Middleby Marshall PS314SBI installation manual English, III. MAINTENANCE - EVERY 3 MONTHS

7. Disassemble the air fingers as shown in Figure 4-3. 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.

SECTION4-MAINTENANCE

Figure 4-3 - Disassembling the Air Fingers

	CAUTION
	Incorrect reassembly of the air fingers will change the
	baking properties of the oven.
8.	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 17 for cleaning
	precautions.
9.	Reassemble the air fingers. Then, replace them in the
	oven, using the "location code" as a guide.
10.	Replace the end plugs on the oven.
11.	Reassemble the conveyor into the oven.
12.	Reattach the drive chain. If the motor was repositioned to
	allow the chain to be removed, adjust the tension of the
	chain to the proper 1/2" (13mm) deflection. Refer to Step
	3 of the Conveyor Installation instructions (on Page 9).
13.	Check that the conveyor belt has the proper 2-3" (50-75mm)
	deflection. If it is necessary to adjust the tension of the belt,
	refer to Steps 4-6 of the Conveyor Installation instructions
	(on Page 9).
14.	Replace the drive motor shroud and the conveyor extensions.

III. MAINTENANCE - EVERY 3 MONTHS

1.Check that the oven is cool and the power is disconnected, as described in the warning on Page 17.

2.Vacuum both of the blower motors, and their surrounding compartments, using a shop vacuum.

3.Tighten all electrical control terminal screws.

IV. MAINTENANCE - EVERY 6 MONTHS

Manifold

Inner plate

Outer Plate

2

Pull outer plate straight up

and off

1

Step on lip of manifold

ENGLISH

3

Swing ends of inner plate and

manifold apart

4

Pull inner plate upwards, and then away from manifold

1.Check that the oven is cool and the power is disconnected, as described in the warning on Page 17.

2.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.

3.Clean and inspect the burner nozzle and electrode assembly.

4.Check (and clean, if necessary) the oven venting system, including the flue.

5.Check the conveyor drive shaft bushings and spacers. Replace the components if they are worn.

V. MAINTENANCE - EVERY 12 MONTHS

1.Remove the motor shroud and the drive-end conveyor extension cover.

2.Disconnect the drive chain as described in Step 3 of the Monthly Maintenance section (on Page 18).

3.Use a grease gun to lubricate the drive shaft bearings, as shown in Figure 4-4. When lubricating the bearings:

•Use a high-quality NLGI #2, lithium soap grease with petroleum oil, such as Middleby P/N 17110-0015.

•Add the grease slowly until a small bead of grease is present at the seals. AVOID OVERGREASING. Excessive greasing may cause harm to the bearing.

Figure 4-4 - Lubricating the Bearings

Grease fitting

(1 per bearing, 2 total)

4.Manually turn the drive shaft by pulling on the conveyor belt to purge the grease.

5.Wipe off any excess grease on and around the bearings.

6.Reattach the drive chain. If the motor was repositioned to allow the chain to be removed, adjust the tension of the chain to the proper 1/2" (13mm) deflection. Refer to Step 3 of the Conveyor Installation instructions (on Page 9).

7.Replace the motor shroud and conveyor extension cover.

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