Caterpillar 308E2 CR
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Contents:
Undercarriage
| Track Gauge | 6.53 ft in (1990 mm) |
| Drawbar Pull | 20720 lb (92.17 kN) |
| Ground Pressure | 5.51 psi (38 kPa) |
| Max Travel Speed | 3.42 mph (5.5 km/h) |
Swing System
| Machine Swing Speed | 11 rpm |
| Note | Automatic swing break, spring applied, hydraulic release. |
| Boom Swing - Left | 60 degrees |
Engine
| Number Of Cylinders | 4 |
| Engine Make | 2236 |
| Engine Model | C3.3B |
| Gross Power | 66.6 hp (49.7 kw) |
| Net Power | 65 hp (48.5 kw) |
| Power Measured @ | 2400 rpm |
| Displacement | 203.2 cu in (3.4 L) |
| Aspiration | Turbocharged |
| Bore | 3.7 in (94 mm) |
| Stroke | 4.7 in (119.4 mm) |
| Emissions | Meets U.S. EPA Tier 4 Final and EU Stage IIIB emission standards. |
| Net Power - Iso 9249 | 65 hp (48.5 kw) |
| Engine Model | Cat C3.3B |
| Gross Power - Iso 14396 | 66.6 hp (49.7 kw) |
| Rated Net Power - 2,400 Rpm - Iso 9249/Eec 80/1269 | 65 hp (48.5 kw) |
Operational
| Operating Weight | 18519 lb (8400.1 kg) |
| Fuel Capacity | 33 gal (125 L) |
| Cooling System Fluid Capacity | 3.7 gal (14.1 L) |
| Hydraulic System Fluid Capacity | 21.7 gal (82.2 L) |
| Engine Oil Capacity | 3 gal (11.4 L) |
Swing Mechanism
| Swing Speed | 11 rpm |
Weights
| Operating Weight | 18519 lb (8400.1 kg) |
| Note (1) | Weight with rubber tracks, bucket, operator (75 kg/165 lb), full fuel and auxiliary lines. |
| Note (2) | Weight varies depending on machine configuration. |
| Operating Weight - With Cab | 18519 lb (8400.1 kg) |
Buckets
| Minimum Bucket Capacity | 0.5 yd3 (0.4 m3) |
| Maximum Bucket Capacity | 1.1 yd3 (0.8 m3) |
Blade
| Blade Width | 7.7 ft in (2320 mm) |
| Blade Height | 17.8 in (450 mm) |
| Height | 17.7 in (449.6 mm) |
| Width | 7.7 ft in (2319.1 mm) |
Hydraulic System
| Note | Load sensing hydraulics with variable displacement piston pump. |
Blade
| Lift Height | 15 in (381 mm) |
| Dig Depth | 14.2 in (360.7 mm) |
Hydraulic System
| Operating Pressure - Swing | 3481 psi |
| Operating Pressure - Equipment | 4061 psi |
| Operating Pressure - Travel | 4061 psi |
| Digging Force - Stick - Standard | 9015 lb (4089.2 kg) |
| Digging Force - Stick - Long | 7891 lb (3579.3 kg) |
| Digging Force - Bucket | 13534 lb (6139 kg) |
| Auxiliary Circuit - Secondary (174 Bar/2,524 Psi) | 16.9 gal/min |
| Auxiliary Circuit - Primary (186 Bar/2,734 Psi) | 33.8 gal/min |
| Pump Flow At 2,000 Rpm | 39.6 gal/min |
Operating Specifications
| Machine Overhang | 11 in (279.4 mm) |
| Stick Length - Standard | 66 in (1676.4 mm) |
| Stick Length - Long | 87 in (2209.8 mm) |
| Maximum Dig Depth | 163.5 in (4151.4 mm) |
| Machine Overhang With Counterweight | 16 in (406.4 mm) |
| Counterweight | 551 lb (250 kg) |
Service Refill Capacities
| Cooling System | 3.7 gal (14.1 L) |
| Fuel Tank | 33 gal (125 L) |
| Hydraulic Tank | 21.7 gal (82.2 L) |
| Hydraulic System | 24.8 gal (93.9 L) |
| Engine Oil | 3 gal (11.4 L) |
Cab
| Dynamic Operator Sound Pressure | 70 dB(A) ISO 6396 |
| Average Exterior Sound Pressure | 99 dB(A) ISO 6395 Dynamic Test |
Travel System
| Maximum Traction Force - High Speed | 8408 lb (3813.9 kg) |
| Maximum Traction Force - Low Speed | 14500 lb (6577.1 kg) |
| Travel Speed - High | 3.2 mph (5.2 km/h) |
| Travel Speed - Low | 1.8 mph (2.9 km/h) |
| Gradeability - Maximum | 30 degrees |
| Ground Pressure | 5.26 psi |
| Note (1) | Each track is driven by one independent 2-speed motor. |
| Note (2) | Drive modules are integrated into the roller frame for total protection. |
| Note (3) | Straight line travel when tracking and operating the front linkage simultaneously. |
