Harrington Hoists and Cranes RH Wire Rope Hoist - Manual (Page 50)

50
Table 5-6 Bottom Hook Dimensions
g1 Measured When New:
_____________________
Hook Identifier
(10th Character of
the Hoist Product
Code)
Nominal
"g1"
Dimension*
inch (mm)
"u" Dimension
inch (mm)
"t" Dimension
inch (mm)
Standard Discard Standard Discard
A or B (2 Falls) 1.50 (38) 1.46 (37) 1.39 (35.2) 1.14 (29) 1.08 (27.6)
C or D (4 Falls) 1.77 (45) 1.89 (48) 1.80 (45.6) 1.50 (38) 1.42 (36.1)
E or F (2 Falls) 1.77 (45) 1.89 (48) 1.80 (45.6) 1.50 (38) 1.42 (36.1)
G or H (4 Falls) 1.97 (50) 2.28 (58) 2.17 (55.1) 1.77 (45) 1.68 (42.8)
J or K (2 Falls) 1.97 (50) 2.28 (58) 2.17 (55.1). 1.77 (45) 1.68 (42.8)
L or M (4 Falls) 2.48 (63) 2.95 (75) 2.81 (71.3) 2.36 (60) 2.24 (57)
N or P (2 Falls) 2.48 (63) 2.95 (75) 2.81 (71.3) 2.36 (60) 2.24 (57)
Q or R (4 Falls) 3.54 (90) 4.17 (106) 3.96 (100.7) 3.35 (85) 3.18 (80.8)
* These values are nominal since the dimension is not controlled to a tolerance. The "g1"
dimension should be measured when the hook is new - this becomes a reference measurement.
Subsequent measurements are compared to this reference to make determinations about hook
deformation/stretch. See Section 5.7, “Hooks - Stretch”.