Maintenance - Duerkopp Adler 743-221 Service Manual

5.

Maintenance

Work to be carried out
upper part of machine
clean up dust, lint and thread fragments in the region of the shuttle and
needle plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
clean light barrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
check oil level in reservoir . . . . . . . . . . . . . . . . . . . . . . . . . . . .
check oil level in shuttle-lubrication reservoir . . . . . . . . . . . . . . . . .
check shuttle lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
clean lenses of residual-thread monitor . . . . . . . . . . . . . . . . . . . .
check cogged belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
sewing machine
clean motor-fan screen
check condition and tension of V-belt . . . . . . . . . . . . . . . . . . . . . .
clean filter for stepping-motor drive . . . . . . . . . . . . . . . . . . . . . . .
inspect condition and tension of transfer-carriage V-belt . . . . . . . . . . .
lubricate laminated spring on pressure cylinder . . . . . . . . . . . . . . . .
pneumatic system
check water level in pressure regulator
clean filter insert in maintenance unit . . . . . . . . . . . . . . . . . . . . . .
check system impermeability . . . . . . . . . . . . . . . . . . . . . . . . . .
Caution: danger of injury
Turn off the main switch.
Maintenance of the sewing machine may only be carried out when it is
switched off.
The maintenance work to be carried out daily or weekly by the sewing
machine's operating personnel (cleaning and lubrication) is described
in part 1: Operating manual. It is given in the following table for the
sake of completeness.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . .
operating hours
8 40 160 500
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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