ALL TERRAIN HYDRAULIC CRANE

•••••••••••••••••••••

Courtesy of Crane.Market
 Dimensions 17'6"
(5340)
28'6"
(8700)
11'
(3360)

95)
(11440'6"
)

(49
(106805'
R 37

)
Ra 3

"
6'5

0)
R1

7
42
Ra 34'9"

' (
(11580)
R 38'
3'2"

14
(10590)
(960)

R
9'
(2740)

10' 19'8"
(3070) (6000)

16'1" 27'11"
(4900) (8500)

R4
4

0)
Ra ' 3 " (1

95
5)
R4
39'

35
350

17 " (6
2" 0) R a 3'7"

(5
(1 38 (1 R

Ra 2'10
194
' 6 " 3280 R 38'

'7"
0)
(11 ) a 3 8" (

R2
74 3 ' 7 117
0)
" 90
(10 )
24 16'3" 12'3"
0)
(4960) (3740)
28'6"
(8700)

53'11"
(16422)
47'5"/44'3"
(14460)/(13500)
12'11" 13'11"
(3925) (4230)
8'6" 3'
(2800) (917)

13'1"
(4000)
+61/2" (170)
-5" (130)
5'11"
(1808)
18°

17°
3'11" 8' 5'7" 5'7" 4'11" 5'5" 7'101/2" 5'5" 4'11" 1' 10"
(1200) (2440) (1700) (1700) (1500) (1650) (2400) (1650) (1500) (565)
16'11" 11'7"
(5150) (3550)
1'4"
(400)
49'7"
(15105)

Note: ( ) Reference dimensions in mm

BASIC WEIGHTS (LBS.) Axles 1& 2 Axles 3 - 6 Total
With Cummins Power, 20.5 R25 Tires 37,535 105,849 143,384
With Mercedes Power, 20.5 R25 Tires 38,370 102,368 140,739
Additions:
Outrigger Pads 0 772 772
Auxiliary Hoist -(3,283) 7,009 3,726
Additional Hydraulic Oil Cooler (Standard) -(55) 143 88
Brackets & Hydraulic Reeling Drum for Lattice Extension 397 110 507
Lattice Extension - 43/72 ft 3,704 1,587 5,291
Spare Tire - 14.00 R25 -(425) 1,010 584
Spare Tire - 16.00 R25 -(522) 1,239 717
Spare Tire - 20.5 R25 -(593) 1,402 809
Boom Removal Equipment (Standard) 53 212 265
Removal:
Front Outrigger Beams & Jacks -(3,377) -(1,980) -(5,357)
Rear Outrigger Beams & Jacks 3,732 -(9,652) -(5,919)
Boom Assembly (minus lift cylinder)* -(20,102) -(24,806) -(44,908)
Lift Cylinder* -(1,457) -(3,018) -(4,475)
16.00 R25 Tires in lieu -(370) -(741) -(1,111)
14.00 R25 Tires in lieu -(899) -(1,799) -(2,698)
Rear Outrigger Box (Cummins only) 6,753 -(17,555) -(10,802)
*Reflects weights with superstructure facing forward

2 GROVE GMK6250
Courtesy of Crane.Market
 Working Range

44 - 197 ft. 138,800 lbs. 100% 360°

(13.5 - 60 m) (63 000 kg)

FEET

220

210

197 FT.
200

190

180

166 FT.
170

160

150

136 FT.
140

130

120

105 FT.
110

100

90 75 FT.

80

70

60

50
44 FT.

40
82°
30 MAX.
BOOM
20 ANGLE

10

190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 FEET

AXIS OF ROTATION

3 GROVE GMK6250
Courtesy of Crane.Market
Superstructure Specifications
Boom Fuel Tank Capacity
44 ft. - 197 ft. (13.5 m - 60 m) six section, full-power 53 gal. (200 L)
boom with patented TWIN-LOCK™ boom pinning
system. Maximum tip height: 207 ft. (63 m) Hydraulic System
Three separate circuits, 2 axial piston variable
Boom Elevation displacement pumps, with electronic power limiting
Single lift cylinder with safety valve provides boom control and 1 axial piston variable displacement
angle from -1.5° to +82°. pump for swing. Standard thermostatically controlled
oil cooler keeps oil at optimum operating
Lattice Extension temperature.
43 ft. - 72 ft. (13 m - 22 m) lattice swingaway Tank capacity: 259 gal. (980 L)
extension. Hydraulically offsettable 5° - 40° with
hydraulic luffing. Control System
Full electronic control of all crane movements is
*Optional Lattice Jib Extension accomplished using electrical control levers with
Two 26 ft. (8 m) inserts for use with lattice swingaway automatic reset to zero. Controls are integrated with the
extension to increase length up to 98 ft. (30 m) or LMI and engine management system by CAN-BUS.
125 ft. (38 m).
Hoist
Load Moment & Anti-Two Block Main and auxiliary hoist are powered by axial piston
System variable displacement motor with planetary gear and
Load moment and anti-two block system with brake. “Thumb-thumper” hoist drum rotation indicator
audio/visual warning and control lever lockout alerts operator of hoist movement.
provides electronic display of boom angle, length,
radius, tip height, relative load moment, maximum Main Auxiliary
permissible load, load indication and warning of
Line length: 984 ft. 755 ft.
impending two-block condition.
(300 m) (230 m)
Cab Rope diameter: 22 mm 22 mm
All aluminum construction cab is tiltable
(approximately 20°) and includes safety glass and Line speed: 426 ft./min. 426 ft./min.
adjustable operator’s seat with hydraulic suspension.
Other features include engine dependent hot water Line pull: 21,000 lbs. 21,000 lbs.
heater, armrest integrated crane controls, and (93.4 kN) (93.4 kN)
ergonomically arranged instrumentation. Electrical System
Swing 24 V system with three-phase alternator 28 V/80 A,
Three swing gears with axial piston fixed 2 batteries 12 V/170 Ah.
displacement motors provide swing speed of 0 - 1.7 *Optional Equipment
RPM thru planetary gear box. Also provided is a *Engine-independent hot water heater, with engine
spring applied, hydraulically released automatic swing pre-heater
brake with foot-operated release for free swing. *Second spotlight
Counterweight *Stereo/cassette player
138,800 lbs. (63 000 kg) consisting of various *Air conditioning
sections with hydraulic installation/removal system *Mercedes-Benz engines
(See counterweight configuration on page 12).

