7. Machine maintenance
Caution!
Before cleaning and lubricating the machine switch off the main switch and put your your feet off the pedals on the
stand to avoid starting the machine by treading the pedal.
7.1 Cleaning
Maintain the machine clean and at least once a day (according to the processed material) remove dirt from the hook and feeder
space by means of a brush, with the machines provided with a thread cutter, from the cutting space as well. Avoid using volatile
liquids for cleaning purposes, they damage the machine and the health too. Check up the filtering sieve on the electric motor for
not being choked with dust.
7.2 Lubrication (Fig. 11, 12, 13)
For lubricating the machine use Esso SP-NK 10 oil or another oil of the same quality (viscosity at 40° C: 10 mm /s; inflammation
point: 150°C). Before starting the stitching operation, put one oil drop into the holes marked with red colour on the machine
(Fig. 12, 13). Check up specially the oil level on the oil level gauge (1) for lubricating the hook. Refill oil through the hole (2) above
the oil level gauge only when the oil lever considerably sinks below the middle of the oil level gauge.
From time to time, oil is to be dropped into the hole of the hook gearbox (Fig. 13). The quantity of the oil fed for lubricating the
hook is regulated by turning a bit a regulation pin (3) using a screwdriver within the extent of 0 - MAX, that is to the left, in
counterclockwise direction. The pin is placed on the front side of the oil vessel under the bedplate. When setting the indicator
of the regulation pin on "0", the minimum oil feeding to the hook is ensured, so that its seizure is avoided. After having put the
machine into operation, check and refill regularly the oil level in the oil vessel at the hook and in the oil vessel on the machine arm.
It is necessary to refill ESSO BEACON EP2 grease in the shafts of the feeding mechanism (4, 5).
4
5
1
Fig. 12
6
Fig. 11
3
2
Fig. 13