Page 47 - Plastics News September 2018

FEATURES

‡ Inspection of electrical devices and corresponding The twin-screw extruder is typically installed after the
wiring; mezzanine and support structures.
‡ &RQÀUPDWLRQ RI WDJJLQJ DQG ODEHOLQJ Rigging tip #1: Don’t lift a machine any higher than is
required, and move very slowly. (Professional riggers never
‡ Heat-zone check-out;
want a lifted load to have any momentum.)
‡ ,GHQWLÀFDWLRQ YHULÀFDWLRQ RI SURGXFW FRQWDFW Rigging tip #2: Know the approximate weight of each item
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before attempting to lift it, and never lift a load over a
‡ Overview and demonstration of power-up procedure; person (web straps and chains can break).
‡ Verification of temperatures, speeds and other 'RQ·W DQFKRU DQ\ PDFKLQHU\ WR WKH FRQFUHWH ÁRRU XQWLO
indicated values; HYHU\WKLQJ LV LQVWDOOHG DQG LW·V FRQÀUPHG WKDW DOO WKH
‡ Complete system dry test; positions and alignments are correct (an exception may
be necessary for some machinery because of its size and
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documentation. PDFKLQHU\ LV LQ WKH FRUUHFW SRVLWLRQ DQFKRU WKH À[HG
Installation phase PDFKLQHV WR WKH ÁRRU

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Adequate space, light and administrative assistance may
not always be available, but establishing the resources
that are available will help ensure a successful completion
of a project. Careful planning and implementation are the
keys to success, including:
Mechanical:

All workers must have adequate PPE (Personal Protection
Equipment). Generally, this includes, as a minimum, (OHFWULFDO 5HYLHZ WKH ÀHOG ZLULQJ VSHFLÀFDWLRQ ZLWK WKH
safety shoes, safety glasses, a hard hat, and work gloves. electrical contractor to ensure it follows the provided
Explosion-proof and hazardous materials require special cabling- and conduit-run instructions. Make note of any
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and provide multiple copies of all the mechanical and develop. Review each piece of equipment’s wiring diagram
electrical drawings. Require that all responsible parties ZLWK WKH FRQWUDFWRU DQG FRQÀUP WKH DYDLODELOLW\ RI WKH
have access to information as needed. various types of wire and cables required.
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will be used to lay out the equipment as each skid is WKH HOHFWULFDO ZRUN LV EHLQJ GRQH &RQÀUP WKH RQ VLWH
unpacked. Keep it separate from where the equipment procedures. There should be absolutely no way any part
will be installed, but not too far away. Open cardboard of the system can be energized.
boxes so you can see what’s inside. Keep the parts from 7KLQN WKURXJK ZKLFK PDFKLQHV DUH À[HG DQG ZKLFK DUH
each supplier together. Take pictures of incoming packages moveable. (Example: underwater-pelletizer cart moves
and parts.
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8VH WKH JHQHUDO DUUDQJHPHQW GUDZLQJ WR PDUN WKH ÁRRU connections are planned. All interconnecting wires/
with the rough outline in chalk of each major piece of cables should be marked according to the wiring diagram.
equipment or component. Changes/corrections should be noted for the as-built
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Carefully consider the order of installation. Generally,
start with larger machines and work toward smaller pieces. Do not apply power to the main panel or any other parts
Remember not to position something large, like the power of the system until the appropriate technician is on-site
panel, so that it blocks access to another part of the line. and has inspected the installation.

47 September 2018 Plastics News