3.4
Lubrication
Precaution
When you first operate your machine after set up or after an extended period of disuse, run your machine at 2,000 to 2,500 spm for about 10 minutes for the purpose of
Before turning the machine on, fill oil reservoir ‘1’ with sewing machine oil up to ‘MAX’ mark ‘A’ (Figure 7).
When the oil level lowers below ‘MIN’ mark ‘B’, refill the oil reservoir with the specified oil.
When you operate the machine after lubrication, you will see splashing oil through oil sight window ‘2’ if the lubrication is adequate.
Note that the amount of the splashing oil is unrelated to the amount of the lubricating oil.
Figure 7
3.5
Thread
Lever Oil Supply
Adjustment
Adjust the amount of oil supplied to the thread
The minimum amount of oil is reached when marker dot ‘A’ is brought close to needle bar crank ‘2’ by turning the adjusting pin ’1’ in direction ’B’.
The maximum amount of oil is reached when marker dot ‘A’ is brought to the position just opposite from the needle bar crank by turning the adjusting pin ’1’ in direction ‘C’.
Figure 8
High Speed Straight Lockstitch Sewing Machine Instruction Manual and Parts List 8