Bearing And Breaker - Scotsman NM650 Service Manual

REMOVAL AND REPLACEMENT: Bearing And Breaker
Note: Removal of the auger, water seal,
evaporator and gearmotor must begin at the
top of the assembly.
To Remove the Breaker Bearing Assembly:
//////////////////////////////WARNING////////////////////////////
Disconnect the electrical power to the
machine at the building source BEFORE
proceeding with any repair.
//////////////////////////////////////////////////////////////////////////
1. Remove panels and disconnect electrical
power.
2. Unscrew three studs and remove ice chute
cover.
3. Unscrew and remove ice sweep.
4. Remove insulation halves from outside of
ice chute, loosen band clamp under ice chute,
lift up and remove ice chute. Units built after
January 1991 also require the bail clip to be
pulled off of the chute cover. See page 19.
5. The breaker may be removed from the
auger and evaporator without disturbing the
auger.
a. Use spanner wrench and unscrew breaker
cover from breaker (left hand threads)
b. Unscrew auger stud from top of auger.
Step 5-a
SPANNER
WRENCH
Step 5-b
ICE
SWEEP
BREAKER
COVER
January, 1991
c. Unscrew 4 allen head cap screws holding
breaker to evaporator.
d. Lift up, and remove breaker/bearing
assembly from auger & evaporator.
6. Service the bearing. Check for 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: seals must be pressed in with a tool
pushing against the outer edge only, they will
not install by hand.
Replace parts as required. Re-grease bearing
with Scotsman part no. 19-0609-01 bearing
grease. Replace top seal, and check the
o-rings, replace if cut or torn.
7. Reverse to reassemble: specific tools and
materials are required to install properly.
a. Add food grade grease such as Scotsman
part number 19-0569-01 to the seal area
before installing on the auger.
b. Check the seal to shaft areas for cuts, or
rough spots: none are permitted.
AUGER
STUD
Page 25
NM650
Step 5-c and Step 6
BEARING
SEALS