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6.1 General
This section contains both preventive and corrective
maintenance information. Preventive maintenance may be
performed by maintenance personnel at the establishment
in which the cooker is installed. It is recommended that
user personnel never attempt to make repairs or
replacements to the equipment without the assistance of
authorized service. Assistance in service methods or a
current Directory of Authorized Agencies may be obtained
from Market Forge (see Subsection 1.3).
6.2 Preventive Maintenance
A good preventive maintenance program begins with the
daily cleaning procedure described in Subsection 3.3.
Additional preventive maintenance operations are
presented in this section. In establishments that employ
full-time maintenance personnel, the tasks described can
be assigned to them. For other installations, tasks
requiring mechanical or electrical experience should be
performed by an authorized service agency.
The following paragraphs set forth minimum preventive
maintenance procedures that must be completed
periodically to assure continued trouble-free operation of
the cooker.
Under no circumstances should hardware (or parts) be
replaced with a different length, size, or type other than as
specified in the parts list. The hardware used in the cooker
has been selected or designed specifically for its
application, and the use of other hardware may damage
the equipment and will void any warranty.
6.2.1 Cooking Compartment Cleaning
A daily cleaning of the cooking compartment and pan
supports is required. See Subsection 3.3 for details.
6.3 Repair & Replacement
Section 7 of this manual contains a listing of all
replaceable parts and associated exploded views of the
ST-12 Cooker. In most cases, disassembly procedures will
be obvious from the exploded views. Instructions follow for
procedures that are not readily apparent.
6.3.1 Door Latch Tension Adjustment
Shut off main electrical power to unit.
Procedure:
1. Open the cooking compartment door.
SECTION 6 MAINTENANCE
CAUTION
CAUTION
2. Remove the control panel by removing the eight
mounting screws and disconnecting the wire plug and
restraining wire.
3. Tighten both nuts down until the springs are fully
compressed.
4. Back each nut off 1/2 turn.
5. Remount the control panel, reconnecting wire plug and
restraining wire.
6.3.2 Door Handle Tension Adjustment
Procedure:
1. Open the cooking compartment door.
2. Remove the six screws and washers from the top edge
and bottom edge of the door.
3. Remove the inner door gasket mounting plate assembly
from the outer door. Do not disassemble these three
components—remove them as an assembly.
4. Tighten both nuts down until the springs on the outer
door are fully compressed.
5. Back each nut off 1/2 turn.
6. Remount the inner door gasket mounting plate
assembly by assembling the six screws and washers.
6.3.3 Door Gasket Replacement
The cooking compartment door gaskets are made of a
silicone-type rubber material that is very durable but
subject to wear during normal operation. Should the
gasket leak, readjust the door gasket to the unit or replace
it.
Procedure—Replace Gasket:
1. Open the cooking compartment door.
2. Remove the six screws on the outside of the door, and
remove the inner door assembly.
3. Remove the eight nuts from the door gasket mounting
plate on the inside of the inner door assembly.
4. Remove the door gasket mounting plate and the door
gasket.
5. Install the new door gasket (see Figure 7-2 for part
number) to the mounting plate.
6. Reassemble the mounting plate with gasket to the
inside of the inner door assembly using the eight nuts.
6-1
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