Caterpillar 637G
Browse All Caterpillar or Motor Scraper Models
Contents:
Dimensions
| Overall Length | 47.78 ft in (14565 mm) |
| Overall Width | 12.92 ft in (3938 mm) |
| Overall Height | 14.07 ft in (4286 mm) |
| Wheelbase | 28.77 ft in (8769 mm) |
| Tractor Ground Clearance | 2.19 ft in (665 mm) |
| Height To Top Of Cab | 12.19 ft in (3715 mm) |
| Height - Scraper Blade Maximum | 21.5 in (546.1 mm) |
| Height - Top Of Cab | 12.2 ft in (0.31 m) |
| Height - Top Of Scraper | 13.71 ft in (4.18 m) |
| Length - Overall | 50.75 ft in (15.47 m) |
| Length - Overall Machine | 573.4 in (14564.36 mm) |
| Rear Axle - Rear Of Machine | 95.75 in (2432.06 mm) |
| Tread - Scraper | 8.07 ft in (2.46 m) |
| Tread - Tractor | 8.07 ft in (2.46 m) |
| Wheel Base | 28.77 ft in (0.74 m) |
| Width - Inside Of Bowl | 134 in (3403.6 mm) |
| Width - Outside Bowl - Shipping Width | 154 in (3911.6 mm) |
| Width - Outside Rear Tires | 143.2 in (3637.28 mm) |
| Width - Overall | 12.93 ft in (3.95 m) |
| Width - Overall Machine | 155 in (3937 mm) |
| Width - Rear Tire Center Lines | 97 in (2463.81 mm) |
| Axle To Vertical Hitch Pin | 21.6 in (548.64 mm) |
| Width - Tractor | 137 in (3479.8 mm) |
| Bail Length - Maximum (Push-Pull) | 195.3 in (4960.62 mm) |
| Extended Push Block (Push-Pull) | 108 in (2743.2 mm) |
| Front Of Tractor To Front Axle | 135.25 in (3435.35 mm) |
| Ground Clearance - Tractor | 26.2 in (665.48 mm) |
| Height - Overall Shipping | 168.75 in (4286.25 mm) |
Tractor Engine
| Make | Caterpillar |
| Model | 3408E |
| Gross Power | 515 hp (384 kw) |
| Displacement | 1099 cu in (18.1 L) |
Engine
| Tractor Engine | Cat C18 with ACERT Technology |
| Flywheel Power - Tractor/Scraper | 373 kw (500 hp) / 211 kW (283 hp) |
Tractor Engine
| Flywheel Power - Tractor/Scraper | 336 kW (450 hp) / 186 kW (249 hp) |
| Net Power - Gears 1-2 | 450 hp (335.6 kw) |
| Gross Power - Gears 1-2 | 480 hp (358 kw) |
| Bore | 5.4 in (137.2 mm) |
| Stroke | 6 in (152.4 mm) |
| Net Power - Gears 3-8 | 485 hp (361.7 kw) |
| Gross Power - Gears 3-8 | 519 hp (387.1 kw) |
Engine
| Scraper Engine | Cat C9 with ACERT Technology |
Scraper Engine
| Make | Caterpillar |
| Model | 3306 |
| Gross Power | 270 hp (201 kw) |
| Displacement | 538 cu in (8.9 L) |
| Bore | 4.5 in (112.1 mm) |
| Stroke | 5.9 in (149.1 mm) |
| Net Power - Gear 1 | 249 hp (185.7 kw) |
| Net Power - Gears 2-4 | 274 hp (204.4 kw) |
| Gross Power - Gear 1 | 274 hp (204.4 kw) |
| Gross Power - Gears 2-4 | 299 hp (223 kw) |
Operational
| Fuel Capacity | 335 gal (1268 L) |
| Cooling System Fluid Capacity | 52 gal (202 L) |
