Table of Contents
Advertisement
Accessory
Type of Drive
Drive
Starter
Alternator
Alternators (2)
Accessory
AND20000**
Drive*
Tachometer*
Propeller
AND20010***
Governor
*
Requires an accessory housing with drive provisions.
** Except for rotation and torque limitations.
*** Except for torque limitations.
†
With alternator pulley diameter of 3.10 in.
♦
With alternator pulley diameter of 2.70 in.
Accessory
Type of
Drive
Drive
Starter
Alternator
Alternators (2)
Accessory
AND20000**
Drive #1*
Accessory
AND20000
Drive #2*
Tachometer*
Propeller
AND20010***
Governor
*
Requires an accessory housing with drive provisions.
** Except for rotation and torque limitations.
*** Except for torque limitations.
†
With alternator pulley diameter of 3.10 in.
♦
With alternator pulley diameter of 2.70 in.
For any possible additional optional starters and alternators, refer to the latest revision of Lycoming
Service Instruction No. SI-1154.
Appendix A
Page 54
Accessory Drives for IO-390-D1A6 & D3A6 Engines
Direction
of
Rotation
Counter-
SAE
clockwise
SAE
Clockwise
SAE
Clockwise
Counter-
clockwise
SAE
Clockwise
Clockwise
Accessory Drives for IO-390-D1B6 & -D3B6 Engines
Direction of
Rotation
Counter-
SAE
clockwise
SAE
Clockwise
SAE
Clockwise
Counter-
clockwise
Clockwise
SAE
Clockwise
Clockwise
IO-390-D Series Engine Installation and Operation Manual
Table A-3
Drive
Continuous
Ratio
in.-lb
16.556:1
---
3.20:1†
60
3.70:1♦
60
1.3:1
70
0.5:1
7
0.866:1
125
Table A-4
Drive
Continuous
Ratio
in.-lb
16.556:1
---
3.20:1†
60
3.70:1♦
60
1.3:1
70
1.3:1
100
0.5:1
7
0.895:1
125
© 2020 Avco Corporation. All Rights Reserved
Maximum Torque
Static
Nm
in.-lb
Nm
---
450
52
7
120
14
7
120
14
8
450
51
0.8
50
6
14
1200
136
Maximum Torque
Static
Nm
in.-lb
Nm
---
450
52
7
120
14
7
120
14
8
450
51
11
800
90
0.8
50
6
14
1200
136
Maximum
Overhang
Moment
in.-lb
Nm
150
17
175
20
175
20
25
2.9
5
0.6
40
4.5
Maximum
Overhang
Moment
in.-lb Nm
150
17
175
20
175
20
25
2.9
40
4.5
5
0.6
40
4.5
March 2020
Advertisement
Table of Contents
