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E450AJ BOOMLIFT for DECAM Tasks
The E450AJ boom lift equipment arrives to CTIO this week and several movements and tasks around 4m building were performed in order to confirm: - Rigging and lifting procedure. Operative ranges. Behavior : Oscillation, response time, Emergency fuses. Dario Guajardo (TelOps) and F. Munoz (ETS) were trained to safe operate this stuff by the vendor, last week before arrival.
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E450AJ BOOMLIFT for DECAM Tasks
Handling to C-floor: - Quite complex task: 5 people, 4 hours - Requires M&P floors sub hatch removal , AC chamber up. Both 50-5 hook at bridge crane to be used. - Specific 8m slings + 6 shackles (purchased).
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E450AJ BOOMLIFT for DECAM Tasks
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E450AJ BOOMLIFT for DECAM Tasks
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E450AJ BOOMLIFT for DECAM Tasks
Stow at C-floor - Stuff weighs 6.7 tons and must be parked west side of telescope (beams frame can resist this load) - Check always interference with dome rotation - Charge batteries ALL NIGTHS. Don’t lead batteries to a full discharge. (supply: 220 VAC.) - Equipment is stow by locking 3 safety points: 2 push buttons plus a key. - No oil leaks detected after 3 operative days. During shutdown both battery charging and key management should be under foreman check list.
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E450AJ BOOMLIFT for DECAM Tasks
Operative: - boomlift height is 45 ft (13.8m) straight vertical. People could reach from c-floor to lower side of dome catwalk (bridge crane structure) ~ meters. Horizontal limit is 7m at 5m height - Hydraulic systems at the primary and secondary arms has no delay in response, lifting speed is adjusted by a controlled valve. Delay could increase to few seconds at the top vertical position. (TAMU test) - For complex arms configuration, the basket could reach the position in 90s (telescope scaffold access, over the horseshoe structure ) - Oscillation at top position is slightly affected by dome rotation
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E450AJ BOOMLIFT for DECAM Tasks
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E450AJ BOOMLIFT for DECAM Tasks
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E450AJ BOOMLIFT for DECAM Tasks
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Expected DECAM Shutdown access to telescope
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Expected DECAM Shutdown access to telescope
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