EN
13.1
Installation and adjustment of the balancing unit
• The balancing unit is composed of a linkage lever, a slider [
CU
] and a spring unit.
• The linkage lever has two 4 mm pitch toothed windows, on which the [
CU
] slide will be fit.
• On one of the holes on the slider [
CU
] the SPRING
SET SP/85/AS/02
will be fit.
• The supplied sliders are of two types
CU1
and
CU2
and can be distinguished by the identifying marks (see
*
and
**
). The two types of sliders allow millimetre adjustment
of the spring travel, since the spacing between the holes is different (26-24 mm), see details in fig. 15 and 16.
• Fit the most appropriate slider
CU
for a correct balancing of the boom.
13.2
Slider selection
• The correct position of the slider is determined by the boom weight: the heavier the boom is (weight determined by the totality of the accessories installed), the
more to the outside the slider should be installed.
• Reversing the insertion direction of the slider, rotating it by 180°, the hole spacing value is modified in relation to the linkage lever centre, see fig. 15 and 16
(e.g. 135, 136, 137, 138 mm values).
• To decrease the travel (extension) of the spring, move the slider
CU
inward by one pitch in the linkage lever and check the tensioning of the springs.
• Each pitch reduces the travel value by 4 mm..
26
*
24
*
*
SLIDER 1 - CU1
Example 1
Example 1
Example 2
Example 2
SLIDER 2 - CU2
136
*
138
*
137
*
*
135
*
*
15
16
180°
*
180°
*
*
