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Cat Large Wheel Loaders are designed with durability built in, ensuring maximum availability through multiple life cycles. With optimized performance and simplified serviceability, our machines allow you to move more material efficiently and safely at a lower cost per ton. The Cat 990 Wheel Loader has been a proven performer in steel mill applications where larger machines have typically been used. The 990K Steel Mill Arrangement brings all new levels of performance, safety, operator comfort and efficiency in pit digging and skull handling applications.
| Net Power | 699 HP |
| Engine Model | Cat® C27 ™ |
| Bore | 5.4 in |
| Stroke | 6 in |
| Displacement | 1649.5 in³ |
| Torque Rise | 18 % |
| Rated Speed - Gross - ISO 14396 | 752 HP |
| Rated Speed - Net Power - SAE J1349 - High Ambient | 648 HP |
| Rated Speed | 1800 r/min |
| Rated Speed - Net Power - SAE J1349 - Standard Ambient | 699 HP |
| Emissions | Entspricht EPA Tier 4 Final/Tier 2 (USA) |
| Peak Torque - 1,200 rpm | 2624 lb/ft |
| Gross - ISO 14396 | 752 HP |
| Net Power - SAE J1349 | 699 HP |
| Rated Speed - Gross - SAE J1995 | 766 HP |
| Operating Weight | 204693 lb |
| Rated Payload | 17.5 t |
| Bucket Capacity Range | 8.6 m3-9.2 m3 (11.25 yd3-12.0 yd3) |
| Rated Payload - Standard | 17.5 t |
| Cat Truck Match - Standard | 773-775 |
| Transmission Type | Cat-Planetenlastschaltgetriebe |
| Forward - 1 | 4.5 mile/h |
| Forward - 2 | 8.3 mile/h |
| Forward - 3 | 14.2 mile/h |
| Reverse - 1 | 4.9 mile/h |
| Reverse - 2 | 9.1 mile/h |
| Reverse - 3 | 15.5 mile/h |
| Direct Drive - Reverse 1 | 5.4 mile/h |
| Direct Drive - Reverse 2 | 9.6 mile/h |
| Direct Drive - Forward 2 | 8.5 mile/h |
| Direct Drive - Reverse 3 | 16.4 mile/h |
| Direct Drive - Forward 3 | 15.2 mile/h |
| Direct Drive - Forward 1 | Lock-up disabled |
| Note | Travel speeds based on Michelin 45/65R39 LD D2**L5 tires. |
| Relief Valve Setting - Lift/Tilt | 4786 psi |
| Cylinders, Double Acting - Tilt, Bore and Stroke | 317.5 mm × 819 mm (12.5 in × 32.2 in) |
| Lift/Tilt System | Variable displacement piston |
| Maximum Flow at 1,800 rpm (1) | 22.2 gal/min |
| Relief Valve Setting - Main | 507 psi |
| Maximum Flow at 1,800 rpm (2) | 216 gal/min |
| Lift/Tilt System - Circuit | Positive flow control |
| Pilot System | Open loop and pressure reducing |
| Cylinders, Double Acting - Lift, Bore and Stroke | 254 mm × 1264 mm (10.0 in × 49.8 in) |
| Fuel Tank | 294.3 gal (US) |
| Cooling System | 54.9 gal (US) |
| Transmission | 29.1 gal (US) |
| Differential - Final Drives - Rear | 68.9 gal (US) |
| Hydraulic Tank - Steering and Braking | 34.9 gal (US) |
| Differential - Final Drives - Front | 71.6 gal (US) |
| Engine Crankcase | 20 gal (US) |
| Hydraulic Tank - Implement and Hydraulic Fan | 68.9 gal (US) |
| Hydraulic System Factory Fill | 210 gal (US) |
| Bucket Capacities | 8.6-9.2 m3 (11.2-12.0 yd3) |
| Front | Fixed |
| Rear | Trunnion |
| Oscillation Angle | 8.5° |
| Brakes | SAE J1473 OKT90, ISO 3450:1992 |
| Relief Valve Setting - Steering | 4641 psi |
| Steering System - Pump | Piston, variable displacement |
| Maximum Flow at 1,400 rpm | 94.5 gal/min |
| Steering System - Circuit | Pilot, load sensing |
| Total Steering Angle | 70° |
| Raise | 9.4 s |
| Dump | 2.9 s |
| Rack Back | 4.8 s |
| Lower | 3.7 s |
| Lower Float Down | 3.6 s |
| Total Hydraulic Cycle Time - Empty Bucket | 15.9 s |
| Operator Sound Level (ISO 6396:2008) | 69 dB(A) |
| Machine Sound Level (ISO 6395:2008) | 115 dB(A) |
| Machine Sound Level (ISO 6395:2008) | 113 dB(A) |
| Operator Sound Level (ISO 6396:2008) | 69 dB(A) |
| Reach - Maximum Lift | 7.2 ft |
| Ground to Top of ROPS | 17.2 ft |
| Clearance at Maximum Lift | 13.4 ft |
| Maximum Overall Length | 41.8 ft |
| Ground to Top of Hood | 12.7 ft |
| Wheel Base | 15.1 ft |
| Ground to Lower Hitch Clearance | 2 ft |
| B-Pin Height - Maximum Lift | 19.2 ft |
| Rear Axle - Centerline to Bumper | 12.5 ft |
| Ground to Center of Front Axle | 3.9 ft |
| Ground to Bumper Clearance | 3.5 ft |
| Dump Angle at Maximum Lift | 47.4 degrees |
| Rack Back Angle - Carry | 48.8 degrees |
| Front Axle Centerline to Bucket Tip | 14.2 ft |
| Rack Angle at Maximum Lift | 63.7 degrees |
| Maximum Overall Height - Bucket Raised | 27 ft |
| Ground to Top of Exhaust Stacks | 16.6 ft |
| Rack Back Angle - Ground Level | 40.4 degrees |
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