Maintenance; Sanitizing And Cleaning Procedure - Cornelius Series 200 Service Manual

IMPORTANT: THE FOLLOWING MAINTENANCE SHOULD BE PERFORMED AT LEAST EVERY SIX
MONTHS ON FLAKED ICE MACHINES.
1. Check power supply with machine running for proper voltage.
2. Check water level in the float tank reservoir. Water level should be maintained at the top of the
evaporator. Adjust if necessary. (See illustration and adjustment procedure)
3. Clean the air-cooled condenser coil with a stiff brush or vacuum cleaner (See procedure).
CAUTION: Condenser cooling fins are sharp, use care when cleaning.
4. Clean the ice storage bin and flush the bin drain at least once a month.
5. If a water conditioner is installed in the inlet water line, change, replace, or clean the filter, strainer
or cartridge as required.
6. If heavy mineral deposits on the auger and evaporator shell are encountered due to bad local water
conditions, follow sanitizing and cleaning procedure.
7. Loosen hold-down cam locks and remove gearmotor assembly.
8. Check thrust washer; replace if noticeably worn.
9. Lift out auger and examine for wear. The corkscrew auger guide bushing pressed into the drive
block should be checked for wear. Replace if loose or if worn flat with auger drive block. If the Helix
auger on the corkscrew auger round bar becomes flat on the inside more than 1/8 of an inch over a
length of two inches or more it should be replaced.
NOTE: HELIX AUGERS DO HAVE MACHINED FLAT RELIEF SURFACES. DON'T CONFUSE THEM
WITH WORN FLAT AREAS.
Check the insert in the bottom ring of the Helix auger and replace if excessively worn.
10. Check shell vertical strips for wear. Replace the shell if excessive wear is shown.
11. Check O-Ring, replace if worn or cut.
12. Re-assemble, steps 7 through 11.
CAUTION: In re-assembling the auger gearmotor, the hold down clamps must be tight and secure.
In re-installing the evaporator shell, be absolutely sure that the "o" ring is not pinched off as this
would cause a water leak around the base of the evaporator. Lubricate the "o" ring with food grade
lubricant before re-assembling shell.
13. Check for alignment of ice chute. Make sure chute gasket is not blocking path of ice flow.
14. Check bin thermostat operation. In the mid-range position the bin thermostat will open at 42 and
has a 6 differential.
S C
ANITIZING AND
1. Turn unit off at switch in upper rear right side panel.
2. Turn water off and remove water hose from bottom of float chamber inside of ice bin and allow to
drain from the evaporator via the hose end; or
3. Remove float chamber cover and while holding float up to prevent more water from entering the
float chamber, remove water hose from float chamber and proceed to drain the float chamber and
evaporator.
4. With water still off, restore water hose to float chamber and add 1/2 oz. of "sanitizer" (see note
below). Turn water on.
5. Remove the bin door, float chamber cover, ice chute trim cover, two thumb screws and chute trim
gasket.
6. Using soap, hot water, and a non-metallic bristle brush or plastic scouring pad, scrub the parts
removed in step 4 as well as the interior of the ice bin, ice chute, thermowell, door tracks, ice bin
top, and around bin opening.
© 2004, IMI Cornelius Inc.

MAINTENANCE

P
LEANING ROCEDURE
- 9 -
Self-Contained Flaked Ice Maker Service Manual
Publication Number: 166240010SER