Caterpillar 631G Motor Scraper

Weights
Front Axle Weight - Loaded

94054 lb

Operating Weight

102460 lb

Rear Axle - Weight - Loaded

83406 lb

Blade
Height - Scraper Blade Maximum

21.5 in

Cutting Edge Thickness

1.7 in

Engine & Fuel System
Engine Oil Fluid Capacity

11.7 gal

Tractor Engine

3408E

Fuel Capacity

215.1 gal

Fuel Tank - 631g

215.1 gal

Caterpillar Net Power

490 hp

Gross Power

515 hp

Gross Power - Gears 1-2

480 hp

Gross Power - Gears 3-8

515 hp

Net Power - Gears 1-2

450 hp

Net Power - Gears 3-8

490 hp

Net Power - Tractor/Scraper

336 kW (450 hp)

Cooling System

32 gal

Cooling System Fluid Capacity

32 gal

Displacement

1099 cu in

Make

Caterpillar

Model

3408E

Drive System
Brakes

Meets ISO 3450: 1996 standard

Final Drive - Each

7 gal

Relief Valve - Steering Circuit

1987 psi

Secondary Steering Circuit

77 gal/min

Steering Angle - Left

85 degrees

Steering Angle - Right

90 degrees

Steering Circuit

103 gal/min

Operating Specs
Total Operating - Empty

102460 lb

Total Operating - Loaded

177460 lb

Hydraulic System
Hydraulic Output

96.2 gal/min

Hydraulic Reservoir

50 gal

Dimensions, Wheels & Tires
Tire Size

37.50-R35

Wheelbase

28.77 ft in

Width - Outside Rear Tires

143.2 in

Width - Rear Tire Center Lines

97 lb/in

Ground Clearance - Maximum

21.5 in

Ground Clearance - Tractor

26.2 lb/in

Tractor Ground Clearance

2.19 ft in

Overall Width

12.92 ft in

Overall Length

47.78 ft in

Height To Top Of Cab

12.19 ft in

Overall Height

14.07 ft in

Wheel Base

345.25 lb/in

Cab

Meets ANSI, SAE

Rops/Fops

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

Battery & Electrical System
Alternator Supplied Amperage

75 A

Operating Voltage

24 V

Transmission
Transmission

33 gal

Transmission Fluid Capacity

33 gal

Transmission Type

8-speed automatic powershift with electronic control

Max Speed - Forward

33.2 mph

Max Speed - Reverse

6.2 mph

Number Of Forward Gears

8

Number Of Reverse Gears

1

Top Speed - Loaded

33 mph

1 Forward

2.9 mph

2 Forward

5.2 mph

3 Forward

7.4 mph

4 Forward

10 mph

5 Forward

13.4 mph

6 Forward

18.2 mph

7 Forward

24.5 mph

8 Forward

33.2 mph

Reverse

6.2 mph

Technical Specs
Length - Overall Machine

573.4 in

Rear Axle - Rear Of Machine

95.8 lb/in

Width - Inside Of Bowl

134 in

Width - Overall Machine

155 lb/in

Axle To Vertical Hitch Pin

21.6 in

Width - Tractor

137 in

Height - Overall Shipping

167.75 in

Height - Top Of Cab

146.25 lb/in

Iso 9249

490 hp

Eec 80/1269

490 hp

Sae J1349

490 hp

Bore

5.4 lb/in

Stroke

6 lb/in

Differential Fluid Capacity

36 gal

Width - 180 Degrees Turn

40.1 ft in

Front Axle - Empty

68647.5 lb

Rear Axle - Empty

33812.3 lb

Front Axle - Load

94054 lb

Rear Axle - Loaded

83406 lb

Rated Payload

75000 lb

Heaped Capacity

31 yd3

Struck Capacity

21 yd3

Max Depth Of Cut

17.2 in

Width Of Cut

11.6 ft in

Bowl Cylinder Bore

7.2 in

Bowl Cylinder Stroke

34.4 in

Scraper Circuit

91 gal/min

Cushion Hitch Circuit

9 gal/min

Ejector Cylinder Bore

8.3 in

Ejector Cylinder Stroke

74 in

Apron Cylinder Bore

8.2 in

Apron Cylinder Stroke

28.6 in

Capacity - Heaped

34 yd3

Width - Cut - To Router Bits

138.3 lb/in

Rated Load

75000 lb

Capacity - Struck

21 yd3

Depth Of Cut - Maximum

17.2 lb/in

Depth Of Spread - Maximum

18.9 in

Scraper Capacity - Heaped

31 yd3

Hyd. Penetration Force - 621g

57375 lb

Apron Closure Force

38250 lb

Apron Opening

79 in

Hyd. Penetration Force - 631g

57375 lb

Differential

36 gal

Crankcase

11.7 gal

Wheel Coolant - Each

19.5 gal

Windshield Washer

6 gal

Total Shipping

100006 lb

Tractor Shipping

46002 lb

Scraper Shipping

54004 lb

Front Axle

68648 lb

Rear Axle

33812 lb