MT-30
Installation, Operation & Maintenance
06225-03H.doc
33 of 47
AeroVironment, Inc
5.0 Maintenance
This section describes preventative maintenance.
Preventative maintenance may
require access to the interior of the AC Inverter and/or the DC Converter cabinets,
and should only be performed by an AeroVironment authorized technician.
The
following warning should be observed for all such activity.
WARNING:
You must make sure that the AC circuit breaker is off and the system has been off
with the ON/OFF or EMERGENCY OFF button in the OFF POSITION for a minimum of five
minutes before opening cabinet for service.
5.1 Preventative Maintenance
The MT-30 requires very little regular maintenance. Occasional preventative
maintenance as described below should keep the system in good operating condition for
many years.
Important Note:
Coolant used in this product is 25% “Peak” and 75% distilled water (referred as “AV
approved coolant” hereunder). Cooling system may deteriorate and cause failure if any
other cooling fluid is used. Contact AeroVironment Service Department if you need
help in procuring “Peak”.
•
Remove dust and dirt from the system every six months.
. Avoid operating the
system in a location that is especially prone to accumulation of dust or other
particulate matter.
•
Dust build up should be removed from all interior surfaces. The
recommended device for cleaning is a vacuum cleaner with anti-static
provisions, specifically designed for use on electronic equipment. Be sure
not to disrupt any of the wiring or dislodge any components while doing this.
DO NOT clean any of the electrical components with water or water-based
solutions, as they may damage the components or cause malfunctions.
•
Change the coolant mixture once every year
. Before changing the coolant allow
the MT-30 to cool to room temperature.
•
First remove the left side panel (AC control panel side) of the cabinet. You
will find a stop valve connected to the cooling system hoses near the pump
assembly. This valve is normally closed. When opened, the valve allows
coolant to be drained through a drain. The drain tube is flexible and can be
guided through the open front of the cabinet into an appropriate receptacle.
Once you have located the drain valve and directed the drain tube, remove
the reservoir cap (inside rear door), open the valve and let the coolant drain.
•
After all of the coolant mixture has drained, close the valve and proceed to
refill the coolant. With the pump off, fill reservoir (with AV approved
coolant) until coolant is within 1” of the top of the reservoir. Turn the pump
on and continue filling with coolant until reservoir remains full within 1” of
cap. Turn off the pump and let the system settle for approximately 5
minutes. Turn on the pump and re-fill the reservoir to within 1"of the cap.
