Solenoid Valve Disassembly/Assembly (For Adfinity™ 20D, X20D, X20C, X24D); Troubleshooting - Advance acoustic Adfinity 17ST Service Manual

ENGLISH SERVICE MANUAL
SOLUTION/CLEAN WATER SUPPLY SYSTEM
SOLENOID VALVE DISASSEMBLY/ASSEMBLY (For Adfinity™ 20D, X20D, X20C, X24D)
Disassembly
1. (For machines with brushes/pad-holders) Remove the brushes/pad-holders.
2. Lower the deck by pressing the pedal (11).
3. (For Adfinity™ 20D) Loosen the clamp (A) and disconnect the hoses (B) from the filter assembly (C).
4. Disconnect the union (D) from the solenoid valve (E) and recover the gasket.
5. Remove the screw (F), disconnect the connector (G) and recover the gasket.
6. Remove the nuts (H).
7. • (For Adfinity™ 20D) Remove the solenoid valve (E) with the hoses (B). If necessary, separate the hoses (B) from the
solenoid valve.
• (For Adfinity™ X20D, X20C, X24D) Move the solenoid valve (E) and disconnect it from the union (I).
Assembly
8. Assemble the components in the reverse order of disassembly.).
B A

TROUBLESHOOTING

Small amount of solution or no solution reaches the brush
Possible causes:
1. The solution/clean water filter is clogged/dirty (clean).
2. The solution/clean water tap is stuck closed (replace).
3. The solenoid valve is broken or there is an open in the electrical connection (replace the solenoid valve/repair the electrical
connection).
4. There is debris in the solution tank clogging the output hole (clean the tank).
5. There are debris in the solution/clean water hoses clogging the flow (clean the hoses).
The solution/clean water reaches the brush also when the machine is off
Possible causes:
1. There is dirt or calcium deposit on the solenoid valve gasket (clean).
2. The solenoid valve is broken (replace).
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Adfinity™ 17ST / 20ST / X20R / 20D / X20D / X20C / X24D
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