
Reference
Only
BOOM
18000 SERVICE/MAINTENANCE MANUAL
4-10
Published 12-05-17, Control # 035-23
Replacement Specifications
Any strap not within specifications listed in
must be
replaced.
Table 4-3
Strap Specifications
Corrosion Or Abrasion
For quick identification by repair workers, clearly mark
damaged areas with brightly colored tape.
1.
Sandblast to remove corrosion.
Do not grind!
2.
Determine reduction in thickness.
3.
If reduction is less than 6% of strap thickness, paint
strap to maintain continuous protective coating.
4.
If reduction is 6% or more, remove strap from service.
WARNING
If da mage t o s tra p e xc eed s t ha t a llowed with in
specification, do not operate crane until strap has been
replaced.
Operating crane with a damaged strap can cause
structural failure or collapse of boom, jib, mast, or other
crane components.
Condition
Reference
Allowable
Tolerance or
Deviation
Corrective Action
Dent
<
0.12 in
(3,175 mm)
Monitor condition.
≥
0.12 in
(3,175 mm)
Remove strap from
service.
Kink
None
Remove strap from
service.
Crack or
Break
None
Remove strap from
service.
Corrosion or
Abrasion
<
6% of strap
thickness
Sandblast and paint to
maintain continuous
protective coating.
≥
6% of strap
thickness
Remove strap from
service.
Straightness
(gradual or
sweeping
bend)
Varies
depending on
strap length
Remove strap from
service if deviation
exceeds maximum
allowed.
Flatness
(includes
twisted
straps)
Varies
depending on
strap length.
Remove strap from
service if deviation
exceeds maximum
allowed.
Elongated
Holes
None
Remove strap from
service.
Length
None
Remove strap from
service.
<
= less than
≥ =
equal to or greater than
FIGURE 4-9
Dent
Dent
Depth
of Dent
A1086
FIGURE 4-10
Kink
Kink
Do not straighten or bend into
alignment. Remove from service.
A1086
FIGURE 4-11
Crack Or Break
Do not weld. Strap cannot be
repaired. Remove from service.
Crack or
Break
A1086
Summary of Contents for 18000
Page 1: ...R e f e r e n c e O n l y Service Maintenance Manual Manitowoc 18000 ...
Page 2: ...R e f e r e n c e O n l y ...
Page 4: ...R e f e r e n c e O n l y THE ORIGINAL LANGUAGE OF THIS PUBLICATION IS ENGLISH ...
Page 210: ...R e f e r e n c e O n l y NOTES SKETCHES AND PHOTOGRAPHS ...
Page 315: ...R e f e r e n c e O n l y ...
Page 316: ...R e f e r e n c e O n l y ...