Engine
Cummins 6BTA5.9-C, diesel, 6 cylinders, water-
* Denotes optional equipment
cooled, turbocharged, 165 HP (123 kW) at 2000 rpm.
Max. torque: 538 ft. lbs. (730 Nm) at 1500 rpm.
Engine emission: EUROMOT/EPA/CARB (off
highway)

4 GROVE GMK6250
Courtesy of Crane.Market
Carrier Specifications
Chassis Tires
Box-type, torsion resistant frame is fabricated from 12 tires, 20.5 R25
high-strength steel.
Steering
Outrigger System Dual circuit steering system is hydraulic power
Hydraulic two-stage outrigger beams are extended by assisted with a transfer case mounted, ground driven,
a single hydraulic cylinder and two cables. Outriggers emergency steering pump. Axles 1, 2, 3, 5 and 6 steer
can adjust to two positions: on highway. Separate steering of the 4th, 5th and 6th
Fully extended (100%) - 27 ft. 11 in. (8.5 m) axle for all wheel steer and crab-steer is controlled by
Partially extended (50%) - 19 ft. 8 in. (6 m) an electric rocker switch.
Four 29.5 in. x 32 in. (750 mm x 810 mm), self
stowing, steel outrigger pads provide rigid lifting base. Brakes
Outrigger controls are located on both sides of the A dual circuit air system operates on all wheels with a
carrier. An electronic level indicator is located next to spring-applied, air released parking brake acting on
each outrigger control box. axles 2, 4, 5 and 6. An air dryer is fitted to remove
moisture from the air system.
Engine Auxiliary exhaust brake and constant throttle brake is
Cummins N14-525 E+, diesel, 6 cylinders, water- standard.
cooled, turbocharged, 525 HP (392 kW) at 2100 rpm
Max. torque: 1850 ft. lbs. (2509 Nm) at 1200 rpm Cab
Engine emission: EUROMOT/EPA/CARB (on highway) Two-man, aluminum construction driver’s cab includes
the following features: safety glass; driver and
Fuel Tank Capacity passenger seats with hydraulic suspension, engine-
132 gal. (500 L) dependent hot water heater, complete instrumentation
and driving controls.
Transmission
Allison automatic CLT 755, 5 forward and 1 reverse Electrical System
speed. Transfer case with 2 speeds and inter-axle 24 V system with three-phase alternator 28 V/80 A,
differential lock. 2 batteries 12 V/170 Ah.

Drive/Steer Maximum Speed

12 x 8 x 12 48 mph (77km/h) with 20.5 R25 tires

Axles Gradeability (Theoretical)

6 axles. 1, 2, 4 and 5 are drive/steer. Axles 3 and 6 46% with 20.5 R25 tires
are steer only.
Miscellaneous Standard Equipment
Suspension Boom removal kit; trailing boom kit (less dolly); additional
GMK6250 features the Grove exclusive MEGATRAK™ hydraulic oil cooler; spare tire and wheel - 20.5 R25 with
suspension. This revolutionary design features an carry bracket; flashing amber warning light on carrier
independent hydropneumatic system with hydraulic cab; working light; tool kit; fire extinguisher; rooster
lockout acting on all wheels. The suspension can be sheave; radio cassette in carrier cab.
raised 6-1/2 in. (170 mm) or lowered 5 in. (130 mm)
both longitudinally and transversely and features an * Optional Equipment
automatic leveling system for on-highway travel. * Electric driveline retarder
* 16.00 R25 tires (vehicle width 9 ft. 10 in. [3 m])
* 14.00 R25 tires (vehicle width 9 ft. 9 in. [2.98 m])
* Outrigger pressure measurement devices
* Folding bunk bed in carrier cab
* Engine-independent hot water heater, with engine
pre-heater
* Third seat
* Trailing boom “boost” weight transfer kit
* Air conditioning
* Mercedes-Benz engines
* 12 x 6 x 12 drive

* Denotes optional equipment

GROVE GMK6250 5
Courtesy of Crane.Market
 44 - 197 ft. 154,300 lbs. 100% 360°
(13.5 - 60.0 m) (70 000 kg) 27'11" Spread
Pounds (thousands)

