Brother S-7200B Instruction Manual page 67

Problem
13 Broken needles
14 Oil gauge (1) is not visible
in oil gauge window.
15 Machine does not operate
when power is turned on
and treadle is pressed.
16 Machine does not operate
at high speed.
17 Machine stops
sewing.
Is the material being pushed or pulled with excessive force during
sewing?
Is the needle properly installed?
If it is incorrect, install the needle correctly.
Is the needle bent, is the needle tip broken, or is the needle hole
blocked?
Replace the needle.
Is the needle and rotary hook timing correct?
Adjust the height of the needle bar.
Adjust the clearance between the needle and the tip of the
rotary hook.
Is the needle timing too advanced with respect to the feed dog?
Retard the needle timing.
Caution
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 we recommend that through
steps be taken to account for such needles to comply with
product liability regulations.
0469M
Is the oil tank empty?
(-[]0[], []3[] specifications)
Fill the oil tank with oil.
2195M
Is the power supply connector
disconnected from the control
box?
Insert
securely.
Is the sewing speed setting or backtack speed setting incorrect?
Use the sewing speed control keys to set the high speed.
during Is the fixed stitch key turned on?
Press the fixed stitch key so that the indicator turns off.
Is the power supply voltage too low?
Check the power supply.
(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.)
Possible cause
the connector
S-7200B
14. TROUBLESHOOTING
Page
13
54*
55*
54*
8
11
2196M
18
18
*
60