Singer 247-5, 247-4 User Manual

Specifications and Main Features

The two model types are 247-4 and 247-5
Additionally, there are three needles and two loopers for features.
Yes, there is a vertical trimmer.
The operation mechanism there is differential feeding used for gathering purposes.
The stroke length of a needle bar includes 1-7/32" for the 247-4 model and 1-3/8" for the 247-5 model.
The presser foot clearance of model 247-4 is 5/32" and 7/32" of model 247-5.
The gauge settings include distance between left and center patches between for shifts between 17 to 24 and for patches between center and right 18 to 21. The maximum distance from outside needles includes 3/8 mm.
Depending on the type of material and the operation the maximum speed is around 2800 RPM.
One should use TYPE B or TYPE D oil.
An extensice part for repar or mainenance is also included for reference.
A range of mix and relationships is included for greater efficiency.

Following the procedures from the question, What is the best type of oil that in the sewing machine is? Use TYPE B oil or TYPE D oil sold by the sewing machine company.
Use the type of oil mentioned above for at least 15-20 times in a day when the machine is continuously working.
Q: In case the machine is malfunctioning what steps should I take?
A: All oil holes should be inspected and lubricated meticulously and any and all loose or worn-out components should be repaired or replaced.
Q: Is it fine to utilize other needles with this machine?
A: It is recommended to equip oneself with Singer needles made particularly for Singer sewing machines.
Q: What would be the upper limit of the machines RPM?
A: The machines RPM can rise to as high as 2800 depending on the working material.
Q: How can I go about adjusting the needle settings?
A: Depending on the project, needle settings can be modified by changing the gauge between the left, center, and right needles to a specific adjustment setting.

+ 22 hidden pages