JPI EDM-930 - 36. RPM Sensor installation

FAA Approved Installation Manual for the Report No 908
EDM-900 and EDM-930 Page 28 of 55 Rev I
Primary Engine Data Management System Date 1-18-2013
36. RPM Sensor installation
Use the J3 connector harness 790420 and connect the 3 leads using the supplied 3-pin connector and pins. There are
three types of magnetos commonly in use. You must have the correct RPM sensor for the magneto installed in the
aircraft. The following part numbers apply: Slick -4000, -6000 use JPI P/N 420815. For the Bendix -1200 use P/N
420815. Dual magnetos use JPI PN 420810. Mount the sensor as shown in the appropriate diagram below.
Slick
Magnetos
M ount senso r side of bra cket tow ard s
rev Mar 2004
Bendix
Magnetos
Bendix 1200 series
pressurized
JPI 420807
Connector to harn ess
engine
Alternate brac ket loca tion s
T
O
P
position lim it
position lim it
M ou nt sensor side of bra cket towards
m ag neto b od y, position ed o ver the m agnet
arm atur
e
Co nnector to ha rness
Slick 6000, 4000 series
non-pressurized
JP I 420815-1
engine
Co nnector to ha rness
Slick 6000, 4000 series
pressurized
JP I 420809
engine
TOP
Sen sor rin g m un ted unde r vent p lug.
Stem at right a ngles to m ag neto c enter line
ma gn eto
body
Alternate brac ket loca tion
Ven t plu g
Spa cer ring
Sen sor rin g bracke t
M agn eto bo dy
engi
ne
Slick 600
series
Sen sor m ust be
over
mo ving m ag net
arm ature
Rem ove this
screw
to m ou nt
sen sor
brack
et
Bendix -20, -21, -200, 1200 series
non-pressurized
JPI 420815-2
Connector to harn ess
engine
Bendix Dual
Magneto
engine
M ou nt sensor side of bra cket tow ards
m agn eto
body
T
O
P
RPM SIG GRN
RPM GND BLK
RPM PW R R ED
1