Harrington Hoists and Cranes (G)NTH Trolley - Manual (Page 14)

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3.2 Chain
3.2.1

Verify that the load chain is not twisted or tangled prior to operating the hoist.
Make sure the bottom hook on the 2 (NTH020) through the 5 (NTH050) Ton multiple fall hoists is not
capsized. See Figures 3-1 and 3-2. Correct all chain irregularities before conducting the first hoist
operation.
Figure 3-1 Twist in Load Chain – Double Fall Model
Figure 3-2 Capsized Hook and Chain – Double Fall Model