Repair knowledge: maintenance

 Lubrication instructions

Parts

Times

Remark

1)Thread take-up lever gears
 Once a week, No.2 white oil
 
2)Connecting rod and front & rear metal parts
 Once a week, No.2 white oil 
 
3)Needle bar case slide rails
 Once a mouth, Grease
Remove cover plate of needle bar case
4)Needle bar sliding parts
 Once a week, No.2 white oil
5)Rotary hooks
 1-2 times a week, No.2 white oil 
Clean with a brush before oil
6)Gears for rotary hooks
 Once per 2-3 months,Grease
Remove needle bar
7)Driving chain
 Once a week
 
8)Main shaft of needle bar driver
 Once a week, No.2 white oil
Remove cover plate of needle bar case
9)Frame driving rails
 Once a week, Grease
 

Cleaning instructions

Cleaning parts

Cleaning times Remark
1)Air filter of stop motor driver box
 Once a week
 
2)Air filter of power supply box
 Once a week
 
3)Frame guide rails
 Once a week (before oil)
 
4)Needle bar case slide rails
 Before oil
 
5)Rotary hooks
 Before oil
 With a brush
6)Thread take-up springs
 Every day
 
7)Other parts
 Clean properly