Water Seal - Scotsman NM1250 Service Manual

NM1250
REMOVAL AND REPLACEMENT: Water Seal
REMOVAL OF THE WATER SEAL
/////////////////////////////WARNING////////////////////////////
Disconnect the electrical power to the
machine at the building source BEFORE
proceeding with any repair.
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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.
WATER
SEAL
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
RETAINING
where the water seal is to be mounted.
RING
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.
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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.
February, 1989
Page 26