Good morning all, we use mobile tower scaffolds when we install equipment on clients sites. We have Youngman Boss Ladderspan scaffolds and all the engineers are PASMA qualified. The instruction manual for the scaffold states that the four outriggers should be at the same angle and form a square between the feet, which quite often we can't achieve, due to the congested areas we work in. I'm trying to find some technical guidance as to whether these angles can be reduced etc, - I assume they must be able to otherwise you could never use these up against a wall for example. I have looked on both the Youngman and PASMA sites and can't find anything which answers my question. Any thoughts or opinions would be greatly appreciated. thanks Steve

Thanks Alfasev, to further confuse the issue, the manual states; Ties should be used when the tower goes beyond its safe height, beyond the limits of the stabilisers/outriggers, or if there is a danger of instability. They should be rigid, two way ties fastened to both uprights of the frame with load-bearing right angled or swivel couplers. Only couplers suitable for the 50.8mm diameter tube of the tower should be used. Ideally, ties should be secured to both faces of a solid structure by means of anchorages. Now does this mean, the outriggers have to be in place and then tie's in addition - I'd say no, because the tie method (as shown in a not brilliant Youngman diagram) wouldn't be possible if the outriggers were in the correct position. I think I've just answered my own question. Any other thoughts?

This MIM gives you an idea of what's acceptable, Steve. http://www.upright.asia/...5%20Assembly%20Guide.pdf

Check your PM's Steve.