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January, 2017
CLEANING STEPS: WASH DOWN MODEL SCALES
1. USE OF CLEANING SOLUTIONS: It is important to be aware of the effects certain cleaning
products have on stainless steel and aluminum components.
Cleaners with excessive chlorine can damage the outer layer of stainless steel and
corrode it thus allowing it to rust.
2. RECOMENDATIONS: Do not pressure wash the machine. Washdown model scales are
designed to withstand contact with water and liquids but the seals protecting the interior of the
machine may be compromised by high pressure water jets.
3. START: Begin by turning off the machine. Turn the Main Power Switch on the Control Box to the
off position but leave the machine and the Control Box plugged in. Ensure that all components
are cool to the touch before continuing.
The machine must remain plugged in to supply power to its heater during cleaning.
4. TURN HEATER ON: Turn on the machine’s heater, this will regulate temperature and circulate
airflow to reduce the buildup of condensation.
In order to minimize condensation and the buildup of atmospheric contaminants, it is
strongly recommended that a compressed air dryer also be used to supply dry air to the
interior of the machine. The colder the environment, the more this is needed.
5. CONNECT REGULATOR: Connect a ¼ inch airline to the ¼ air inlet, located on the right side of
the Low Pressure Regulator.
6. TURN ON AIR SUPPLY: Once connected, turn on the machine’s air supply and set the Low
Pressure Regulator to 5 psi. This will provide a positive pressure within the machine in order to
reduce the chance of water infiltration should a seal be compromised. Ensure seals are not
leaking air.
If air bubbles appear during washing it is likely an indication of a failed seal. Seals should
be inspected immediately and repaired if necessary. Pay particular attention to the seals
on the central tower. This area should remain dry at all times to prevent any moisture
from penetrating the machine and rusting its interior.
7. REMOVE AND CLEAN FOOD CONTACT COMPONENTS: Remove food contact
components including pans, buckets, chutes, funnel, center cone and the hopper so they may be
cleaned individually and away from the body of the machine.
Do not apply excessive force on components attached to the load cell as this may cause
damage to the load cell.
8. BODY OF THE MACHINE: Rinse all surfaces with gentle flowing water, or wipe down with a
clean wet cloth.
Do not use a power hose, nozzle or pressure washer to wash the machine.
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