Hardi ALPHA EVO II EcoDrive Instruction Book page 170

6 - Maintenance
Locking piece (B) and upper part separated (C).
Inside the lower part (D), the O-ring (E) is located, and it can now be
removed for maintenance.
Note that the O-ring, when seated, is supposed to be a little out of shape
to fit tightly around the hole in the nozzle pipe.
How To Reassemble Nozzle Holder
1. Place the O-ring inside the lower part.
2. Place the lower part on the nozzle pipe. The O-ring fits around the
hole in the nozzle pipe, where the spray liquid exits to the nozzle
holder.
3. Place the upper part on the opposite side of the nozzle pipe.
4. Click the parts together by pressing relatively hard.
5. Insert the locking piece in the upper part to secure it on the spray
boom.
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