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AUGER MAINTENANCE

In some areas, the water supply to the ice maker

will contain a high concentration of minerals, and

that will result in an evaporator and auger

becoming coated with these minerals, requiring a

more frequent removal than twice per year. If in

doubt about the condition of the evaporator and

auger, the auger can be removed so the parts can

be inspected.

Note: Water filters can filter out suspended solids,

but not dissolved solids. “Soft” water may not be

the complete answer. Check with a water

treatment specialist regarding water treatment.

For more information on removal of these

parts, see REMOVAL AND REPLACEMENT.

Disconnect electrical power, and shut off the

water supply.

Use care when removing the auger, it has

sharp edges.

1. To remove the auger, remove the front and top

panels.

2. Drain evaporator using drain hose.

3. Remove bail clamp from over ice chute cover

and remove cover.

4. Unscrew and remove ice sweep.

5. Remove ice chute from evaporator.

6. Remove 4 allen screws holding breaker to

evaporator.

7. Pull up to remove auger.

After the auger has been removed, allow the auger

to dry: if the auger is not bright and shiny, it must

be cleaned.

Clean the auger and evaporator as required. DO

NOT HONE THE EVAPORATOR.

8. Replace the water seal.

9. Reverse to reassemble.

NDE754

March 2000

Page 18

BREAKER AND

AUGER ASSEMBLY

Moving Parts Hazard.

Disconnect electrical

power to the icemaker -

dispenser before

beginning.

Содержание NDE754

Страница 1: ...THE INSTALLER Specifications Page 2 FOR THE INSTALLER Page 3 FOR THE PLUMBER Page 4 FOR THE ELECTRICIAN Page 5 FOR THE INSTALLER Final Check List Page 6 INITIAL START UP Page 7 COMPONENT DESCRIPTION P...

Страница 2: ...ons An ice machine is a food manufacturing plant it takes in a raw material water and turns it into a food product ice The purity of the water is very important in obtaining pure ice and in maximizing...

Страница 3: ...ers so that the stand does not rock Counter Top or Machine Stand Installation The base of the icemaker dispenser must be sealed to the object it rests upon Food grade silastic sealant such as Scotsman...

Страница 4: ...t to the 3 8 FPT condenser inlet at the back of the cabinet The water pressure to all lines must always be above 20 psig and below 120 psig Drains Air Cooled Models Connect a drain tube to the one 3 4...

Страница 5: ...ity The machine requires a solid chassis to earth ground wire The ice maker should be connected to its own electrical circuit so it would be individually fused Voltage variation must remain within des...

Страница 6: ...checked and compared to nameplate requirements 3 Have all of the plumbing connections been made and checked for leaks 4 Has the machine been leveled 5 Is there a minimum of 6 inches of clearance at t...

Страница 7: ...sure will depend upon air and water temperatures but should be between 200 PSIG and 300 PSIG Water cooled discharge pressure should be about 245 PSIG If needed adjust the water regulating valve The ab...

Страница 8: ...oint 15 psig Drain Tube When uncapped and lowered drains the evaporator Condenser Air or water cooled where the heat removed in ice making is discharged Ice Storage Bin Assembly A plastic lined insula...

Страница 9: ...he two seal faces meet Ice Sweep A plastic cap with fingers It revolves with the auger to sweep the ice into the ice chute Breaker Where the ice is compressed and much of the extra water is squeezed o...

Страница 10: ...vel and water level The relays are for the gear motor with a built in time delay to clear the evaporator of ice when the unit turns off and for the compressor Mode Switch Manual control for the machin...

Страница 11: ...e pushing the glass filler lever will repeat the dispense cycle Shut Down The compressor relay opens LED1 goes out The compressor contactor opens The compressor stops The auger motor stays on for 1 mo...

Страница 12: ...water regulating valve then to the water cooled condenser and down the drain The water dispensing station adds an additional water circuit When the water station glass filler lever is pushed a switch...

Страница 13: ...depending upon the temperature of the evaporator warmer evaporators get more refrigerant and colder evaporators get less At the evaporator the refrigerant enters an area of relatively low pressure whe...

Страница 14: ...nected to the agitator drive motor Dispensing takes place when the agitator sweeps the ice through the ice dispensing chute ice will continue to discharge out this chute as long as the agitator is tur...

Страница 15: ...15 minutes then switch the master switch to ON 9 As the ice maker begins to use water from the reservoir continue to add more cleaning solution to maintain a full reservoir 10 After all of the cleani...

Страница 16: ...nd the tip wiped clean of mineral build up 2 The bin control uses devices that sense light therefore they must be kept clean enough so that they can see At least twice a year remove the bin control se...

Страница 17: ...e action of the bearing It should rotate smoothly To remove the breaker remove the lower ice chute then take out all four allen head cap screws and pull the breaker off the auger and evaporator If the...

Страница 18: ...VAL AND REPLACEMENT Disconnect electrical power and shut off the water supply Use care when removing the auger it has sharp edges 1 To remove the auger remove the front and top panels 2 Drain evaporat...

Страница 19: ...d in evaporator Low pressure control open Auger not turning due to motor failure auger relay failure on circuit board or gears stripped Check drive train TXV restricted or not metering Check bulb temp...

Страница 20: ...essor is not check the compressor contactor coil If it is on the ice sensors may be blocked Remove them and check for mineral scale Scotsman s test box can also be used to determine if the ice sensors...

Страница 21: ...el sensor probe 8 Remove mounting screws from reservoir bracket and remove reservoir from icemaker 9 Reverse to reassemble BIN CONTROLS Ice Level Sensors 1 Disconnect electrical power 2 Remove front p...

Страница 22: ...h spots and damage a The bearing is pressed into the breaker to remove the bearing and replace it an arbor press is needed b Replace lower seals before installing new bearing in breaker Note seals mus...

Страница 23: ...rews holding breaker to evaporator d Lift up remove breaker from evaporator e If the auger is stuck use a slide hammer type puller to pull on the auger at the threaded hole The size of that hole is 5...

Страница 24: ...he grove for the snap ring 2 Replace the snap ring and pull the water seal down against it 3 The part of the water seal that rotates with the auger must also be replaced Remove the old part from the a...

Страница 25: ...new drier in the liquid line 7 Evacuate the system until dehydrated then weigh in the nameplate charge Check for leaks 8 Install auger breaker breaker bearing assembly and ice discharge chute in rever...

Страница 26: ...ne if the oil is If there is evidence of water in the oil rusty bearings and gears the oil having a creamy white appearance oil level too high carefully inspect the bearings and gears If in doubt abou...

Страница 27: ...glass and or a restricting device such as a Charge Faster installed in it for metering liquid into the low side of the system 1 After a thorough evacuation shut off the manifold valves and switch off...

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