Service manual

2-3
S-105
Released 01/2010
e-mail: service@amfreece.cz; parts@amfreece.cz; website: www.amfreece.com
Phones: +420 582 309 146 (Service); +420 582 309 286 (Spare Parts); Fax: +420 582 360 606
TROUBLESHOOTING
Machine fails to
stitch, but completes
the cycle
Weak stitch
lever
spring
Faulty stitch lever bumper
Faulty clamp lever spring
Replace the spring
17.0026.3.126
Replace the bumper
11.2016.0.000
Replace the spring
17.0026.3.126
Machine fails to stop
stitching
Incorrect stop mechanism
function
Damaged stop mechanism teeth
Broken tension spring
Correctly adjust the pressure
Replace or correctly adjust
Replace 01.5055.0.000
The machine fails
Change the plugs
Replace the belt
a) Replace drive lever spring
01.5015.0.000
b) Correct the idler pulley
travel
Replace 17.0033.5.113
Correctly position the collar
and tighteen the screw
Adjust pressure on the spring
01.5019.0.000
Incorrect motor rotation
Missing left belt
Carriers dogs are disengaged
Carriers dogs are broken
Idler pulley collar clamping
screw loose
Incorrect pressure on starting
lever
Motor started
and ran for a short
period, then stopped
Excessive cutting pressure
Stitch mechanism
is not rotating
Left belt tension is not correct
Re-adjust cutting pressure
Ensure the drive mechanism
releases correctly
Re-adjust tension
Machine fails to
stitch and stop
Incorrect stitch lever function
Locked stitch mechanism
Correctly adjust the stitch lever
Unlock and correctly adjust
2. MACHINE DRIVE AND ADJUSTING FAULTS
SERVICE
SECTION
SYMPTOM
POSSIBLE CAUSE POSSIBLE SOLUTION
Check electrical plug and wiring
Check with a voltage meter
Check: a) main switch
b) fuses
c) emergency stop switch
No power to the motor
Incorrect voltage
Electrical equipment defect
Motor fails to start
B - 4
B - 6
D - 13
B - 4
D - 3