Superior spx 960, Instruction Manual For Operating And Maintenance

Page: 73 / 112

Istruction Manual for Operation and Maintenance
SPX-960
:
4.8.1 ANTI-TWO BLOCK
Whenever the anti-tipping system is malfunctioning, an audible signal (buzzer) goes off and the display
of the power unit (3 in Fig. 49) shows the letter “E” followed by a number that identi
fi es a speci fi c pro-
blem.
When the hook block is controlled to lift all the way up, the electronic system connected to the hook
winch stops the hook in a pre-set position.
The anti-two block is already set when the machine is released from the factory. If it needs calibration,
because it goes out of sync or whenever wire ropes are replaced, proceed as instructed below:
- Energize the system.
- Lower the boom until the hook is at approx. 10 cm from ground level (see Fig. 47).
- Position the lower block as close to the upper block as possible: the min. distance between the two blocks
must be 8 to 10 cm (Fig. 47).
- Press the “Enable” button (3 in Fig. 49) on the electronic con-
trol unit (on left-hand side of control panel, Fig. 49) to access
the setup
fi elds. The display goes on (3 in Fig. 49).
- Press the programming button (2 in Fig. 49) and hold it pres-
sed until the display
fl ashes (3 in Fig. 49).
- Hold the programming button (2 in Fig. 49) pressed and
press the “enable programming” button simultaneously (1 in
Fig. 49).
- Now, the display stops fl ashing and stores the anti-two block
position.
NOTE: if the machine is supplied with an optional Visio
terminal, refer to section 4.3.4 for the setup parameters
of the anti-two block.
WARNING
Set the anti-two block after lowering the boom to the
ground as shown in Fig. 47.
During boom lowering the two blocks approach one ano-
ther:
if they are already too close, they may interfere and cause
overloads or breakage of the hook rope.
4.8.2 LIFTING HOOK
During operation the lifting hook (8 in Fig. 47) with a spring-loaded safety latch is subjected to mechanical
and thermal stress, which over time inevitably leads to hook deformations and strain hardening.
In special working conditions (wet, corrosive, high temperatures, etc.) surface wearing can be signi fi -
cant.
An excessively heavy load can cause deformations. This is why the capacity shown in the “load capacity”
table in section «1.4 Technical speci
fi cations» must never be exceeded
4
4-31
Fig. 49 – Standard anti-tipping control
1 2
3
MACHINE OPERATION