Mooney M20TN, Service And Maintenance Manual

Page: 287 / 1169

MOONEY AVIATION COMPANY, INC.
M20TN SERVICE & MAINTENANCE MANUAL
Page
Date
15
2006
Rev Date
2.7
2.9
FLUID INDICATOR CALIBRATION
FIGURE 30--3
Calibration
Pot
High Pressure Warning
Cancel Switch (recessed)
Depress with ball pen
or pencil point
Windshield Pump Switch
Left
Center
Right -- Pump 1 ON
-- OFF
-- Pump 2 ON
Indicator Lamp (green/red)
Green
Red (flashing)
-- NORMAL flow selected
-- low pressure warning
Main Pump Mode Select Switch
Up
Center
Down -- MAXIMUM (max flow rate)
-- OFF
-- NORMAL (normal flow rate)
Indicator Lamp (green/red)
Green
Red
-- MAXIMUM flow selected
-- low pressure warning
Tank Contents Indication
Digital display of fluid
remaining in gallons and tenths
Main Pump Select Switch
UP
DOWN -- Pump 1
-- Pump 2
Indicator Lamp (amber)
High pressure warning
when ON indicates the
need to replace filter element
TKS CONTROL HEAD
FIGURE 30--4
30--12--03 -- FLUID LEVEL CALIBRATION
To adjust fluid level reading at A/C instrument panel
TKS Control Head:
1. Level aircraft to flight level attitude.
2. Switch electrical power ON.
3. Locate TKS fluid filler tube accessible through ac-
cess panel on right side aft fuselage.
4. Fill fluid tank to just at overflow with approved de--
icing fluid. This level of fill tops off reservoirs to hold 6.3
gallons of fluid (unusable volume of fluid is 0.10 gallon =
6.3 gallons).
5. Locate TKS adjusting POT on left center portion of
TKS control head (see Figure 30--4). Adjust POT with
screwdriver until “6.2” is indicated on Fluid Level Indica-
tor (unusable volume of fluid is 0.10 gallon = 6.3 gal-
lons).
6. Remove any spilled de--icing fluid per instructions
in Section 30--11--01.
7. Turn aircraft power OFF.
8. Place aircraft on ground.
30--30--00 -- PITOT -- DESCRIPTION AND OPERA-
TION
A standard heated pitot tube is located on left wing at
Wing Station No. 145. The pitot heat switch/circuit
breaker, located on lower left instrument panel, sup-
plies power to the pitot tube heating element. An AM-
BER light will illuminate on annunciator panel when Pi-
tot Heat switch has been pushed ON and current is
being drawn by heating element. On some export air-
craft, an AMBER light will illuminate with pitot heat
switch OFF and will not be illuminated with switch ON
and pitot heat properly operating. When the optional
TKS System for flight into known icing conditions is
installed, the heated Pitot tube is a part of the TKS sys-
tem.
30--31--00 -- STALL WARNING VANE -- HEATED
The stall warning vane is heated when the optional TKS
flight into known icing system is installed on the M20TN
(See Figure 30--1). The Stall Warning Vane heat is acti-
vated when the Pitot Heat switch is selected ON.
30--60--00 -- PROPELLER DESCRIPTION & OP-
ERATION
Propeller icing protection may accomplished by instal-
lation of the optional TKS System for flight into known
icing. See 30--10--00 -- Airframe Icing Protection for de-
scription of the propeller anti/de--ice system.
AUGUST 2010
30--12--03