Brother International BAS-343E Instruction Manual - English - Page 64

Fixed knife blade, Tension pulley position

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14. Troubleshooting Problem Cause Check Remedy Page Unstable upper thread length Improper tension and height of thread take-up spring Improper adjustment of sub tension Needle up stop position fluctuates. Thread take-up spring tension and height sub tension See "Unstable needle up stop position." Fixed knife is blunt. Fixed knife blade Adjust the tension and height of the thread 13 take-up spring. Adjust the sub tension. 12 Sharpen or replace the fixed knife. Unstable needle up stop position Inadequate adjustment of V belt tension Electrical trouble Tension pulley position Refer to the details for [E.22] in the error code table. Adjust the tension of the V beit using the tension 5 pulley. 50 BAS-343E 57

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14. Troubleshooting
57
BAS-343E
50
12
←
�
←
13
5
Check
Remedy
Problem
Cause
Page
Unstable upper thread
length
Unstable needle
up
stop position
Electrical trouble
Inadequate adjustment
of V belt tension
Fixed knife is blunt.
Needle up stop position
fluctuates.
Improper adjustment
of sub tension
Improper tension and height
of thread take-up spring
Thread take-up spring
tension and height
sub tension
See "Unstable needle up
stop position."
Fixed knife blade
Tension pulley position
Refer to the details for [E.22]
in the error code table.
Adjust the tension and
height of the thread
take-up spring.
Adjust the sub tension.
Sharpen or replace the
fixed knife.
Adjust the tension of the
V beit using the tension
pulley.