6 testing and maintenance of the system – Nexo GEO T User Manual

Page 40

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GEO

T

RIGGING PROCEDURE

• All other GEO T4805’s should have their linking bars returned to 0.125° position to ensure that

the cabinets stay vertical when landing.

• Position the flight case underneath the array and carefully lower the array into the flight case,

taking care not to catch any parts in the case.

• NB: When lowering the system into the flight case, alignment is easier if two operators lift the

flight case onto the bottom of the system as it is lowered. This ensures that the lowest cabinet
does not hit the flight case extrusion if the case is mis-aligned.

• Remove front and rear push pins from the two last cabinets, and carefully lift the array using both

motor hoists until the array is clear. Ensure the array is vertical at all times.

• Repeat the procedure for all cabinets.
• Remove the LEVA1500 chain hook from the GEO T font Kelping Beam, the GEO T kelping

beam and the GEO T bumper. Remember to replace all the pins back in their respective beams.

• Reassemble front and rear kelping beams, and pin them into the closed position for transit.

4.6 Testing and Maintenance of the system

• General: Geo is a precision piece of equipment and requires regular attention to maintenance in

order to give long and reliable service. NEXO recommends regular testing of loudspeaker rigging
components, preferably using a suitable test rig coupled with a visual inspection.

• Fasteners: there are several critical points in the Geo T cabinets.

Of primary concern are:

a) The machine screws attaching the rigging system to the cabinet.

b) The screws attaching the rear aluminium section to the cabinet.

c) The screws attaching the directivity flanges to the front of the cabinet.

These fasteners should be regularly checked and tightened as necessary.

• Cleaning: The exterior of the cabinet and the rigging system can be cleaned with a damp cloth

soaked in mild soapy water. On no account use solvent based cleaners , which may damage the
finish of the cabinet

After cleaning, the rigging system must be treated with a suitable lubricant to prevent rusting. NEXO
recommends the use of Scottoil FS365 which is a water-based lubricant with a mixture of machine
oil, surfactant and anti-rust treatment.

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