Middleby Marshall PS314SBI English, 10- Drive Motor and Drive Chain, 11- Conveyor belt tension

3.Install the drive chain between the conveyor drive sprocket and the motor sprocket as shown in Figure 2-10. Then, check the tension of the drive chain. The chain should have a 1/2" (13mm) deflection.

If necessary, the motor can be repositioned to allow the chain to be installed, or to correct the tension of the chain after it is in place. To reposition the motor:

•Loosen the two hex head screws that fasten the conveyor motor's mounting bracket to the oven. The screws are shown in Figure 2-10.

•Raise or lower the motor slightly, as required. Tighten the two hex screws, and check the chain tension.

•Repeat these steps as necessary until the drive chain has the correct 1/2" (13mm) deflection.

4.Check the tension of the conveyor belt at the IDLER (right) end of the conveyor, by lifting the center of the belt straight up with your fingers as shown in Figure 2-11. The belt should lift between 2-3" (50-75mm). DO NOT OVER-

TIGHTEN THE CONVEYOR BELT.

NOTE:

If necessary, the belt tension can be adjusted by turning the conveyor adjustment screws, located at the idler (right) end of the conveyor. See Figure 2-11.

5.Check for freedom of movement of the conveyor belt by pulling it for about 2-3 feet (60 to 90 cm) with your fingers. The conveyor must move freely.

6.If necessary, links can be added to or removed from the conveyor belt to achieve the correct deflection of 2-3" (50- 75mm). If links must be removed from the belt, it can be reattached to the conveyor as follows:

a.The conveyor belt links must be oriented as shown in Figure 2-12.

b.The smooth side of the conveyor belt must face UP.

c.Connect the inside master links. Check that the links are oriented as shown in Figure 2-12.

d.Connect the outside master links. Note that the outside master links have right and left sides. The right-side master link has an open hook facing you, as shown in Figure 2-12.

e.Return to Step 4, above, to re-check the belt tension.

SECTION 2 - INSTALLATION

Figure 2-10 - Drive Motor and Drive Chain

Drive chain ENGLISH

Motor

Loosen hex screws and slide motor up or down to adjust belt tension

Figure 2-11 - Conveyor belt tension

Lift belt straight

up as shown

Belt deflection
should be 2-3”	Adjust tension by
(50-75mm)	turning screws (2)

Figure 2-12 - Master link orientation

Direction of

travel

Correct outside

master link orientation

CORRECT inside master	INCORRECT inside master
link orientation	link orientation

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