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18
ENGLISH
I. MAINTENANCE - DAILY
A. Check that the oven is cool and the power is disconnected,
as described in the warning at the beginning of this Section.
B. Clean the outside of the oven with a soft cloth and mild
detergent.
C. Clean the front cooling fans, as follows:
Snap off the protective grille, and wipe it clean with a cloth.
See Figure 4-1.
Remove the foam filter and inspect it. If it is dusty, shake
it briskly. If dirt or grease is present on the filter, wash it
in warm, soapy water. Rinse the filter, squeeze it to
remove as much of the water as possible, and then set
it aside to dry thoroughly before reinstallation.
Once the filter is dry, reinstall the filter and grille.
D. Clean the motor shroud and rear grills using a stiff nylon
brush. Refer to Figure 4-2 for the locations of the grills.
E. Check that ALL cooling fans are operating properly.
CAUTION
If a cooling fan is not operating correctly, it must be replaced
IMMEDIATELY. Operating the oven without adequate
cooling can damage the oven's internal components.
F. Clean the conveyor belts with a stiff nylon brush. This is
more easily accomplished by allowing the conveyor to run
while you stand at the exit end of the conveyor. Then, brush
the crumbs off the conveyor as it moves.
G. Remove and clean the crumb trays. When reinstalling the
trays, refer to Figure 2-12 (in Section 2,
Installation).
H. Clean the window in place.
WARNING
Before ANY cleaning or servicing of the oven, perform the following procedure:
1. Switch off the oven and allow it to cool. Do NOT service the oven while it is warm.
2. Turn off the electric supply circuit breaker(s)
and disconnect the electric supply to the oven.
3. If it is necessary to move a gas oven for cleaning or servicing, disconnect the gas supply connection before moving the oven.
SECTION 4 - MAINTENANCE
WARNING
Possibility of injury from moving parts and electrical shock exists in this oven. Switch off and lockout/tagout the electric supply
BEFORE beginning to disassemble, clean, or service any oven. Never disassemble or clean an oven with the BLOWER
( )
switch or any other circuit of the oven switched on.
CAUTION
NEVER use a water hose, water jet, or pressurized steam-cleaning equipment when cleaning this oven. DO NOT use
excessive amounts of water, to avoid saturating the oven insulation. DO NOT use a caustic oven cleaner, which can damage
the aluminized bake chamber surfaces.
NOTE
ANY replacement parts that require access to the interior of the oven may ONLY be replaced by a Middleby Marshall Authorized
Service Agent. It is also strongly recommended that the 3-Month Maintenance and 6-Month Maintenance procedures in this
section be performed ONLY by a Middleby Marshall Authorized Service Agent.
When all cleaning and servicing is complete:
1. If the oven was moved for servicing, return the oven to its
original location. Adjust the legs so that they are seated
properly on the floor.
2. For gas ovens, reconnect the gas supply.
3. Reconnect the electrical supply.
4. For gas ovens, turn on the full-flow gas safety valve. Test
the gas line connections for leaks using approved leak
test substances or thick soap suds.
5. Turn on the electric supply circuit breaker(s).
6. Perform the normal startup procedure.
Figure 4-1 - Front Cooling Fans
Foam filter
Protective grill
Figure 4-2 - Rear Grills and Motor Shroud Grill
Grill on top of
conveyor motor
shroud
Grills on rear of
rear shrouds (2)
Grills on inside
face of rear
shrouds (2 - gas
ovens only)
Grills on top
and bottom
of rear
shrouds (4)
Grills on end
shrouds (4)