II. MAINTENANCE - MONTHLY. Middleby Marshall PS310 series, PS360 SERIES, PS360WB70, PS360WB SERIES, PS360Q, PS314, PS360EWB, PS360S, PS300 Series
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SECTION 4 - MAINTENANCE
II. MAINTENANCE - MONTHLY
Figure 4-4 - Removing Air Fingers and Plates
NOTE
Air Finger When removing the conveyor, refer to the drawings on Pages 12-
13 in the Installation section.
A. Check that the oven is cool and the power is disconnected, as described in the warning on Page 20.
B. Remove the drive motor shroud and conveyor extension covers from the oven. Disconnect the drive chain from the sprocket on the drive shaft of the conveyor.
Blank Plate
C. Slide the conveyor out of the oven.
NOTE
Split belt conveyors can only be removed from the end of the oven with the drive motor.
Single-belt conveyor assemblies may be removed from either end of the oven. If it is to be removed from the end of the oven without the drive motor, the drive sprocket assembly must be removed.
To remove the drive sprocket (if necessary), loosen the set screw on the conveyor collar as shown in Figure 2-12 (on
Page 12). Then, pull the sprocket assembly straight out.
D. Remove the end plugs from the oven. The end plugs are shown in Figure 1-1, on Page 4 of this Manual.
E. Slide the air fingers and blank plates out of the oven, as shown in Figure 4-4. AS EACH FINGER OR PLATE IS
REMOVED, WRITE A "LOCATION CODE" ON IT WITH A
MARKER to make sure that it can be reinstalled correctly.
Example of markings:
(Top Row) T1 T2 T3 T4 T5 T6
(Bottom Row) B1 B2 B3 B4 B5 B6
F. Disassemble the air fingers as shown in Figure 4-5. AS
EACH FINGER IS DISASSEMBLED, WRITE THE "LOCA-
TION CODE" FOR THE FINGER ON ALL THREE OF ITS
PIECES. This will help you in correctly reassembling the air fingers.
CAUTION
Incorrect reassembly of the air fingers will change the baking properties of the oven.
G. Clean the air finger components and the interior of the baking chamber using a vacuum cleaner and a damp cloth.
Refer to the boxed warnings on Page 20 for cleaning precautions.
H. Reassemble the air fingers. Then, replace them in the oven, using the "location code" as a guide.
I.
Replace the end plugs on the oven.
J. Reassemble the conveyor into the oven. If the drive sprocket was removed when installing the conveyor, replace it at this time.
K. Reattach the drive chain.
L. Check the tension of the conveyor belt as shown in Figure
2-15 (on Page 12). The belt should lift between 3-4" (75-
100mm). DO NOT OVERTIGHTEN THE CONVEYOR BELT.
If necessary, the belt tension can be adjusted by turning the conveyor adjustment screws, located at the idler (right) end of the conveyor.
M. Replace the drive motor shroud and the conveyor extensions.
22
Figure 4-5 - Disassembling the Air Fingers
Manifold
Inner plate
Outer Plate
2
Pull outer plate straight up and off
1
Step on lip of manifold
4
3
Swing ends of inner plate and manifold apart
Pull inner plate upwards, and then away from manifold
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Table of contents
- 4 SECTION 1 - DESCRIPTION
- 4 OVEN USES
- 4 II. OVEN COMPONENTS
- 4 A. Crumb Pans
- 4 B. Conveyor Drive Motor
- 4 C. Conveyor
- 4 D. End Plugs
- 4 E. Serial Plate
- 4 F. Window
- 4 G. Machinery Compartment Access Panel
- 4 H. Control Compartment Access Panel
- 4 Control Panel
- 4 J. Eyebrows
- 4 K. Conveyor End Stop
- 4 L. Gas Burner
- 4 M. Blowers
- 4 N. Air Fingers
- 4 III. OVEN SPECIFICATIONS
- 4 A. Dimensions
- 5 B. General Specifications
- 5 C. Gas Orifice and Pressure Specifications
- 5 D. Electrical Specifications - Gas Ovens
- 5 E. Electrical Specifications - Electric Ovens
- 6 SECTION 2 - INSTALLATION
- 7 INSTALLATION KIT
- 7 A. Components
- 7 B. Additional Components - Gas Ovens
- 7 C. Additional Components - Tandem Ovens
- 8 II. VENTILATION SYSTEM
- 8 A. Requirements
- 8 B. Recommendations
- 8 C. Other Ventilation Concerns
- 9 III. ASSEMBLY
- 9 A. Stacking
- 9 B. Stands
- 9 IV. THERMOCOUPLE INSTALLATION
- 10 V. TANDEM OVEN ASSEMBLY
- 12 VI. CONVEYOR INSTALLATION
- 12 A. All Non-Tandem Ovens
- 13 B. Tandem Oven Models
- 13 VII. FINAL ASSEMBLY
- 14 VIII. ELECTRICAL SUPPLY
- 14 A. Electric Ovens
- 14 B. Gas Ovens
- 14 C. Ovens with External Transformers
- 14 D. Connection
- 15 IX. GAS SUPPLY
- 15 A. Gas Utility Rough-In Recommedations
- 15 B. Connection
- 15 C. Gas Conversion
- 16 SECTION 3 - OPERATION
- 16 A. BLOWER ( ) Switch
- 16 ) Switch
- 16 D. Conveyor Speed Controller
- 16 E. Digital Temperature Controller
- 16 F. Machinery Cpt. Access Panel Safety Switch
- 17 II. NORMAL OPERATION, STEP-BY-STEP
- 17 A. Daily Startup Procedures
- 17 B. Daily Shutdown Procedures
- 19 IV. QUICK REFERENCE: TROUBLESHOOTING
- 20 SECTION 4 - MAINTENANCE
- 21 MAINTENANCE - DAILY
- 22 II. MAINTENANCE - MONTHLY
- 23 III. MAINTENANCE - EVERY 3 MONTHS
- 23 IV. MAINTENANCE - EVERY 6 MONTHS
- 24 V. KEY SPARE PARTS KIT