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IO-390-D Series Engine Installation and Operation Manual
Engine Installation Overview
The installation instructions in this manual are basic guidelines. When installing the engine in the
airframe, follow the airframe manufacturer's installation instructions.
NOTICE: All requirements identified in the chapter "Requirements for Engine Installation" must
be completed before engine installation.
Table 1 identifies steps and section references in this chapter for engine installation.
Step
Section References in This Chapter
1
Install the Engine on Mounts
2
Connect the Wiring Harness
3
Install External Accessories (as necessary)
4
Connect the Linkages
5
Install Baffling
6
Install the Compressor Belt (as necessary)
7
Install the Propeller
8
Connect Fuel Lines
9
Connect Oil Lines
10
Install Components That Had Been Removed Before Engine Installation
and Any Additional Ship Loose Components
11
Add Oil
12
Engine Pre-Oil Procedure
13
Add Fuel
14
Final Installation Inspection
15
Close the Engine Compartment
Step 1. Install the Engine on Mounts
CAUTION
MAKE SURE THAT THE ENGINE MOUNTS ARE ALIGNED AND NOT
BENT OR DEFORMED. IF THE ENGINE IS INSTALLED ON DEFORMED
ENGINE MOUNTS OR MISALIGNED, THE ENGINE CAN BE PUT UNDER
UNUSUAL STRESS WHICH CAN CAUSE MALFUNCTION.
1. Lift the engine and put it into the airframe. Refer to the "Lift the Engine" section in the
"Engine Reception and Lift" chapter in this manual.
2. Install hardware to securely attach the engine to the airframe and isolation mounts.
3. Torque the mounting hardware per the aircraft manufacturer's maintenance manual.
4. Disconnect the hoist from the lifting eyes.
5. Make sure the airframe ground straps are connected to the engine mounts.
© 2020 Avco Corporation. All Rights Reserved
March 2020
ENGINE INSTALLATION
Table 1
Engine Installation Steps and References
Engine Installation
Page 17
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