FAA Approved Installation Manual for the EDM-960
Primary Engine Data Management System
Report No 909
Page 26 of 45 Rev A
Date 4-27-2010
27. 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 420815-1. For the Bendix -1200 use P/N
420815-2. Dual magnetos use JPI PN 420810. Mount the sensor as shown in the appropriate diagram below.
S lic k
M a g n e to s
M o u nt s e n so r s id e o f b ra ck e t tow a rd s
re v M a r 2 0 0 4
B e n d ix
M a g n e to s
B e n d ix 1 2 0 0 s e rie s
p re s s u rize d
J P I 4 2 0 8 0 7
C o n n ec to r to h a rn e ss
e
n
g
in
e
A ltern a te b rac k e t lo c a tio n s
TO
P
po s ition lim it
po s ition lim it
M o u n t s e n s or s id e o f b ra ck e t to w a rd s
m a g n eto b o d y, p o s itio n e d o v e r th e m a gn e t
a rm a tur
e
C o n ne c to r to h a rn es s
S lic k 6 0 0 0 , 4 0 0 0 s e rie s
n o n -p re s s u riz e d
J P I 4 2 0 8 1 5 -1
e
n
g
in
e
C o n ne c to r to h a rn es s
S lic k 6 0 0 0 , 4 0 0 0 s e rie s
p re s s u rize d
J P I 4 2 0 8 0 9
e
n
g
in
e
T
O
P
S e n so r rin g m u n te d u n d e r ve n t p lu g .
S te m a t rig h t a n gle s to m a g ne to c en te r line
m a g n e to
b o d y
A ltern a te b rac k e t lo c a tio n
V en t p lu g
S pa c e r ring
S e n s or rin g bra c k e t
M ag n e to b o d y
e
n
g
i
n
e
S lic k 6 0 0
s e rie s
S e n s or m u s t b e
ov e r
m o v ing m a g ne t
arm a tu re
R e m o ve th is
s cre w
to m o u n t
s e n so r
b ra ck
et
B e n d ix -2 0 , -2 1 , -2 0 0 , 1 2 0 0 s e rie s
n o n -p re s s u rize d
J P I 4 2 0 8 1 5 -2
C o n n ec to r to h a rn e ss
e
n
g
in
e
B e n d ix D u a l
M a g n e to
e
n
g
in
e
M o u nt s e n so r s id e o f b ra ck e t tow a rd s
m a gn e to
b od y
TO
P
R P M S IG G R N
R P M G N D B L K
R P M P W R R E D
1
