19
3.12 Lubrication
3.12.1
Description
From the lubricating tank (1) there issue three suction wicks. The wick
(2) lubricates the pin of the thread mechanism, the wick (3) lubricates
the needle mechanism and the wick (4) lubricates the stitch length
mechanism. The superfluous oil from the needle and thread mechanisms
is sucked off by the wick (5).
The hook has its own oil reservoir (6).
The hook DSH 820 has got a lubricated path of the bobbin case lifter
The hook R 810 has got a lubricated circulating path of the middle part
of the hook as well.
3.12.2
Refilling oil
For lubricating the machine oil Esso SP-NK 10, DA 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.
The oil tank (1) of the central distribution is to be filled up to the mark
max.
The oil reservoir (2) for lubricating the hook is to be filled after having
removed the sealing plug, up to its top edge.
3.12.3
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.
3.12.2.
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.
3
5
1
2
6
4
1
2
1
1
2
