Middleby Marshall 60254 Manual Do Utilizador

P/N 60254 September 28, 2012

E. Blower Belt
1.   Remove  the  eight  screws  shown  in  Figure  4-7.  Then, 

remove the rear panel from the oven.

2.   Check the blower belt for the proper 1/4″ (6mm) deflection 

at the center, and for cracking or excessive wear.

See Figure 4-7. Overtightening the belt will cause premature 

bearing failure and possible vibrations. A loose belt may also 

cause vibrations.
3.   If necessary, adjust the tension of the belt by loosening 

the four motor mounting bolts. Reposition the motor as 

neccessary  until  the  correct  1/4″  (6mm)  deflection  is 

reached, then tighten the bolts.

Remove eight (8) 

screws to remove 

rear panel

Blower belt

Bearings

(2 total)

Blower motor

Loosen four (4) screws to adjust mo-

tor position and belt tension

A.  Check that the oven is cool and the power is disconnected, 

as described in the warning at the beginning of this Section.

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" (6mm) in length. Be sure to replace 

the brushes in exactly the same position.

C.  For gas ovens, inspect and clean the burner nozzle and 

the spark electrode assembly.

D.  Check  the  conveyor  drive  shaft  bushings  and  spacers. 

Replace the components if they are worn.