background image

 3 

    

3333----4 Needle height

4 Needle height

4 Needle height

4 Needle height    

When the needle bar is at the top of its stroke, 
adjust distance should be 11.3mm from the top 
surface of the needle plate to the point of the needle. 
To make this adjustment, loosen screw A and move 
the needle bar up or down. 

 
 
 
 
 
 
 
 
 
 
 
 

3333----5 Needle/looper front

5 Needle/looper front

5 Needle/looper front

5 Needle/looper front----to

to

to

to----back relationship

back relationship

back relationship

back relationship and p

 and p

 and p

 and position of the needle guar

osition of the needle guar

osition of the needle guar

osition of the needle guardddd    

The clearance between point of the looper and needle should be 0~0.05mm. 
Then adjust the needle guard (rear) so that it presses needle at approximately 0.2~0.3mm 
to the front. (refer to instruction for RX series 6) 

 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

 

 

< Note > 

After the above adjustment, check to make sure 

each needle drops into the center of each needle 

hole . 

 

 

 

 

Summary of Contents for RX9701J Series

Page 1: ...INSTRUCTION Industrial Sewing Machines First published July 1998 No 980058 ...

Page 2: ...the machine check to make sure the pulley cover safety cover etc are secured 3 Before adjusting cleaning threading the machine or replacing the needle be sure to turn off the power 4 Never start the machine with no oil in the reservoir 5 Refer to the parts list and instruction or RX as well as this instruction manual before maintenance If the machine includes a thread trimmer read and study the in...

Page 3: ...nd height for installing the looper 2 3 2 Looper left to right movement 2 3 3 Looper setting distance 2 3 4 Needle height 3 3 5 Needle looper front to back relationship and position of the needle guard 3 3 6 Changing the looper orbit 4 3 7 Changing the amount of the looper front to back movement 5 4 FEED DOGS STITCH LENGTH 4 1 Feed dog height tilt 6 4 2 Feed dog front to back position 6 4 3 Stitch...

Page 4: ...hich the machine pulley runs 1 Machine speed direction in which the machine pulley runs Refer to the table below for maximum and standard speeds of the Series To extend machine life run the machine approximately 15 20 below the maximum speed for the first 200 hours of operation approx 1 month Then run the machine at the standard speed The machine pulley turns clockwise as the handwheel does as see...

Page 5: ...ent right movement right movement right movement When the point of the looper moving to the left or right has reached the left side of the needle distance as from the top of the needle s eye to the point of the looper should be the same 0mm See the illustration on the below To adjust the timing of the looper to the needles remove the machine cover loosen screws A on the timing pulley upper and shi...

Page 6: ...r front 5 Needle looper front to to to to back relationship back relationship back relationship back relationship and p and p and p and position of the needle guar osition of the needle guar osition of the needle guar osition of the needle guard d d d The clearance between point of the looper and needle should be 0 0 05mm Then adjust the needle guard rear so that it presses needle at approximately...

Page 7: ...the point of the looper and the left needle when the looper moves to the left decreases The clearance when the looper moves to the right increases Then the point of the looper touches the right needle Skip stitching may occur when the looper moves to the right A thread chain is not produced smoothly When the timing mark is at point D The clearance between the point of the looper and the left needl...

Page 8: ...ts travel should be 0 1 0 2mm The needle is pressed to the back The amount of the looper front to back movement is factory set properly for needle count 21 Nm130 If you use needle counts Nm80 90 adjust the amount as required Remove the inside cover Loosen nut B while holding screw A for the looper front to back adjusting pin with a screwdriver Then move the front to back rod front or back To incre...

Page 9: ... their stroke the feed dogs should be parallel with the top surface of the needle plate To make this adjustment loosen screws D and move shaft E If the fabric to be used is thick and soft install the feed dogs slightly higher than standard to feed the fabric smoothly 4 4 4 4 2 2 2 2 Feed dog front Feed dog front Feed dog front Feed dog front to to to to back position back position back position ba...

Page 10: ...es the feeding amount can be changed mechanically up to 4 5mm To achieve a feeding amount of 4 5mm loosen screw F on the adjusting knob and release the stop position by moving stop pin G Adjust while checking the front or back clearance so that the needle plate will not touch the feed dog 5 CLEANING THE MACHINE At the end of each day remove the needle plate and clean the slots of the needle plate ...

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