DG Flugzeugbau GmbH
Flight manual DG-500M
7.13 Electrical system
Battery 12 V/26 Ah installed near the C.G. The main fuse is located directly at
the battery box (type Bosch 1191017006, 100 A).
Battery charging by a generator which is installed in the engine. Recharging the
batteries with an automatic battery charger is possible via the 12 V socket in the
rear cockpit. Therefore the main switch must be in the "on" position. The change
over switch in the DEI should be on "Avionik" and all instruments etc. switched
off.
Warning: Use only automatic chargers designed to charge sealed lead acid
batteries. To charge the battery to its full capacity an automatic charger with
14.4 V max. charging voltage is necessary (normal automatic chargers charge
only up to 13.8 V). Such a charger is available through DG Flugzeugbau code
no. Z08.
After charging switch off the main switch as with main switch on there is a small
loss of current.
The DEI (digital engine indicator) controls all automatic and safety functions
and displays the engine indications on digital displays. All current - carrying
wiring confirms to LN aeronautical specifications.
7.14 Pitot and static system see diagram 8 M.M.
Pitot probe in fuselage nose, and static ports a short distance behind fuselage
nose. The airspeed indicator and the altimeter are to be connected to these ports
and probe. Additional holder for a Multiprobe in the fin is to operate variometer
and flight computersystems. To preserve the sealings inside the holder the end of
the probe should be greased with vaseline from time to time.
7.15 Canopies
To jettison the canopies in flight see section 3.2.
Removing a canopy:
Open the canopy, detach the restraining cable and if installed detach the gas strut
from the front canopy. Then close the canopy and operate the red canopy
emergency release handle (right) and the white-red canopy opening handle (left).
Lift the canopy upwards.
Reinstalling a canopy:
Open emergency release and canopy locking levers. Place the canopy in vertical
direction onto the fuselage. Close the emergency release. Open the canopy and
snap in the retaining cable and the gas-strut (if installed).
Checking the canopy emergency release system:
a) check with open front canopy if the gas-struts (if installed) can be
disengaged from their ball fittings (from canopy and from fuselage). Grease
the ball fittings.
b) check with closed canopy if the emergency release handle can be operated
and if the canopy can be removed easily, resp. if the canopy will be lifted
by the gas-strut. Grease the locking pins.
Issued: May 2008 TN843/28 7.16
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