13
Maintenance
solenoid and re-plug in the wires.
Cleaning
Automotive cleaners, waxes,
and polishes are suitable to use
on your tug.
We designed your tug to resist
rain and snow. However, it is
not waterproof. Exercise the
same type of care with your tug
as you would for your aircraft or
automobile.
Under the cover
Periodically cleaning under
the cover helps protect against
corrosion and possible electrical
control problems created by dirt,
grime, and chemicals that are
part of the operating environ-
ment and that typically exist in
battery-powered systems.
When working around any
battery-powered system, proper
safety precautions should be
taken. These include, but are not
limited to: proper training, wear-
ing eye protection, and avoiding
loose clothing and jewelry.
Use the following cleaning pro-
cedure for routine maintenance.
Never use a high-pressure wash-
er to clean the interior.
1. Remove power by discon-
necting the battery.
2. Discharge the motor con-
troller’s capacitors by con-
necting a load (such as a
contactor coil) across the
controller’s B+ and B- termi-
nals, or wait 15 minutes.
3. Remove any dirt or corrosion
from the power and signal
connector areas. The inte-
rior components should be
wiped clean with a moist rag.
Dry it before reconnecting
the battery.
4. Make sure the connections
are tight.
Summary of Contents for Echo 12
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