Nautel VS1, Руководство по эксплуатации и обслуживанию

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VS1 Operations and Maintenance Manual Routine maintenance
Page 3-2 Issue 3.1 2013-10-01
Checking hardware
All hardware must be checked at least once a year. Nautel recommends more frequent checking if the
VS1 is subjected to above average thermal cycling, caused by turning the VS1 on and off.
• To prevent damaging the hardware, ensure that the proper size tools are used. In most cases,
hardware is metric.
• A mounting surface or terminal that has changed colour indicates a loose hardware connec-
tion.
Battery replacement
The VS1's exciter/control PWB contains a battery backup circuit that allows the time and date to
update during ac power failure. The battery should be replaced every 12 months. See
“Replacing the
exciter/control PWB battery” on page 3-7 .
Replacing a damaged air filter
If an air filter becomes damaged, replace it as follows:
Parts and tools
– Replacement air filter
– Hex tool, 3 mm (Nautel Part # HY93, provided in ancillary kit)
Procedure
Take the following steps to replace the air filter in the front panel of the transmitter (see Figure 3.1 on
page 3-3 ):
1. Order a new filter, as necessary, from Nautel (part # HAM77).
2. Gain access to the old filter by removing the front panel grill section secured with four
captive M4 hex screws. Use the HY93 hex tool from the ancillary kit and loosen the screws
just enough to allow removal of the front panel grill.
3. Temporarily remove the PVC retaining plate from the grill section and remove the old filter.
4. Insert the new air filter, re-insert the PVC retaining plate into the grill section and then re-
install the front panel grill.
5. Dispose of the damaged air filter.