Piper Navajo PA-31 Service Manual page 767

PIPER NAVAJO SERVICE MANUAL
11-129. INSTALLATION
OF RED STROBE POWER SUPPLY. (Serial Nos. 31-1 to
31-961.)
a. Position power supply on longitudinal beam with sockets and wires facing the right
side of the aircraft and secure with the three screws previously removed.
b. Insert other screw through two ground wire terminals and secure by inserting screw
into right-hand corner of the strobe power supply mounting flange and tightening screw.
c. Connect white wire from power supply to wire from circuit breaker at quick
disconnect connector.
d. Insert the two plugs into their proper sockets on the strobe power supply.
e. Install right floor panel at sta. 203 and secure with the appropriate screws.
f. Install carpet over the right floor panel at sta. 203.
g. Install passenger seats on the right side of the aircraft.
11-130. REMOVAL OF WING TIP STROBE POWER SUPPLY. (Serial Nos. 31-1 to 31-
961.) The wing tip strobe power supply is mounted on the bottom of the forward radio shelf on
the right side of the aircraft.
a. Remove the access plate on the right side of the aircraft between sta. 59 and sta. 81.
b. The power supply is mounted on the radio shelf just above the heater. Remove the
two electrical plugs from the power supply.
NOTE
Mark plugs and sockets to facilitate reinstallation.
c. Disconnect white wire from wire to circuit breaker at the quick disconnect
connector.
d. Remove screw securing the three ground wires.
e. Remove the three other screws securing power supply to bottom of radio shelf.
Remove power supply from aircraft.
11-131. INSTALLATION OF WING TIP STROBE POWER SUPPLY. (Serial Nos. 31-1 to
31-961.)
a. Position strobe power supply on bottom of radio shelf and secure with three screws
previously removed.
b. Insert other screw through the three ground wire terminals and install and secure to
strobe power supply.
c. Connect white wire to wire from circuit breaker at quick disconnect connector.
d. Install two plugs into their correct sockets on the power supply.
e. Install and secure access plate between sta. 59 and sta. 81.
11-132. REMOVAL OF WING TIP STROBE POWER SUPPLY. (Serial Nos. 31-962 & up.)
For each wing tip strobe light, there is one strobe power supply mounted outboard on the
outboard wing rib (L or R).
a. Remove screws from wing tip (L or R), and move just enough to gain access inside
the wing tip.
Reissued: 10/12/79
ELECTRICAL SYSTEM
4D17