Unger HCD25 - Manual (Page 9)

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Quick Start Guide
9. It is advisable to apply a little silicone grease
on the new seals. Put the piston body back
into the body (31). If you experience any
difficulty, press gently on the valvebridge (13),
to enable air exit.
10. Put the cover (9) back on top of the piston
body (2) and screw the cover to the body
(31) by clockwise turning it, using only your
hands. Make sure that cover “O” ring (43) is
stable inside its carrier.
Each kit has a small jar of silicon grease. It is
highly recommended to apply a thin layer of
silicon grease on all the Mechanism moving
parts.
Note: Unger takes no responsability for damages caused by wrong handling at this
maintenance.
For cleaning with pure water basically no soap or detergent additive is required.
In special cases, like for example for old windows or surfaces that have not been
cleaned for a longer period, soap can certainly provide a strongly supportive effect.
Rinse the surface anyway after cleaning with pure water to obtain the sustainable
cleaning effect.
ENGLISH