Advance acoustic 56514925, Service Manual

Page: 200 / 260

Solution System 200 Service Manual – Advance 7765 / Nilfisk CR1500
Maintenance
Warning! Before performing any machine maintenance, make sure the key switch is off, the key
is removed from the machine and the parking brake is engaged.
Solution Tank
To clean the solution tank:
1. Lift the solution tank lid (cover).
2. Position the drain hose over a drain, then remove the drain plug assembly.
3. Flush all deposits from the tank.
4. Flush the liquid level switch and the inlet strainer.
5. Replace and tighten the drain plug assembly.
Note: The inlet strainer is threaded into the bottom of the tank and is designed to be removed and
installed with an oil filter wrench.
Detergent System (ESP/Recycle Option Only)
To clean and flush the detergent system:
1. Rinse the detergent tank with clean water.
2. Pour clean water into the detergent tank.
3. Set the
DETERGENT FLOW KNOB
to
MAX
and run the detergent and solution systems to purge the
detergent pump and lines.
Troubleshooting
Problem Cause Correction
No or inadequate
solution flow to the
scrub brushes.
Low solution level in solution
tank.
Check the solution level in the tank and fill as
necessary.
Inlet strainer dirty or
plugged.
Clean or replace the inlet strainer.
Plugged solution delivery
hose(s).
Check and clean the solution delivery hoses as
necessary.
Ball valve not operating
correctly.
Check the function of the ball valve and the linkage
adjustment and repair/replace as necessary.
Solution valve not operating
correctly (Solution Off in
Neutral option only).
• Check the solenoid wiring for problems
(ORN and WHT wires).
• Check the solenoid coil resistance. If not 13 ohms
±10%, replace.