Adjustments
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
•Disconnect electric power to the tumbler before servicing.
•Close gas
•Close steam valve to steam tumbler before servicing.
•Never start the tumbler with any guards/ panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded.
W002
Chain Drive
There is proper tension when the chain can be depressed approximately 1/2 inch (13 mm) by applying light thumb pressure at a point midway between the cylinder and drive sprocket.
IMPORTANT: After a tumbler has been in operation over an extended period of time, a “High Point” will develop on the cylinder drive sprocket through use and wear. Turn the sprocket manually with drive chain in place until this “high point” is at the top center. The “high point” can be found by noticing increased chain tensionwhile slowly rotating the cylinder sprocket manually.
Nonreversing Models
Refer to Figure 23.
1.Remove guard from rear of tumbler.
2.Adjust belt first.
3.To adjust chain tension, loosen jam nut holding idler sprocket to housing.
4.Move idler sprocket left or right until proper chain tension is reached, then retighten the jam nut.
5.Replace the guard on rear of tumbler.
Reversing Models
Refer to Figure 24.
1.Remove drive guard.
2.To adjust chain tension, loosen nut on idler housing attaching bolt. Move entire idler housing assembly up or down in the guide rails to change tension.
3.When chain tension is correct, tighten idler housing attaching bolt. Hold idler housing firmly in position while tightening nut on attaching bolt.
4.Check chain tension after tightening nut on idler housing attaching bolt.
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