| Engine Oil Fluid Capacity | 18.9 gal (72 L) |
| Transmission Fluid Capacity | 45.7 gal (176 L) |
| Differential Fluid Capacity | 40.5 gal (153 L) |
| Hydraulic System Fluid Capacity | 50 gal (190 L) |
| Wheel Coolant Fluid Capacity - Each | 39 gal (150 L) |
| Operating Voltage | 24 V |
| Alternator Supplied Amperage | 75 amps |
| Tire Size | 37.50-R35 |
Transmission
| Number Of Forward Gears | 8 |
| Number Of Reverse Gears | 1 |
| Max Speed Forward | 34.1 mph (54.9 km/h) |
| Max Speed Reverse | 6.2 mph (9.9 km/h) |
| Reverse | 6.2 mile/h |
Steering
| Width - 180 Degrees Turn | 40 ft in (12.2 m) |
| Steering Angle - Right | 90 degrees |
| Steering Angle - Left | 85 degrees |
| Hydraulic Output | 100 gal/min |
Transmission
| 1 Forward | 3.4 mph (5.5 km/h) |
| 2 Forward | 6.2 mph (10 km/h) |
| 3 Forward | 7.6 mph (12.3 km/h) |
| 4 Forward | 10.3 mph (16.6 km/h) |
| 5 Forward | 13.8 mph (22.3 km/h) |
| 6 Forward | 18.7 mph (30.1 km/h) |
| 7 Forward | 25.2 mph (40.6 km/h) |
| 8 Forward | 34.1 mph (54.9 km/h) |
| Top Speed - Loaded | 33 mph (53.2 km/h) |
Steering
| Width - 180 Degrees Turn - Right | 40.1 ft in (12.3 m) |
Weights
| Total Operating - Empty | 114745 lb (52047 kg) |
| Operating Weight | 114743.9 lb (52047 kg) |
| Front Axle - Empty | 67700 % |
| Rear Axle - Empty | 47045 % |
| Total Operating - Loaded | 189745 lb (86067 kg) |
| Front Axel - Loaded | 92975 lb (42173 kg) |
| Rear Axle - Loaded | 96770 % |
| Operating Weight - Loaded - Approximate | 194909 lb (88409.3 kg) |
| Operating Weight - Empty - Approximate | 118909 lb (53936.3 kg) |
Bowl
| Rated Payload | 75000 lb (34020 kg) |
| Heaped Capacity | 31 yd3 (23.7 m3) |
| Struck Capacity | 21 yd3 (16.1 m3) |
| Max Depth Of Cut | 17.2 in (437 mm) |
| Width Of Cut | 11.6 ft in (3512 mm) |
Operating Specifications
| Top Speed - Loaded | 33 mph (53.2 km/h) |
| Rated Load | 76000 lb (34473.1 kg) |
| Scraper Capacity - Struck | 41 yd3 (31.4 m3) |
| Scraper Capacity - Heaped | 50 yd3 (38.3 m3) |
| 180 Degrees Curb-To-Curb Turning Width | 45 ft in (13.8 m) |
Standards
| Brakes | Meets ISO |
| Rops/Fops | Meets SAE, ISO |
| Cab | Meets ANSI, SAE |
Hydraulics
| Bowl Cylinder Bore | 7.3 in (184.2 mm) |
| Bowl Cylinder Stroke | 34.4 in (873.8 mm) |
| Steering Circuit | 100 gal/min |
| Scraper Circuit | 91 gal/min |
| Cushion Hitch Circuit | 9 gal/min |
| Relief Valve - Steering Circuit | 1987 psi |
| Relief Valve - Implement Circuit | 2030 psi |
| Compensator Settings - Cushion Hitch Circuit | 2320 psi |
| Ejector Cylinder Bore | 8.3 in (210.9 mm) |
| Ejector Cylinder Stroke | 74 in (1879.6 mm) |
| Secondary Steering Circuit | 100 gal/min |
