Hardi COMMANDER 4500, Instruction Book

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6 - Maintenance
122
Unscrew the connector (A) on the steel pipe.
Pull the nozzle pipe (B) away from the T-piece (C).
A lock ring (D) and an O-ring (E) is located at the end of the pipe.
The O-ring can now be removed from the pipe for maintenance.
How To Reassemble Pipe Fittings
To reassemble the fittings, place the connector, lock ring and O-ring on
the pipe in that order. Tighten the connector onto the T-piece.
Gasket Types
Usually an O-ring is used, but there is also a different type of gasket in
use (F).
How To Remove Lock Ring
If the lock ring needs to be replaced, this can be done by mounting a
connector (A) in reverse direction.
Push the connector over the lock ring.
Place the connector right behind the lock ring and pull to remove the
lock ring from the pipe.