990 Wheel Loader

990 Wheel Loader

360° Exterior View

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 ...
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Engine

Engine Model
C27 Cat®
Rated Speed
1,800/min
Engine Power - ISO 14396
752HP
Gross Power - SAE J1995
766HP
Net Power - SAE J1349 - Standard Ambient
699HP
Net Power - SAE J1349 - High Ambient
648HP
Bore
5.4in
Stroke
6in
Displacement
1649.5in³
Peak Torque - 1,200 rpm
2624lb/ft
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
4.5mile/h
Forward - 2
8.3mile/h
Forward - 3
14.2mile/h
Reverse - 1
4.9mile/h
Reverse - 2
9.1mile/h
Reverse - 3
15.5mile/h
Direct Drive - Forward 1
Lock-up disabled
Direct Drive - Forward 2
8.5mile/h
Direct Drive - Forward 3
15.2mile/h
Direct Drive - Reverse 1
5.4mile/h
Direct Drive - Reverse 2
9.6mile/h
Direct Drive - Reverse 3
16.4mile/h
Note
Travel speeds based on Michelin 45/65R39 LD D2**L5 tires.

Operating Specifications

Operating Weight
178517lb
Rated Payload - Standard
17.5ton (US)
Rated Payload - High Lift
17.5ton (US)
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)
240gal/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
507psi
Relief Valve Setting - Lift/Tilt
4786psi

Hydraulic Cycle Times

Rack Back
4.3s
Raise
8.2s
Dump
2.9s
Lower
3.7s
Lower Float Down
3.6s
Total Hydraulic Cycle Time - Empty Bucket
13.8s

Hydraulic System - Steering

Steering System - Circuit
Pilot, load sensing
Steering System - Pump
Piston, variable displacement
Maximum Flow at 1,400 rpm
96.2gal/min
Relief Valve Setting - Steering
5004psi
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

Brakes
ISO 3450: 2011

Service Refill Capacities

Fuel Tank
294.3gal (US)
Cooling System
54.9gal (US)
Engine Crankcase
20gal (US)
Transmission
29.1gal (US)
Differential - Final Drives - Front
71.6gal (US)
Differential - Final Drives - Rear
68.9gal (US)
Hydraulic System Factory Fill
210gal (US)
Hydraulic Tank - Implement and Hydraulic Fan
68.9gal (US)
Hydraulic Tank - Steering and Braking
34.9gal (US)
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 l

Sound Performance - Standard

Operator Sound Level (ISO 6396:2008)
65.5dB(A)
Machine Sound Level (ISO 6395:2008)
115dB(A)

Sound Performance - Suppression

Operator Sound Level (ISO 6396:2008)
65.5dB(A)
Machine Sound Level (ISO 6395:2008)
113dB(A)

Buckets

Bucket Capacities
8.6 m³ – 10.0 m³ (11.25 yd³ – 13.0 yd³)

PROVEN RELIABILITY

        

  • Cat C27 engine is built and tested to meet your most demanding applications.
  •     

  • Longer engine life and improved fuel efficiency with reduced rated speed.
  •     

  • Designed for longer life, rebuildability, and higher resale value.
  •     

  • Maximum responsiveness with Steering and Integrated Control (STIC™).
  •     

  • Moves more material more efficiently with improved power and control.
  •     

  • Durable construction withstands the toughest loading conditions and multiple life cycles.

PERFORMANCE AND PRODUCTIVITY

        

  • Two engine emission options are available that meet U.S. EPA Tier 4 Final and EU Stage V emission standards or U.S. EPA Tier 2 and EU Stage II equivalent.
  •     

  • Up to 10% more payload per pass on truck-loading applications with Performance Series Buckets.
  •     

  • Payload increase to optimize pass on 775 trucks.
  •     

  • Positive Flow Control (PFC) hydraulic system increases efficiency, bucket feel, and responsiveness with consistent performance.
  •     

  • Excellent visibility to the bucket edges and work area through a Z-bar linkage.
  •     

  • Planetary power shift transmission for maximum uptime.
  •     

  • Convenient, responsive, electro-hydraulic controls increase operator productivity.
  •     

  • Superior digging, higher bucket fill factors, reduced dig times.
  •     

  • Integrated steering and transmission controls.
  •     

  • Operators can check tire pressure during operation with any change sending a fault code to VisionLink®, preventing premature tire failure. 

POWERFUL EFFICIENCY

        

  • Up to 54% fuel efficiency material per gallon of fuel (27% less fuel consumption).
  •     

  • Economy mode for reduced rated engine speed and reduced fuel consumption.
  •     

  • Positive flow-control hydraulics for full flow on demand at lower engine speeds.
  •     

  • Engine Idle Shutdown for less fuel used while idling.
  •     

  • Fully integrated electronic engine controls make your fuel go farther.

