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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 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
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.
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 (9321÷9323)
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.
If you are unable to move the hanging tool up or down using moderate force, DO NOT continue but contact our
technical service at once.
NOTE: the balancer locks even if the drum spring is completely discharged. To restore working efficiency,
attempt to charge the spring as outlined in paragraph "Adjusting the balancer". If the balancer does not
release, DO NOT do anything but contact the technical service at once.
INSPECTIONS AND MAINTENANCE
Maintenance may be carried out only by skilled and authorized personnel.
- The user must visually inspect the balancer on a regular basis (such as, for instance, at each work shift)
especially to check the state of suspensions A and S (Fig. 1), the fixing screws and the self-locking systems (if
used), and the condition of the hooks and cable.
Should the cable have the defects shown in (Fig.5), replace it immediately.
Do not make any modification to the cable unit and, specifically, DO NOT SHORTEN the cable: if need, please
get in touch with TECNA S.p.a.
- check that the cable's movement is smooth and that it does not make any strange noises;
- do not lubricate the balancer with flammable or volatile fluids;
- do not remove any labels. Replace any damaged labels;
- the balancer must be inspected at least once a year by skilled, authorized personnel.
Never disassemble the balancer. Maintenance is to be carried out only by skilled, authorized personnel.
The static and dynamic tests (Machinery Directive 2006/42/EC, Annex I, section 4.1.3) have been performed by
the manufacturer.
The balancer must be disposed of complying with prevailing rules and regulations at the end of its work life.
Warranty
The use of non original TECNA S.p.a. spare parts will negatively affect safety and performance and will, in any
case, void the warranty.
ISTRUZIONI BILANCIATORI_man9080-1_9320-9323_10-2013.pmd
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05/12/2013, 8.43
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