Loading Door Switch

Loading door switch is factory preset, no field adjustment is necessary.

Loading Door Catch

The door catch must be adjusted to have sufficient tension to hold loading door closed against force of load tumbling against it. Proper adjustment is when 8 to

15 pounds (35.6 N – 66.7 N) pull is required to open door.

If adjustment is required, refer to Figure 27 and proceed as follows:

To adjust, open door, loosen acorn nut and turn door strike screw in or out as required. Tighten acorn nut.

1

2

3

T048I

1Door Latch

2Door Catch

3Acorn Nut

Figure 27

Adjustments

Drive Belt

Nonreversing Models

Refer to Figure 28.

Proper tension is when the drive V-belt can be depressed approximately 0.5 inch (13 mm) by applying light thumb pressure at a point midway between the sheave and motor pulley.

1.Remove guard from rear of tumbler.

2.To adjust belt tension, loosen idler housing bolts holding idler housing assembly to the guide rails.

3.Position housing assembly by turning adjusting bolt until proper belt tension is reached, then retighten idler housing bolts.

4.Replace the guard on rear of tumbler.

Reversing Models

Refer to Figure 29.

Proper tension is when the drive belt can be depressed approximately 0.5 inch (13 mm) by applying light thumb pressure (approximately 5 pounds [0.35 bar]) at a point midway between the sheave and motor pulley.

Proper tension is when each cylinder belt can be depressed approximately 0.19 inch (5 mm) by applying light thumb pressure (approximately 5 pounds

[0.35 bar]) at a point midway between the sheave and the idler.

1.Remove guard from rear of tumbler.

2.To adjust cylinder belt tension, loosen idler housing bolts holding idler housing assembly to the guide rails.

3.Position housing assembly by turning adjusting bolt until proper belt tension is reached, then retighten idler housing bolts.

NOTE: Adjusting the cylinder belt tension will change the drive tension. Drive belt tension must also be adjusted.

4.Loosen the locking bolt.

5.Loosen the adjusting nut and use the adjusting screw to move the motor up or down.

6.Once proper belt tension is reached, retighten the adjusting nut and locking bolt.

7.Replace the guard on rear of tumbler.

M414905

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