5
6
11
4
5
10
9
12
8
3
7
2
13
1
2
3
4
5
6
0
o
7
1
1
5
6
6
3
2
5
10
9
11
8
4
9
3.1.10 Dismantling of the hook post
When dismantling the post (1), the supplies of lubricating oil
are to be disconnected first, the fastening screws unscrewed
and, thereafter, the post is removed.
Caution ! Danger of injury!
Switch off the main switch! Before starting the
setting operation, wait until the motor stops!
- Remove the covers of the post.
- Unscrew the screw (2).
- Push the lubricating tube (3) downwards into the post.
- Disconnect the hose with the wick.
- Screw out the screw (4) of the lever (8) on the shaft of the
trimming knife (9). Loosen the screw (10), turn the lever (8)
as indicated by the arrow, and take it out of the shaft.
- Loosen the screws (11) of the microswitch holder.
- Loosen only one screw (5).
- Unscrew the screws (6).
- Shift the post in the sense of the arrows and remove it out
from the machine.
- When mounting it, proceed inversely. Make sure that the
wicks in the tubes are in contact with the other wicks leading
oil into the box (7).
3.2 Needle and thread mechanism
3.2.1 Description
The take-up lever (1) is mounted in ball bearings, both at the
spot of its suspending on the connecting rod (2) and in the
mounting on the loop (12). The take-up lever is of aluminum
and is provided with a stuck-in eye for two threads. The
connecting rod (2) is mounted on the eccentric pin (3), by
means of which the thread mechanism is adjusted for a big or
a small hook. The needle bar holder (4) is mounted through
the pin (5) in a rotating way in the arm (6). In its top part, the
holder is guided by the guide pin (7). The movement for the
needle feed is given to it by the connecting rod (8) driven by
the feeding shaft (9). The connecting rod (8) is mounted by
eccentric pin (13) with needle bar holder (4).
The connecting rod (10) of the needle bar (11) on the loop
(12) is mounted in a ball bearing and it is slidingly mounted
on the needle bar carrier. The mechanism is lubricated by means
of a central-wick lubricating system.
3.2.2 To check the handwheel angular adjustment
The handwheel (5) must be situated in its precise position
relative to the needle and thread mechanism. This position is
given by a pin (2), which locks the connecting rod of the
needle rod (1) through a hole in the arm (3). In this position,
the indicator (6) of the handwheel must show O. The position
is fixed by the handwheel screw (4) contacting a small flat
surface provided on the upper shaft.
The correct adjustment of the angular position has been car-
ried out at the producers.
Caution ! Danger of injury!
Switch off the main switch! Before starting the
setting operation, wait until the motor stops!
