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, butter |
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, butter |
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, butter |
|
