L4627_b 15
7.2 Parameters Screen
Figure 14: Parameters screen
In this screen the user must define some movements
and security values of the system. In this screen, the
following elements are found:
1. Units Selection: The user can select the units
whereby the system will show the values. This
values can be:
• Load units: lbs/1000, Ton (1000 kg), s Ton (907,18
kg) and kN.
• Dimensional units: mm or inches.
2. SHS Drop Down Menu: Here the user must
choose the type of SHS which is being used.
These can be standard or custom ones. If the user
select an standard type, all values will be loaded
automatically by the system. If custom is selected,
the system will let the user type the specifications
of the SHS. Point 3 to 5 gets affected by this fact.
3. Effective Area Big Chamber: The system will show
the effective area of the piston face.
4. Effective Area Small Chamber: The system will
show the effective area of the rear piston face.
5. Pressure span: The system will show the maximum
capacity of the pressure transducer.
6. Maximum Total Load: The user must type the
maximum load expected of all cylinders which are
involved in the current application. When this value
is exceeded, the control will show a warning alarm
and the movement will be stopped.
8. Operation
8.1 Preparing the Synchoist
Synchoist cylinders must be positioned vertically,
hanging on the crane by the hoisting eye located near
the safety block protector, and the load on the hoisting
eye installed on the plunger of the cylinder.
Figure 15: Position of the cylinder
The Synchoist must be attached and secured to the
hook using the following pins:
Figure 16: Hook pins
Depending on the tonnage of the load, the dimensions
of the hook pin will change.
Tons mm [in]
Measure 55 85 120
A 57 [2.24] 70 [2.75] 83 [3.26]
B 57 [2.24] 70 [2.75] 83 [3.26]
C 117 [4.60] 143 [5.62] 162 [6.37]
D 57 [2.24] 70 [2.75] 83 [3.26]
E 83 [3.26] 105 [4.13] 127 [5]
F 197 [7.75] 260 [10.23] 329[12.95]
G 138 [5.43] 180 [7.08] 190 [7.48]
H 341 [13.42] 437 [17.20] 535 [21.06]
I 286 [11.25] 344 [13.54] 403 [15.83]
J 252 [9.92] 320 [12.59] 356 [14.01]
K 26 [1.02] 32 [1.25] 40 [1.57]
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