
!2
o
!3
!4
1. Secure the slider support shaft w of the work clamp assy q using the supplied set screw e.
(To prevent the slider support shaft w and the slider r from suddenly protruding, be sure to do this job.)
2. Loosen the set screw, and remove the X-feed shaft t.
3. Remove the two bolts, and the work clamp assy q.
4. Remove the two bolts, and X-feed shaft support 326 y.
5. Remove the four bolts, the Y-feed pulse motor bracket u, and the Y-driving shaft i.
6. Remove the two bolts, and Y-feed bracket cover F o.
7. Remove the four bolts, Y-feed guide assy 326 !0, cross roller 326 !1, and the Y-feed bracket !2.
8. Remove the eight set screws, the X-feed bracket !3, and the linear guide !4.
19
Chapter 2. Disassembly

7. Feed mechanism (X axis) (1) 311E

q
y
t
w
e
!0
r
!5
!6
i
y
!4
!3
!1
i o
!2
!0
u
1. Remove the rubber cap q.
2. Loosen the set screws of X-timing pulley B311 w and timing pulley A e, and remove the X-timing pulley shaft t and
retaining ring r. (X-timing pulley B311 w and timing pulley A e, and the two ball bearings y will come off.)
3. Loosen the set screw of timing pulley B u, and remove the retaining ring i and X-pulley shaft B o.
(Timing pulley B u, X-timing belt B311 !0, and the two ball bearings !1 will come off.)
4. Remove the bolts !2 from adjustment holes, and separate X-pulley base B !3.
5. To remove the X-feed bracket !4, remove the eight set screws, the belt holder !5, the timing belt spacer !6, and X-timing
belt B311 !0.
20
Chapter 2. Disassembly
Feed mechanism (X axis) (2) 311EL and 326E, 326EL
@3
o
!1
!0
!3
!6
!2
!5
!4
!7
!8
y
u
!9
q
r
!7
r
w
e
@6
@2
@0
@5
@4
@1
t
@2
i
1. Remove the bolt w and the washer e of X-pulley bracket L q, and the adjust bolt r.
2. Remove the bolt y and the washer u of X-pulley bracket R t, and the adjust bolt i.
3. Remove X-timing belt A326 o.
4. Loosen the set screw !1 of X-timing pulley B326 !0, and the set screw !3 of timing pulley A !2, and remove the back
retaining ring !5 of the X-timing pulley shaft !4, and pull out the X-timing pulley shaft !4 in the direction of the arrow. (At this time, timing pulley !2, X-timing belt B326 !6, X-timing pulley B326 !0, X-timing belt A326 o, and the two micro bearings !7 will come off.)
5. Loosen the set screw !9 of timing pulley B !8, remove the front retaining ring @1 of X-pulley shaft R @0, and pull out X-
pulley shaft R @0 in the direction of the arrow. (At this time, X-timing belt B326 !6, timing pulley B !8, and the two micro bearings @2 will come off.)
6. Remove the bolt @4 on the back of the X-feed bracket @3, the belt holder @5, the timing belt spacer @6, and X-timing belt
B326 !6.
21
Chapter 2. Disassembly

8. Lower shaft mechanism

u
y
w
t
r
q
e
!2
!1
!0
o
i
1. Tilt the machine head until it stops.
2. Remove the bobbin case q and the shuttle hook w.
3. Loosen the bolt e, and remove the driver r and the retaining ring t.
4. Loosen the set screw of the set screw collar y, and remove the lower shaft assembly u from the rear of the machine.
5. Loosen the set screw i.
6. Loosen the set screw of the set screw collar o, and remove the rock gear shaft !0 from the rear of the machine.
7. Remove the set screw collar o, the rock gear !1, and the crank rod !2.
8. Raise the machine head.
22
Loading...
+ 120 hidden pages
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use