Maintenance and Care
73
These maintenance intervals are based on an average running time of a single
shift production shop. Shorter maintenance intervals are recommended for in-
creased running times.
12
.02
Cleaning the machine
The required cleaning cycle for the machine depends on the following factors:
Single or multi-shift operation
Dust formation caused by the workpieces
Optimal cleaning instructions can therefore only be defi ned on a case-by-case basis.
Clean the hook, hook area and gear wheel
4
daily or more often during continuous operation.
Disconnect the machine from the electricity mains for all cleaning work by shut-
ting off the main switch or removing the mains plug! Risk of injury due to acci-
dental machine start-up!
The following tasks are recommended dur-
ing a single shift operation to avoid opera-
tional errors:
Clean the hook area
Clean the hook area with a brush
Clean the hook
Move the needle bar to the top position.
Open the post cover.
Remove the bobbin case sewing head
with bobbin.
Unscrew the hook gib
1
.
Turn the handwheel until the tip of the
lower bobbin
2
has penetrated approx.
5
mm into the groove of the hook race.
Remove the lower bobbin
2
.
Clean the hook race with kerosene.
Make sure that the horn
3
of the lower bobbin
2
engages in the groove of the needle
plate when inserting the lower bobbin
2
.
Screw on the hook gib
1
.
Insert the bobbin case with the bobbin and close the post cap.
Do not operate the machine with an open post cap!
Risk of injury from the rotating hook!
12
Maintenance and Care
12
.01
Maintenance intervals
Cleaning ........................................................ daily, several times if in continuous operation
Clean the hook area ...................................... daily, several times if in continuous operation
General oiling ...................................................................................... daily, before start-up
Oil the hook ......................................................................................... daily, before start-up
Oil level (thread lubrication / hook lubrication) ................................................ twice a week
Lubricate the bevel gears ..................................................................................once as year
Clean the blower air fi lter ................................................................................... as required
Fig. 12 - 01
2
1
5 mm
4
3
Summary of Contents for 1591
Page 77: ...77 13 Table Top 13 01 Tilt base Tilt base 2x rawlplugs ...
Page 81: ...Notes ...
