Enerpac SBL1100, Instruction And Maintenance Manual

Page: 51 / 151

Document number: ED. 03622.00.001.R04.ENG
Page 51 of 151
ED.02518.00.001.R08.ENG
Page 51
4.5. Side load
Side load may endanger the stability of the System. It can be caused by
x
wind
x
skid tracks not level
x
system not mounted plumb
x
slings or shackles not plumb
During activities in the open air, wind exerts may put force on the lifted object.
Therefore, for
every lifting operation the maximum permissible side load has to be calculated.
The permitted side-load on the System is 1.5% of the actual load.
Enter the max expected side-load Appendix A
“ Checklist for planning a lifting operation ”.
The side load caused by wind depends on
x
the size of the object
x
the wind speed
x
the height of the header beams (lifting height).
To calculate the permissible wind speed you may apply the provided calculation program; see
Ref 4
“ USB stick Wind calculations ”. The program calculates the permissible wind speeds in
both directions under different circumstances.
The used parameters are indicated in the illustration below.
Total lifting he
ight
Header width
Lo
ad height
Header height
Slin
g-
lengt
h
Load length