Mooney M20V - Page 272

MOONEY INTERNATIONAL CORPORATION
M20V SERVICE AND MAINTENANCE MANUAL
Page
Date
9
MAR 2017
Rev Date
CONTROL PANEL F A ULT
LED malfunction = AMBER (High
Pressure Warn).
- Does not operate:
Check Power to Control Panel.
Depress High Pressure Reset:
Illuminates =Check Auto Dimmer
setting.
Does not illuminate =Repair or
replace Control Panel.
Will not cancel
Replace High Pressure Switch.
LED malfunction = GREEN (System
Status Ind.).
- Does not operate:
Check Auto- dimmer setting.
Repair or Replace Control Panel.
Operates Continuously:
Repair or Replace Control Panel.
LED Malfunction = FLASHING RED. - Does not operate:
Check Auto- dimmer setting.
If OK, disconnect cable from
Pin 2 of Connector C1. LED’s should
flashwhenDe-IceorAnti-Ice
selected: If no flash: Check wiring &
Low Pressure Warn Switch (es)
If NOT OK: Repair or Replace
Control Panel.
Operates Continuously:
Check system for
restriction/blockage.
Replace Low Pressure
Warning Switch (es).
30-12-02 - MAINTENANCE PRACTICES
Level I
Daily and/or Preflight - if icing is forecast or expected
This level of checking is intended to determine the immediate serviceability of the equipment without recourse to the
use of tools or special procedures.
Maintenance Practice Notes
Check security and condition of visible components. -
Switch on electrical power. Check that contents display
illuminates and stabilizes at a sensible value within 1.5
minutes. Replenish tank contents if necessary for in-
tended flight.
The time taken for the display to stabilize will depend on
the quantity of fluid present in the tank as the display
reading will rise from 0 at about 0.1 gallon per second.
Operate Airframe/Propeller system at “De- Ice.” Check
that both indicator LED’s flash RED then change to a
single GREEN (opposite De- Ice) as pressure rises.
Check that High Pressure Warning LED does not illumi-
nate.
-
Press High Pressure Reset. Check that AMBER LED
illuminates while switch is depressed.
-
Switch Airframe/Propeller system directly to “Anti- Ice”,
check that pump speed reduces (audible check) and
that GREEN LED, which is illuminated, changes to
match switch selection. Check that de- icing fluid flow is
evident from visible panels if weather conditions permit.
Switch Airframe/Propeller system OFF.
It may not be possible to observe fluid flow if moderate
or heavy rain is falling.
30-12-02