Feet 44* 44 60 75 90 105 121 136 151 166 182 197

8 500.0
9 416.0
10 384.0 404.0 364.0 260.0 189.0
15 306.0 306.0 298.0 260.0 189.0 153.0
20 252.0 252.0 248.0 238.0 189.0 153.0 123.0 96.0
25 209.0 209.0 211.0 203.0 181.0 153.0 123.0 96.0 75.0
30 168.0 168.0 182.0 176.0 173.0 146.0 123.0 96.0 75.0 60.0 47.0
35 153.0 150.0 152.0 134.0 116.0 92.0 75.0 60.0 47.0 40.0
40 130.0 127.0 129.0 123.0 107.0 85.0 75.0 60.0 47.0 40.0
45 110.0 109.0 111.0 113.0 99.0 79.0 71.0 60.0 47.0 40.0
50 95.0 97.0 99.0 93.0 74.0 66.0 57.0 47.0 40.0
55 84.0 87.0 88.0 87.0 69.0 62.0 54.0 47.0 40.0
60 80.0 78.0 80.0 64.0 58.0 51.0 45.0 40.0
65 72.0 70.0 73.0 58.0 53.0 48.0 42.6 39.0
70 65.0 64.0 66.0 55.0 50.0 45.0 40.6 37.4
75 60.0 59.0 60.0 52.0 48.0 43.2 38.8 35.8
80 56.0 55.0 49.0 45.0 40.8 36.8 34.2
85 52.0 51.0 46.0 41.8 38.4 35.0 32.6
90 48.0 47.0 42.8 39.0 36.2 33.0 30.8
95 43.2 39.6 36.2 33.8 31.0 29.2
100 39.8 37.0 33.6 31.6 29.4 27.6
105 35.6 32.0 30.0 28.0 26.4
110 34.2 30.6 28.4 26.6 25.2
115 33.0 29.0 26.6 25.2 23.8
120 27.0 24.6 23.8 22.6
125 25.0 22.6 22.6 21.4
130 23.0 20.8 21.2 20.0
135 21.8 19.2 20.2 19.2
140 18.4 19.2 18.4
145 17.8 18.4 17.8
150 17.2 17.4 17.0
155 16.6 16.2
160 15.6 15.6
165 14.8
170 14.2
175 13.6
180 12.8
†500,000 lbs is a Comparative Rating.
Lifting capacities greater than 350,000 lbs. require additional equipment.
Note: Above chart also available with reduced outriggers.

44 - 197 ft. 97,000 lbs. 100% 360°

(13.5 - 60.0 m) (44 000 kg) 27'11" Spread
Pounds (thousands)

Feet 44* 44 60 75 90 105 121 136 151 166 182 197

8 440.0
9 416.0
10 384.0 404.0 364.0 260.0 189.0
15 306.0 306.0 298.0 260.0 189.0 153.0
20 252.0 252.0 248.0 238.0 189.0 153.0 123.0 96.0
25 195.0 195.0 197.0 194.0 181.0 153.0 123.0 96.0 75.0
30 155.0 155.0 157.0 154.0 156.0 146.0 123.0 96.0 75.0 60.0 47.0
35 130.0 126.0 129.0 131.0 116.0 92.0 75.0 60.0 47.0 40.0
40 111.0 106.0 112.0 111.0 107.0 85.0 75.0 60.0 47.0 40.0
45 96.0 91.0 97.0 95.0 97.0 79.0 71.0 60.0 47.0 40.0
50 77.0 83.0 85.0 84.0 74.0 66.0 57.0 47.0 40.0
55 65.0 72.0 74.0 72.0 69.0 62.0 54.0 47.0 40.0
60 65.0 65.0 63.0 61.0 58.0 51.0 45.0 40.0
65 58.0 57.0 55.0 54.0 53.0 48.0 42.6 39.0
70 52.0 51.0 49.0 50.0 48.0 45.0 40.6 37.4
75 46.0 46.0 43.8 46.0 42.2 42.8 38.8 35.8
80 41.0 41.6 41.2 37.4 38.0 36.8 34.2
85 37.0 38.8 37.0 34.4 33.8 35.0 32.6
90 33.4 35.4 33.4 32.6 30.2 31.4 30.8
95 32.2 30.4 30.8 28.4 28.2 29.2
100 29.4 27.6 28.6 26.8 26.0 26.8
105 25.8 26.0 25.6 24.8 24.2
110 24.6 23.8 24.0 23.4 22.0
115 23.6 21.8 22.0 21.4 20.0
120 20.2 20.2 19.6 18.2
125 19.0 18.6 18.0 16.6
130 18.0 17.0 16.4 15.0
135 17.2 15.8 15.0 13.6
140 14.8 13.8 12.4
145 13.6 12.6 11.2
150 12.6 11.6 10.0
155 10.6 9.0
160 9.6 8.2
165 7.4
170 6.6
175 5.8
180 5.0

†500,000 lbs is a Comparative Rating.

Lifting capacities greater than 350,000 lbs. require additional equipment.
Note: Above chart also available with reduced outriggers.

