7) Electric Fuel Pumps - Rotax 914 series Installation Manual

19.4.7) Electric fuel pumps

11,75 8
0,46 in. 0,32 in.
Fig. 78
05120
Effectivity: 914 Series
Edition 2 / Rev. 0
INSTALLATION MANUAL
See Fig. 78/79.
- installation:
- voltage:
- connections:
suitable for ring terminals to DIN 46225
For radio interference suppression a capacitor (Fig. 69 Pos. (41)) of 1µF /
100 V has to fitted as near as possible to the terminals.
▲ WARNING: The certification to the latest requirements such as FAR or
EASA has to be conducted by the aircraft manufacturer.
M5
M4
+ Anschluß
connector
- current input:
The current input per fuel pumps
The diagram shows the current input over pressure.
Take note of the following:
- The diagram outlines minimum capacity at nominal voltage on pump.
- Pressure- and suction head are "ZERO".
- Graph is effective on a seasoned pump only, running-in period
approx. 30 min.
- Fuse:
Each of the two fuel pumps has to be protected by y slow blowing 5A fuse
in accordance with wiring diagram (Fig. 69).
BRP-Rotax
see fuel system, section 14
12 V/DC
+ terminal: M 4 screw connection
- terminal: M 5 screw connection
3,0 A
2,5
2,0
1,5
0 250
by one fuel pump ~ 1,7 A
by two fuel pumps (Series) ~ 1,5 A
500 750 1000
Δ p
Fig. 79
02505
1250 hPa
page 118
July 01/2008