Brother International S-7200C Instruction Manual - English - Page 73

Is the power supply connector, disconnected from the control

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14. TROUBLESHOOTING Problem 13 Broken needles Possible cause y Is the material being pushed or pulled with excessive force during sewing? y Is the needle properly installed? If it is incorrect, install the needle correctly. y Is the needle bent, is the needle tip broken, or is the needle hole blocked? Replace the needle. y 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. y Is the needle timing too advanced with respect to the feed dog? Retard the needle timing. Caution 0469M y 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. y Furthermore, we recommend that through steps be taken to account for such needles to comply with product liability regulations. 14 Oil gauge (1) is not visible y Is the oil tank empty? in oil gauge window. (-[]0[], []3[] specifications) Fill the oil tank with oil. Page 15 60* 61* 60* 8 4262M 15 Machine does not operate y Is the power supply connector when power is turned on disconnected from the control and treadle is pressed. box? Insert the connector securely. 12, 13 4263M 16 Machine does not operate y Is the sewing speed setting or backtack speed setting incorrect? at high speed. Use the sewing speed control keys to set the high speed. (G50 operation panel) 20 Set the maximum sewing speed to a higher speed (G10 operation panel) 38* 17 Machine stops during y Is the fixed stitch key turned on? sewing. Press the fixed stitch key so that the indicator turns off. (G50 23 operation panel) y 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.) S-7200C 66

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S-7200C
14. TROUBLESHOOTING
66
Problem
Possible cause
Page
13
Broken needles
y
Is the material being pushed or pulled with excessive force during
sewing?
y
Is the needle properly installed?
If it is incorrect, install the needle correctly.
y
Is the needle bent, is the needle tip broken, or is the needle hole
blocked?
Replace the needle.
y
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.
y
Is the needle timing too advanced with respect to the feed dog?
Retard the needle timing.
y
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.
y
Furthermore, we recommend that through steps be taken to
account for such needles to comply with product liability
regulations.
15
60*
61*
60*
14
Oil gauge (1) is not visible
in oil gauge window.
y
Is the oil tank empty?
(-[]0[], []3[] specifications)
Fill the oil tank with oil.
8
15
Machine does not operate
when power is turned on
and treadle is pressed.
y
Is the power supply connector
disconnected from the control
box?
Insert
the
connector
securely.
12, 13
16
Machine does not operate
at high speed.
y
Is the sewing speed setting or backtack speed setting incorrect?
Use the sewing speed control keys to set the high speed. (G50
operation panel)
Set the maximum sewing speed to a higher speed (G10
operation panel)
20
38*
17
Machine
stops
during
sewing.
y
Is the fixed stitch key turned on?
Press the fixed stitch key so that the indicator turns off. (G50
operation panel)
y
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.)
23
*
Caution
0469M
4262M
4263M