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23 P/N60250September28,2012
Vents on
front panel
of oven
Fan grills (2) on rear
of oven and control
compartment
Vent (1) on rear
of machinery
compartment
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 or pressurized steam-cleaning equipment when cleaning this oven. To avoid saturating the oven
insulation, DO NOT use excessive amounts of water. DO NOT use a caustic oven cleaner, which can damage the bake
chamber surfaces.
NOTE
ANY replacement parts that require access to the interior of the oven may ONLY be replaced by a Middleby Marshall Autho-
rized 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.
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 before moving the
oven.
When all cleaning and servicing is complete:
1. If the oven was moved for servicing, return the oven
to its original location.
2. If the restraint cable was disconnected to clean or
service the oven, reconnect it at this time.
3. Reconnect the gas supply.
4. Reconnect the electrical supply.
5. Turn on the full-ow gas safety valve. Test the gas
line connections for leaks using approved leak test
substances or thick soap suds.
6. Turn on the electric supply circuit breaker(s).
7. Perform the normal startup procedure.
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 ALL of the cooling fan grills and vent openings with
a stiff nylon brush. Refer to Figure 4-1 for the locations of
the grills and vents.
C. Clean the outside of the oven with a soft cloth and mild
detergent.
D. 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 seriously damage
the oven's internal components.
E. 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.
F. Remove and clean the crumb trays. If necessary, refer to
Figure 2-16 (in Section 2, Installation) when replacing the
crumb trays into the oven.
G. Clean the window in place.
Figure 4-1. Cooling Vents and Grills