Stoelting E157, Service Manual

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SECTION 7
MAJOR COMPONENT REMOVAL AND INSTALLATION
Figure 41. Fan Removal
7.1 INTRODUCTION
This section covers the removal and installation of the
condenser fan, drive motor and compressor. It is extremely
important to follow each step accurately and completely.
Failure to do so could result in further problems later.
7.2 CONDENSER FAN REMOVAL
To remove a condenser fan which has been found to be
defective, refer to the following procedures:
WARNING
DISCONNECT FREEZER FROM ELECTRICAL
SUPPLY SOURCE BEFORE SERVICING.
1. Remove the necessary panels: Model E257 back and
side panels, Model E157 back panel and back shroud.
2. Disconnect the condenser fan lead wires.
3. Using a 5/16" nut driver or a phillips screwdriver, remove
the four fastening screws from the fan mounting brack-
ets (Fig.41).
4. Remove the fan and its supports through the side of the
freezer taking care not to damage the fan blade.
7.3 DRIVE MOTOR REMOVAL
To remove a defective drive motor, perform the following
procedures:
WARNING
DISCONNECT FREZER FROM ELECTRICAL
SOURCE BEFORE SERVICING.
1.Remove the necessary panels. Model E257 back and
side panels. Model E157 front sides and bottom panels.
2. Disconnect the lead wire from the drive motor capacitor.
3. Disconnect the wire leading from the drive motor to the
reset switch on the front of the freezer (Fig.42),
4. Remove the three socket head cap screws securing the
mounting flange to the bearing (Fig.43). Remove the
drive motor from either side.
Figure 43. Drive Motor Removal
If the drive motor failure is due to a defective drive motor
mount bearing, replace the bearing assembly as follows:
1. Remove snap ring.
2. Slide bearing down and off.
3. Slide new bearing on and replace snap ring. Bearing
must turn freely when assembled.
7.4 COMPRESSOR REMOVAL
To remove a defective compressor, perform the following
procedures:
Socket
Head
Screws
Figure 42. Disconnect Wire
Ë Ë Ë Ë Ë
É É É É É
Fastening Screws
Å Å
Å Å Å
Connector