54
5. PERFORMANCE CHECKLIST
GENERAL PROBLEMS
0DFKLQHGRHVQRWVHZ
3RZHUVZLWFKLVWXUQHGRII
-
7XUQRQWKHVZLWFK
%XWWRQKROHOHYHULVQRWUDLVHGZKHQVHZLQJVWLWFKSDWWHUQV
±5DLVHEXWWRQKROHOHYHU
%XWWRQKROHOHYHULVQRWORZHUHGZKHQVHZLQJEXWWRQKROH
±/RZHUEXWWRQKROHOHYHU
%REELQZLQGHULVHQJDJHG±'LVHQJDJHEREELQZLQGHUVHH
SDJH
3UHVVHUIRRWLVQRWORZHUHG/RZHUSUHVVHUIRRW
0DFKLQHMDPVNQRFNV
7KUHDGLVFDXJKWLQKRRN
-
&OHDQKRRNVHHSDJH
1HHGOHLVGDPDJHG
-
5HSODFHQHHGOHVHHSDJH
Fabric does not move.
3UHVVHUIRRWLVQRWORZHUHG/RZHUSUHVVHUIRRW
6WLWFKOHQJWKLVWRRVKRUW/HQJWKHQVWLWFKOHQJWK
)HHGGRJVDUHORZHUHG5DLVHIHHGGRJV
STITCHING PROBLEMS
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1HHGOHLVQRWDOOWKHZD\XSLQWRQHHGOHFODPSVHHSDJH
1HHGOHLVEHQWRUEOXQW5HSODFHQHHGOHVHHSDJH
0DFKLQHLVQRWWKUHDGHGFRUUHFWO\VHHSDJH
7KUHDGLVFDXJKWLQKRRN
-
&OHDQKRRNVHHSDJH
6WLWFKHVDUHLUUHJXODU
1HHGOHVL]HLVQRWFRUUHFWIRUWKUHDGDQGIDEULFVHHSDJH
0DFKLQHLVQRWWKUHDGHGFRUUHFWO\VHHSDJH
7RSWKUHDGWHQVLRQLVWRRORRVHVHHSDJH
)DEULFLVEHLQJSXOOHGRUSXVKHGDJDLQVWPDFKLQHIHHGLQJ
action. -
*XLGHLWJHQWO\
%REELQKDVQRWEHHQZRXQGHYHQO\
-
5HZLQGEREELQ
Needle breaks.
)DEULFLVEHLQJSXOOHGRUSXVKHGDJDLQVWPDFKLQHIHHGLQJ
action. -
*XLGHLWJHQWO\
1HHGOHVL]HLVQRWFRUUHFWIRUWKUHDGDQGIDEULFVHHSDJH
1HHGOHLVQRWDOOWKHZD\XSLQWRWKHQHHGOHFODPSVHHSDJH
23).
7ZLQQHHGOHLVEHLQJXVHGEXWVWLWFKZLGWKLVVHWWRRZLGHVHH
SDJH
THREAD PROBLEMS
Thread bunches.
7RSDQGEREELQWKUHDGVDUHQRWGUDZQEDFNXQGHUSUHVVHU
IRRWEHIRUHVWDUWLQJVHDP
-
'UDZERWKWKUHDGVEDFNXQGHU
SUHVVHUIRRWDERXWLQFKHVFPDQGKROGXQWLODIHZ
stitches are formed.
Needle thread breaks.
0DFKLQHLVQRWWKUHDGHGFRUUHFWO\VHHSDJH
7RSWKUHDGWHQVLRQLVWRRWLJKWVHHSDJH
* Needle is bent. -
5HSODFHQHHGOHVHHSDJH
1HHGOHVL]HLVQRWFRUUHFWIRUWKUHDGDQGIDEULFVHHSDJH
Bobbin thread breaks.
%REELQFDVHLVQRWWKUHDGHGFRUUHFWO\VHHSDJH
* Lint accumulates in bobbin case or hook.
-
5HPRYHOLQWVHHSDJH
Fabric puckers.
7RSWKUHDGWHQVLRQLVWRRWLJKW
-
$GMXVWWKUHDGWHQVLRQVHHSDJH
6WLWFKOHQJWKLVWRRORQJIRUVKHHURUVRIWIDEULF
-
6KRUWHQVWLWFKOHQJWK
