User Guide
– 33 –
Fig. 55
MAINTENANCE
PUMP TUBE MAINTENANCE
Pump tubing is a wear item. Contact Hobart 
Service to replace tubing periodically on grease 
pump,  chemical  pump  and  water  pump  to 
avoid leakage. 
As  pump  tubing  wears,  leaks can  occur.  In 
the event of tubing leak or break, machine is 
designed to direct liquids to outside of oven  
(Fig. 52).  If this condition is observed, contact 
Hobart service.
YEARLY CLEANING 
Wash nozzles are  located between the ceiling of the oven  and the upper cover  
to clean the convection fan and heating chamber.  However, it is recommended that 
you inspect and clean the oven once yearly, as needed. 
Clean the ceiling of the oven interior to remove potential grease build-up. 
Excessive  grease  build-up  on  convection  fan  blade(s)  and / or  upper  cover  will 
decrease the oven's cooking performance over time.
NOTE:  For ease of cleaning, replacement fan blade(s) are available from Hobart 
Service.
  1.  Open the door. Make sure that the  drive arm is in the downward position   
(Fig. 53). Press OFF. 
 Disconnect electrical power supply to the machine and follow 
lockout / tagout procedures before cleaning or servicing. 
 Hot glass, grease and parts can cause burns. Use care when 
operating and servicing the oven. 
  2.  Remove the rotor.  Lift up on the side of the rotor opposite the drive arm. Then, lift up and out to 
disengage the rotor from the two drive pins on the drive arm (Fig. 54).
Fig. 53
ROTOR REMOVED
DRIVE ARM
Fig. 54
Fig. 52
3.  Unscrew  the  acorn  nut  in  the  middle  of  the 
upper cover, inside the oven chamber (Fig. 55).   
Use a 
7
/16" wrench or nut driver. 
TUBING LEAKS ARE 
DIRECTED OUTSIDE OVEN










