Manitowoc I0320 Technician's Handbook page 34

Step 6 Disassemble distribution tube by loosening
the two (2) middle thumbscrews and dividing. Mix a
solution of cleaner and lukewarm water. Depending
upon the amount of mineral buildup, a larger quantity
of solution may be required. Use the ratio in the table
below to mix enough solution to thoroughly clean all
parts.
Solution
Water Mixed With
Type
Cleaner 4 L (1 gal) 500 ml (16 oz)
cleaner
Step 7 Use 1/2 of the cleaner/water mixture to clean
all components. The cleaner solution will foam when it
contacts lime scale and mineral deposits; once the
foaming stops use a soft-bristle nylon brush, sponge
or cloth (NOT a wire brush) to carefully clean the parts.
Soak parts for 5 minutes (15 - 20 minutes for heavily
scaled parts). Rinse all components with clean water.
32 Part Number STH038 5/12