PRODUCTIVITY WITH TECHNOLOGY

        

  • Developed to monitor, manage, and enhance your jobsite operations.
  •     

  • Payload provides accurate weighing* of the materials you are loading and hauling. Payload data is displayed in real-time to improve productivity and reduce overloading.
  •     

  • Detect enhances awareness of the environment around working equipment and provides alerts to help keep people and assets safe on the jobsite.
  •     

  • VisionLink wirelessly connects you to your equipment, giving you access to essential information you need to know to run your business.
  •     

  • Gain valuable insight into how your machine or fleet is performing.
  •     

  • Optional Advanced Productivity subscription provides comprehensive actionable information to help you manage and improve the productivity and profitability of your operations.

*Not legal for trade

SAVE ON SERVICE AND MAINTENANCE

        

  • 10% lower maintenance costs.
  •     

  • Grouped service points.
  •     

  • Electro-hydraulic controls.
  •     

  • Swing-out engine compartment service doors.
  •     

  • Ecology drains to prevent spilled contaminants.
  •     

  • Ground level access to transmission control valves.
  •     

  • Vehicle Information Management System (VIMS™) notifications to resolve problems before failure.
  •     

  • Longer life, rebuildability, and high resale value.

SAFETY FIRST

        

  • Standard stairway lighting.
  •     

  • Left- and right-hand stairs with 45-degree angle.
  •     

  • Standard Cat Vision, rear vision camera system.
  •     

  • Pressurized cabin with filtered and reduced sound levels.

OPERATOR COMFORT AND CONTROL

        

  • Best-in-class operator comfort and ergonomics.
  •     

  • Premium seat with heated and actively cooled leather, adjustable lumbar support, air adjustable bolsters on the seat and backrest, seat cushion tilt adjustment, and adjustable-length seat cushion.
  •     

  • Easy-to-reach levers and controls with seat-mounted implement pod to reduce fatigue.
  •     

  • Ergonomic switch placement and displays with large backlit switches, LED indicators, and ISO symbols.
  •     

  • Optional heated mirrors.
  •     

  • Two-position rocker switch activates the electro-hydraulic parking brake.
  •     

  • Reduced vibrations from isolated cab mounts and seat air suspension.
  •     

  • Automatic cab temperature controls.
  •     

  • Achieve precise positioning for easy loading in tight areas with 35 degrees of steering articulation.
  •     

  • Precise machine control by load-sensing hydraulic steering system.

PURPOSE BUILT SPECIALTY MODELS - MILLYARD

        

  • Designed to meet the demands of millyard applications.
  •     

  • Designed for durability, ensuring availability in multiple life cycles.
  •     

  • Equipped with Economy Mode to save on fuel consumption by the use of On Demand Throttle.
  •     

  • Equipped with Impleller Clutch Torque Convereter (ICTC) and Rimpull Control System (RCS) to reduce tire slippage and fuel efficiency.
  •     

  • Full hydraulic flow down to 1,400 engine rpm by using hydraulic flow sharing technology.
  •     

  • Equipped with 45 degree angle access ladders and standard Cat Vision for enhanced safety.
  •     

  • Cat forks are designed for maximum productivity and durability.
  •     

  • Integrates front camera mounting location for maximum visibility to the entire fork tips during truck unloading.

PURPOSE BUILT SPECIALTY MODELS - STEEL MILL

        

  • World class safety, operator comfort and efficiency in pit digging and skull handling applications.
  •     

  • Efficiency of manual throttle and ergonomics of throttle lock.
  •     

  • Excellent visibility to the bucket edges and work area through a Z-bar design.
  •     

  • Equipped with extra heat protection to key hoses and harnesses for improved reliability.

LONG TERM VALUE AND DURABILITY

        

  • Best-in-class transmission for long life and consistent, smooth shifting; specifically designed for mining applications.
  •     

  • Advanced filtration system for extended performance and reliability of the hydraulic system.
  •     

  • Advanced Impeller Clutch Torque Converter (ICTC) and Rimpull Control System (RCS) reduce tire slippage and wear, improve fuel efficiency, and reduce cost-per-ton.
  •     

  • Linkage pin joints have optional auto-lube system to ensure long life.
  •     

  • Frame resists torsional shock and twisting forces.
  •     

  • Heavy-duty steering cylinder mounts and axle mounting ensure increased structural integrity.

Standard Equipment:

Optional Equipment:

    Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
    Power Train
    • –50° C (–58° F) antifreeze
    • Engine oil change system, high speed, Wiggins
    • Engine block heater 120V or 240V
    • High ambient cooling – software
    Operator Environment
    • Cab precleaner, powered
    • AM/FM/CD/MP3 radio
    • Satellite Sirius radio with Bluetooth
    • LED warning strobe
    • CB radio ready
    • Window sun shade
    Miscellaneous Attachments
    • Front and rear roading fenders
    • Fast fill fuel system (Shaw-Aero)
    • Axle oscillation stop
    • Heavy duty cab mounts