200 WATT BAND II VHF FM POWER AMPLIFIER86. MAINTENANCEThe only maintenance the amplifier needs is some periodic cleaning. Following anumber of weeks of continuous 24/7 use (specified below), the amplifier should beshut down and disconnected. A technician or engineer needs to take of the top lid byremoving the 6 self tapper screws, 2 on the top edge on each side and 2 on the topedge at the back. Using a soft new and clean paint brush with a vacuum clean hosethe dust should be gently brushed and sucked away from all areas inside. Payparticular attention to the actual fans at the rear and the fan vents at front and rear.The number of weeks when cleaning should be done.4 weeks in very dusty, sandy and salty environments for installations near to the sea.6 weeks in very dusty and sandy environments.8 weeks in very dusty environments, public areas, office blocks etc.12 weeks in generally clean environments.Do not adjust any factory set internal controlsUnder NO CIRCUMSTANCES should any adjustments be made to the internalcontrols. Such adjustments could damage the unit and invalidate the warranty andalso cause serious interference to other users of the electromagnetic spectrum.7. LEGAL ADVICEWe sell this equipment to professionals and organizations in good faith it will be usedcorrectly and legally. Most countries in the world require licensing for this type ofequipment. It is the customer’s responsibility to check relevant laws, directives,regulations and licensing requirements before putting this product into service withan antenna system. You, the customer or user agree to defend, indemnify and holdharmless Aareff Systems Limited, it’s employees and agents, from and against anyclaims, actions or demands, including without limitation legal and accounting fees,alleging or resulting from improper or unlawful use of this equipment.