28
Fig. 12
B
1
2
A
3
4
5
Mechanism at the head end
Mechanism at the foot end
13) Mechanical adjustments
The tanning unit of this machine can be manually moved so there are no electrical parts that can cause problems
during the movements.
However as weight compensation is regulated by a series of springs, it may be necessary in due course to regu-
late the levers that adjust the balance.
The balance of the movement can be obtained by following the spring adjustment steps shown in ! gure 12
Step 1 - Unblock the screw (5)present on the screw regulation support (3) in such a way to avoid damaging the
support ,after having annulled the effect of spring (B) once the effect of spring B has been excluded and the
clutch screw has been loosened, use the screws that regulate the strength of spring (A) to move the tanning unit
towards its maximum height; turn the screws clockwise to load the springs which then exert more force and
consequently lift a heavier weight.
Step 2 - compensate the upward movement of the tanning unit by turning the screw of spring (B) so the mo-
vement becomes smooth; at this stage if the tanning unit lifts up too quickly it is necessary to turn screw (B)
anti-clockwise; however if the top part tends to come down turn screw (B) clockwise.
Step 3 - if necessary turn the screw indicated as clutch screw to avoid sudden movements
At the same time the ! xed limit points(top and bottom) of the movement can be set.
Adjuster screws springs A
Springs A
Adjuster screws spring B
Tie rods to stretch spring B at the starting point
Clutch for smooth movement and for the locking the two stop points
Spring B
screw to stop adjuster screw spring B
A
2
1
A
B
A
2
2
3
4
B
2
A
1
5
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