Service manual

S-4000 LT Omro
n
e-mail: [e-mail]; [e-mail]; website: www.amfreece.com
Phone: [phone]; Fax: [phone]
Released 05/2010
2-4
TROUBLESHOOTING
SYMPTOM
POSSIBLE CAUSE
PROBABLE SOLUTION
Thread not trimmed at the
end of the cycle
Se
wing motor turns,
machine does not sew
Machine sews continually,
does not stop
Zero pressure on regulator
Low air pressure
The material is not trimmed
or sewn work
Trimming knife damaged
Low air pressure at trimming
cylinder
Flow control valve to tension
cylinder closed
Incorrect loopers timing
Incorrect setting of trimming
delay
Trimming length incorrectly set
Belt broken or loose
Stopping sensor adjusted
incorrectly
Shut off valve closed regulator
Filter element dirty
Air fitting or tubing obstruction
Trimming knife is damaged
The cutting edge or the throat
plate is damaged
Low pressure
Replace
Check supply pressure
See section E14 point 3
See section E12
Change Trim delay parameter
Change Trim time parameter
See section E18 for changing
See section E17 for correct
position adjustment
Open the shut off valve
Change the filter element
Check supply guides
Change
Change
Check the air supply