Xerox 4540 Service Manual - Page 145

▼ To Replace a Fan Module (CRU) Each fan module (also known as a fan tray) has two fans. The server has five fan modules (10 fans per server). This component is customer replaceable. Note - Enclosure cooling might be affected by dust and contaminant build-up. It is recommended that the enclosure be opened and checked approximately every six months, or more often in dirty operating environments. Check component heat sinks, fans, and air openings. If necessary, clean the enclosure by brushing or blowing contaminants or carefully vacuuming contaminants from the enclosure. Note - This component can be replaced by anyone. TABLE 3-8 lists the qualified part numbers for this component. This part number is subject to change over time. For an updated list of components, see the following web site: http://sunsolve.sun.com/handbook_pub/Systems/ TABLE 3-8 Sun Fire X4500/X4540 Fan Module Component Fan module Part Number #541-0458 Caution - The fans are hot-swappable and can be removed and replaced while the system is running. Do not keep the fan tray access cover open for more than 60 seconds at a time to avoid overheating the server. Remove and replace only one fan module at a time. Fans are labeled FT0 (fan tray 0) to FT4 (fan tray 4). See "Locations of Components" on page 3-2. 1. If the server is in a rack, slide it far enough out of the rack so that you can access the fan modules. Chapter 3 Maintaining the Sun Fire X4500 and X4540 Servers 3-25