Follett 12 Installation, Operation And Service Manual page 30

Evaporator disassembly
Note: The upper bearing, lower bearing and auger assemblies must be replaced as assemblies. The bottom
and top bearing assemblies cannot be fi eld assembled to factory specifi cations.
1. Disconnect power to ice machine.
2. Shut off water to ice machine.
3. Drain evaporator and fl oat tank.
4. Disconnect plastic tubing from evaporator water inlet, drain pan stub,
compression nozzle tubing and reservoir overfl ow tubing from secured clip.
5. Disconnect ice transport tube from compression nozzle.
6. Remove nut and upper vee band coupling from top of evaporator
7. Lift top bearing assembly straight up with a slight rotating motion and remove.
8. Remove ice compression loop located at top of auger.
9. Lift auger straight up and out of evaporator.
10. Remove nut and lower vee band coupling from bottom of evaporator.
11. Lift evaporator to clear bottom bearing assembly.
12. Loosen hex head bolt in side of mounting base with 5/16 wrench and lift lower
bearing assembly.
13. Remove condensate shield.
14. Remove 4 Allen head machine screws holding mounting base to gearbox.
15. If replacing evaporator, remove compression nozzle from evaporator port.
Evaporator reassembly
1. Clean gearmotor boss, output shaft and shaft well.
2. Install drain pan and evaporator mounting base.
3. Fill gear motor shaft well with food grade grease.
4. Install condensate shield and seat against gear motor boss.
5. Install bearing O ring in groove in evaporator mounting base.
6. Lower bottom bearing assembly into evaporator mounting base.
7. While maintaining a slight downward pressure on bottom bearing
assembly, tighten hex head bolt with a 5/16 wrench.
8. Position evaporator over lower bearing assembly and align grooves
with pins in bearing assembly.
9. Install vee band clamp and nut to 70 in/lb.
10. Place auger in center of evaporator and rotate to mate with drive
pin.
11. Install ice compression loop, orienting loop.
12. Install upper bearing and seal assembly, rotating bearing to slip pin
into auger slot.
13. Install upper vee band clamp and nut to 70 in/lb.
14. If evaporator was replaced, reinstall compression nozzle on new.
Gearmotor replacement
1. Disassemble evaporator as described above.
2. Disconnect the wire connectors.
3. Remove 4 screws holding gear motor mounting plate to base of ice machine and lift gearbox and
motor clear of ice machine.
4. Remove machine screws holding mounting plate to motor.
5. Install new motor in reverse order.
30
Apply grease
in well
12CI400A • 12HI400A