8.930-369.0 • 2848 • Rev. 4/13a
OPERATOR’S MANUAL
PARTS WASHER
18
SECTION 3: OPERATION
NOTE: If your machine is equipped with the optional
automatic water fill feature, the sump will automatically
fill when the water level drops below the lower low water
proximity switch.
Filtration and Sump Sweep Systems
(Optional)
The optional filtration and sump sweep systems reduce
or eliminate the need to manually clean out the sump.
The filtration system continuously filters solid particles
from the wash solution, and you can use the sump
sweep system to periodically remove waste build up
from the bottom of the sump chamber.
Filtration System (Optional)
The filtration system uses a filter canister with a nylon
or polyester felt filter bag to continuously filter solid par-
ticles from the wash solution. The filter system includes
pressure gauges which allow you to monitor the condi-
tion and performance of the filter bag inside the canister.
Under typical operating conditions, the inlet and outlet
pressure gauges read approximately 45 psi. As the filter
bag becomes soiled, the outlet pressure decreases. If
the difference between the inlet and outlet pressure is
15 psi or greater, stop the machine and clean or replace
the filter bag (See Cleaning the Filters).
WARNING: Operating the machine with a clogged
filter system could damage the filter bag. STOP THE
MACHINE IMMEDIATELY if the difference between
the inlet and outlet pressure is 15 psi or greater.
Sump Sweep System (Optional)
The sump sweep system uses a three-way valve to
divert solution from the wash chamber to a spray bar on
bottom of the sump chamber. The spray bar generates
a high-pressure spray pattern that agitates the sump
solution and suspends solid particles. The solution then
flows through the filtration system which removes the
solid particles (See Cleaning out the Sump).
DETERGENTS AND ADDITIVES
Detergents
Manufacturer’s detergents are the only detergents
approved for use with our Automatic Parts washers.
They are specially formulated with rust inhibitors and
anti-foaming agents to
optimize performance and minimize maintenance.
The use of any other detergent during the warranty
period will void the warranty.
To monitor the relative concentration of the detergent
in the wash solution, periodically examine the wash
solution in the sump chamber for the following
indicators:
• Rust inside the machine: not enough
detergent
• Excessive foaming: not enough detergent
• Thick, white residue on parts after
washing: too much detergent
To maintain proper detergent concentration under
typical operating conditions, add detergent each
month after cleaning the sump chamber. Follow
recommended detergent quantities. Use pH kit to
determine the proper amount of detergent to use. If
you need help interpreting test results, contact cus-
tomer service.
Rust Inhibitor Additive
Factory detergents protect the entire inside of
your machine against the degenerative effects of
water evaporation. A rust inhibitor additive actually
Float Rod
Float
Proximity
Switches
Inlet
Pressure
Gauge
Outlet
Pressure
Gauge
To Main
Tank
Filter
Sump
Sweep
Position
Wash
Position
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