Grove Published 3-25-2020, Control # 595-10 2-41
GRT8100 OPERATOR MANUAL SAFETY INFORMATION
Table 2-8: Boom Drift Chart (Cylinder length change in inches)
Table 2-9Boom Drift Chart (Cylinder length change in millimeters)
MODEL SPECIFIC INFORMATION
Crane Stability
The GRT8100 rubber 360° load chart has a minimum radius
of 6 m (19.7 ft) with a load. Without a load, a radius of 4.0 m
(13.1 ft) is safe for 360° on rubber. A radius of less than
4.0 m (13.1 ft) must be avoided on rubber 360° because of
backward stability considerations.
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