23
2
1
1
2
1
5
4
3
2
1
7
6
1
5
8
9
10
11
3.13 Lubrication
3.13.1 Description
In the main lubrication reservoir (1) there is a suction wick (2)
which wipes against the shaft (3). The wick (4) collects oil
from the shaft (3) and feeds it into the wick (5) which
distributes oil to the lubricated spots. The left branch lubricates
the needle and the thread mechanisms. The right branch
lubricates the mechanism of the stitch length and, thereafter,
pushed into the box (11). The wick (6) sucks off the excessive
oil from the needle and the thread mechanisms and also
pushed into the box (11). The lubrication reservoir (7) feeds
oil through the wick (8) for lubricating the hook. The wick (9)
lubricates the shifting wedge of the feed clutch. The wick (10)
lubricates the gear of the hook drive.
3.13.2 Refilling oil
For lubricating the machine oil Esso SP-NK 10 is used or
other oil with the same quality. When putting the machine
into operation, each mechanism of the machine is to be
lubricated with several drops of oil. Oil is only refilled thereafter
into the oil reservoirs using an oil can into the holes in the oil
level indicators. The oil reservoir (1) is to be filled up to the
half of its content. The oil reservoir (2) is filled up to the
pouring holes.
3.13.3 Multiple oil use
Oil which runs into the oil cup is collected in the collector (1)
and may be reused for refilling the oil reservoirs in the machine
- see par. 3.13.2.
The oil collector (1) with the collected oil is uscrewed and the
top part of the oil can (2) which is added in the machine
packing is screwed in. Oil is then refilled into the reservoirs on
the machine head and everything is put into the original
condition.
