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![]() TM 9-2320-363-20-2 
M915A2 and M916A1 
DDEC III ENGINE 
5. 
INSTALL TACHOMETER DRIVE ASSEMBLY (7) ON TACHOMETER DRIVE COVER (2). 
TIGHTEN NUT ON TACHOMETER DRIVE ASSEMBLY (7) TO 9-11 LB-FT (12-15 N.m). 
6. 
INSTALL SENSOR (8) ON TACHOMETER DRIVE ASSEMBLY (7). 
NOTE 
Step 7 does not apply to DDEC III Engine. 
7. 
CONNECT TACHOMETER DRIVE CABLE (9) TO SENSOR (7). 
8. 
CONNECT TACHOMETER SENSOR ELECTRICAL CONNECTOR (10) TO WIRING HARNESS 
(11). 
NOTE 
Follow-on Maintenance: 
Lubricate tachometer drive assembly (Unit PMCS, TM 9-2320-363-20-1). 
Connect batteries (page 2-29). 
Change 4 
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