631G Wheel Tractor-Scraper

Overview & Specifications

Engine

Tractor Engine

3408E

3408E

Tractor Engine

Gross Power - Gears 1-2

480 hp

358 kW

Gross Power - Gears 3-8

515 hp

384 kW

Net Power - Gears 1-2

450 hp

336 kW

Net Power - Gears 3-8

490 hp

365 kW

Caterpillar Net Power

490 hp

365 kW

ISO 9249

490 hp

365 kW

EEC 80/1269

490 hp

365 kW

SAE J1349

490 hp

365 kW

Bore

5.4 in

137 mm

Stroke

6 in

152 mm

Displacement

1099 in3

18 L

Scraper Bowl

Scraper Capacity: Heaped

31 yd3

23.7 m3

Rated Load

75000 lb

34020 kg

Capacity Struck

21 yd3

16.1 m3

Depth of Cut - max.

17 in

437 mm

Width of Cut, to Router Bits

138.25 in

3512 mm

Ground Clearance - max.

21.5 in

545 mm

Cutting Edge - thickness

1.62 in.

42 mm

Hyd. Penetration Force - 621G

57375 lb

255 kN

Depth of Spread - max.

18.9 in

480 mm

Apron Opening

79 in

2007 mm

Apron Closure Force

38250 lb

170 kN

Transmission

1 Forward

2.9 mph

4.7 km/h

2 Forward

5.2 mph

8.4 km/h

3 Forward

7.4 mph

11.9 km/h

4 Forward

10 mph

16.1 km/h

5 Forward

13.4 mph

21.6 km/h

6 Forward

18.2 mph

29.3 km/h

7 Forward

24.5 mph

39.4 km/h

8 Forward

33.2 mph

53.5 km/h

Reverse

6.2 mph

9.9 km/h

Hydraulics

Bowl Cylinder Bore

7.2 in

184 mm

Bowl Cylinder Stroke

34.4 in

813 mm

Apron Cylinder Bore

8.2 in

210 mm

Apron Cylinder Stroke

28.6 in

727 mm

Ejector Cylinder Bore

8.3 in

210 mm

Ejector Cylinder Stroke

74 in

1880 mm

Steering Circuit

103 gal/min

389 L/min

Scraper Circuit

91 gal/min

344 L/min

Cushion Hitch Circuit

9 gal/min

34.5 L/min

Secondary Steering Circuit

77 gal/min

291 L/min

Relief Valve - Steering Circuit

1987 psi

13700 kPa

Relief Valve - Implement Circuit

2030 psi

14000 kPa

Compensator Setting - Cushion Hitch Circuit

2320 psi

16000 kPa

Steering

Width - 180° Turn

40.08 ft

12.2 m

Steering Angle – Right

90°

90°

Steering Angle – Left

85°

85°

Hydraulic Output

96.2 gal/min

370 L/min

Ground-Driven Secondary Steering System

51 gal/min

192 L/min

Service Refill Capacities – Tractor

Crankcase

11.7 gal

45 L

Transmission

33 gal

127 L

Differential

36 gal

136 L

Final Drive (per side)

7 gal

25 L

Cooling System

32 gal

122 L

Hydraulic Reservoir

50 gal

190 L

Wheel Coolant (each)

19.5 gal

75 L

Windshield Washer

6 gal

1.5 L

Dimensions

Width - overall machine

155 in

3938 mm

Width - tractor

137 in

3481 mm

Width - rear tire center lines

97 in

2464 mm

Width - inside of bowl

134 in

3405 mm

Height - overall shipping

167.75 in

4286 mm

Height - top of cab

146.25 in

3715 mm

Height - scraper blade max.

21.5 in

545 mm

Wheelbase

345.25 in

8769 mm

Length - overall machine

573.4 in

14565 mm

Weights - Standard, tandem

Total Shipping

100006 lb

45362 kg

Tractor Shipping

46002 lb

20866 kg

Scraper Shipping

54004 lb

24496 kg

Total Operating - empty

102460 lb

46475 kg

Front Axle

68648 lb

31138 kg

Rear Axle

33812 lb

15337 kg

Total Operating - loaded

177460 lb

80495 kg

Front Axle Weight - loaded

94054 lb

42662 kg

Rear Axle Weight - loaded

83406 lb

37833 kg

Weights

Operating Weight

102460 lb

46475 kg

Standards

ROPS / FOPS

Meets SAE J320a, SAE J1040 MAY 94, and ISO 3471-1994

Meets SAE J320a, SAE J1040 MAY 94, and ISO 3471-1994

Brakes

Meets ISO 3450: 1996 standard

Meets ISO 3450: 1996 standard