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Keep the vent hose free from kinks. Make sure that the inside is clear.
If you do not use the airplane regularly, you must remove the battery for charging.
WARNING: DO NOT GET BATTERY ELECTROLYTE ON YOU. THE
ELECTROLYTE CONTAINS SULFURIC ACID. THE ACID CAN BURN
YOU.
CAUTION: INSTALL ONLY A BATTERY WHICH IS APPROVED BY THE AIRPLANE
MANUFACTURER.
2. Safety Precautions
Wear protective clothing when you work on the battery (rubber gloves, rubber apron and goggles).
If you get acid on you, apply a solution of sodium bicarbonate and water to the area. Then flush
with large quantities of water. Get medical attention as soon as possible.
If you get acid in or near your eyes, flush with large quantities of water and an eye-wash solution.
Get medical attention immediately.
Obey the maintenance instructions of the battery manufacturer.
Always disconnect the battery when you do work on the electrical system. Disconnect the negative
cable first. Connect the negative cable last.
Electrical Power
DA20-C1 AMM
Page 202
12 Jan 2001 24-31-00 Doc # DA201-C1
Rev. 4
3. Battery
Measure the battery charge and electrolyte level at regular intervals (See Chapter 05-20).
A. Remove the Battery from the Airplane
Detail Steps/Work Items Key Items
(1) Remove the access panel for the battery. At the rear of the baggage compartment.
or
Remove upper cowling on aircraft with
firewall mounted battery.
(2) Disconnect the negative cable from the
battery.
(3) Disconnect the positive cable from the
battery.
(4) Disconnect the ventilation hose from the
battery.
For non-sealed batteries only.
(5) Remove the battery retaining strap.
(6) Remove the battery from the aircraft.
B. Install the Battery
Detail Steps/Work Items Key Items
(1) Clean the battery box. Wipe the battery box
dry.
(2) Put the battery in position in the battery box.
Install the battery retaining strap.
(3) Connect the ventilation hose to the battery. For non-sealed batteries only.
Make sure that the hose is clear.
CAUTION: MAKE SURE THAT YOU CONNECT THE CABLES TO THE
CORRECT TERMINALS. INCORRECT CONNECTION CAN
DAMAGE THE ELECTRICAL AND AVIONIC SYSTEMS
(4) Connect the positive cable to the battery. Apply Dow Corning compound 4 (DC4) to
the battery terminal and cable lug.
(5) Connect the negative cable to the battery Apply Dow Corning compound 4 (DC4) to
the battery terminal and cable lug.
(6) Install the battery access panel.
DA20-C1 AMM
Electrical Power
Doc # DA201-C1
Rev. 0 24-31-00 Page 203
19 Dec 1997
C. Fill the Battery with Distilled Water
Remove the battery from the aircraft before you fill it with distilled water.
WARNING: WEAR PROTECTIVE GOGGLES, RUBBER GLOVES AND RUBBER
APRON WHEN WORKING ON THE BATTERY. THE BATTERY
CONTAINS DILUTE SULFURIC ACID THAT CAN INJURE PERSONS
AND DAMAGE EQUIPMENT
Detail Steps/Work Items Key Items
(1) Clean the outer surface of the battery with
warm water. Wipe the battery dry.
(2) Remove the caps from the cells.
(3) Add water to the level marked on the battery. Use only clean distilled water.
(4) Replace the caps.
D. Disconnect the Battery for Maintenance
Detail Steps/Work Items Key Items
(1) Remove the access panel for the battery. At the rear of the baggage compartment.
(2) Disconnect the negative cable from the
battery.
(3) Disconnect the positive cable from the
battery.
E. Connect the Battery after Maintenance
Detail Steps/Work Items Key Items
CAUTION: MAKE SURE THAT YOU CONNECT THE CABLES TO THE
CORRECT TERMINALS. INCORRECT CONNECTION CAN
DAMAGE THE ELECTRICAL AND AVIONIC SYSTEMS
(1) Connect the positive cable to the battery. Apply Dow Corning compound 4 (DC4) to
the battery terminal and cable lug.
(2) Connect the negative cable to the battery Apply Dow Corning compound 4 (DC4) to
the battery terminal and cable lug.
(3) Install the battery access panel.
Electrical Power
DA20-C1 AMM
Page 204
24 Mar 1999 24-31-00 Doc # DA201-C1
Rev. 1
4. Remove/Install the Battery Relay
A. Remove the Battery Relay
Detail Steps/Work Items Key Items
(1) Remove the cover from the battery.
(2) Disconnect the battery Disconnect the negative cable first.
(3) Remove the cover from the relay box.
(4) Disconnect the wires from the battery relay.
(5) Release the bolts which attach the battery
relay to the relay box.
(6) Remove the relay.
B. Install the Battery Relay
Detail Steps/Work Items Key Items
(1) Put the relay in position in the relay box.
(2) Install the attaching bolts.
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钻石20系列AMM 1(80)
