RD0169 (A) KF730 & SB730 OWNER’S MANUAL Page 27 of 28
8.4.2 Periodic
Inspection
Perform complete and thorough inspections on a routine, periodic basis. The interval between
inspections and scope of the inspections will depend on the frequency of system usage and the
conditions of use. This interval must not exceed 1 year.
DANGER: Should any of the below listed types of damage exist, immediately remove the
affected part from service for repair or replacement.
8.4.3 Complete
Inspection
A complete inspection should include, but not be limited to, looking for the types of damage or
failures listed in each group:
8.4.4 Rigging
Components
1. Bends
2. Breaks
3. Broken
parts
4. Corrosion
5. Cracks
6. Cracks in welded joints
7. Deformation
8. Denting
9. Wear
10. Loose parts or fasteners
11. Missing parts or fasteners
12. Binding Hinges, Hinge joints or Hinge Tubes
8.4.5 Loudspeaker
Enclosures
1. Cracks or breaks in the wood
2. Cracks or bends in the covers
8.4.6 Fly-Bar
1. Bends
2. Cracks
3. Cracked
welds
4. Worn
spots
8.4.7 Connecting
Pins
1. Out-of-roundness
2. Plunger binding or other improper
operation
3. Loss of plunger spring action
4. Missing ball bearings
8.4.8 Caster
Pallets
1. Cracks or breaks in the wood
2. Bent
wheels
3. Wheels that bind when swiveled or rolled
4. Damaged
tires
8.5 MAINTENANCE
8.5.1 Performance
Testing
Listening tests and/or formal measurements should be done periodically. The interval between
such tests will depend on the frequency of system usage and the conditions of use. All
transducers should be tested for functionality and proper performance. A sine wave sweep at
approximately 10% of rated power will usually reveal transducer and/or enclosure problems in the
form of distortion, buzzes, or rattles.
8.5.2 Cleaning
Clean the exterior surfaces of the enclosures as required, using a damp cloth to remove any dust
or dirt. After cleaning, use a clean dry cloth to remove any excess moisture.
CAUTION: To avoid damaging the exterior finishes do not use cleaning solvents or abrasives.
8.5.3
Cosmetic Field Repairs
While the enclosure paint finish and wood is of high quality and durability, mars, marks, and other
blemishes will likely appear from normal use. For paint touchup, contact the EAW Service
Department for original factory paint (Sherwin-Williams Polane® 700T, water reducible
polyurethane-acrylic enamel) and instructions for its application. Otherwise, use the closest match
to this paint from a local Sherwin-Williams dealer. For cosmetically damaged wood, use common
woodworking methods and materials as appropriate for the damage.
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