Capacity
T/B
1000 lbs
T/B
2000 lbs
T/B
4000 lbs
T/B
These values are nominal since the dimension is not controlled to a tolerance. The "D" 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.
Standard Dimension
Limit Dimension
Wear Standard Dimension
Wear Limit Dimension
C. INSPECTION CLASSIFICATION:
The inspection procedure for hoist in regular service is divided into two general classifications based
upon the intervals at which inspection should be performed. The intervals in turn are dependent upon
the nature of the critical components of the hoist and the degree of their exposure to wear, deterioration
or malfunction. The two general classifications are designated as Frequent and Periodic, with respective
intervals between inspections as defined below.
Table 8-3 Top Hook & bottom Hook Dimensions (Inches)
a
b
1.14
.76
1.30
.91
1.77
1.22
Table 8-4 Chain Wear Dimensions
d
mm
p
mm
c
d
1.02
.76
1.14
.91
1.61
1.22
Ø 6.3
Ø 5.7
19.1
20
EN pg.14
e
g
1.09
0.87
1.56
1.22
1.81
1.50
Ø 7.1
Ø 6.4
20.2
21