THIS CHART IS ONLY A GUIDE AND SHOULD NOT BE USED TO OPERATE THE CRANE. The individual crane's load chart, operating instructions and other instructional plates must be read and understood
prior to operating the crane.
6 GROVE GMK6250
Courtesy of Crane.Market
 44 - 197 ft. 49,600 lbs. 100% 360°
(13.5 - 60.0 m) (22 500 kg) 27'11" Spread
Pounds (thousands)

Feet 44 60 75 90 105 121 136 151 166 182 197

10 404.0 364.0 260.0 189.0
15 306.0 298.0 260.0 189.0 153.0
20 220.0 224.0 219.0 189.0 153.0 123.0 96.0
25 167.0 170.0 166.0 161.0 153.0 123.0 96.0 75.0
30 132.0 136.0 127.0 130.0 122.0 118.0 95.0 75.0 60.0 47.0
35 107.0 100.0 104.0 103.0 96.0 89.0 75.0 60.0 47.0 40.0
40 84.0 83.0 90.0 85.0 79.0 73.0 70.0 60.0 47.0 40.0
45 70.0 73.0 73.0 71.0 66.0 66.0 59.0 57.0 47.0 40.0
50 60.0 61.0 60.0 59.0 57.0 51.0 49.0 44.0 40.0
55 51.0 52.0 51.0 53.0 49.0 48.0 45.0 43.2 40.0
60 44.0 46.0 45.0 43.2 43.2 42.2 40.4 37.2
65 38.4 40.6 39.4 38.8 38.2 37.4 35.6 32.6
70 35.2 35.6 34.6 35.6 35.0 33.6 31.4 28.6
75 31.6 31.6 32.0 31.4 31.6 29.8 27.8 25.2
80 27.8 28.8 28.2 28.0 26.6 24.6 22.2
85 24.8 25.6 25.0 24.8 23.4 22.0 19.6
90 22.0 22.8 22.2 22.0 20.6 19.6 17.2
95 20.4 19.8 19.6 18.2 17.4 15.2
100 18.4 17.8 17.4 16.2 15.2 13.2
105 15.8 15.6 14.2 13.4 11.6
110 14.2 14.0 12.6 11.8 10.0
115 12.8 12.4 11.2 10.2 8.8
120 11.0 9.8 8.8 7.4
125 9.8 8.6 7.6 6.2
130 8.8 7.6 6.6 5.2
135 7.8 6.6 5.6 4.2
140 5.6 4.6 3.2
145 4.8 3.8
150 4.0 3.0

Lifting capacities greater than 350,000 lbs. require additional equipment.

Note: Above chart also available with reduced outriggers.

44 - 197 ft. 30,800 lbs. 100% 360°

(13.5 - 60.0 m) (14 000 kg) 27'11" Spread
Pounds (thousands)

Feet 44 60 75 90 105 121 136 151 166 182 197

10 404.0 364.0 260.0 189.0
15 302.0 298.0 260.0 189.0 153.0
20 206.0 209.0 202.0 189.0 153.0 123.0 96.0
25 156.0 160.0 143.0 144.0 134.0 123.0 96.0 75.0
30 115.0 120.0 104.0 113.0 106.0 97.0 89.0 75.0 60.0 47.0
35 90.0 92.0 90.0 84.0 77.0 77.0 68.0 60.0 47.0 40.0
40 71.0 74.0 74.0 69.0 69.0 63.0 59.0 53.0 47.0 40.0
45 56.0 59.0 60.0 58.0 58.0 53.0 52.0 50.0 44.0 40.0
50 49.0 49.0 52.0 49.0 48.0 47.0 43.2 40.4 37.0
55 40.6 43.6 43.6 41.8 41.4 40.2 37.0 34.6 31.4
60 37.0 37.0 38.0 36.4 34.8 32.0 29.6 26.8
65 31.6 31.6 32.6 31.8 30.4 27.8 25.6 22.8
70 27.2 27.0 28.0 27.6 26.6 24.2 22.2 19.6
75 23.4 23..4 24.4 23.8 23.4 21.2 19.2 16.8
80 20.4 21.2 20.6 20.4 18.4 16.8 14.4
85 17.6 18.6 18.0 17.8 16.2 14.4 12.2
90 15.4 16.4 15.8 15.4 14.2 12.6 10.2
95 14.4 13.8 13.4 12.2 10.8 8.6
100 12.6 12.0 11.8 10.4 9.2 7.0
105 10.4 10.2 8.8 7.8 5.6
110 9.0 8.8 7.6 6.4 4.4
115 7.8 7.6 6.2 5.4 3.2
120 6.4 5.2 4.2
125 5.4 4.2 3.2
130 4.6 3.2
135 3.8

Lifting capacities greater than 350,000 lbs. require additional equipment.

Note: Above chart also available with reduced outriggers.

44 - 197 ft. 0 lbs. 100% 360°

(13.5 - 60.0 m) (0 kg) 27'11" Spread
Pounds (thousands)

Feet 44 60 75 90 105 121 136 151 166 182 197

10 404.0 364.0 260.0 189.0
15 270.0 254.0 205.0 180.0 153.0
20 170.0 154.0 132.0 128.0 113.0 98.0 89.0
25 110.0 105.0 99.0 90.0 84.0 76.0 72.0 63.0
30 74.0 73.0 70.0 69.0 63.0 60.0 55.0 51.0 45.0 40.6
35 54.0 54.0 53.0 49.0 47.0 43.2 40.0 35.6 32.0 27.8
40 40.8 41.4 41.6 38.6 37.6 34.6 32.2 28.4 25.4 21.6
45 30.6 33.0 33.6 31.2 30.6 28.2 26.2 23.0 20.2 17.0
50 26.6 27.4 25.6 25.2 23.2 21.6 18.6 16.2 13.2
55 21.0 22.6 21.2 21.0 19.2 17.8 15.0 12.8 10.2
60 18.8 17.4 17.6 15.8 14.6 12.2 10.2 7.6
65 15.4 14.6 12.2 13.0 12.0 9.6 7.8 5.4
70 12.4 12.0 10.2 10.8 9.8 7.6 5.8 3.4
75 10.0 10.0 8.4 8.8 7.8 5.8 4.0
80 8.0 6.8 7.0 6.2 4.2
85 6.2 5.6 5.6 4.8 2.8
90 4.8 4.4 4.2 3.6
95 3.2 3.2
100

Lifting capacities greater than 350,000 lbs. require additional equipment.

