MCi Crusader II 1989 Maintenance Manual page 125

Date 1-1-89
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MC-9 MAINTENANCE MANUAL
ilEPLACING COOLING UNIT
Disconnect all power sources and remove all food. Re-
move the three screws which secure the thermostat assembly
to the cabinet. Remove the two nuts on the evaporator, lower
the front and carefully pull it forward out of its holder.
Remove power supply couplers and ground wire, then
remove the eight screws holding on the rear cover plate.
Remove.both flange nuts from the cooling unit and slowly pull
outwards by holding onto the hanger. Ensure the evaporator
does not catch on the inner case.
Remove both cords from the swing motor.
Allow the cooling unit to lay on the condenser side, remove
the two screws from the blind cover and the capillary tube
located at the bottom of the evaporator. Move the inner suction
pipe inner bushing as indicated in figure 3-50 and remove.
For installation follow the reverse order of disassembly.
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Figure 3-49. Removing Thermostat And Evaporator.
Figure 3-50. Removing Capillary Tube And Bushing.
REPLACING THERMOSTAT
Remove the three screws on the thermostat mounting and
the two screws holding the capillary tube underneath the
evaporator. Pull off the thermostat dial and detach the set plate
from the thermostat support in the direction shown in figure
3-51.
Peel off the dial mark from the cover and remove the two
screws holding the thermostat to its support Detach the ther-
mostat receptacle and disengage the two grey wires from the
slip-on connectors. To replace the thermostat follow the re-
verse order of disassembly.
Figure 3-51. Removing Capillary Tube And Thermostat .
REPLACING THE POWER SUPPLY
Remove the seven screws securing the power supply to the
rear of the cabinet. Remove the ground cord and disconnect
the two power supply cords. Remove the transformer assem-
bly from the power supply. Cut off the AC supply cord at its
connecting point and release the grommet securing it to the
case. Release the grommet securing the DC cord to the power
supply case.
Remove all the screws securing the oscillator assembly
and relay to the power supply case. Disconnect the 9-pole
coupler connecting the oscillator assembly and the trans-
former assembly. Replace the transformer or oscillatorfollow-
ing the reverse order of disassembly.
When replacing with new parts, ensure that wires are con-
nected exactly as removed.
Figure 3-52. Cut Off AC Supply Cord.
. .