Great Planes PBY Catalina ARF - GPMA1154 - Manual (Page 8)

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7. Remove the protective covering from the three wires
that exit the hole in the top of the wing and tape them to the
wing to prevent them from falling into the wing.
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8. Test fi t the motor mount assembly to the wing. When
satisfi ed with the fi t, glue the motor mount assembly to
the wing.
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9. From the 4 x 100mm (4") heat shrink tubing cut three
13mm (1/2") lengths. Slide one onto each of the three motor
wires. Plug the color coded motor wires into the extensions.
Slide the heat shrink over the connection, making sure the heat
shrink covers the brass connectors in a way that will not allow
any metal to metal contact. Then shrink the tubing. Secure the
wires to the wood motor mount with a small tie wrap.
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10. Carefully fi t the nacelle over the motor mount. It is a
tight fi t so move slowly and cautiously. It will fi t! When installing
the nacelle be sure the small hole for air exhaust is located to
the bottom of the nacelle. The nacelle can be secured to the
wing with a small amount of glue or a piece of clear tape.