Note: Above chart also available with reduced outriggers.

THIS CHART IS ONLY A GUIDE AND SHOULD NOT BE USED TO OPERATE THE CRANE. The individual crane's load chart, operating instructions and other instructional plates must be read and understood
prior to operating the crane.
GROVE GMK6250 7
Courtesy of Crane.Market
 Working Range

121 - 197 ft. 43 - 125 ft. 138,800 lbs. 100% 360°

(36.8 - 60 m) (13 - 38 m) (63 000 kg)

FEET

340
5°
330

+125 F
20°
320
40°

T.
310

+98 FT
300
290

.
280

+72 F
270

T.
260
250
240

+43 F
230

T.
220
210
200
182 FT.
190
180 166 FT.
170
151 FT.
160
150 136 FT.
140
121 FT.
130
120
197 FT.

110
100
90
80
70
60
50
40 82°
MAX.
30 BOOM
20 ANGLE

10

250 240 230 220 210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 FEET
AXIS OF ROTATION

8 GROVE GMK6250
Courtesy of Crane.Market
 197 ft. 43-72-98-125 ft. 154,300 lbs. 100% 360°
(60.0 m) (13-22-30-38 m) (70 000 kg) 27'11" Spread
Pounds (thousands)
43 FT 72 FT 98 FT 125 FT
Feet 5° 20° 40° 5° 20° 40° 5° 20° 40° 5° 20° 40°
40 20.6
45 20.6
50 20.6
55 20.6 19.8 12.6
60 20.6 19.8 12.6 9.8 6.8
65 20.6 19.8 12.6 9.8 6.8
70 20.6 19.8 19.0 12.4 9.8 6.8
75 20.6 19.8 19.0 12.4 11.6 9.8 6.8
80 20.6 19.8 19.0 12.4 11.6 9.8 6.8
85 20.6 19.8 19.0 12.2 11.4 9.8 6.8
90 20.6 19.8 19.0 12.2 11.4 9.8 10.2 6.8 7.2
95 20.6 19.8 19.0 12.0 11.4 10.6 9.8 10.0 6.8 7.2
100 20.6 19.8 18.8 12.0 11.2 10.6 9.8 9.8 8.2 6.8 7.0
105 20.0 19.4 18.6 12.0 11.2 10.4 9.8 9.8 8.2 6.8 7.0 6.6
110 19.4 18.8 18.2 11.8 11.2 10.4 9.8 9.6 8.2 6.8 6.8 6.6
115 18.6 18.2 17.6 11.8 11.0 10.2 9.8 9.4 8.2 6.8 6.6 6.6
120 17.8 17.6 17.2 11.6 11.0 10.2 9.8 9.2 8.2 6.8 6.6 6.4
125 17.0 17.0 16.8 11.6 11.0 10.0 9.6 9.0 8.2 6.8 6.4 6.4
130 16.2 16.4 16.4 11.6 11.0 10.0 9.6 8.8 8.2 6.6 6.4 6.2
135 15.6 15.8 15.8 11.4 10.8 9.8 9.4 8.6 8.2 6.4 6.2 6.2
140 15.0 15.2 15.2 11.4 10.8 9.8 9.2 8.6 8.0 6.4 6.2 6.0
145 14.2 14.6 14.6 11.4 10.8 9.8 9.0 8.4 8.0 6.2 6.0 6.0
150 13.6 13.8 14.0 11.2 10.6 9.8 8.8 8.2 7.8 6.2 5.8 5.8
155 13.0 13.2 13.6 11.2 10.6 9.6 8.6 8.0 7.8 6.0 5.8 5.8
160 12.4 12.6 13.0 11.2 10.4 9.6 8.4 8.0 7.6 5.8 5.6 5.6
165 11.8 12.0 12.4 11.0 10.2 9.6 8.2 7.8 7.4 5.8 5.6 5.6
170 11.4 11.6 11.8 10.6 10.0 9.6 8.0 7.6 7.4 5.6 5.4 5.4
175 10.8 11.0 10.2 9.8 9.4 7.8 7.4 7.4 5.6 5.4 5.2
180 10.4 10.6 9.8 9.6 9.4 7.8 7.4 7.2 5.4 5.2 5.2
185 10.0 10.0 9.4 9.2 9.4 7.6 7.2 7.2 5.4 5.2 5.0
190 9.4 9.6 8.8 9.0 9.4 7.4 7.2 7.0 5.2 5.0 5.0
195 9.0 9.2 8.4 8.8 9.2 7.2 7.0 7.0 5.0 4.8 4.8
200 8.6 8.8 8.2 8.4 9.0 7.0 6.8 6.8 5.0 4.8 4.8
205 8.2 8.4 7.8 8.2 6.6 6.6 6.6 4.8 4.6 4.8
210 8.0 7.4 7.8 6.4 6.4 6.6 4.8 4.6 4.6
215 7.4 7.2 7.4 6.2 6.2 6.4 4.6 4.4 4.6
220 6.8 7.0 5.8 6.0 4.4 4.4 4.4
225 6.4 6.6 5.6 5.8 4.4 4.2 4.4
230 6.2 6.4 5.4 5.6 4.2 4.2 4.2
235 5.8 6.0 5.0 5.4 4.0 4.0 4.2
240 5.6 4.8 5.0 3.8 3.8
245 5.2 4.6 4.8 3.6 3.8
250 4.4 4.4 3.4 3.6
255 4.2 4.2 3.2 3.4
260 4.0 3.2

