Adjustment of Chain Tension for Flow Conveyor
F Type Flow Conveyor Proper chain tension for the U.S. Tsubaki F Type Flow Conveyor can be determined using the following formulas. Where: h = amount of chain slack just behind the head sprocket L = distance between the sprocket and take-up 1. When material to be conveyed is within a normal temperature range: h = 0.1250 X L 2. When material to be conveyed has a high temperature range: h = 0.0625 X L To adjust chain slack, it is best to have two people working as a team: one to observe the chain slack at the head section and the other to adjust take-up at the tail section. Adjustments should be made for normal load conditions.
Figure 14-2: Measuring Chain Slack
L Type and S Type Flow Conveyors Chain tension for U.S. Tsubaki L Type and S Type Flow Conveyors is adjusted by inspecting the chain slack through the inspection door located at the side of the curved section of the casing. Chain slack should be adjusted so that it is at the center of the curved section. Too much tension will cause the chain to rub against the casing, and excessive slack can cause the chain to tangle and break. Proper chain slack can be determined using the following formulas. Where: a = distance from the centerline of the chain to the casing L = distance from the casing to the rail 1. When material to be conveyed is within a normal temperature range: a = 0.5000 X L 2. When material to be conveyed has a high temperature range: a = 0.2500 X L
Figure 14-3: Chain Slack for L Type and S Type Flow Conveyors
RF C ONVEYOR C HAIN I NSTALLATION AND L AYOUT 25
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