Mooney M20TN, Service And Maintenance Manual

Page: 259 / 1169

MOONEY AVIATION COMPANY, INC.
M20TN SERVICE & MAINTENANCE MANUAL
Page
Date
5
2006
Rev Date
28--00--00 -- GENERAL
Internally sealed, integral fuel tanks are in the L & R, for-
ward, inboard sections of the wing. Fuel feeds from ei-
ther tank to a selector valve through a gascolator, with a
low--point drain, through the emergency boost pump to
the engine--driven fuel pump and to the fuel injector
system on the engine. Fuel quantity indicators are elec-
trically operated with 2 transmitters (inboard and out
board) located in each tank.
Fuel that is not burned at combustion is routed back
through the fuel selector valve and returned to the
source fuel tank.
FUEL
CHECK
VENT
OUT
B
OARD
O
U
TLET
S
CREEN
DRAIN
LEFT
FUEL
TANK
SELECT
O
R
VAL
VE
FIREW
A
LL
INDICA
TO
R
FUEL
FLO
W
FUEL
FLO
W
TRANSDUCER
FUEL
METERING UNIT
FUEL
PUMP
ENGINE
DRIVEN
GASCOL
A
TOR
DRAIN
ELECTRIC FUEL
PUMP
FILLER
CAP
VENT
R.
FUEL
QTY
.
L.
FUEL
Q
T
Y.
INBOARD
O
U
TLET
RIGHT
F
UEL
TANK
DRAIN
VAL
VE
FILLER
SCREEN
ASSY
INDICA
TO
R
INDICA
TO
R
ASSY
TRANSMITTER
TRANSMITTER
OUT
B
OARD
TRANSMITTER
VA
LV
E
*
VA
LV
E
VA
LV
E
INBOARD
TRANSMITTER
TN28--1
CAP
FUEL
DISTRIBUTION
SYSTEM
*
A
PLACARD
LOCA
TED
ADJACENT
TO
FUEL
CHECK
VA
LV
E
INDICA
TES
D
IRECTION
OF
F
L
O
W
.T
H
E
W
ORD
“HINGE”
ON
TO
P
OF
THE
F
UEL
CHECK
VA
LV
E
M
UST
BE
ORIENTED
FACING
UP
,T
OW
ARDS
CABIN
FLOOR,
F
OR
CHECK
VA
LV
E
TO
F
UNCTION
C
ORRECTL
Y.
FUEL SYSTEM
FIGURE 28--1
28--00--00