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7.
Maintenance
7.1
Cleaning and checking
Maintenance work to be carried out
Machine head
Remove sewing dust, thread ends and
cutting waste.
Sewing motor
Check the condition of the V-belt.
Pneumatic System
Check and, if required, adjust the
air pressure.
Check water level in the pressure
regulator.
Clean the filter element.
Check the tightness of the system.
Auxiliary equipment
Clean the light barrier of the –
thread rest monitor.
24
CAUTION: DANGER OF ACCIDENTS !
Turn off main switch
Switch off the machine before proceeding to any maintenance work!
The maintenance work must be carried out at least at the intervals
specified in the table ( see the column Service hours ).
1
Explanation
Clean particularly:
- the bottom of the throat plate
- the sewing cage
- the space around the hook
- the bobbin case
- the thread cutter
The water level should not reach the filter element 1.
Drain the water separator 2 under pressure after turning-in
the draining screw 3.
The filter element 1 separates dirt and condensed water.
Disconnect the machine from the compressed air line.
Turn-in the draining screw 3. The pneumatic system of the
machine must be pressure-free. Unscrew the water separa-
tor 2. Unscrew the filter element 1 and wash the filter tray
and the filter element petroleum benzine ( no solvents! )
Bow dry by compressed air. Re-assemble and re-install the
conditioning unit.
Clean following element:
- The lens of the light barrier
- The light beam passage in the bobbin case
2
3
Service
hours
8
160
8
40
500
500
8
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