Singer 471U - Tension Releasing Mechanism

ini Tension releasing mechanism
0
0
O
0
1. When the tension releasingcam segment F O attached to the feedcam pushesagainst the tension releasingpin
thetension releasing leverS0 fixed onthetension releasing lever O pivotsonthestud screw 0 and pushes
against the tension releasing pin 0.
2. The tension releasing pin 0 pushes against the tension releasing disc 0 and releases the auxiliary tension (f).
3. Whenthe clutch leverenters thestop cam,the tension releasing lever0 linkedto the clutch levermovesinthe
direction of the arrow.
The end of the tension releasing rod 0 is fixed to the tension releasing rod support 0 and transmits the
movement to the scissors push lever 0 through the stud screw 0.
The thread take-up leverarm 0 isfixed on the end ofthescissorspush levershaft 0, and the scissorspush lever
shaft causes the thread take-up lever link 0 fixed to the thread take-up lever arm 0 to operate.
A back-and-forth motion is transmitted to the main tension releasingplate 0 fixed on the top of the tension
releasing lever link 0, and at the sametimethe main tension ® is released, the tension disc split tongue 0
attached to the end of thread take-up lever link 0 releases the tension disc ©.
4.
6.
-10-
From the library of: Superior Sewing Machine & Supply LLC