Table 5-6 Top Hook & Bottom Hook Dimensions
Dimensions K and U should be measured and recorded below prior to any use when the hook is first placed into service.
Recorded Dimension When New
Maximum/Minimum Value
for Replacement
Top Hook K = _______________
Top Hook U = _______________
Bottom Hook K = ____________
Bottom Hook U = ____________
For K if the measured dimension
exceeds 1.05 times the recorded new
dimension, the hook should be
replaced.
For U if the measured dimension is
less than .9 times the recorded new
dimension, the hook should be
replaced.
Top Hook K = _______________
Top Hook U = _______________
Bottom Hook K = ____________
Bottom Hook U = ____________
Top Hook K = _______________
Top Hook U = _______________
Bottom Hook K = ____________
Bottom Hook U = ____________
Top Hook K = _______________
Top Hook U = _______________
Bottom Hook K = ____________
Bottom Hook U = ____________
Table 5-7 Chain Dimensions
Std Nominal Dimension Inch (mm)
Maximum Value for Replacement
Inch (mm)
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