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 Model
C27 Cat®
Rated Speed
1,800/min
Engine Power – ISO 14396
561 kW
Product specifications for 990 Large Wheel Loaders
Engine
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Engine Model
C27 Cat®
Rated Speed
1,800/min
Engine Power – ISO 14396
561 kW
Gross Power – SAE J1995
571 kW
Net Power – SAE J1349 – Standard Ambient
521 kW
Net Power – SAE J1349 – High Ambient
483 kW
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
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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
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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
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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
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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
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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
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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
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Front
Fixed
Rear
Trunnion
Oscillation Angle
8.5°
Brakes
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Brakes
ISO 3450: 2011
Service Refill Capacities
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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
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Operator Sound Level (ISO 6396:2008)
65.5 dB(A)
Machine Sound Level (ISO 6395:2008)
115 dB(A)
Sound Performance – Suppression
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Operator Sound Level (ISO 6396:2008)
65.5 dB(A)
Machine Sound Level (ISO 6395:2008)
113 dB(A)
Buckets
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Bucket Capacities
8.6 m³ – 10.0 m³ (11.25 yd³ – 13.0 yd³)
PROVEN RELIABILITY
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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.
990 Standard Equipment
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NOTE
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Standard and optional equipment may vary. Consult your Cat dealer for details.
OPERATOR ENVIRONMENT
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Air conditioner and heater with automatic temperature control
Cab, sound-suppressed pressurized, protective structure (ROPS/FOPS)
12V power port for mobile phone or laptop connection
Cat Vision, rear vision camera system
Cigar lighter and ashtray
Coat hook
Electro-hydraulic tilt and lift controls (seat mounted)
Flip-up armrest
Heater and defroster
Horn, electric
Implement hydraulic lockout
Instrumentation, gauges:
– Engine coolant temperature
– Fuel level
– Ground speed
– Gear
– Hydraulic oil temperature
– Speedometer/tachometer
– Torque converter temperature
Instrumentation, warning indicators:
– Action alert system, three category
– Automatic transmission model enable status
– Brake malfunction
– Bucket float status
– Delayed engine shutdown status
– Engine idle shutdown status
– Engine malfunction
– Fuel economy mode enable status
– Hydraulic lockout
– Lockup clutch enable status
– Low fuel level
– Parking brake status
– Rimpull control enable status
– Seatbelt warning
– Secondary steering (if equipped)
– Throttle lock status
– Transmission gear
Keypad, control with indicator lights:
– Auto trans mode speed range
– Auto/manual transmission mode
– Fuel economy mode
– Implement kickout
– Lockup clutch
– Reduced rimpull
– Throttle lock
Light, dome (cab)
Lunchbox and beverage holders
Mirrors, rearview (externally mounted)
Seat, leather/cloth, air suspension, heated/cooled
Seat belt, retractable, 76 mm (3 in) wide
STIC control system with steering lock
Tinted glass
Trainer seat with lap belt
Vital Information Management System (VIMS) 3G with graphical information display: external data port, customizable operator profiles, cycle timer, and integral Cat Production Measurement
– Wet-arm wipers/washers (front, rear and corner) intermittent front wiper
POWER TRAIN
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Brakes, full hydraulic, enclosed, oil-disc
Axle-shaft oil-disc service brake
Electro hydraulic parking brake
Case drain screens
Cat clean emission module (Tier 4 only)
Demand fan
Engine Cat C27
Fuel priming pump (electric)
Ground level engine shutoff, bumper
Mufflers (under hood) (Tier 2 equivalent only)
Precleaner, engine air intake
Radiator, Aluminum Modular (AMR)
Separated cooling system
Starting aid, (ether) manual override
Throttle Lock
Torque Converter, Impeller Clutch with lock-up clutch feature and rimpull control system
Transmission, 534 mm (21 in) planetary power shift (electronic) (3F/3R)
ELECTRICAL
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Alarm, back-up
Alternator, 150 amp
Batteries, maintenance free (2 – 1,400 CCA)
Converter, 10/15 amp, 24V to 12V
Deutsch component connectors
Electrical system, 24V
Electronic transmission control
Lighting system, halogen (front and rear) lighting, access stairway, engine compartment
Starter, electric
Starter lockout in bumper
Starting receptacle for emergency start
Transmission lockout in bumper
OTHER
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Automatic bucket tilt/lift kickouts electronically adjustable from cab
Axle temperature sensor
Battery disconnect and jump start receptacle, bumper
Coupling, Caterpillar O-ring face seals
Economy mode with on demand throttle
Emergency platform egress
Engine, crankcase, 500 hour interval with CH4
Engine idle management features:
– Auto idle kickdown
– Delayed engine shutdown
– Engine idle shutdown
Fenders, steel (front)
Guards, crankcase and power train
Grouped/labeled lube points
Hitch, drawbar with pin
Hoses, Cat XT™
Oil sampling valves
Positive flow control hydraulic system
Product Link
Sight Gauges: hydraulic tanks, steering/fan and implement/brake, and transmission
Stairway, left and right rear access
Steering, load sensing
Toe kicks
Vandalism protection caplocks
Venturi stack
Premixed 50% concentration of extended life coolant with freeze protection to –34° C (–29° F)
990 Optional Equipment
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NOTE
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Standard and optional equipment may vary. Consult your Cat dealer for details.
POWER TRAIN
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–50° C (–58° F) antifreeze
Engine oil change system, high speed, Wiggins
Engine block heater 120V or 240V
High ambient cooling – software
OPERATOR ENVIRONMENT
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Cab precleaner, powered
AM/FM/CD/MP3 radio
Satellite Sirius radio with Bluetooth
LED warning strobe
CB radio ready
Window sun shade
MISCELLANEOUS ATTACHMENTS
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Front and rear roading fenders
Fast fill fuel system (Shaw-Aero)
Axle oscillation stop
Heavy duty cab mounts