197 ft. 43-72-98-125 ft. 154,300 lbs. 100% 360°

(60.0 m) (13-22-30-38 m) (70 000 kg) 27'11" Spread

Pounds (thousands)
43 FT 72 FT 98 FT 125 FT
Feet 5° - 20° 20° - 40° 5° - 20° 20° - 40° 5° - 20° 20° - 40° 5° - 20° 20° - 40°
55 19.0
60 19.0
65 19.0
70 18.8 17.4
75 18.8 17.4 10.6
80 18.8 17.4 10.4
85 18.6 17.4 10.4
90 18.6 17.4 10.4 9.2 6.6
95 18.4 17.4 10.2 9.6 9.0 6.4
100 18.0 17.2 10.2 9.6 9.0 7.6 6.4
105 17.6 16.8 10.2 9.4 8.8 7.6 6.2 6.0
110 17.2 16.4 10.2 9.4 8.6 7.6 6.2 6.0
115 16.6 16.0 10.0 9.4 8.6 7.6 6.0 6.0
120 16.0 15.8 10.0 9.2 8.4 7.6 6.0 5.8
125 15.4 15.4 10.0 9.2 8.2 7.6 5.8 5.8
130 15.0 15.0 10.0 9.0 8.0 7.6 5.8 5.6
135 14.4 14.4 9.8 9.0 7.8 7.4 5.6 5.6
140 13.8 13.8 9.8 9.0 7.8 7.4 5.6 5.4
145 13.2 13.4 9.8 8.8 7.6 7.2 5.4 5.4
150 12.6 12.8 9.6 8.8 7.4 7.2 5.4 5.4
155 12.0 12.2 9.6 8.8 7.4 7.0 5.2 5.2
160 11.4 11.8 9.4 8.8 7.2 7.0 5.2 5.2
165 11.0 11.2 9.2 8.8 7.0 6.8 5.0 5.0
170 10.4 10.8 9.0 8.6 7.0 6.8 5.0 5.0
175 10.0 8.8 8.6 6.8 6.6 4.8 4.8
180 9.6 8.6 8.6 6.6 6.6 4.8 4.8
185 9.2 8.4 8.6 6.6 6.4 4.6 4.6
190 8.8 8.2 8.4 6.4 6.4 4.6 4.6
195 8.4 8.0 8.4 6.4 6.4 4.4 4.4
200 8.0 7.8 8.2 6.2 6.2 4.4 4.4
205 7.6 7.4 6.0 6.0 4.2 4.2
210 7.0 5.8 6.0 4.2 4.2
215 6.8 5.6 5.8 4.0 4.2
220 6.4 5.4 4.0 4.0
225 6.0 5.2 4.0 4.0
230 5.8 5.0 3.8 3.8
235 5.4 4.8 3.6 3.8
240 4.6 3.6
245 4.4 3.4
250 4.0 3.2
255 3.8 3.0
260 3.6 3.0

