Olympus FL50 - Manual (Page 7)

When to Maintain the Gasket Seal:
Remove the gasket periodically for inspection. It is not necessary to remove, clean and re-install the gasket
after every dive provided the gasket did not become contaminated. The flash housing may be required to be
opened between dives, to recharge the batteries. Before opening, make sure the outside of the housing is
thoroughly toweled dry. After removing the lid and servicing the flash, replace the lid straight away rather
than leaving it lying around. Before replacing the lid, make sure that no contamination such as dust, hair,
salt, etc. has fallen onto the gasket or its recess.
Procedure for Gasket Maintenance:
1. Place the lid on a firm non-slip level surface.
2. The gasket can be extracted using an gasket extractor tool (make sure the tool
has no sharp edges). Alternatively use the flat surface of your thumbs to gently
stretch the gasket on two faces [Figure 2] thus making a small loop protruding a
few mm. The loop can then be grasped between finger and thumb, to pull the
gasket over the lip.
F IGURE 2: P ROVIDING A L OOP IN THE GASKET
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