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 mines, quarries and industrial applications around the world. The 990 brings all new levels of performance, safety, operator comfort and efficiency.
Engine
| Engine Model |
C27 Cat® |
| Rated Speed |
1,800/min |
| Engine Power - ISO 14396:2002 |
561 kW |
| Gross Power - SAE J1995:2014 |
766 hp |
| Net Power - SAE J1349 - Standard Ambient |
699 hp |
| Net Power - SAE J1349 - High Ambient |
648 hp |
| Bore |
137.2 mm |
| Stroke |
152.4 mm |
| Displacement |
27.03 l |
| Peak Torque - 1,200 rpm |
3557 N·m |
| Torque Rise |
18 % |
| Emissions |
U.S. EPA TIer 4 Final and EU Stage V emission standards or U.S. EPA Tier 2 and EU Stage II equivalent |
Transmission
| Transmission Type |
Cat planetary power shift |
| Forward - 1 |
7.3 km/h |
| Forward - 2 |
13.3 km/h |
| Forward - 3 |
22.9 km/h |
| Reverse - 1 |
7.9 km/h |
| Reverse - 2 |
14.7 km/h |
| Reverse - 3 |
24.9 km/h |
| Direct Drive - Forward 1 |
Lock-up disabled |
| Direct Drive - Forward 2 |
13.7 km/h |
| Direct Drive - Forward 3 |
24.5 km/h |
| Direct Drive - Reverse 1 |
8.7 km/h |
| Direct Drive - Reverse 2 |
15.4 km/h |
| Direct Drive - Reverse 3 |
26.4 km/h |
| Note |
Travel speeds based on Michelin 45/65R39 LD D2**L5 tires. |
Operating Specifications
| Operating Weight |
80974 kg |
| Rated Payload - Standard |
15.9 t |
| Rated Payload - High Lift |
15.9 t |
| Bucket Capacity Range |
8.6 m³ – 10.0 m³ (11.25 yd³ – 13.0 yd³) |
| Cat Truck Match - Standard |
773-775 |
| Cat Truck Match - High Lift |
775-777 |
Hydraulic System - Lift/Tilt
| Lift/Tilt System - Circuit |
Positive flow control |
| Lift/Tilt System |
Variable displacement piston |
| Maximum Flow at 1,800 rpm (1) |
910 l/min |
| Cylinders, Double Acting - Lift, Bore and Stroke |
235 mm × 1287 mm (9.3 in × 50.7 in) |
| Cylinders, Double Acting - Tilt, Bore and Stroke |
292.1 mm × 820 mm (11.5 in × 32.3 in) |
| Pilot System |
Open loop and pressure reducing |
| Relief Valve Setting - Main |
3500 kPa |
| Relief Valve Setting - Lift/Tilt |
33000 kPa |
Hydraulic Cycle Times
| Rack Back |
4.3 s |
| Raise |
8.2 s |
| Dump |
2.9 s |
| Lower |
3.7 s |
| Lower Float Down |
3.6 s |
| Total Hydraulic Cycle Time - Empty Bucket |
13.8 s |
Hydraulic System - Steering
| Steering System - Circuit |
Pilot, load sensing |
| Steering System - Pump |
Piston, variable displacement |
| Maximum Flow at 1,400 rpm |
364 l/min |
| Relief Valve Setting - Steering |
34500 kPa |
| Total Steering Angle |
70° |
Air Conditioning System
| Air Conditioning |
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 2.7 kg of refrigerant which has a CO2 equivalent of 3.861 metric tonnes (4.256 tons). |
Axles
| Front |
Fixed |
| Rear |
Trunnion |
| Oscillation Angle |
8.5° |
Brakes
Service Refill Capacities
| Fuel Tank |
1114 l |
| Cooling System |
208 l |
| Engine Crankcase |
75.7 l |
| Transmission |
110 l |
| Differential - Final Drives - Front |
271 l |
| Differential - Final Drives - Rear |
261 l |
| Hydraulic System Factory Fill |
795 l |
| Hydraulic Tank - Implement and Hydraulic Fan |
261 l |
| Hydraulic Tank - Steering and Braking |
132 l |
| Note |
All nonroad U.S. EPA Tier 4 diesel engines are required to use only Ultra Low Sulfur Diesel (ULSD) fuels containing 15 ppm (mg/kg) sulfur or less. Biodiesel blends up to B20 (20% blend by volume) are acceptable when blended with 15 ppm (mg/kg) sulfur or less ULSD. B20 should meet ASTM D7467 specification (biodiesel blend stock should meet Cat biodiesel spec, ASTM D6751 or EN 14214. Cat DEO‑ULS™ or oils that meet the Cat ECF-3, API CJ‑4, and ACEA E9 specification are required. For further fluid specifications and guidelines, visit: http://parts.cat.com/cda/files/3244668/7/SEBU6250-19.pdf. |
Sound Performance - Standard
| Operator Sound Level (ISO 6396:2008) |
65.5 dB(A) |
| Machine Sound Level (ISO 6395:2008) |
115 dB(A) |
Sound Performance - Suppression
| Operator Sound Level (ISO 6396:2008) |
65.5 dB(A) |
| Machine Sound Level (ISO 6395:2008) |
113 dB(A) |
Buckets
| Bucket Capacities |
8.6 m³ – 10.0 m³ (11.25 yd³ – 13.0 yd³) |
30 Mins