Teledyne Continental Motors, Inc.
TM
Maintenance
Inspections
IOF-550 Permold Series Engine Maintenance Manual
7-45
1 April 2007
7-6.
Alternator Driv
Table
e Hub Slippage
Coupling Condition
Allowable Slippage
Less than 25 hours operation
180 in. lbs
More than 25 hours operation
140 in. lbs.
6.
ernator according to
” instructions in Chapter 10.
7-3.19. Ground Strap Continuity Test
the aircraft ground and each ECUs is
airframe with two ground wires.
strap continuity test is performed during 100-hour operation or annual
n.
Procedure
1.
Insp
rty or corroded, refer to the section
“Cleaning a Ground Strap Connection Point” in Chapter 9,
2.
f a ground strap from the engine or ECU. Measure the resistance
oor
continuity or if a strap appears frayed, nicked, cut, or damaged, replace the strap
3.
ccording to Appendix B.
Disconnect each remaining ground strap and repeat the previous resistance
measurement until all the ground straps pass the inspection.
Install the serviceable or replacement drive coupling on alt
“Alternator Drive Hub Installation
Purpose
Two ground leads connect the engine structure to
connected to the
Frequency
The ground
inspectio
ect the lead wire for fraying, nicks, cuts, or damage.
NOTE: If the ground strap is di
Maintenance and Adjustments.
Disconnect one end o
between the loose end of the ground strap and aircraft ground using a digital volt
ohm-meter (DVM).
RESULT: The resistance must be less than 0.5 ohms. If the inspection reveals p
according to instructions in Chapter 10, Non-Overhaul Repair and Replacement.
Install the serviceable ground strap and torque the fastener a