SAFETY INFORMATION 1400A OPERATOR’S MANUAL
2-24
Published 12-21-2012 Control # 103-06
Table 2-2: Boom Drift Chart (Cylinder length change in inches)
Table 2-3Boom Drift Chart (Cylinder length change in millimeters)
OVERLOAD INSPECTION
This information supplements the Rated Capacity Limiter
(RCL) manual supplied with each Grove crane.
When the RCL system has acknowledged an overload on
your crane, you must carry out specified inspections on the
crane.
These inspections apply only to overloads up to 50%. For
overloads of 50% or higher, crane operation must be
stopped immediately and Crane Care must be contacted for
corrective action.
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
STROKE Temperature Change (°C)
(m) 5 10 15 20 25 30 35 40 45 50 55
1.5 5.81 11.61 17.42 23.22 29.03 34.83 40.64 46.44 52.25 58.05 63.86
3 11.61 23.22 34.83 46.44 58.05 69.66 81.27 92.88 104.49 116.10 127.71
4.5 17.42 34.83 52.25 69.66 87.08 104.49 121.91 139.32 156.74 174.15 191.57
6 23.22 46.44 69.66 92.88 116.10 139.32 162.54 185.76 208.98 232.20 255.42
7.5 29.03 58.05 87.08 116.10 145.13 174.15 203.18 232.20 261.23 290.25 319.28
9 34.83 69.66 104.49 139.32 174.15 208.98 243.81 278.64 313.47 348.30 383.13
10.5 40.64 81.27 121.91 162.54 203.18 243.81 284.45 325.08 365.72 406.35 446.99
12 46.44 92.88 139.32 185.76 232.20 278.64 325.08 371.52 417.96 464.40 510.84
13.5 52.25 104.49 156.74 208.98 261.23 313.47 365.72 417.96 470.21 522.45 574.70
15 58.05 116.10 174.15 232.20 290.25 348.30 406.35 464.40 522.45 580.50 638.55
16.5 63.86 127.71 191.57 255.42 319.28 383.13 446.99 510.84 574.70 638.55 702.41
18 69.66 139.32 208.98 278.64 348.30 417.96 487.62 557.28 626.94 696.60 766.26
Len
th chan
e in mm = Stroke
m
X Temperature Chan
e
°C
X Coeff.
1/ °C
X 1000 mm/m
WARNING
Overload Hazard!
To avoid an accident caused by overload damage to your
crane:
• Perform the inspections outlined in this publication
for overloads up to 50%.
• Stop operating the crane and contact Manitowoc
Crane Care immediately for overloads of 50% and
higher.
Reference Only
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