Jan 10/90 33-00-00
PIPER AIRCRAFT
PA-42-720 (Advanced Trainer)
MAINTENANCE MANUAL
A. PassengerCompartment
1. OverheadReadingLights
(a)
Removalof Overhead Reading Lights
Eight overhead readinglightsare located above the passenger windows. (1.) Remove ground wire from light assembly.Remove cover from lamp. (2.) Remove bulb from socket.
(b)
Installation of Overhead Reading Lights
(1.) Insert new bulb into socket.
(2.) Replace ground wire and cover over lamp.
(3.) Light has a screw on lock ring. Insert light from back of panel and screw on lock ring.
EFFECTIVITY: 040-999" Jan 10/9033-20-00 Jan10/90
PIPER AIRCRAFT
PA-42-720(AdvancedTrainer)
MAINTENANCEMANUAL
A. Exterior
1. Landing and TaxiLights
(a) Removalof Landing andTaxi Lights (Figure501) (1.) Ensure circuitbreaker is off before doingany work on the landingor taxi lights. CAUTION: WHEN REMOVING ATTACHMENT PLATE, BE SURE NOT TO DROP THE LAMPS. (2.) To remove lamps from the mounting fixture,removescrews from front of lamp attachment plate. Removeattachmentplatefrommountingfixture. (3.) Disconnect electricalleads from lamp. NOTE: Indicate positionof eachelectrical lead to facilitate reinstallation.
(4.) To remove completeassemblyfrom gear strut, disconnect electricalleads from both lamps and release clampssecuring assembly to strut housing.
light assembly can be tiled to the desired angle.
Adjustment
Landing and Taxi Lights
Figure 501
(b) Adjustment of Landing and Taxi Lights
Two adjusting screws, found on the mounting pad sides at the top, are loosened so the entire light assembly can be tilted to the desired angle.
EFFECTIVITY:
040-999
33-40-00 Jan 10/90
PIPER AIRCRAFT
PA-42-720(Advanced Trainer)
MAINTENANCEMANUAL
A. Exterior (continued)
1. Landingand Taxi Lights (continued)
(c) Installationof Landing and Taxi Lights
(1.) Reconnectelectricalleads in proper place on lamps. (2.) Place lamp and lamps against mountingpad. Position attachmentplate and secure with appropriate screws.
NOTE: Tightenscrewsenough to allow lamps to fit snugly in mounting fixture.
(3.) Install landing light assembly strut housing with bottom of mounting fixture5.6 inches up from the bottom of strut housing (Figure 501). (4.) Align bracket longitudinally. Secure in place with clamps.
2. Wing Tip Strobe Lights
(a)
Removal of Wing Tip Strobe Lights
The lights are located on both wing tip tanks next to the position lights.
(1.) Remove screw securing lens retainer and remove lens.
(2.) Remove three screws mounting light assembly from the wing tank tip.
(3.) Pull out light assembly with strobe light and position lightstill attached.
(4.) Disconnect three pin connector to strobe light.
(5.) Cut plug off three wires and discard.
(6.) Pull strobe lamp out of light assembly. Discard with wires still attached.
(b)
InstallationWing Tip Strobe Lights
(1.) Position strobe light into place on light assembly. Insert three wires connected to it throughthe hole provided in light assembly. (2.) Insert three wires into three pin plug and secure. Wire plug according to 33-45-01, PA-42-
720 (Advanced Trainer) Wiring Diagram Manual. (3.) Reconnect three pin connector to harness from strobe power supply. (4.) Position light assemblyon wing tip tank. (5.) With appropriate screws,secure light assembly with strobe and position light attached. (6.) Replace lens and lens retainer. Secure with appropriate screw.
(c) Removalof Wing TipStrobe Power Supply
The wing tip strobe power supply (L or R) are located inside the outboard wing rib.
(1.) Remove access panel on bottom of wing inside wing station 239.00.
(2.) The power supply (L or R) is located inside the outboard wing rib. Disconnect two
electrical plugs. (3.) Remove screws mounting power supply to the wing. Remove power supply.
(d) Installationof Wing Tip StrobePowerSupply
(1.) Position power supply in place. Secure with appropriate screws.
(2.) Connecttwoelectricalplugs.
(3.) Install access panelon bottom of wing inside wing station 239.00.
EFFECTIVITY:
040-999
Jan10/9033-40-00
PIPERAIRCRAFT
PA-42-720(AdvancedTrainer)
MAINTENANCEMANUAL
A. Exterior (continued)
2. Wing Tip Strobe Lights (continued)
(e) Fault Isolation (Wing Tip Strobe Lights)
Thestrobe light assembly functionsas a condenser dischargesystem. A condenser in the powersupply is charged to approximately 450 volts dc and dischargedacrossthe xenon flash tubeat intervals of approximately is parallel the
50 flashes per minute. The condenser across
xenon flash tube, which is designed to hold off the 450 volts dc applied, until the flash tube is 中國航空網 www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：夏延飛機維護手冊 Cheyenne IIIA PA-42-720 AMM 2(72)
