Cornell SGH Series - DRIVE CHAIN ADJUSTMENT

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7
SGH Series
REVISION # 0002
DATE: 10/09/2012
DRIVE CHAIN ADJUSTMENT
NOTE: Use correct type, size and proper length of roller chain.
1. Adjust the drive chain by tilting or move the operator so that there is about 1/4” of slack when the
chain is depressed.
Note: The set screw included in the operator may be used for adjustment. (See figure 1- S1 location for
1/2hp and 3/4hp), (See figure 2 - T1, T2, T3, T4 for 1hp and 1½hp).
2. Once the drive chain has been tightened and the base leg screws have been set, and then tighten the
operator screws.
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S1
Drive Chain
Door Sprocket
Drive Sprocket
1/4"
S1
Drive Chain
Door Sprocket
Drive Sprocket
1/4"
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(Figure 1 for 1/2hp and 3/4hp)
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Drive Chain
Door Sprocket
Drive Sprocket
1/4"
T1
T2
Drive Chain
Door Sprocket
Drive Sprocket
1/4"
T3
T4
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(Figure 2 for 1hp and 1½hp)