82009-0133-C SN4500 CMM
Sandel Avionics Proprietary
Page 3 of 6
Use or disclosure of data on this page is subject to the proprietary notice on page 1 of this document.
1. APPLICABLITY
This document is applicable to maintenance for continued airworthiness of Sandel SN4500
Primary Navigation display:
Unit part number:
SN4500-xxx, Software revision 1.00 or later
2. UPLOADING SYSTEM SOFTWARE AND DATABASES
System software is released via a Service Information Letter (SIL) or via a Service Bulletin
(SB) posted on the Sandel website. The SIL or SB contains links to the software and the
related software installation files necessary to load the software. Database updates are
available for purchase via the Sandel website. The database information site also contains
up-to-date links to database download instructions.
The SIL’s, SB’s and Database update information can be found at:
www.sandel.com
under
"Support".
3. OTHER MAINTENANCE
There is no additional maintenance required on the SN4500 Primary Navigation Display.
4. FIELD REPAIR
Window replacement is the only authorized in-field repair allowed on the SN4500 per the
following procedure. Replacement display windows, Sandel part number 61152 may be
ordered from Sandel.
Tools required
Small flat blade screwdriver
#1 Phillips head screwdriver
Important!
Read through entire procedure first to familiarize yourself with the part terminology
and assembly sequence. Perform replacement in a clean environment.
Step 1. Remove encoder knobs:
1. Carefully pry heading and course knob caps from encoder knobs using a small, flat blade
screw driver or similar.
2. Loosen encoder knob collets using a flat blade screw driver and remove encoder knobs
from encoder shafts.
