11-84. REMOVAL OF CIRCUIT BREAKERS.
a. Remove knurled nut from circuit breaker face plate on front of instrument panel.
b. From behind instrument panel remove circuit protector from instrument panel.
c. Disconnect electrical connections fastened with screws to the circuit breaker.
—NOTE—
Make note of the placement of the electrical leads to facilitate
reinstallation.
11-85. INSTALLATION OF CIRCUIT BREAKERS.
a. Connect the electrical leads to their proper screw and secure.
b. Insert circuit protector into its proper hole on the instrument panel.
c. Fasten and tighten knurled nut to circuit breaker face plate, front of instrument panel.
11-86. SWITCHING.
11-87. REMOVAL OF IGNITION SWITCH.
a. Insure the ignition switch is in the OFF position.
b. Gain access to and disconnect the power lead (+) from the battery.
c. Remove the ignition switch, retaining nut from the switch on the forward side of the instrument panel and
withdraw the switch from the panel.
d. Mark the wires and note their position on the switch, then disconnect the wires.
11 88. INSTALLATION OF IGNITION SWITCH (Refer to Figure 1l-27.).
a. Attach wires to switch as shown in Figure 1l-27.
b. Check for proper operation of the ignition switch as follows:
1. Remove the P-lead from the right magneto.
2. Attach the P-lead of the right magneto to an ohmmeter and to the airframe ground.
3. With the switch in the "OFF", "L" or "START" positions, the ohmmeter should indicate a closed circuit.
4. With the switch in the "R" or "BOTH " positions the ohmmeter should indicate an open circuit.
c. Reconnect the P-lead to the magneto.
d. Position the ignition switch in the instrument panel and secure with retaining nut.
e. Connect the power lead (+) to the battery and reinstall any access covers previously removed.
Figure 11-27 Ignition Switch Wire Positions
C191
2JA
S
K1B
BAT
L
LR
GND
R
J1A
K1A
PIPER AIRCRAFT
PA-28-161 CADET
AIRPLANE MAINTENANCE MANUAL
Issued: FEBRUARY. 28, 1989
ELECTRICAL SYSTEM
2E4
