55D600 (795-45486)
6 of 29
5/12/22
MAINTENANCE
Be sure electrical cord is unplugged and cleaning solution and heater coil is cool before performing any
maintenance.
There may be cleaning fluid remaining in hoses even when unit has stopped operation. When detaching, drain liquid
into sink or other container to avoid spills.
It is recommended that two people lift the sink. Sink will have condensation on bottom; place on protected area and
make sure that cleaning fluid is not allowed to cover floor or painted surface that could be damaged or become a
safety hazard.
Daily
•
Remove rubber strainer and dispose of solid waste accumulation.
•
While
strainer is out, check fluid level. Fluid should be within 2” of bottom of sink. Due to evaporation and drag-out, fluid
may need to be topped off frequently.
Monthly or as needed
•
Inspect heating coil for accumulation of contaminants. The sink must be moved off the tank for access of the heating
coil.
•
Deposits and build up can cause premature failure of the heating coil.
•
Replace Undersink Filter 55B042
Tank Access
•
Unit must be disassembled carefully for access to the heater and liquid level float.
•
Start by detaching the hose clamps on filter or 3-way valve. If sink will be removed completely, also detach hose
clamps leading to the filter cartridge.
•
Remove sink by lifting straight up from base. Angle onto base for access below or remove completely.
•
Pump or dump out cleaning fluid if cleaning tank. Save fluid or dispose responsibly.
•
Check float switch for ease of movement. If not working properly, contact Walter.
•
Pull up the heater coil; clean with wire brush if deposits are found.
Semi-Annual Maintenance
•
Walter recommends that the entire system be inspected and cleaned semi-annually. After operating this unit, you
may find that your use may require more or less frequent maintenance.
FILTER CARTRIDGE REPLACEMENT
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Filter cartridge will require periodic replacement depending on the volume and types of soils involved. A significant
reduction in the flow through the flexible hose signals the need to replace the cartridge
•
Clean filter cartridge assembly:
1. Unscrew filter cartridge bowl.
2. Pour liquid from filter bowl into reservoir.
3. Remove filter cartridge and dispose of in proper manner.
4. Remove clear plastic packaging from filter cartridge (55B021)
5. Install new filter cartridge in the cartridge bowl.
6. Re-attach filter cartridge bowl to filter body.
TANK CLEANING
•
Follow instructions above for TANK ACCESS.
•
Empty tank completely, retaining fluid in drum if you determine that it can be reused. Dispose of according to local
regulations if needed.
•
Tip tank and clean out debris on bottom of tank. Rinse out if desired, making sure to treat rinse according to local
regulations.
•
Reassemble tank, control box, filter assembly and sink, and fill according to initial FILLING TANK instructions.
