page 130
May 01/2009
Effectivity: 912 Series
Edition 1 / Rev. 1
d04641
INSTALLATION MANUAL
BRP-Powertrain
Axes
x axis
mm
y axis
mm
z axis
mm
-465
87
-160
point of
engagement
P4
P4
M18x1,
2 (0,078 in.)
2,6 (0,102 in)
2,6 (0,102 in)
10 (0,39 in.)
16 (0,63 in.)
-
reduction ratio:
i = 4 i.e. 1/4 of engine speed
As the instruments need a separate power supply and a different design for the
electrical oil pressure sensor, the resistance type instrument (type VDO), which
was supplied by BRP-Powertrain up to now, is not suitable anymore. Suitable
instruments are offered by various instrument manufacturers (e.g. ROAD or
Aviasport).
▲
WARNING:
Certification to the latest requirements such as FAR of EASA
has to be conducted by the aircraft manufacturer.
21.4) Mechanical rev counter (tach drive):
See Fig. 90 and 91
-
location:
ignition housing (1)
-
direction of rotation of the
rev counter shaft (2): clockwise,
see figure below.
-
position of rev counter drive:
-
installation dimensions:
see figures above.
Fig. 91
Fig. 90
05483
00562
04871
2
1
