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  3. INSTALLING THE BELT COVER AND THE BELT

(Installation procedure)

1)  Remove belt cover A 

.

2)  Pass the 14P connector which puts cables to-

gether and the air tube through the slotted hole 
in the table.

3)  Put the V-belt on the sewing machine pulley.
4)  Adjust the belt tension.
5)  Pass synchronizer support shaft 

 and washer 

 through mounting hole in belt cover A 

 and 

fix the synchronizer support shaft with washer 

 and nut 

.

6)  Mount belt cover A 

.

7)   Install belt cover B 

 on the table.

WARNING :

To protect against possible personal injury due to abrupt start of the machine, be sure to start the 

following work after turning the power off and ascertaining that the motor is at rest.

Slotted hole in 

the table

V-belt

❸❹

Be sure to use the sewing machine with 
safety devices 

 and 

 installed.

Summary of Contents for LU-2810-6

Page 1: ...LU 2810 6 2860 6 INSTRUCTION MANUAL ...

Page 2: ...OMPONENTS 6 9 WIRING THE MACHINE HEAD 8 10 AIR PIPING AND MACHINE HEAD WIRING 11 11 SEWING SPEED TABLE 12 CAUTION This Instruction Manual for the LU 2810 6 2860 6 only describes their differences from the standard models LU 2810 2810 7 LU 2860 2860 7 For safety related information carefully read and fully understand Safety precautions described in the Instruction Manual for the standard models bef...

Page 3: ...tation A weighted value of 83 0 dB Includes KpA 2 5 dB according to ISO 10821 C 6 2 ISO 11204 GR2 at 3 000 sti min Sound power level LWA A weighted value of 88 5 dB Includes KWA 2 5 dB according to ISO 10821 C 6 2 ISO 3744 GR2 at 3 000 sti min Equivalent continuous emission sound pressure level LpA at the workstation A weighted value of 83 0 dB Includes KpA 2 5 dB according to ISO 10821 C 6 2 ISO ...

Page 4: ...hronizer support shaft and washer through mounting hole in belt cover A and fix the synchronizer support shaft with washer and nut 6 Mount belt cover A 7 Install belt cover B on the table WARNING To protect against possible personal injury due to abrupt start of the machine be sure to start the following work after turning the power off and ascertaining that the motor is at rest Slotted hole in th...

Page 5: ...so as to prevent the synchronizer from rotat ing Be sure to remove the connector for the sewing machine for the sake of safety be fore checking the upper and lower positions of the synchronizer Synchronizer 4 ADJUSTING THE BELT TENSION Adjust the belt tension with the height of the motor so that the belt sags 15 mm when the center of V belt is applied with a 9 8 N load 15m m Motor pulley Handwheel...

Page 6: ...dwheel 70 po sition Adjust the lower stop position needle down stop position so that the needle bar stops at the position where the needle bar goes up from the lower dead point 180 by approximately 13 mm 120 posi tion The position which is reached by turning the handwheel from the lower end of the needle bar in the reverse direction of rotation of the main shaft di rection C Marker dot Marker dot ...

Page 7: ...andwheel by loos ening setscrew How to assemble the handwheel Check to make sure that handwheel A does not come in contact with cylinder when screw of handwheel A is brought to the position where it is aligned with the flat section of main shaft Then fix the handwheel on main shaft At this time main shaft protrude from handwheel by ap proximately 7 mm Flat section ...

Page 8: ... screw and washer supplied with the unit WARNING To protect against possible personal injury due to abrupt start of the machine be sure to start the following work after turning the power off and ascertaining that the motor is at rest WARNING To protect against possible personal injury due to abrupt start of the machine be sure to start the following work after turning the power off and ascertaini...

Page 9: ...e with screw spring washer and nut which are supplied with the unit 2 Install couplings and on regulator 3 Install mounting plate on the underside of the table 4 Connect ø6 air tube coming from the solenoid valve asm to coupling 2 Connecting the air tube and the solenoid valve cable Connect the air tubes and the solenoid valve supplied with the unit to the locations shown below Solenoid valve Tube...

Page 10: ...ead are as described below Refer to 2 Details of connectors on the next page for details of connectors to and layout of the pins Tension release solenoid upper side Tension release solenoid lower side Alternate up down limit switch Reverse feed switch 6 gang switch Thread trimming solenoid right side Thread trimming solenoid left side Presser bar lifting cylinder solenoid valve CN151 Alternate up ...

Page 11: ...ector pin number Connector When connecting the connectors to the control box prepare a junction cord using the below stated connector pin terminal Part number of the target connector HK034620040 MOLEX 5559 04P Part number of the target pin terminal HK034630000 MOLEX 5558TL CN158 4P connector alternate up down switch Pin No Part name Color of cable Remarks 1 Alternate up down limit switch lower sid...

Page 12: ... number of the target connector HK034620160 MOLEX 5559 16P Part number of the target pin terminal HK034630000 MOLEX 5558TL Pin No Part name Color of cable Remarks 1 6 gang switch Orange red dot 1 5V Do not connect the 24V connector If the 24V connector is connected to this switch the LED burnout can occur 2 6 gang switch Orange black dot 1 SW1 DLSW 3 Gray red dot 1 SW2 Automatic reverse feed prohi...

Page 13: ...lack Presser bar lifting cylinder 2 Solenoid valve CN152 Black Reverse feed cylinder 3 Solenoid valve CN153 Black Alternate up down cylinder 4 5 Solenoid valve CN155 Black 2 pitch cylinder 6 7 Solenoid valve CN151 Red 24V 8 Solenoid valve CN152 Red 24V 9 Solenoid valve CN153 Red 24V 10 11 Solenoid valve CN155 Red 24V 12 2 1 4 3 5 6 8 7 10 9 11 12 10 AIR PIPING AND MACHINE HEAD WIRING Air pipe and ...

Page 14: ...ccording to the sewing conditions Amount of alternate vertical movement of the walking foot and presser foot Stitch length 7 mm or less Stitch length More than 7 mm and 9 mm or less Less than 3 mm 3 000 sti min 2 000 sti min More than 3 mm and 4 mm or less 2 400 sti min 2 000 sti min More than 4 mm and 5 mm or less 2 000 sti min 2 000 sti min More than 5 mm and 9 mm or less 1 800 sti min 1 800 sti...

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