Compaq Deskpro 4000N - Lithium Battery; Plastic Parts

Compaq Deskpro 4000S and 4000N Personal Computers 4-7
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As each subassembly is removed from the computer, it should be placed away from the work
area to prevent damage.
4.3.3 Cables and Connectors
Most cables used throughout the unit are flat, flexible cables. These cables must be handled with care
to avoid damage. Apply only the tension required to seat or unseat the cables during insertion or
removal from the connector. Handle cables by the connector whenever possible. In all cases, avoid
bending, twisting, or tearing the cables, and ensure that the cables are routed in such a way that they
cannot be caught or snagged by parts being removed or replaced.
CAUTION:
When servicing this computer, ensure that cables are placed in their proper location during the
reassembly process. Improper cable placement can damage the computer.
4.3.4 Hard Drives
Handle hard drives as delicate precision components, avoiding all physical shock and vibration. This
applies to failed drives as well as replacement spares.
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Use only the packaging provided by Compaq for shipping.
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Do not remove hard drives from the shipping package for storage. Keep hard drives in their
protective packaging until they are actually mounted in the CPU.
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Avoid dropping drives from any height onto any surface.
4.3.5 Plastic Parts
Plastic parts can be damaged by the use of excessive force during disassembly and reassembly.
When handling the plastic parts, use care. Do not use a screwdriver or similar tool to pry apart the
plastic components; use the case utility tool provided in the Compaq tool kit, PN 100767-001.
4.3.6 Lithium Battery
The battery that came with the computer is nonreplaceable and is permanently soldered onto the
system board. Do not attempt to remove the lithium battery when installing a replacement battery.
The lithium battery may explode if mishandled.
CAUTION:
Never attempt to remove a lithium battery. You can damage the system board in such an
attempt, thereby making it unusable. Do not abuse or disassemble the lithium battery, as it may explode if
mistreated.