Справочник Пользователя для Siemens L-850D/E F-Range Style 2 Inset Lights

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

Servicing in Maintenance Base

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 2002 Siemens Airfield Solutions, Incorporated

96A0266D

27

All rights reserved

Issued 2/02

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

Turn the cover (B1) upside down.

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

Put 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.

Remove the pressure release screw (E11).

Gently 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.

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

Check 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.

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.

Make 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.

E11
E12