– 32 –
(12) Adjustment of upper feed roller
1. Adjustment of upper feed roller
(1) The standard clearance is 0.08mm minimum to 0.13mm maximum between the lower position of the
upper feed roller
and the upper face of the throat plate .
(2) The standard front/rear and right/left clearances shall be uniform between the upper feed roller
and
the feed dog .
(3) The standard positioning of the upper feed roller shall be free from right and left rattling, permitting
smooth movement up and down.
0.08mm to 0.13mm
Unified right and left
clearances
Standard clearance
toward the throat plate
Right and left directions
Frame shaft hole of the
upper feed roller
Vertical direction
Standard Adjustment
To Next Page
Need help?
General
