Advance acoustic 56514925, Service Manual

Page: 163 / 260

Recovery System 163 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.
Daily Maintenance
• Check the gasket on the recovery tank cover for damage/wear.
• Check the vacuum hose for leaks or cracks.
Recovery Tank
To clean the recovery tank:
1. Lift the recovery tank lid (cover).
2. Tilt the recovery tank out away from the machine.
3. Flush all deposits from the tank.
4. Flush the float switch (standard solution systems) and the solution inlet filter (ESP/Recycle option only).
Note: The solution inlet filter is threaded into the bottom of the tank and is designed to be removed
and installed with an oil filter wrench.
Troubleshooting
Problem Cause Correction
Poor water pickup. Vacuum leak(s) due to:
• Leaky vacuum hose.
• Bad recovery tank lid
gasket.
• Drain plug not installed
correctly.
• Damaged tank.
• Check the squeegee vacuum hose and tighten/
replace as necessary.
• Check the recovery tank lid gasket and replace as
necessary.
• Make sure drain plug is installed correctly.
• Check the recovery tank for damage.
Restrictions due to built-up
debris in the squeegee tool
or vacuum hose.
• Check the squeegee tool and vacuum hose for
any accumulated dirt or debris and clean as
necessary.
• Check the vacuum system airflow pathway
wherever the airflow is forced to make a sharp turn
for any accumulated dirt or debris and clean as
necessary.
Squeegee blades worn or
out of adjustment.
• Check and replace the squeegee blades if
necessary.
• Readjust the squeegee as necessary.
(Refer to the Rear Squeegee section in the
Instructions For Use).