Operation Instructions for ZLP250
Temporarily Installed Suspended Access Equipment
7
of ab spacing reaches 5 (see figure 6 as below). When any corrosion or abrasion
on the surface of steel rope, the standard for rejection is reduced further. The
percentage of reduction is that the maximum allowable breaking numbers 5 times
the percentage of the corrosion or abrasion on the surface of steel rope to make
deduction.
Figure 6: Steel Rope
c.
Obvious corrosion on the steel rope, that is, the concave pit on the surface and the
steel rope is loose.
d.
The nominal diameter of steel rope is reduced by 6%, even if there is no twist
breakage.
e.
When the abrasion of outer rim of steel rope up to 40% of diameter.
f.
The damage or accumulation incurred by the heat or electric arc.
4.
Installations and Adjustment
4.1 The Preparation before Installation
Prior to installation, please check up the number of parts as shown in the packing
list. Check the condition of each and all the parts and components.
4.2 Installation of Suspension Mechanism
See attached figure 1: suspension mechanism and use the special installing tool
─ pinch bar if necessary.
4.2.1
Insert the tommy bars into the front base and rear base respectively. Adjust the
height of the tommy bars and tighten the bolts to form the front base and rear base.
(The height of which should be adjusted with the 1.44~2.14m range according to the
height of parapet).
4.2.2
Lead the front and rear beams into sleeve on front or rear base, position the
middle beam between the front and rear beams and tighten the bolts and nuts.
4.2.3
Mount the working steel rope and safety steel rope onto the coupling sleeve of
the front beam. Make sure that the ends of the ropes must be clamped well (see
section
4.2.4
Adjust the front beam overhang and fix the upper column with tommy bar with
the bolts and make sure that it is not askew.
4.2.5
Adjust the distance between the front and rear bases. Adjust the three beams to
make sure that the three beams should be in the same straight line. Care must be taken
that the height different between the three beams must not larger than 10 cm.
Moreover, it is only allowed that the front is higher than the rear.