| Apron Cylinder Bore | 8.3 in (210.9 mm) |
| Apron Cylinder Stroke | 28.6 in (726.5 mm) |
Scraper Bowl
| Width - Cut - To Router Bits | 138.3 in (3512.9 mm) |
| Rated Load | 82260 lb (37312.6 kg) |
| Capacity - Struck | 24 yd3 (18.4 m3) |
| Depth Of Cut - Maximum | 17.2 in (436.9 mm) |
| Ground Clearance - Maximum | 21.5 in (546.1 mm) |
| Cutting Edge Thickness | 1.2 in (28.5 mm) |
| Depth Of Spread - Maximum | 18.9 in (480.1 mm) |
| Scraper Capacity - Heaped | 34 yd3 (26 m3) |
| Hyd. Penetration Force - 621g | 81000 lb (36741 kg) |
| Apron Closure Force | 38250 lb (17350 kg) |
| Apron Opening | 79 in (2006.6 mm) |
| Hyd. Penetration Force - 637g | 81000 lb (36741 kg) |
Service Refill Capacities - Scraper
| Transmission | 19 gal (72 L) |
| Differential | 3.2 gal (12.2 L) |
| Final Drive - Each | 5 gal (19 L) |
| Cooling System | 20 gal (75.8 L) |
| Crankcase | 7.9 gal (30 L) |
| Wheel Coolant - Each | 19.8 gal (75 L) |
| Fuel Tank - 637g | 335 gal (1268.2 L) |
Service Refill Capacities - Tractor
| Transmission | 29 gal (109.8 L) |
| Differential | 39 gal (147.7 L) |
| Final Drive - Each | 6.1 gal (23.1 L) |
| Cooling System | 29 gal (109.8 L) |
| Hydraulic Reservoir | 50.2 gal (190.1 L) |
| Crankcase | 11.9 gal (45.1 L) |
| Wheel Coolant - Each | 19.8 gal (75 L) |
| Windshield Washer | 1.5 gal (5.7 L) |
| Fuel Tank - 637g | 335 gal (1268.2 L) |
Weights - Standard, Tandem
| Total Shipping | 112760 lb (51147.1 kg) |
| Tractor Shipping | 66529 lb (30177.1 kg) |
| Scraper Shipping | 46231 lb (20970.1 kg) |
| Total Operating - Empty | 114744 lb (52047.1 kg) |
| Front Axle | 67700 lb (30708.3 kg) |
| Rear Axle | 47044 lb (21338.9 kg) |
| Total Operating - Loaded | 196944 lb (89332.4 kg) |
| Front Axle Weight - Loaded | 96503 lb (43773.1 kg) |
| Rear Axle - Weight - Loaded | 100441 lb (45559.3 kg) |
Weights - Push-Pull
| Total Shipping | 116100 lb (52662.1 kg) |
| Tractor Shipping | 68499 lb (31070.7 kg) |
| Scraper Shipping | 47601 lb (21591.5 kg) |
| Total Operating - Empty | 118084 lb (53562.1 kg) |
| Front Axle | 69670 lb (31601.8 kg) |
| Rear Axle | 48414 lb (21960.3 kg) |
| Total Operating - Loaded | 200284 lb (90847.4 kg) |
| Front Axle - Loaded | 98139 lb (44515.2 kg) |
| Rear Axle - Loaded | 102145 lb (46332.2 kg) |
Transmission - 637g
| 1 Forward | 3.4 mph (5.5 km/h) |
| 2 Forward | 6.2 mph (10 km/h) |
| 3 Forward | 7.6 mph (12.3 km/h) |
| 4 Forward | 10.3 mph (16.6 km/h) |
| 5 Forward | 13.8 mph (22.3 km/h) |
| 6 Forward | 18.7 mph (30.1 km/h) |
| Reverse | 6.2 mph (10 km/h) |
| 7 Forward | 25.2 mph (40.6 km/h) |
| 8 Forward | 34.1 mph (54.9 km/h) |
