
18
| STERO SD3 DOOR-TYPE DISHWASHER
CLEANING
(continued)
DO’S AND DON’TS FOR YOUR NEW STERO DISHWASHER
DO
assure proper water hardness (3 grains or less per gallon is recommended).
DO
pre-scrap dishes thoroughly.
DO
use only detergents recommended by your chemical professional.
DO
at the end of the day, thoroughly cleanse the machine, rinse and dry (leave door open).
DO
closely follow your chemical professional’s prescribed deliming schedule.
DO
use only products formulated to be safe on stainless steel.
DO NOT
use detergents formulated for residential dishwashers.
DO NOT
allow food soil to accumulate on the tank bottom.
DO NOT
exceed chemical manufacturer’s recommended concentrations for detergent, sanitizer,
rinse aid or lime scale remover.
DO NOT
use steel wool to clean ware or warewasher surfaces.
DO NOT
allow foreign objects to enter the unit, especially metallic contaminants such as paper clips,
retainers, etc.
NOTE:
Failure to follow use, care and maintenance instructions may void your Stero warewasher
warranty.
MAINTENANCE
DELIME INSTRUCTIONS
Check with your chemical provider for deliming procedures.
Disconnect the electrical power to the machine (both dishwasher and booster if
applicable) and follow lockout / tagout procedures. Be sure all circuits are disconnected.
WASH ARMS
Upper and lower wash and rinse arms (Figures 21 & 22) should turn freely and continue turning for a few
seconds after being whirled by hand. To check, rotate arms and remove any obstructions causing improper
operation.
If either the strainer pan or the strainer bucket is not properly in place, obstructions (such as food particles or
bones) may clog the wash arm nozzles. The wash arms are easily removed for cleaning.
To remove the lower wash arm, unscrew the hand knob and lift the rinse arm off (Figure 21). The wash arm can
be lifted off once the rinse arm is removed.
The upper wash and rinse arms are removed by unscrewing the hand knob (Figure 22) and lowering both arms
together. Be careful not to drop these arms.