9
2. Install Safety Ladders
(See Fig. 14)
E. Raise the cross beams at the same height and lock them on the safety ladders
(See Fig. 15).
This height for four threaded
rod of safety ladders should
be the same.
Fig.14
Fig.15
Lift both cross beams to the
same height.
The safety device
on the cross
beam should be
engaged in the
safety ladders at
the same height.
Safety ladder pass through the hole of the
top plate, then tighten the two nuts
18
17
The lifting cross beam height
should be fitted for installing
the platform and its parts .
1m height is recommended.
