24
BARR500
UK
If the spring is fitted and you think that the operator will need to be released after removing the boom coupling, first
follow the
Balancing device detachment
procedure.
1-
The boom must be in horizontal position.
2-
Undo the hexagonal head screws
6 (22)
that close the coupling cover.
3-
Remove the coupling cover
5 (22)
and the boom
4 (22)
.
4-
Loosen the countersunk head screw
3 (22)
.
5-
Use an extractor of adequate size to remove the coupling from the grooved shaft, using the head of the
countersunk head screw
3 (22)
as pivoting point.
It is strongly unadvisable to try and remove the coupling in any other way.
WARNING: If the spring is fitted it is compressed when the coupling is in horizontal position; therefore, do
not carry out the release manoeuvre without the boom fitted.
1 -
Release the operator (see the section MANUAL MANOEUVRE).
2 -
Move the boom into vertical position by hand.
3 -
Lock the operator.
4 -
Release the spring preload by acting on the nut
1 (25)
holding the hexagonal fork
2 (25)
firm with a wrench.
5 -
Using an Allen wrench undo the screw
1 (23)
that secures the balancing device to the Cable
Some accessories increase the total weight of the boom and hence affect the choice of spring/s to be used.
FORK SUPPORT (34)
The fork support is particularly useful for booms of more than 3 m long, as it prevents external forces from bending the
boom.
FOOT (35)
The function of the foot is similar to that of the fork support with the advantage that it is raised together with the boom
and is not an obstruction when the boom is in vertical position.
The foot is recommended for booms of not more than 4 m long.
MOVABLE RACK (36)
The movable rack is useful to enhance visibility of the boom that closes the gateway.
SPLIT BOOM KIT (37)
The split boom is useful for gateways where there is limited vertical manoeuvring space.
BOOM SUPPORT COUPLING UNINSTALLATION
BALANCING DEVICE DETACHMENT
ACCESSORIES AVAILABLE
Содержание BARR500
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