8 When building beyond a 4.2m platform height.
Continue to add end frames, diagonals and trapdoor
platforms as shown in the previous steps. Add guardrails at
0.5m and 1.0m (in that order) above the platform from the
protected trapdoor position.
Do not climb onto the
platform until it is fully guardrailed.
Continue until the required height is reached. Reposition the
fixed deck to the required platform height and fit a trapdoor
deck alongside it as shown in stage 7. Fit the final guardrails
as shown in stage 7.
Assembly Procedure 1450 Tower - 3T
17