Rank: Forum user 
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Looking for some confirmation regarding the practice of moving mobile crane short distances with the outriggers still extended ? ground bearing presure test in place and approved ground make up of layered sub base
I believe this is certainly not good practice however I would like some info / cases of such deeds causing undesired events. Can any one confirm my concerns to be able raise this issue
Thanks
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Rank: Super forum user
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Joebaxil wrote:
Looking for some confirmation regarding the practice of moving mobile crane short distances with the outriggers still extended ? ground bearing presure test in place and approved ground make up of layered sub base
I believe this is certainly not good practice however I would like some info / cases of such deeds causing undesired events. Can any one confirm my concerns to be able raise this issue
Thanks
As long as you are only moving it a short distance and have checked for hazards and possibly have a banksman in place, i genuinely can't see a problem. We used this method countless times as an ex Steel Erector without problems. Obviously, it was well managed.
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Rank: Super forum user
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there is no law against this practice and at one time some cranes were especially designed for this activity [I cannot remember their name off hand] as it was recognised that sometimes loads had to be moved in ways that were not simply up and down - and cranes have been used sometimes to drag / pull loads! It can be done safely if managed and organised properly
Listen to frankc as it is good advice - and U need a very good risk asessemnt / procedure and superviser who will kick butt instantly if anybody looks like they may do something that has not been formally agreed
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Rank: Forum user
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Cheers Bob
Thanks for the sanity check , the surounding roads / area are very isolated however the hardstanding varies at around 700 Square Meter of space and is strickly controled as a permit to work area with barriers and signage. We have a solid AP controling the works and only essential personel are in the area.
All RAMS control measures we have in place and the I am happy with competence of the crew, and the distances are minimal 20 meters maximum.
Thanks again Gents
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Rank: Super forum user
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If the crane is being moved unloaded - then as above, provided it is "properly" controlled (although I genuinely cannot see much benefit - and there are some risks..) BUT... If you are asking whether a mobile crane can move with a suspended load then my answer would have to be an unequivocal no. The outriggers (and the crane to which they are attached) are designed to take effectively a static load. They are not designed to withstand the kinetic forces possible if the crane starts to tip whilst travelling with the pads off the ground, they are not designed to take the lateral forces that would arise if one pad 'digs in' whilst the crane is travelling... and the load could not be stable... Use a telehandler, forklift or other similar machine designed to transport loads. Or lift and place, move the crane, lift and place, repeat....
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Rank: Forum user
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Hi Steve
Thanks for the feed back , answer to the question is absolutely no suspended loads , nothing under hook at all it just would not happen that's for sure. It caught me of guard and just wanted info before committing my self.
It is purely for moving the cranes between areas around the hardstand literally in some cases 10 m.
Thanks again Gents
j
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Rank: Super forum user
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bob youel wrote:there is no law against this practice and at one time some cranes were especially designed for this activity [I cannot remember their name off hand]
We called them Rough Terrain Cranes, Bob. One from the 70's was called a KL 66. This link shows a similar type. http://s30.photobucket.c...ane_zps7263232b.jpg.html
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Rank: Super forum user
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Joe some cranes have Free On Wheels duties but these are limited . You have had some excellent replies and I understand your and others concerns. It is quite common to move a hevy crane with riggers extended on level ground for short distances.This saves hours of deballasting. Only one point Bob cranes have never been allowed to drag or pull loads legally although we know it has happened. (I am still banned after 10 years from Sugarich East London for banning this practice)
Ta Alex
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Rank: Super forum user
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Good practices is not doing that.. but if your company want to save time..etc... then you need good supervision from your banks man .. tricky thing it happen to me as well..
SHV
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Rank: Forum user
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In regards to the moving with a suspended load some cranes can perform this task providing it is stated on the duties chart, and the crane has been de-rated accordingly.
Some cranes are specifically designed for this procedure. Most Mobile Construction Cranes can perform this duty however managing it is another question and Its something I would certainly avoid but can be done if correctly managed.
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