Safety Devices - TECNA 9336AX Manual De Uso

WARNING: refer to figure 1a for loads up to 4 kilos otherwise refer to figure 1b for loads exceeding 4 kilos.
If screw fixing devices are used to install the balancer, use self-locking nuts, split-pins or other safety systems.
Always connect the safety suspension (S), using exclusively the supplied standard fittings (Fig.1a/b), to a suitably
sized support. The safety support MUST NOT BE the same one used for the main suspension (A) (Fig.1a/b). If the
main suspension breaks, the max falling distance must not be more than 100 mm. Tighten the nuts of the clamp
21215 (Fig. 1) at a torque of 2 Nm.
To avoid anomalous wear, the load must be applied vertically and in any case the cable must be free to line up with the direction
of the load.
Using the balancer
Grip the tool hanging from the balancer and carry out the required operations. Then accompany the tool until it balances, on the
vertical line of the balancer, and release it.
The load to be balanced must be hung on hook (24) (Fig.4). Ensure that the hook is properly closed after having hung the load.
ATTENTION: the electric potential of the hung tool must always be the same as that of the balancer.
The cable must never unwind all the way: the work stroke must end at least 100 mm before the stroke's lower limit.
If need be, move and lock the clamp (20) (Fig.4) to stop the upward stroke.
When using the balancer, always don individual protective gear and closely adhere to the prevailing accident prevention regulations.
It is strictly prohibited to:
- Abandon the load if it is not in a vertical position;
- Swing/throw the hanging load to another operator;
- Move the load by pulling the balancer's cable;
- Hang loads that are not within the upper and lower ranges of the admissible load-bearing capacity;
- Hang more than one tool on the balancer.
The sole risk linked to the use of the balancer consists in any uncontrolled rewinding of the cable. This very dan-
gerous event will be avoided by adhering to the following instructions:
- if you have any doubts concerning the working efficiency of the balancer, BEFORE performing any kind of inspection be sure
to hold up the hanging tool to prevent it from falling and UNLOAD THE SPRING COMPLETELY;
Should one wish to fully discharge the spring, stop the discharging operation as soon as the spring is effectively
and completely discharged (proceeding beyond this position would damage the spring which would require to
be replaced).
- if for any reason whatsoever the balancer does not rewind the cable, DO NOT do anything on your own initiative but contact
the customer service at once;
- never release the load if the cable has not been fully wound in the drum;
- should you find the balancer with the cable unwound and no load applied to it, DO NOT do anything on your own initiative but
contact customer service at once.
Adjusting the balancer
ATTENTION: when using the balancer, do not exceed the hanging load shifting speed of 0.8 m/s.
ATTENTION: the admissible room temperature interval ranges from +5°C to +60°C.
To enable the balancer to balance heavier loads, use wrench (D) to turn the knob (6) counterclockwise, identified by symbol "+"
as shown in the figure (Fig.2). For lighter loads, press the end of the spring (9) (Fig.3) and turn it clockwise, identified by symbol
"-" as shown in the figure (Fig.3).
WARNING: DO NOT USE THE WRENCH ON KNOB 6 TO DECREASE THE LOAD! (The latching system could break
if you force the knob using the wrench in the load-decreasing direction).
After having adjusted the load, check that the cable slides freely for its entire length: the movement must not be restricted when
the spring has wound all the way. Check the stroke often and at different speeds.
ONLY FOR models 9346AX-9350AX
Balancers 9346AX-50AX are fitted with a mechanism that locks the rewinding of the cable. This permits working without the
cable traction, for instance inside a car (Fig.7).
The locking is achieved through the slow upward movement of the tool.
In order to release the rotation of the drum, pull the tool slightly downwards but make it go back up quickly.
In order to prevent undesired locking, it should go up at a suitable speed.
The locking kinematism may be neutralized by tightening the screw (25) all the way while the load goes up and down (Fig.6).
NOTE: should the balancer's capacity of supporting a hanging load decrease, this could mean that the spring of the
drum is about to break. DO NOT MODIFY BALANCER ADJUSTMENT TO MAKE IT HOLD UP THE LOAD IN ALL CASES
BUT CONTACT SKILLED PERSONNEL IN CHARGE OF MAINTENANCE AT ONCE.

Safety devices

The balancer is fitted with a safety device that trips if the drum's spring breaks and stops operations to prevent the hanging load
from falling.
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