4535 612 10261 HD11 Service Manual Page 168
CSIP Level 1 Preventive Maintenance: Cleaning
Cleaning
Clean the system components and peripherals as circumstaces or Customer Field Service poli-
cies and schedules require.
E
xterior and
Interior
Assemblies
Use a vacuum cleaner, compressed air, or soft-bristle brush to remove any lint and dust from the
airflow passages and components associated with the fan assemblies, PCBs, and any other system
components and peripherals that may have accumulated dust or dirt. Use mild, nonabrasive,
standard computer-cleaning products to clean the monitor, keyboard, system, and peripheral
surfaces.
CAUTION When cleaning the system keyboard and monitor, take care not to get any solution inside the
housings. Also, take care not to scratch the face of the monitor while cleaning it.
Air Filter
Clean or replace the system air filter as its condition warrants. See “To remove the fan air filter”
on page 264.
Trackball
Clean or replace the trackball as its condition warrants.
➤ To clean the trackball
1. Unscrew and remove the bezel that surrounds the trackball on the system control panel. If
you don’t have a trackball-removal tool, a paper clip inserted in one of the small holes in the
bezel can help to start unscrewing the bezel.
2. Push the trackball up from the underside of the control panel to remove it.
3. Clean the trackball with an alcohol-dampened pad.
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