J.P. Instruments EDM 730 Instrument Installation Manual - Manual (Page 13)

FAA APPROVED INSTALLATION MANUAL FOR THE EGT-701 Report 103
INSTALLING THE EGT-701 SCANNER® 1/20/09
Rev-E Page 13 of 30
15) RPM Sensor installation
There are four 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 – pressurized 4000, -6000 series use JPI P/N 420809. For the
Bendix pressurized -1200 series use P/N 420807. Dual magnetos use JPI PN 420808. For the Bendix -20 series and
Slick 600 use JPI P/N 420806. Mount the sensor as shown in the appropriate diagram below. Note: this is eligible for
installation on all 4 & 6 cylinder engines only.
Bendix Magnetos Slick Magnetos
Bendix Dual Magneto
JPI PN 420808
non-pressurized
engine
Mount sensor side of bracket towards
magneto body
Bendix -20, -21, -200, 1200 series
non-pressurized
JPI 420815-2
Connector to harness
e
ngine
Connector to harness
Slick 6000, 4000 series
pressurized
JPI 420809
e
ngine
TO
P
Sensor ring munted under vent plug.
Stem at right angles to magneto center line
Mount sensor side of bracket towards
magneto body
Alternate bracket location
Vent plug
Spacer ring
Sensor ring bracket
Magneto body
Connector to harness
Slick 6000, 4000 series
non-pressurized
JPI 420815-1
eng
ine
Bendix 1200 series
pressurized
JPI 420807
Connector to harness
e
ngine
Alternate bracket locations
TO
P
position limit
position limit
Mount sensor side of bracket towards
magneto body, positioned over the magnet
armature
rev Dec 2010
en
gin
e
Slick 600 series
JPI PN 420806
non-pressurized
Sensor must be over
moving magnet armature
Remove this screw
to mount sensor
bracket