Piper PA-28-161 Maintenance Manual

PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 4
Nov 30/06
4J24
71-60-00
(b) Procedure
1 Turn ON the power supply and verify supply voltage with the multimeter. Voltage
should be between 24-30 volts for 28VDC power supply.
2 Turn the instrument power switch to the ON position. Verify that the RED warning
light illuminates and no radiated light is emitted from the probe.
3 Turn the sensitivity adjustment knob to full clockwise (CW) position. Verify that the
radiated light emitted from the probe activates and gets brighter, and the RED
warning light extinguishes.
4 Turn the sensitivity adjustment knob back to full counter-clockwise (CCW) position.
Verify that the radiated light emitted from the probe gets dimmer and then
deactivates, and the RED warning light illuminates.
5 Turn the instrument power switch to the OFF position.
(2) System Circuit Test
Performed with a known good probe.
(a) Setup per Instrument Test, Setup, above.
(b) Place the probe in an area without direct light.
(c) Turn the instrument power switch to the ON position.
(d) Turn the sensitivity adjustment knob clockwise until the RED warning light extinguishes.
(e) Turn the instrument power switch to the OFF position and then back ON.
(f) Verify that the RED warning light illuminates and then turns off indicating that the system
is functioning properly.
(g) Turn the instrument power switch to the OFF position.
(3) Probe Insulation Resistance Test
Measure insulation resistance from the probe housing to each of the probe’s three wires (RED,
WHT, and BLK). Resistance should be greater than 2 megohms.
(4) Probe Sensitivity Test
Performed with a known good instrument.
(a) Setup
1 Turn the power supply power switch to the OFF position.
2 Set the instrument power switch to the OFF position and turn the sensitivity
adjustment knob to full counter-clockwise (CCW) position.
3 Attach the instrument's power wires to the power supply (instrument's RED power
supply wire to the [+] terminal on the power supply, and BLK wire to the [-] terminal).
4
Connect the instrument's three probe wires to the probe (RED to RED, WHT to WHT,
and BLK to BLK).

Piper PA-28-161 Specifications

General

Manufacturer	Piper Aircraft
Model	PA-28-161 Warrior II
Engine	Lycoming O-320-D3G
Horsepower	160 hp
Seating Capacity	4
Wingspan	35 ft (10.7 m)
Length	24 ft 0 in
Maximum Speed	127 knots
Cruise Speed	122 knots
Maximum Takeoff Weight	2, 325 lb (1, 055 kg)
Fuel Capacity	48 US gallons (182 L)