Section
VIII
Handling,
SeN
and
Maint
PROPELLERS
BEECH
CRAFT
Duchess
76
Propeller Owners Manual and Log Book, and Overhaul In-
structions are furnished with the airplane. Maintenance in-
~tructions
are
provided in the Duchess 76 Maintenance
Manual.
WARNING
When servicing a propeller, always make certain
the MAGNETO/START switches are
OFF
and
the engines have cooled completely. STAND IN
THE CLEAR WHEN MOVING A PROPELLER.
THERE
IS ALWAYS SOME DANGER
OF
A
CYLINDER FIRING WHEN A PROPELLER IS
MOVED.
--'"
PROPELLER DOME
AIR
PRESSURE SETTING
1.
Remove
the
propeller
spinner
dome cap retaining
screws and remove the propeller spinner
dome
cap.
2. Service the propeller air dome cylinder with dry air
or
nitrogen to a correct pressure as follows:
70° F to 100° F
-41
± 1 psi
40° F
to
70° F - 38 ± 1 psi
0° F
to
40° F - 36 +- 1 psi
- 30° F
to
0° F - 33 +- 1 psi .
3. Position the propeller spinner dome cap and secure with
the retaining screws.
8-22
January
1978
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