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MC250
2.5.4 Mast column erection
The masts are joined through two T shaped screws. The nuts of these screws have a notch that
prevents them from loosing. Due to this the screw cannot be separated from the mast. The
screws are tightened with the scaffolding assembly ratchet wrench:
WARNING:
When joining each pair of masts, check that the nuts are tight and that the assembly
between masts is correct.
(+34) 944 71 16 00 (+34) 944 53 17 54 export@alba.es
MC250 Rev.02-USA
Replace the screws and nuts that show knocks or dents with new ones.
An incorrect mast joint could cause a serious accident.
15 of 78
page
Scaffolding
assembly
ratchet wrench
Tighten the nut
with the scaffold
ratchet
www.alba.es
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