Boomprime One-Way Valve; Drain Valve Seal Replacement - Hardi MEGA VPZ NK Original Instruction Book

BoomPrime One-Way Valve

If the one-way valves for the BoomPrime system are clogged, they must
be cleaned.
1. Disassemble the two parts.
2. Clean the parts as needed. Check the state of the black O-ring.
3. Assemble the parts again and tighten with a torque of 1 Nm.
ATTENTION! If any part is worn or damaged, it should be replaced.

Drain Valve Seal Replacement

If the main tank drain valve leaks, the seal and seat can be changed in
the following way.
€
DANGER! Do not enter the inside of the tank - the parts can be
changed from the outside of the tank!
±
WARNING! Use eye / face protection mask, when dismantling the
tank drain valve!
1. Make sure that the tank is empty and clean.
2. The valve must be closed and the string must be loose.
3. Pull out the clip (A) and pull down the connecting piece (B). The
entire valve assembly can now be pulled out.
4. Check cord and valve flap assembly (C) for wear, replace seal (D)
and reassemble.
5. Reassemble the valve using a new valve seat (E). Lubricate O-rings (F) before assembly.
6. Fit clip (A) again.
ATTENTION! Check the valve function using clean water, before filling chemicals into the tank.
6 - Maintenance
135