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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.
3.14.2.
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.
7
6
1
8
9
11
10
5
2
1
1
2
1
5
4
3
2
1
