MT-Propeller MTV-28-2 Series, Operation- And Installation And Maintenance Manual

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Page 17 Initial Revision 2020-12-10
ATA 61-07-19
5. INSTALLATION AND OPERATION INSTRUCTION
5.1. General
The MTV-28-2-AZ-R(H) is designed only suitable for an engine flange with 18x 9/16 ” -18 UNF
on a Ø230 mm PCD interface. The code for the flange type and size can be seen from the model
designation (see chapter 2).
5.2. Clean propeller and engine flange with solvent or gasoline. Both surfaces must be dry and clean before
installation. Remove all surface defects.
WARNING:
DO NOT INSTALL AN ADDITIONAL O-RING ON ENGINE FLANGE.
5.3. Grease on blade surface
The first run-up of a new or overhauled propeller may leave grease on the blades and inner surface of
the spinner dome.
This is normal and does not imply a continuing grease leakage.
Remove any grease on the blades or inner surface of the spinner dome by using a mild solvent.
Minor grease leak which can be seen on one or all
blade root(s) and spinner should be monitored if the
situation gets worse.
If the grease leak does not spray more than 180 mm (7 in) on the blade surface measured from the
blade root outside the blade ferrule in 5 hours of operation, it is defined as minor and should be only
monitored.
Continued grease leakage after 20 hours of operation from first leakage requires repair at an authorized
service repair facility within 5 operating hours
In case of doubt contact manufacturer.