Safety Devices - TECNA 9354AX Manual De Uso

Assess the range of the work area and, if need be, hang the balancer on a carriage to be able to use it properly in an area wide enough to carry
out the required activities.
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.1), to a suitably sized support. The
safety support MUST NOT BE the same one used for the main suspension 33 (Fig.1). If the main suspension breaks, the max falling distance
must not be more than 100 mm. Tighten the nuts of the clamps 20331 (Fig.1) at a torque of 4 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
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 -20°C to +40°C.
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 snap-hook 29 (Fig.4). Ensure that the snap-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 be unwound all the way: its work travel must end at least 100 mm before it reaches the lower limit (balancers
9354AX÷9359AX are fitted with an automatic limit stop system).
If need be, move and lock the clamp M (Fig.4) to stop the upward stroke.
Do not unhook the load if the clamp M (Fig. 4) does not lean onto the rope's swaging (POSITION SHOWN IN FIGURE 4).
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 dangerous 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 DISCHARGE THE SPRING COMPLETELY
- 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
- if the balancer's cable is unwound and no load applied to it, DO NOT do anything on your own initiative but contact customer service at once
Adjusting the balancer
To enable the balancer to balance heavier loads, use the specific key to turn screw 9 (Fig.4) in the direction indicated by symbol "+". For lighter
loads, turn screw 9 (Fig.4) in the direction indicated by symbol "-".
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.
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

Drum spring breakage
The balancer is fitted with a safety device that trips when the drum spring breaks and stops the balancer to prevent the hanging load from
falling.
If the hanging tool cannot be lifted or lowered through ordinary strain, DO NOT INSIST but contact customer service.
NOTE: the balancer stops even if the drum spring is fully discharged: in this condition the head of the charge screw 9 (Fig.4)
protrudes approximately 4 mm outside the cap. To restore operating conditions, try to charge the spring as outlined in paragraph
"Balancer adjustment". If the balancer does not release, DO NOT do anything and contact customer service.