background blue cage cherry cherrypicker construction hoist hydraulic industrial lift maintenance picker sky vehicle work angles arm basket camera cameraman cherry-picker communication elevated elevation equipment filming Harness height high information line lines machinery news perspectives safety television tv chain saw cherry picker danger ear muffs extension looking down lopping men men at work noise reduction Noisy pruning raised platform safety harness tall tall tree tree up high workmen helmet tree loppers tree lopping professional cleaning dangerous electricity external heights insulators on-high power power-lines power-pole raised raised-platform risks risky safety-harness surface surfaces up-high washing workman connecting connections hydraulics lifting repair-crew replace replacement replacing service