Maintenance Inspections
Teledyne Continental Motors, Inc.
TM
7-4
IOF-550 Permold Series Engine Maintenance Manual
Change 1
12 October 2007
Table 7-1.
Engine Inspection and Maintenance Schedule
NOTE: An operational check must be performed prior to and after
engine inspection, maintenance or overhaul activities. Refer to the
“Operational Performance Checks” in Chapter 6 of this manual.
If operating hours and a calendar period are specified, perform the
inspection coincident with the earliest occurrence.
Interval
Cumulative
Operating
Hours
Calenda
r
Task Reference
5
---
Belt Tension Check
7-3.1 “Drive Belt Tension
Inspection”
25 6
months
Initial operation inspection after placing a new, rebuilt, or
overhauled engine in service, including individual cylinder
replacement. Repeat this inspection after each 25 hours
of operation until oil consumption stabilizes
7-3.2 "25-Hour Initial
Operation Inspection”
50
4 months 50-hour engine inspection
7-3.3 “50-Hour Engine
Inspection”
50
4 months Oil and filter change
“Engine Oil Servicing” in
Chapter 9, “Maintenance
and Adjustments”
100
Annually 100-hour engine inspection
7-3.4 “100-Hour (Annual)
Engine Inspection”
--- Annually
Replace
FADEC backup battery
7-3.13 “FADEC Dedicated
Backup Battery
Inspection”
500
---
500-hour engine inspection
7-3.5 “500-Hour Engine
Inspection”
1700
12 years IOF-550-B and -C Time Between Overhaul (TBO)
TCM Overhaul Manual
(OH-24) Instructions
2400
12 years IOF-550-N, P, and R Time Between Overhaul (TBO)
TCM Overhaul Manual
(OH-24) Instructions
7-3.1. Drive Belt Tension Inspection
Check the tension of new drive belts after five hours of operation. Adjust, as required, to
maintain 50 to 70 pounds of tension. Refer to “Drive Belt Tension Adjustment” in
Chapter 9, “Maintenance and Adjustments.”
7-3.2. 25-Hour Initial Operation Inspection
Frequency
•
Twenty-five (25) hours or six months (whichever occurs first) after:
•
A new, rebuilt or overhauled engine is placed in service.
•
One or more new engine cylinders and/or piston rings have been replaced.
•
After every 25 hours of operation until oil consumption has stabilized.
