Manitowoc MLC300 Service And Maintenance Manual

Reference Only
BOOM MLC300 SERVICE/MAINTENANCE MANUAL
4-10
Published 11-22-17, Control # 257-02
Table 4-3. Strap Flatness
Elongated Hole
See Figure 4-11 for the following procedure.
1. Insert the pin into the hole.
2. Push the pin tight against the edge of the hole along the
horizontal centerline. Measure the dimension between
the pin and the hole (see View A).
3. Push the pin tight against the edge of the hole along the
vertical centerline. Measure the dimension between the
pin and the hole (see View B).
If dimension B is not half of A, the hole is elongated.
Remove the strap from service.
If dimension A is greater than 0,8 mm (0.030 in), contact
the Manitowoc Crane Care Lattice Team.
Strap Length
Check the strap length (Figure 4-12) by measuring pin hole
to pin hole. See the appropriate rigging drawing in the
Operator Manual for the original length. Strap length
includes the connecting link. If a change in length is
detected, remove the strap from service.
Storing the Straps
Straps should be stored in a protected area. If stored in the
open, a protective covering is recommended, especially in a
corrosive environment (chemicals, salt water spray, etc.).
Inspect straps in storage for corrosion monthly. If necessary,
sandblast to remove corrosion and repaint to maintain a
continuous protective surface. If corrosion is not removed,
the strap will need to be removed from service because the
reduction in thickness will exceed the maximum allowed.
A full periodic inspection is required for straps returned to
service from storage.
Strap Length
(L)
m (ft)
Maximum Deviation Allowed
25,4 to <50,8 mm
(1 to <2 in) Thick
50,8 to <101,6 mm
(2 to <4 in) Thick
<0,9 (<3) 4,3 mm (0.17 in) 12,7 mm (0.50 in)
0,9 to <1,2
(3 to <4)
15,9 mm (0.63 in) 14,3 mm (0.56 in)
1,2 to <1,5
(4 to <5)
19,1 mm (0.75 in) 17,8 mm (0.70 in)
1,5 to <1,8
(5 to <6)
20,6 mm (0.80 in) 19,1 mm (0.75 in)
1,8 to <2,1
(6 to <7)
22,2 mm (0.88 in) 19,1 mm (0.75 in)
2,1 to <2,4
(7 to <8)
23,8 mm (0.94 in) 19,1 mm (0.75 in)
2,4 to <2,7
(8 to <9)
25,4 mm (1.0 in) 19,1 mm (0.75 in)
2,7 to <3,0
(9 to <10
25,4 mm (1.0 in) 22,2 mm (0.88 in)
3,0 to <3,7
(10 to <12)
25,4 mm (1.0 in) 25,4 mm (1.0 in)
≥3,7 (≥12)
Deviation not to exceed 25,4 mm (1 in)
in any 3,7 m (12 ft) length of strap
< = less than
≥ = equal to or greater than
A1086
Line
Distance between
Line and Strap
Flatness (includes twisted straps)
FIGURE 4-10
Pin
Strap
Pin
Strap
B
View A
View B
A
A1086
Elongated Holes
FIGURE 4-11
Length
Strap
Link
A1086
FIGURE 4-12

Manitowoc MLC300 Specifications

General

Brand	Manitowoc
Model	MLC300
Category	Construction Equipment
Language	English