Bernina 740E - Manual (Page 49)

Maintenance
Attention:
Disconnect the machine from
the eiectncity su|^ by remo­
ving the plug from the mains
socket- When cleaning the ma­
chine. it must always be dis­
connected from the electricity
supply.
two hook retaining arms. Insert ttie
bobbin case and bobbin and replace
the stitch plate
Impoftant:
Fabric fluff and threads must be re­
moved regularly. Your machine
should be serviced at regular inter­
vals at one of our service agencies.
Remove the stitch plate:
Turn the handwheel until the needle
is fully raised. Open the hinged front
cover and push the release lever
upwards. (1)
Cleaning the feed dog:
Remove the bobbin case (see Page
26) and use the brush supplied to
dean the whole area <2)
Cleaning arxf lubricating the hook:
Remove the bobbin case (see Page
26) Snap Ihe two hook retaining
arms (3) outwards. Remove the hook
race cover (4) ahd the hook (5) arvd
dean with a soft doth. Lubricate at
the points (6) (1 ~2 drops) with sewing
machir>e pit. Turn the handwheel until
the hook race (7) is in the left position.
Replace the hook (5). Replace the
hook race cover and snap back the
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