TECNA 9346 Instrucciones página 5

occurs (Fig. 6) after a long use (years) it could be due to the spring breakage (X in Fig. 6). If this occurs
during the installation, this is due to an insufficient capacity adjustment. Provide by increasing capacity by
means of the wrench D, as shown in (Fig. 2). Check that with the cable (8) completely wound, the working is
regular. If the drum blocks with the load at the top of the stroke, proceed as in the previous section, increasing the
capacity or limiting the upward stroke by adjusting clamp (13). If this does not solve the problem, replace the balancer
with one of a lower capacity.
During working the cable must not unwind its total length. It must stop at least 100 mm before the lower
limit of the stroke (Fig. 4).
rewinding of the cable. This make it possible to work without cable tension, for example inside a car (Fig. 8).
The block is caused by the slow upward run of the tool, the ratchet E clicks into housing C throught the force of
gravity (Fig. 8). The block is released when the tool moves downwards. To prevent accidental blocks, the upstroke
should take place at normal speed. The rewind blocking mechanism can be neutralised by tightening home screw
(21), while the load is pulled up and down manually (Fig. 9).
USING THE BALANCER
When the balancer with its load is installed, check that working conditions are correct (smooth movement with
minimum effort). For a correct and safe use periodically check the status of the upper attachments A and S (if
screws are used, the status of self locking systems and/or split pins should be checked).
Periodically check that parts under strain (hook, cable, balancer suspension parts and connections to the
tool) are safe and not weakened by wear.
MAINTENANCE
The balancer are designed for not requiring maintenance during all the operative life. Nevertheless, if a special hard
use requires it, before touching the balancer inside, carefully check that the drum-spring assembly (5) is
unloaded.
The spring is the only dangerous component of the balancer and it is kept inside the drum (5) already
lubricated for all its life terms. The spring-drum assembly spare part (5) is supplied already assembled and
the spring must in no case be taken out. Cable replacement: remove screws ABC and slacken wrench D of
some mm. Lift flange E, replace the cable (11). Tighten screws ABCD (Fig.7). Carry out the assembling and adjust
capacity. The use of other than TECNA S.P.A replacements parts may result in safety hazards, decreased performance
and increased maintenance, and may invalidate all warranties. Repairs should be made only by authorised trained
personnel. Consult TECNA S.P.A.
When the life of the balancer has expired, it must be either removed or recycled according to the present regulations.
Don t disassemble the spring assembly (5) as this operation brings some risks.
An exclusive feature of this serie of balancers is a mechanism wich blocks the
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