Singer 8768 - Troubleshooting and Help; Machine Performance Checklist

54
5. PERFORMANCE CHECKLIST
GENERAL PROBLEMS
0DFKLQHGRHVQRWVHZ
3RZHUVZLWFKLVWXUQHGRII
- 7XUQRQWKHVZLWFK
%XWWRQKROHOHYHULVQRWUDLVHGZKHQVHZLQJVWLWFKSDWWHUQV
 ±5DLVHEXWWRQKROHOHYHU
%XWWRQKROHOHYHULVQRWORZHUHGZKHQVHZLQJEXWWRQKROH
 ±/RZHUEXWWRQKROHOHYHU
%REELQZLQGHULVHQJDJHG±'LVHQJDJHEREELQZLQGHUVHH
SDJH
3UHVVHUIRRWLVQRWORZHUHG/RZHUSUHVVHUIRRW
0DFKLQHMDPVNQRFNV
7KUHDGLVFDXJKWLQKRRN
- &OHDQKRRNVHHSDJH
1HHGOHLVGDPDJHG
- 5HSODFHQHHGOHVHHSDJH
Fabric does not move.
3UHVVHUIRRWLVQRWORZHUHG/RZHUSUHVVHUIRRW
6WLWFKOHQJWKLVWRRVKRUW/HQJWKHQVWLWFKOHQJWK
)HHGGRJVDUHORZHUHG5DLVHIHHGGRJV
STITCHING PROBLEMS
0DFKLQHVNLSVVWLWFKHV
1HHGOHLVQRWDOOWKHZD\XSLQWRQHHGOHFODPSVHHSDJH
1HHGOHLVEHQWRUEOXQW5HSODFHQHHGOHVHHSDJH
0DFKLQHLVQRWWKUHDGHGFRUUHFWO\VHHSDJH
7KUHDGLVFDXJKWLQKRRN
- &OHDQKRRNVHHSDJH
6WLWFKHVDUHLUUHJXODU
1HHGOHVL]HLVQRWFRUUHFWIRUWKUHDGDQGIDEULFVHHSDJH
0DFKLQHLVQRWWKUHDGHGFRUUHFWO\VHHSDJH
7RSWKUHDGWHQVLRQLVWRRORRVHVHHSDJH
)DEULFLVEHLQJSXOOHGRUSXVKHGDJDLQVWPDFKLQHIHHGLQJ
action.
- *XLGHLWJHQWO\
%REELQKDVQRWEHHQZRXQGHYHQO\
- 5HZLQGEREELQ
Needle breaks.
)DEULFLVEHLQJSXOOHGRUSXVKHGDJDLQVWPDFKLQHIHHGLQJ
action.
- *XLGHLWJHQWO\
1HHGOHVL]HLVQRWFRUUHFWIRUWKUHDGDQGIDEULFVHHSDJH
1HHGOHLVQRWDOOWKHZD\XSLQWRWKHQHHGOHFODPSVHHSDJH
23).
7ZLQQHHGOHLVEHLQJXVHGEXWVWLWFKZLGWKLVVHWWRRZLGHVHH
SDJH
THREAD PROBLEMS
Thread bunches.
7RSDQGEREELQWKUHDGVDUHQRWGUDZQEDFNXQGHUSUHVVHU
IRRWEHIRUHVWDUWLQJVHDP
- 'UDZERWKWKUHDGVEDFNXQGHU
SUHVVHUIRRWDERXWLQFKHVFPDQGKROGXQWLODIHZ
stitches are formed.
Needle thread breaks.
0DFKLQHLVQRWWKUHDGHGFRUUHFWO\VHHSDJH
7RSWKUHDGWHQVLRQLVWRRWLJKWVHHSDJH
* Needle is bent.
- 5HSODFHQHHGOHVHHSDJH
1HHGOHVL]HLVQRWFRUUHFWIRUWKUHDGDQGIDEULFVHHSDJH
Bobbin thread breaks.
%REELQFDVHLVQRWWKUHDGHGFRUUHFWO\VHHSDJH
* Lint accumulates in bobbin case or hook.
- 5HPRYHOLQWVHHSDJH
Fabric puckers.
7RSWKUHDGWHQVLRQLVWRRWLJKW
- $GMXVWWKUHDGWHQVLRQVHHSDJH
6WLWFKOHQJWKLVWRRORQJIRUVKHHURUVRIWIDEULF
- 6KRUWHQVWLWFKOHQJWK