Siemens L-850D/E F-Range Style 2 Inset Lights manual How to close and test the light fixture

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L-850D/E F-Range Style 2 Inset Lights

Servicing in Maintenance Base

How to close and test the light fixture

Procedure	To close an optical unit, proceed as follows (for the tools to use, refer to page 43
	“Screws Overview”):

	Step	Action

1Turn the cover (B1) upside down.

2Make sure that the contact surfaces with the O-ring are clean.

3Put a new O-ring gasket (B9) greased with high quality neutral silicone grease (Siemens Airfield Solutions PN 7850.42.210) over the cover in the appropriate groove.

4Remove the pressure release screw (E11).

E11

E12

5Gently put the inner cover (E5) on the cover (B1), taking into account the keying pin between both parts. Make sure the lampholders and lamps are correctly positioned and that the wires of the lamps do not get pinched between cover and inner cover.

6Press the inner cover on the cover and secure with the screws (E10).

7Check electrical insulation from each two-pole plug to frame by means of a 500 V insulation tester.

Apply an AC or DC voltage not exceeding 15 V across each two-pole plug and observe normal operation of corresponding lamp.

8	Check waterproofness of the fitting by applying an overpressure of	1.4
	Atm (14kP) via the pressure release hole. Whilst pressure is applied,
	immerse the light fixture for one minute in water and look carefully for any
	air bubbles emanating from the light fixture.

9Make sure the O-ring seal (E12) is in good condition and secure the pressure release screw (E11).

Refer to the table “Screws Overview” on page 43 for the tool to use, the torque to apply, and the eventual use of “Loctite” sealing compound.

 2002 Siemens Airfield Solutions, Incorporated	96A0266D	27
All rights reserved	Issued 2/02

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Contents Siemens Airfield Solutions 850D/E F-Range Style Inset Lights Revision Description Editor Checked Date Record of ChangesSafety precautions Safety InstructionsWarranty Parts Identification Comments and Proposals Information About this ManualTable of Contents General Information and Requirements Overview General information Equipment data Equipment required for installation and maintenance Label Toe-in InstallationInstallation Overview Organisation Applicable documents General recommendationsTool case Equipment required for installationAttack driver Additional tools and equipmentInstallation on FAA Deep Bases Overview UNC Step Action Installation methodMounting and connection How to mount the light assemblyMaintenance Overview Preventive maintenance Workshop maintenance and preventive maintenanceField maintenance Preventive Maintenance Tasks Interval Check ActionLifting tools ProcedurePreliminary Servicing in the Maintenance Base OverviewHow to open the light assembly Illustration Illustration below clarifies the procedure How to replace a lampFilm disc cut-out Procedure How to replace a prism How to replace the optical assembly How to replace the cable set assembly Illustration How to close and test the light fixture Problem Possible cause Solution TroubleshootingContents This chapter contains the following topics Topic Introduction Light Assembly Part NumbersAssemblies and Exploded View Overview SeeRemarks AssembliesRemark Film disc cutout optional Ordering code850E Ordering Code 850DList of tables Fixtures Solutions code 850E850D Cate000 010 020 030 040 050 060 070 080 090 100 Description 1411.40.xxx000 010 020 030 040 050 060 070 Description 1411.41.xxxIllustrations Part number 270 280 290 300 310 320 330 200 210 220 230 240 250 260Description 270 280 290 300 310 320 330 Toe-in Installation 100 110 120 130 140 150 160 170 180 Solutions partIllustration below shows the 12 F-Range inner covers Screw Tool Loctite Torque Screws OverviewRange Exploded view12 L-850D/E