GEARENCH U4174 PETOL HYDRA-TORK - Manual (Page 15)

Chain Selection
The following table indicates the chains required for various diameters. The chains are
selected by adding or subtracting sections of chain.
Chain Part Number Diameter Range
151-45-07D 3 – 3 3/4
151-45-09D 3 3/4 – 4 1/2
151-45-11D 4 1/2 – 5 3/8
151-45-13D 5 3/8 – 6 1/4
151-45-15D 6 1/4 – 7
151-45-17D 7 1/16 – 8 1/4
Warning:
Wrong chain selection could result in failure. See chain selection table
above and chain selection guide on the following page.
Tong adjustment
15