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4-14
SECTION 4
MAINTENANCE
IV. MAINTENANCE - EVERY 6 MONTHS
WARNING: All electric power must be shut
off
before
beginning this maintenance procedure.
NOTE: It is recommended that an authorized Middleby
Marshall service agent should perform the 3-month and
6-month maintenance procedures.
A. Check the brushes of the conveyor drive motor; when
worn to less than 3/32" (2.4mm), replace the brushes.
B. Clean and inspect the burner nozzle and electrode
assembly. Also, check the oven venting system; clean
the oven flue, when necessary.
C. For Tandem and Double Tandem Ovens, check the
conveyor drive shaft bushings and spacers. Replace any
worn parts.
D. For Tri Tandem and Quad Tandem Ovens, check
for wear on the conveyor shaft bearings. If necessary,
lubricate with NLGI #2 Lithium-base Grease.
IMPORTANT NOTICES:
• The installation, startup, and changes required for
changing from one gas type to another can be
performed only by an authorized service agent.
• Installation of replacement parts requiring access
to the interior of the oven is permitted only by
authorized service personnel.
• If there are any problems with the operation of the
oven, an authorized service agent must be called.
• Obtaining a service contract with a manufacturer's
authorized service agent is recommended.