Manitowoc Published 11-06-15, Control # 040-13 4-17
2250 SERVICE/MAINTENANCE MANUAL BOOM
Elongated Hole
See Figure 4-19 for the following procedure.
1. Insert pin into hole.
2. Push pin tight against edge of hole along horizontal
center line. Measure dimension between pin and hole
(View A).
3. Push pin tight against edge of hole along vertical center
line. Measure dimension between pin and hole (View B).
If dimensions A and B are not identical, hole is
elongated. Remove strap from service.
If two dimensions are identical, but greater than 0.030 in
(0,8 mm), contact the Manitowoc Crane Care Lattice
Team.
Length
See Figure 4-20 for the following procedure.
Pin
Strap
Pin
Strap
B
View A
View B
A
A1086
Elongated Holes
FIGURE 4-19
Strap Length
(L)
ft (m)
Maximum Deviation Allowed
1 to <2 in (25,4 to
<50,8 mm) Thick
2 to <4 in (50,8 to
<101,6 mm) Thick
<3 (<0,9) 0.17 (4,3) 0.50 (12,7)
3 to <4
(0,9 to <1,2)
0.63 (15,9) 0.56 (14,3)
4 to <5
(1,2 to <1,5)
0.75 (19,1) 0.70 (17,5)
5 to <6
(1,5 to <1,8)
0.80 (20,6) 0.75 (19,1)
6 to <7
(1,8 to <2,1)
0.88 (22,2) 0.75 (19,1)
7 to <8
(2,1 to <2,4)
0.94 (23,8) 0.75 (19,1)
8 to <9
(2,4 to <2,7)
1.0 (25,4) 0.75 (19,1)
9 to <10
(2,7 to <3,0)
1.0 (25,4) 0.88 (22,2)
10 to <12
(3,0 to <3,7)
1.0 (25,4) 1.0 (25,4)
≥12 (≥3,7)
Deviation not to exceed 1 in (25,4 mm)
in any 12 ft (3,7 m) length of strap
< = less than
≥ = equal to or greater than
Measure to check length. See appropriate Rigging Drawing
in Operator Manual for original length. Strap length
includes connecting link. If change in length is detected,
remove strap from service
.
Length
Strap
Link
A1086
FIGURE 4-20
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