Disassembly - mcmurdo C1 S-VDR Service Manual

3.5 Disassembly

Open the FFC
1. Use a Posi driv scewdriver to remove all 10 main body seal bolts.
2. The FFC should now open when the top cone, DSM and bottom cones are
pulled gently apart.
Note: If the cones will not come apart, there is probably a partial vacuum
inside the EPIRB. Do not lever the cones apart as this will cause damage. Use
an 11mm A/F socket to loosen the TEST switch boot. A slight hiss will be
heard as the vacuum releases. When it stops, re-tighten the TEST switch
boot. Pull the cones apart.
3. Gently lift the top cone up taking great care not to damage the Reed switch
PCB which extends into the DSM
C1 S-VDR service manual Issue 1 Page 15