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It is only necessary to maintain those supplements which pertain to your specific airplane’s configuration.
9.2. INDEX OF SUPPLEMENTS
NOTE
It is only necessary to maintain those supplements which pertain to optional equipment that may be installed in your airplane.
Supplement No. Title Pages
1 External Power Operation 10
2 Winterization Kit 4
3 Recognition Lights 4
4 Gross Weight Increase (800 Kg) 16
5 S-Tec Autopilot 10
6 VM1000 Engine Instruments 7
7 Auxiliary Fuel System 6
8 Stick Mounted Trim Switches 3
9 20 US Gallon Fuel Tank 3
10 Reversed Instrument Panel 3
11 Pitot Heat Operation 5
12 Brazilian Placards and Markings 8
13 Garmin G500 Integrated Display System 21
CHAPTER 9
SUPPLEMENT 1
EXTERNAL POWER OPERATION
1.
GENERAL ................................................................................................................... S1-2
2.
OPERATING LIMITATIONS ....................................................................................... S1-4
3.
EMERGENCY PROCEDURES................................................................................... S1-5
4.
NORMAL PROCEDURES .......................................................................................... S1-5
5.
PERFORMANCE ...................................................................................................... S1-10
6.
WEIGHT AND BALANCE ......................................................................................... S1-10
1. GENERAL
This supplement addresses the operating procedure for a DA20-C1 aircraft equipped with an optional External Power Unit (EPU). The EPU receptacle and related circuits provide for the connection of an external power source for various ground operations, e.g. maintenance, battery charging, starting.
CAUTION
OVER-VOLTAGE PROTECTION DOES NOT EXIST. DO NOT CONNECT ANY POWER SOURCE OTHER THAN 12 VOLT DC BATTERY OR 14 VOLT (NOMINAL) DC GROUND POWER CART.
The circuit provides protection in the event that the external power source is connected in reverse polarity. A switch in the cockpit to the left of the light switches allows the EPU relay to close once the external power source is connected and power is available. A light in the cockpit indicates that power is available at the receptacle or that the EPU relay has remained closed following a disconnect (see normal procedures).
On aircraft C0001 through C0148 and C0150 with an EPU installed, a relay bypass circuit is provided to enable the battery relay to be closed if the battery has been discharged so much that it does not have enough power to close the relay by itself. Depending on the state of battery discharge, the battery relay may take several minutes to close. This circuit is not installed on aircraft C0149 and C0151 onwards. See Figure 1.1 for location and Figure 1.2 for simplified schematic. EPU plug Cole Hersee P/N 11042 is required to connect to the receptacle. This receptacle is located in one of two locations. Aircraft serial numbers C0001 through C0148 and C0150 have this receptacle located on the fuselage at the rear portion of the wing root. Aircraft serial numbers C0149 and C0151 onwards have this receptacle located on the fuselage in front of the left-hand wing root.
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本文链接地址：钻石20系列飞机维护手册 DA 20 SERIES AIRPLANE MAINTENANCE MANUAL(63)
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