TF5 - Manual
45
7.6 Work ON the Electronics
Working at the electric systems is only allowed in de-energised condition. The capacitors in the
control system must be fully discharged, this process takes about 10 minutes. Before start
working at the electrical systems:
• Only personnel trained and certied by TowFLEXX is allowed to do these work
• Before starting work, make sure that all precautions have been taken to avoid
electrical accidents.
• Park the aircraft tug in a secured area.
• Pull the battery connectors
• Take o ring, bracelets, watches and other jewelry
ATTENTION! Electric current ows. This procedure requires special care. Failure
to do so may result in personal injury and property damage!
7.7 Battery Replacement
Only personnel trained and certied by TowFLEXX is allowed to do these work.
In case of a defect the batteries can be exchanged in just a few steps:
1. Remove the eyebolts in front of the aircraft tug.
2. Pull the side-covers about 50mm to the front.
3. Open the covers sideways. Take care that the cables underneath the cover do not get too
much tension.
4. Take o the black caps of the battery connectors and store them safely
5. Remove the battery connectors and jumpers. Take care to not cause a short in any case.
6. Loosen the stud holding the battery in place.
7. Use the handles on the battery to pull it out.
8. Insert the new battery. (Only use parts that are certied by the manufacturer!).
9. Do steps 1-5 in reverse order. Ensure that the correct polarity is used! Otherwise
irreversible damage may be caused.
Tip: We recommend to use a 13mm metric wrench to exchange the batteries.
Tip: To exchange the batteries, we recommend to get help of a second person.
ATTENTION! Make sure to not forget to reinstall the black battery caps to the
battery connectors. Otherwise it is possible to cause a short circuit in the
batteries.
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