Planeta 9354 Serie Instrucciones De Manejo página 12

8. Under normal conditions the torque moment "M.T." of the spring inside the drum (27),
by means of the gear (19), maintains the screw (9) thrust upwards and the end of the
screw keeps the safety device (13) locked far from the drum disc (N° 27 fig. F).
9. Breaking of the drum spring (27) causes the spring (12) to move the device (13)
against the disc (D) blocking rotation of the drum (27) and preventing descent of the
load (Fig. G1).
10. Adjustment for an insufficient load can also block the disc (D), thus preventing
rotation of the drum (27). This problem occurs in the upper part of the stroke and is
identified by the exit of the screw (9) by more than 4-6 mm (Fig. H); proceed as follows
to obviate this problem:
a) turn the screw (9) at least twenty times in a clockwise direction with the 6 mm Alien
key (10): the balancer torque moment "M.T" through the shaft (22) and the gear (19)
thrusts the screw (9) upwards and its pin engages the inclined plane of the safety
device (13) freeing drum rotation.
b) limit the stroke to the minimum indispensable, moving upwards and fixing the clamp
(42-42). If this does not eliminate blocking of the drum (27) you must replace the
balancer with one of a lesser capacity.
11. Balancer capacity Is Increased by turning the screw (9) with the 6 mm Alien key in
a clockwise direction; It Is decreased by turning anticlockwise (Fig. A).
12. After load adjustment check that the cable (28) runs freely, i.e. that it is not the
drum spring (27) fully loaded which limits the stroke.
13. While working the cable must not be fully employed but must stop at least 30 mm before
the lower limit of the stroke (Fig. A).
14. If necessary, move and lock the clamp (42-42) to limit the upward stroke (Fig. A).
15. To lock the load at the desired height, turn the shutter screw (6) by 90° (pos. A Fig. E).
16. Take care that the shutter screw (6) reaches the stable position. Rotation can only
take place by pressing with the screwdriver (Fig. E).
17. For the inverse operation, to unlock rotation, identical to the previous one,
take care that the load is applied to the balancer; otherwise there could be a
dangerous whiplash on the extended cable (28).
VI. Using of the balancer
1. When the balancer is installed with its load, check that the working conditions are
correct (sliding movement with minimum effort and absence of anomalous noises).
2. For correct and safe use, periodically check the state of the upper connections of the
hook (33) and the hook (29); if screws or split pins are used, check their condition too
and replace them if necessary. Also check the supports or trolley installed under the
user's responsibility and that the "S" safety suspension is intact.
3. Periodically check that the parts under stress (hook, cable, balancer suspension
components and tool connections)are safe and not weakened by wear.
4. Check that the snaplink (29) and hook (33) springs function correctly and that the safety
device holds well. Carefully observe: the state of the cable (28) along all its length: if
there are type A defects (breakage of a few individual wires)the cable can still function;
if there are type B or C defects (breakage of a strand) the cable must be replaced
immediately (Fig. I).
VII. Minor maintenance to installed balancer
1. Lubricate the cable (28); in industrial environments use "BEACON 325 (ESSO)" grease
or equivalent.
2. In foodstuffs environments use suitable grease (balancers should be requested in
special execution).
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