Middleby Marshall PS360WB EN - Manual (Page 28)

4-4
SECTION 4
MAINTENANCE
III. MAINTENANCE - EVERY 3 MONTHS
A. Check that the oven is cool and the power is discon-
nected, as described in the warning on Page 4-1.
B. Vacuum both of the blower motors, and their sur-
rounding compartments, using a shop vacuum.
C. Tighten all electrical control terminal screws.
IV. MAINTENANCE - EVERY 6 MONTHS
A. Check that the oven is cool and the power is discon-
nected, as described in the warning on Page 4-1.
B. Check for excessive wear on the conveyor drive
motor brushes. The brushes should be replaced if
they have worn to less than 1/4" (6.4mm) in length.
C. Clean and inspect the burner nozzle and electrode
assembly.
D. Check (and clean, if necessary) the oven venting
system, including the flue.
E. TANDEM AND DOUBLE TANDEM OVENS ONLY:
Check the conveyor drive shaft bushings and spac-
ers. Replace the components if they are worn.
F. TRI TANDEM AND QUAD TANDEM OVENS ONLY:
Check the conveyor shaft bushings for wear. If
necessary, lubricate the bearings.
NOTES: