The first step in assembling one or more intermediate lattice boom extensions on a telescoping-boom crane is to _____.
a. remove the swing-away from the main boom and place it on the ground
b. insert the attach points of the intermediate section into the main boom head
c. verify that the first intermediate section does not have a support roller
d. have the auxiliary crane support the main boom while installing the intermediate section
a. remove the swing-away from the main boom and place it on the ground
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