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3.14 Lubrication
3.14.1 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 wicks (8) for lubricating the hooks. The wick
(9) lubricates the shifting wedge of the feed clutch. The wicks
(10) lubricates the gears of the hooks drives.
3.14.2 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.
3.14.3 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. 3.1.4.2.
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.
2
1
1
2
1
5
4
3
2
1
7
6
1
5
8
9
11
10
