Brother S-7220D Instruction Manual page 78

Problem
Broken needle
Oil gauge (1) is not visible
in oil gauge window.
Sewing machine does not
operate when power is
turned on and treadle is
pressed.
Machine does not operate
at high speed.
Machine stops during
sewing.
Possible cause
NOTE
• It is extremely dangerous to leave any pieces of
broken needle sticking in the material.
If the needle breaks, search for all pieces until the
whole of the needle is found again.
• Furthermore, we recommend that thorough steps be
taken to account for such needles to comply with
product liability regulations.
• Is the oil tank empty?
Fill the oil tank with oil.
• Is the power supply for the control box
disconnected?
Insert the connectors securely.
• Is the operation panel set to a screen other than a
screen where sewing is possible?
Switch the operation panel to a screen where sewing
is possible, such as the home screen.
• Is the sewing speed setting or backtack stitch speed
setting too slow?
Use the sewing speed key to set the high speed.
• Has the sewing pattern been set to a fixed stitch
pattern?
In main sewing mode, set the sewing pattern to
something other than "Fixed stitch".
• Is the power supply voltage too low?
Check the power supply voltage.
(If the power cord is too long or too many appliances
are being run from a single outlet, this may cause
voltage drops which will in turn cause the reset
function to activate and stop the machine, even if the
power supply itself is normal.)
Page
See Lubrication on page 7.
See Connecting the cords
on page 9.
1
See Using the operation
panel (Basic operations)
on page 14.
See Using the operation
panel (Basic operations)
on page 14.
1
1
68