Wiltron 680 B Series, Operation Manual

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6-4
ROUTINE MAINTENANCE Routine maintenance that can be performed by the operator consists of
cleaning the fan filter, cleaning the data display, and replacing a defec-
tive line fuse.
Cleaning the
Fan Filter The CW generator must always receive adequate
ventilation. A blocked fan filter can cause the instru-
ment to overheat and shut down. Check and clean
the rear panel fan honeycomb filter periodically.
Clean the fan honeycomb filter more frequently in
dusty environments. Clean the filter as follows:
Step 1 Remove the filter guard from the rear
panel by pulling out on the four panel fas-
teners holding it in place (Figure 6-1).
Step 2 Vacuum the honeycomb filter to clean it.
Step 3 Install the filter guard back on the rear
panel.
Step 4 Press in on the panel fasteners to secure
the filter guard to the rear panel.
Cleaning the
Data Display The data display of the CW generator is protected by
a plastic display filter. To clean the display filter, use
mild soap or detergent and water, or a commercial
window cleaner. When cleaning use a soft, lint-free
cloth. Do not use abrasive cleaners, tissues, or paper
towels which can scratch the plastic surface.
OPERATOR ROUTINE
MAINTENANCE MAINTENANCE
Panel
Fastener (4)
Filter
Guard
Fan
Filter
Figure 6-1. Removing/Replacing the Filter Guard
680XXB OM 6-13