THIS CHART IS ONLY A GUIDE AND SHOULD NOT BE USED TO OPERATE THE CRANE. The individual crane's load chart, operating instructions and other instructional plates must be read and understood
prior to operating the crane.
GROVE GMK6250 9
Courtesy of Crane.Market
 197 ft. 43-72-98-125 ft. 97,000 lbs. 100% 360°
(60.0 m) (13-22-30-38 m) (44 000 kg) 27'11" Spread
Pounds (thousands)
43 FT 72 FT 98 FT 125 FT
Feet 5° 20° 40° 5° 20° 40° 5° 20° 40° 5° 20° 40°
40 20.6
45 20.6
50 20.6
55 20.6 19.8 12.6
60 20.6 19.8 12.6 9.8 6.8
65 20.6 19.8 12.6 9.8 6.8
70 20.6 19.8 19.0 12.4 9.8 6.8
75 20.6 19.8 19.0 12.4 11.6 9.8 6.8
80 20.6 19.8 19.0 12.4 11.6 9.8 6.8
85 20.6 19.8 19.0 12.2 11.4 9.8 6.8
90 20.6 19.8 19.0 12.2 11.4 9.8 10.2 6.8 7.2
95 20.6 19.8 19.0 12.0 11.4 10.6 9.8 10.0 6.8 7.2
100 20.6 19.8 18.8 12.0 11.2 10.6 9.8 9.8 8.2 6.8 7.0
105 20.0 19.4 18.6 12.0 11.2 10.4 9.8 9.8 8.2 6.8 7.0 6.6
110 19.4 18.8 18.2 11.8 11.2 10.4 9.8 9.6 8.2 6.8 6.8 6.6
115 18.6 18.2 17.6 11.8 11.0 10.2 9.8 9.4 8.2 6.8 6.6 6.6
120 17.8 17.6 17.2 11.6 11.0 10.2 9.8 9.2 8.2 6.8 6.6 6.4
125 17.0 17.0 16.8 11.6 11.0 10.0 9.6 9.0 8.2 6.8 6.4 6.4
130 15.6 16.4 16.4 11.6 11.0 10.0 9.6 8.8 8.2 6.6 6.4 6.2
135 14.0 14.8 15.6 11.4 10.8 9.8 9.4 8.6 8.2 6.4 6.2 6.2
140 12.8 13.6 14.2 11.4 10.8 9.8 9.2 8.6 8.0 6.4 6.2 6.0
145 11.6 12.2 12.8 11.4 10.8 9.8 9.0 8.4 8.0 6.2 6.0 6.0
150 10.4 11.0 11.6 11.2 10.6 9.8 8.8 8.2 7.8 6.2 5.8 5.8
155 9.4 10.0 10.4 11.0 10.6 9.6 8.6 8.0 7.8 6.0 5.8 5.8
160 8.4 9.0 9.4 10.0 10.4 9.6 8.4 8.0 7.6 5.8 5.6 5.6
165 7.4 8.0 8.4 9.2 10.2 9.6 8.2 7.8 7.4 5.8 5.6 5.6
170 6.6 7.2 7.4 8.2 9.4 9.6 8.0 7.6 7.4 5.6 5.4 5.4
175 5.8 6.2 7.4 8.4 9.4 7.6 7.4 7.4 5.6 5.4 5.2
180 5.2 5.4 6.6 7.6 8.4 6.8 7.4 7.2 5.4 5.2 5.2
185 4.4 4.8 6.0 6.8 7.6 6.2 7.0 7.2 5.4 5.2 5.0
190 3.8 4.0 5.2 6.0 6.8 5.4 6.4 7.0 5.2 5.0 5.0
195 3.2 3.4 4.6 5.4 6.0 4.8 5.6 6.4 4.8 4.8 4.8
200 2.6 2.8 4.0 4.8 5.2 4.2 5.0 5.6 4.2 4.8 4.8
205 2.2 3.4 4.0 3.6 4.4 5.0 3.6 4.4 4.8
210 2.8 3.4 3.0 3.8 4.2 3.0 3.8 4.6
215 2.4 3.0 2.4 3.2 3.6 2.4 3.2 3.8
220 2.4 2.6 2.6 3.2
225 2.2 2.8

197 ft. 43-72-98-125 ft. 97,000 lbs. 100% 360°

(60.0 m) (13-22-30-38 m) (44 000 kg) 27'11" Spread
Pounds (thousands)
43 FT 72 FT 98 FT 125 FT
Feet 5° - 20° 20° - 40° 5° - 20° 20° - 40° 5° - 20° 20° - 40° 5° - 20° 20° - 40°
55 19.0
60 19.0
65 19.0
70 18.8 17.4
75 18.8 17.4 10.6
80 18.8 17.4 10.4
85 18.6 17.4 10.4
90 18.6 17.4 10.4 9.2 6.6
95 18.4 17.4 10.2 9.6 9.0 6.4
100 18.0 17.2 10.2 9.6 9.0 7.6 6.4
105 17.6 16.8 10.2 9.4 8.8 7.6 6.2 6.0
110 17.2 16.4 10.2 9.4 8.6 7.6 6.2 6.0
115 16.6 16.0 10.0 9.4 8.6 7.6 6.0 6.0
120 16.0 15.8 10.0 9.2 8.4 7.6 6.0 5.8
125 15.4 15.4 10.0 9.2 8.2 7.6 5.8 5.8
130 14.2 15.0 10.0 9.0 8.0 7.6 5.8 5.6
135 12.8 13.6 9.8 9.0 7.8 7.4 5.6 5.6
140 11.6 12.2 9.8 9.0 7.8 7.4 5.6 5.4
145 10.4 11.2 9.8 8.8 7.6 7.2 5.4 5.4
150 9.4 10.0 9.6 8.8 7.4 7.2 5.4 5.4
155 8.6 9.0 9.6 8.8 7.4 7.0 5.2 5.2
160 7.6 8.2 9.2 8.8 7.2 7.0 5.2 5.2
165 6.8 7.2 8.4 8.8 7.0 6.8 5.0 5.0
170 6.0 6.4 7.6 8.4 7.0 6.8 5.0 5.0
175 5.4 6.8 7.6 6.8 6.6 4.8 4.8
180 4.6 6.0 7.0 6.2 6.6 4.8 4.8
185 4.0 5.4 6.2 5.6 6.4 4.6 4.6
190 3.4 4.8 5.6 5.0 5.8 4.6 4.6
195 2.8 4.2 5.0 4.4 5.2 4.4 4.4
200 2.4 3.6 4.2 3.8 4.6 3.8 4.4
205 3.2 3.2 4.0 3.2 4.0
210 2.6 2.8 3.4 2.8 3.4
215 2.2 2.8 2.2 3.0
220 2.4

THIS CHART IS ONLY A GUIDE AND SHOULD NOT BE USED TO OPERATE THE CRANE. The individual crane's load chart, operating instructions and other instructional plates must be read and understood
prior to operating the crane.
10 GMK6250
Courtesy of Crane.Market
 Boom Extension Configurations

m "
(9 9'6
)
2
5°
– 40°

5 "
)
0. '5
m
(1 34
(2 m)
6'7"

(8 m)
26'
(8 m)
26'
(0.5 m)
1'8"

