Manitowoc National Crane NBT40-1 Series User Manual

SAFETY PRECAUTIONS - CRANE NBT40-1 SERIES OPERATOR MANUAL
2-38
3-29-2018 Control # 610-00
Table 2-8: Boom Drift Chart (Cylinder length change in inches)
Table 2-9 Boom Drift Chart (Cylinder length change in millimeters)
OVERLOAD INSPECTION
This information supplements the Rated Capacity Limiter
(RCL) manual supplied with each National Crane.
When the RCL system has acknowledged an overload
on your equipment, you must carry out specified
inspections on the equipment.
These inspections apply only to overloads up to 50%. For
overloads of 50% or higher, equipment operation must
be stopped immediately and Crane Care must be
contacted for corrective action.
The following illustrations may not be an exact
representation of your equipment and are to be used for
reference only.
Coeff. = 0.00043
(in
3
/in
3
/ °F)
STROKE Temperature Change (°F)
(FT.)102030405060708090100
5 0.260.520.771.031.291.551.812.062.322.58
10 0.52 1.03 1.55 2.06 2.58 3.10 3.61 4.13 4.64 5.16
15 0.77 1.55 2.32 3.10 3.87 4.64 5.42 6.19 6.97 7.74
20 1.03 2.06 3.10 4.13 5.16 6.19 7.22 8.26 9.29 10.32
25 1.29 2.58 3.87 5.16 6.45 7.74 9.03 10.32 11.61 12.90
30 1.55 3.10 4.64 6.19 7.74 9.29 10.84 12.38 13.93 15.48
35 1.81 3.61 5.42 7.22 9.03 10.84 12.64 14.45 16.25 18.06
40 2.06 4.13 6.19 8.26 10.32 12.38 14.45 16.51 18.58 20.64
45 2.32 4.64 6.97 9.29 11.61 13.93 16.25 18.58 20.90 23.22
50 2.58 5.16 7.74 10.32 12.90 15.48 18.06 20.64 23.22 25.80
55 2.84 5.68 8.51 11.35 14.19 17.03 19.87 22.70 25.54 28.38
60 3.10 6.19 9.29 12.38 15.48 18.58 21.67 24.77 27.86 30.96
Length change in inches = Stroke (Ft.) X Temperature Change ( °F) X Coeff. (in
3
/in
3
/ °F) X 12 in/ft
Coeff. = 0.000774
(1/ °C)
STROKE Temperature Change (°C)
(m) 5 10 15 20 25 30 35 40 45 50 55
1.5 6 12 17 23 29 35 41 46 52 58 64
3 1223354658708193104116128
4.5 17 35 52 70 87 104 122 139 157 174 192
6 23 46 70 93 116 139 163 186 209 232 255
7.5 29 58 87 116 145 174 203 232 261 290 319
9 35 70 104 139 174 209 244 279 313 348 383
10.5 41 81 122 163 203 244 284 325 366 406 447
12 46 93 139 186 232 279 325 372 418 464 511
13.5 52 104 157 209 261 313 366 418 470 522 575
15 58 116 174 232 290 348 406 464 522 581 639
16.5 64 128 192 255 319 383 447 511 575 639 702
18 70 139 209 279 348 418 488 557 627 697 766
Length change in mm = Stroke (m) X Temperature Change ( °C) X Coeff. (1/ °C) X 1000 mm/m
Metric

Manitowoc National Crane NBT40-1 Series Specifications

General

Brand	Manitowoc
Model	National Crane NBT40-1 Series
Category	Construction Equipment
Language	English