Table of Contents
Advertisement
IO-390-D Series Engine Maintenance Manual
IO-390-D Series Engine Maintenance Manual
72-15- PROPELLER FLANGE BUSHING REPLACEMENT
1. Propeller Flange Bushing Removal
NOTICE: Designated bushings are installed in specified locations on the propeller in a
specific indexed configuration.
A. During removal of the bushings from the propeller flange (also known as the crankshaft
flange), attach a removable non-adhesive label/tag on the bushing that identifies the correct
bushing part number and location for reference on reassembly.
B. Although the propeller flange bushing configuration is shown in the applicable Illustrated
Parts Catalog, refer to the latest revision of Service Instruction No. 1098 for the latest part
number and propeller flange bushing location (since an update of Service Instruction No.
1098 is more likely to occur before the parts catalog update.)
C. Use the Propeller Flange Bushing Removal/Installation Tool ST-115 to remove each bushing
from the propeller flange.
2. Propeller Flange Bushing Installation
CAUTION
IF THE PROPELLER FLANGE BUSHING OF THE CORRECT PART
NUMBER IS NOT INSTALLED IN THE SPECIFIED LOCATION, THE
PROPELLER WILL NOT BE INDEXED CORRECTLY. EXCESSIVE
PROPELLER BLADE STRESSES CAN OCCUR.
A. As per the latest revisions of Service instruction No. SI-1098, identify the correct bushing part
numbers for your engine and the location of each bushing.
B. Use the Propeller Flange Bushing Removal/Installation Tool ST-115 to install the bushings of
the correct part number on the propeller flange on the crankshaft in the location designated for
your engine model specified in the latest revision of Service Instruction No. SI 1098.
© 2020 Avco Corporation. All Rights Reserved
March 2020
72-15
Page 127
Advertisement
Table of Contents