Length (ft.) Intermediate section boom extension make-up

26' 6'7" 34'5" 29'6"
(8 m) (2 m) (10.5 m) (9 m)
43 — 1x 1x —
72 — 1x 1x 1x
98 1x 1x 1x 1x
125 2x 1x 1x 1x

GROVE GMK6250 11
Courtesy of Crane.Market
 Counterweight Configurations
4"
(100) 16'1"
(4900)
6

5
3'9" 7 4 8
(1150)
3

1 2
1. 11,980 lbs. (5 400 kg)

(3055)
R 10'
2. 11,200 lbs. (5 100 kg)

3. 18,700 lbs. (8 500 kg)

R 16'5"
(4995)
4. 24,300 lbs. (11 000 kg)

5. 23,100 lbs. (10 500 kg)

6. 7,700 lbs. (3 500 kg) 5'5"

6
(1650)

7. 28,660 lbs. (13 000 kg)

7'10"
(2400)
8. 28,660 lbs. (13 000 kg)
4'
(1215)
1
2
7'5" 5'4"
7 (2263) 3 8 (1635)
4
5

9'9"
(2980)
Note: () Reference dimensions in mm

1 2 3 4 5 6 7 8
23,100 lbs. X X
30,800 lbs. X X X
49,600 lbs. X X X X
73,800 lbs. X X X X X
97,000 lbs. X X X X X X
141,000 lbs.
154,300 lbs.
X

X
X

X
X

X
X

X
X

X
X

X
*
X
*
X

*NOTE: To utilize 141,000 lb. (64 000 kg) load chart optional counterweights for 7 & 8 may be provided weighing 22,050 lbs.
(10 000 kg) each.

12 GROVE GMK6250
Courtesy of Crane.Market
Rated Lifting Capacities Symbols Glossary
IMPORTANT NOTES:
Frame Steering
WARNING: THIS CHART IS ONLY A GUIDE.
The notes below are for illustration only and
should not be relied upon to operate the crane. Outriggers Transmission
The individual crane's load chart, operating
instructions and other instruction plates must
be read and understood prior to operating
Outrigger Controls Axles
the crane.
1. All rated loads up to 420,000 pounds meet
ANSI/ASME B30.5, Mobile and Locomotive Cranes. Engine Brakes
Testing and development were performed to
SAEJ1063, Cantilevered Boom Crane Structures -
Method of Test and SAEJ765 Crane Stability Test Fuel Tank Capacity Tires
Code.
2. Capacities given do not include the weight of
hook blocks, slings, auxiliary lifting equipment and Electrical System Suspension
load handling devices. Their weights must be added
to the load to be lifted. When more than minimum
required reeving is used, the additional rope weight Drive Rotation
shall be considered part of the load.
3. The machine shall be leveled on a firm supporting
surface. Depending on the nature of the supporting Lights Boom Elevation
surface, it may be necessary to have structural
supports under the outrigger floats to spread the
load to a larger bearing surface.
Cab Swing
4. When either boom length or radius or both are
between values listed, the smallest load shown at
either the next larger radius or next longer or shorter
Boom Counterweight
boom length shall be used.
5. For outrigger operation, outriggers shall be
properly extended with tires raised off the ground Fixed Swingaway
Oil
before operating the boom or lifting loads.

Tele-Swingaway Hydraulic System

† Comparative Rating
A rating designation based upon the premise that
Lattice Extension Hoist
large capacity European cranes are typically (Luffing)
purchased and used as long boom, high reach, long
radius lift cranes, not as heavy lift cranes.
Boom Nose Radius
To provide a GMK 6250 crane with the necessary
equipment to achieve maximum lift capacity will
drastically reduce long boom performance.
Therefore, augmenting lifting equipment is required Boom Extension Boom Length
for buyers who require such capacities.

Speed H Hookblock

Grade Gear

Lattice Extension Luffing Jib

GROVE GMK6250 13
Courtesy of Crane.Market
 Features and Benefits

▲
▲
MEGATRAK™ ECOS (Electronic Crane Operating System)
independent computerized system continuously monitors
suspension and and controls principle crane functions as
all wheel steer programmed by an operator
system allows all
wheels to remain
on the ground at
all times so
stresses and
weight are not
continually
transferred
between axles
▲

MEGAFORM™
incorporates a “U”

▲
shape boom design TWIN-LOCK™ boom
▲

which forms a natural pinning mechanism

EKS4 electronic
cradle position for automatically pins the
load moment
boom sections which sections in position using
indicator operates
eliminates stiffeners two horizontal large
in conjunction
thus reducing weight diameter boom pins
with ECOS
and increasing capacity
continuously
displaying crane
configuration and
load moment
data

Grove Worldwide - World Headquarters

1565 Buchanan Trail East
P.O. Box 21
Shady Grove, Pennsylvania 17256-0021, U.S.A.
Constant improvement and engineering progress make it necessary that we reserve the right to make
specification, equipment, and price changes without notice. Illustrations shown may include optional Tel: (717) 597-8121
equipment and accessories and may not include all standard equipment.
Fax: (717) 597-4062
GROVE® and GROVE LOGO are registered trademarks of GROVE in the U.S. and/or other countries. www.groveworldwide.com
Copyright© 2000 GROVE. All rights reserved.
Form No.: GMK6250 Part No.: 01-176 0901-6M Printed in U.S.A.
Courtesy of Crane.Market
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