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To Remove the Water Seal: 
(Assuming all steps to remove the auger have
been performed.)
1. The gearmotor/evaporator assembly will have to
be exposed.
2. Remove the 4 hex head cap screws holding the
evaporator to the gearmotor assembly.  Lift the
evaporator up and off of the gearmotor.
3. Remove the snap ring or wire retainer from the
grove under the water seal.
4. Pull or drive out the lower half of the water seal.

To Replace the Water Seal:
1. Lubricate the water seal with water, and push
the water seal into the bottom of the evaporator
slightly past the 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 auger and clean the mounting area.
4. Place a small bead of food grade silastic sealant
(such as 732 RTV or Scotsman part number
19-0529-01) on the area of the auger where the
water seal is to be mounted.

5. Carefully push the water seal (rubber side
against the auger shoulder and the silastic.)
////////////////////////////////CAUTION//////////////////////////////
Do not get any silastic onto the face of the seal.
//////////////////////////////////////////////////////////////////////////////
6. Allow the auger and seal to air dry until the
silastic is dry on the surface.
7. If the original water seal was leaking, it would be
a good idea to inspect the interior of the gearmotor.

REMOVAL AND REPLACEMENT: Water Seal

WATER SEAL

RETAINING

RING

REMOVAL OF THE WATER SEAL

PLACE FOOD

GRADE SEALANT

HERE

REPLACING THE WATER SEAL

NME650 & FME800

February 1997

Page 27

Содержание FME800

Страница 1: ...ty information on a potential hazard Table of Contents FOR THE INSTALLER 2 SAMPLE BIN AND MACHINE COMBINATIONS 3 FOR THE INSTALLER 4 FOR THE PLUMBER 6 FOR THE ELECTRICIAN 7 START UP 9 COMPONENT DESCRI...

Страница 2: ...04 126 Compared to the nameplate Operating the machine outside of the limitations is misuse and can void the warranty The normal finish for the ice machine is enamel A stainless steel panel kit SPKFM2...

Страница 3: ...Bin Top Kit Required SAMPLE BIN AND MACHINE COMBINATIONS FME800 ON BH550 NME650 ON BH800 FME800 ON BH900 The Nameplate is located on the back of the machine NME650 FME800 February 1997 Page 3...

Страница 4: ...ce easier 1 Remove the 2 top panel screws that will face each other 2 Remove the 2 service panels that will face each other 3 Add a strip of gasket such as Scotsman part number 19 0503 04 to the 2 bas...

Страница 5: ...FOR THE INSTALLER Location TWO UNITS ON ONE BIN ALLOW ROOM FOR AIR CIRCULATION AND SERVICE ACCESS DO NOT STACK ANYTHING IN FRONT OF THE MACHINE S NME650 FME800 February 1997 Page 5...

Страница 6: ...inet The water pressure to all lines must always be above 20 psig and below 80 psig Drains Air Cooled Models There is one 3 4 FPT drain at the back of the cabinet the drain line is of the gravity type...

Страница 7: ...ine 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 design limitati...

Страница 8: ...requirements 3 Have all the plumbing connections been made and checked for leaks 4 Has the machine and bin been leveled 5 Is there a minimum of 6 clearance at the back of the machine for proper servic...

Страница 9: ...will open and warm water will be discharged into the drain 5 The unit should soon be making ice if desired the low side pressure can be checked it should be 34 psig or 4 psig The suction line tempera...

Страница 10: ...here is no water Ice Discharge Chute Directs the ice produced by the evaporator into the storage bin Ice Level Sensor An electronic eye it senses the presence of ice in the bottom of the ice discharge...

Страница 11: ...in the reservoir Amp draw of the gearmotor The loads include Compressor contactor Fan motor Auger drive motor Low Pressure Cut Out Switch A manual reset control that shuts off the ice machine when the...

Страница 12: ...ng where the 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...

Страница 13: ...wn Shut Down consists of The compressor relay opens The compressor contactor opens The compressor stops The auger motor is run by the circuit board for 2 more minutes clearing out ice in the evaporato...

Страница 14: ...e cooling water it enters the fitting at the rear goes to the water regulating valve then to the water cooled condenser and down the drain Water Level The correct water level should be checked when th...

Страница 15: ...vaporates it absorbs heat from the evaporator and whatever is in contact with it such as the water inside it After the evaporator the refrigerant now a low pressure vapor goes through the suction line...

Страница 16: ...the water reservoir until it is full Wait 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...

Страница 17: ...eck the bearing by switching the machine OFF removing the ice chute cover unscrewing the ice sweep removing the water shed unscrewing the breaker cover unscrewing the auger stud Inspect the assembly l...

Страница 18: ...ed or replaced B Clean the condenser the condenser may appear to be clean on the surface but it can still be clogged internally Check with a flash light from the front to see if light can be seen thou...

Страница 19: ...T 1 To remove the auger remove the front and top panels 2 Push bail clamp back from the top of the chute cover 3 Unscrew and remove ice sweep 4 Remove 4 allen screws holding breaker to evaporator 5 Pu...

Страница 20: ...k for a Thermostatic Expansion Valve that does not open if defective replace it Replace the drier evacuate and weigh in the nameplate charge E Check the high pressure cut out if closed go to F if open...

Страница 21: ...f the ice level sensors should be replaced 3 If the transformer is fine and the no water light is ON check the water level sensor a Check the water level in the reservoir restore if low If the water l...

Страница 22: ...s open replace the contactor 3 Check the auger drive motor centrifugal switch If when the drive motor is running contact 4 black wire removed has no power and all of the above switches have been check...

Страница 23: ...aks replace the water seal if found to be leaking 3 Check the low side pressure normal is about 32 34 psig If low assume a refrigerant leak locate repair and recharge If no leak the TXV may be restric...

Страница 24: ...ed through the holes in the ice chute ICE CHUTE SLIDE BIN CONTROLS IN AND OUT REMOVAL AND REPLACEMENT Bin Controls Plunger Valve Seat Locking Tab Float Valve RESERVOIR 1 Shut off water supply 2 Remove...

Страница 25: ...rust rough 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...

Страница 26: ...emove 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 8 18 Inspect the auger the critical areas of t...

Страница 27: ...inst it 3 The part of the water seal that rotates with the auger must also be replaced Remove the old part from the auger and clean the mounting area 4 Place a small bead of food grade silastic sealan...

Страница 28: ...until dehydrated then weigh in the nameplate charge Check for leaks 8 Install auger breaker breaker bearing assembly and ice discharge chute in reverse order of disassembly See To Reassemble Evaporat...

Страница 29: ...y to be fine 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...

Страница 30: ...t meet ARI spec 700 88 Reclaim programs are available through most refrigerant wholesalers Access Valves To use the access valves Remove the cap from the stem use a 3 16 allen wrench to check that the...

Страница 31: ...red This system has a critical charge it must be recharged with the correct amount of refrigerant as listed on the nameplate of the ice machine or performance will suffer Anytime the refrigeration sys...

Страница 32: ...ll switch to Bin Empty The light on the tester should go OFF and the Bin Empty light on the circuit board should go ON If the Bin Empty light is ON wait 10 20 seconds for the machine to start if the m...

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