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

23

All rights reserved

Issued 2/02

To replace a prism, proceed as follows (for the tools to use, refer to page 43
“Screws Overview”):

Remove the prism clamp plate (B6) secured in the cover.

Remove the prism keeper plate (B5) and the flat gasket (B4).

Push the prism (B3) with the sleeve gasket (B2) towards the inside of the cover.

Clean and degrease the prism chamber with any effective solvent.

 Never use any abrasive substance.

Apply a thin layer of lubricant MOLYKOTE BG87 INERTA (Siemens Airfield Solutions PN
7850.05.050) in the prism chamber using a small brush.

Bring a new sleeve gasket (B3) over the new prism.

Push the prism/gasket assembly home in the prism chamber from the inside and clean the
inner surface of the prism.

Mount a new flat gasket (B4) under the prism-keeper plate (B5).

Apply on both B8 screws a drop of “loctite” as indicated page 43, introduce them and turn
them by a few turns only.

Fit the prism clamp plate (B6) in the appropriate recess in the cover.

Secure it to the cover by means of the cross recessed pan head screws (B7).

Torque down the 4 B7 and B8 screws.

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.

The illustration below clarifies the procedure: