988 Large Wheel Loader

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METRIC

988

OVERVIEW

BENEFITS

FEATURES AT A GLANCE

SPECIFICATIONS

PRODUCT BROCHURES AND DOWNLOADS

TOOLS AND EXPERT HELP

MEDIA GALLERY

KEY SPECS

Engine Power - ISO 14396:2002 432kW580hp
Engine Model Cat® C18
Rated Speed 1700/rpm

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OVERVIEW

BENEFITS

FEATURES AT A GLANCE

PROVEN RELIABILITY

Cat C18 engine is built and tested to meet your most demanding applications.
Cat torque converter with lock-up clutch helps reduce torque converter losses and lowers system heat.
Maximum responsiveness with Steering and Transmission Integrated Control (STIC™).
Moves more material efficiently with improved power and control.
Durable construction withstands the toughest loading conditions and multiple lifecycles.

LONG TERM VALUE AND DURABILITY

World-class transmission for long life and consistent, smooth shifting; specifically designed for mining applications.
Advanced productivity electronic control strategy (APECS) transmission controls for optimal momentum on grades.
Positive flow control (PFC) hydraulic system helps increase efficiency, bucket feel, and responsiveness with consistent performance.
Advanced filtration system for extended performance and reliability of the hydraulic system.
Impeller clutch torque converter (ICTC) helps minimize tire spin by allowing torque to adjust to underfoot conditions.

PERFORMANCE AND PRODUCTIVITY

Superior digging, higher bucket fill factors, reduced dig times.
Improved visibility over the top of the linkage.
Operators can now monitor tire pressure during operation. Any change sending a fault code to VisionLink®, helps prevent premature tire failure.
Convenient, responsive, electro-hydraulic controls help increase operator productivity.

PERFORMANCE WITH LESS FUEL

Economy mode helps optimize engine speed control for reduced fuel consumption no matter if operating in manual throttle or throttle lock.
Flow sharing hydraulics provide full flow at reduced engine rpm.
Fully integrated electronic engine controls help make your fuel go farther.
Engine idle shutdown for less fuel used while idling.
Increased hydraulic speed and fast cycle times helps decrease idle and fuel burn, with optimal efficiency.

PRODUCTIVITY WITH TECHNOLOGY

Cat Technologies developed to monitor, manage, and enhance your jobsite operations.
Cat 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.
Cat Detect enhances awareness of the environment around working equipment and provides alerts to help keep people and assets safe on the jobsite.
Product Link™ 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 plan provides comprehensive actionable information to help you manage and improve the productivity and profitability of your operations.
Improved cycle times and bucket fill factors with optional operator coaching.
Optimized dig segment cycle with optional operator assist – tire slip prevention, auto set tires, and lift stall prevention.
Easy to operate in single pedal with dynamic braking and operator assist features that allow faster training of new operators.
Increase operator efficiency with Operator Coaching through onboard tips for truck loading operations.

*Not legal for trade. 988 Large Wheel Loader - Payload Display

SAFETY FIRST

Achieve precise positioning for easy loading in tight areas with 43 degrees of steering articulation.
Precise machine control by load-sensing hydraulic steering system.
Reduced stairway angles and standard stairway lighting provide reduced risk of slips, trips, and falls due to better visbility of the steps and stairway.
Computerized monitoring system with warning indicators.
Standard Cat Vision enhances visibility behind the machine, helping you work safely and confidently.
Pressurized cabin with filtered air and reduced sound levels.

SAVE ON SERVICE AND MAINTENANCE

Grouped service points provide easy access to critical daily service checks.
Swing-out engine compartment service doors.
Reduced waste with maintenance-free batteries.
Ecology drains to prevent spills and allow for easier service.
Vehicle Information Management System (VIMS™) notifications to help resolve problems before failure.
Ground level access to transmission control valves.
Long life, rebuildability, and high resale value.

OPERATOR COMFORT AND CONTROL

World-class operator comfort and ergonomics.
Cat Premium Plus seat with standard features including leather finish, forced air heating and cooling, two-way thigh adjustment, power lumbar and back bolster adjustment, and dynamic end dampening to provide total comfort throughout the workday.
Easy-to-reach levers and seat-mounted implement pod to help reduce fatigue.
Ergonomic switch placement and displays with LED indicators.
Two-position rocker switch activates the electro-hydraulic parking brake.
Reduced vibrations from isolated cab mounts and seat air suspension.
Automatic cab temperature controls.

PURPOSE-BUILT SPECIALTY MODELS - BLOCK HANDLER

Delivers stability and durability with an optimized counterweight for block handling applications.
A high rimpull powertrain features a torque converter and transmission specially designed for this application to maximize rimpull.
An additional hydraulic valve with the quick coupler allows the operator to switch work tools and immediately lock the work tool during load and carry applications.
Purpose-built tilt and lift cylinders on the linkage help improve load control and ensure safe and long lasting operation.
Ride control acts as a shock absorber, providing the operator with a smoother ride over rough terrain.

PURPOSE-BUILT SPECIALTY MODELS - MILLYARD

Unload a typical full-length log truck in a single pass with the larger lift and tilt cylinders and a unique tilt lever to maximize linkage force. Designed with more lift capacity and 26% more tilt capacity over the standard 988.
Swing out fan radiator design for easy service in high-debris millyard applications helping to reduce maintenance and service down time. Auto reversing fan system to help dislodge debris and keep air flowing across the radiator cores.
Additional counterweight to help increase stability for improved confidence while maneuvering with full loads.
Purpose-built lift arm with lowered cross member to help increase visibility to the tips of the forks helping to increase the speed when lining up the load and reduce operator movements to see the forks.

PURPOSE-BUILT SPECIALTY MODELS - STEEL MILL

Durable and reinforced attachments for operator comfort, safety, and easy machine access.
Radiator is designed for easy cleaning and to keep material from building up.
Auto reversing fan and easy access to cooling cores help keep cab at comfortable temperature.
Equipped with extra guarding and heat protection for critical machine functions.
Flame resistant ecosafe hydraulic fluid available as an option.
Performance series, serrated edge slag, straight edge slag, and slag buckets help maximize material retention and minimize dig time.

SPECIFICATIONS

Engine Power - ISO 14396:2002 432kW580hp
Engine Model Cat® C18
Rated Speed 1700/rpm
Peak Power Speed 1500/rpm
Gross Power - SAE J1995:2014 439kW588hp
Net Power - SAE J1349:2011 401kW538hp
Bore 145mm5.7in
Stroke 183mm7.2in
Displacement 18.1l1105in³
Peak Torque - 1,200 rpm 2852N·m2104lbf·ft
Torque Rise 58%58%
Note (1) Three engine emission options are available: 1. Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards. 2. Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA. 3. Meets China Nonroad Stage IV emission standards.
Note (2) Net power advertised is the power available at the flywheel when the engine is equipped with fan at minimum speed, air intake system, exhaust system, and alternator.
Operating Weight 51062kg112574lb
Bucket Capacity Range 4.7-13 m3 (6.2-17 yd3)
Rated Payload - Quarry Face 11.3t12.5t
Rated Payload - Loose Material 14.5t16t
Cat Truck Match - Standard 770 - 772
Cat Truck Match - High Lift 773 - 775
Transmission Type Cat planetary powershift
Forward - 1 6.5km/h4.0mile/h
Forward - 2 11.6km/h7.2mile/h
Forward - 3 20.4km/h12.7mile/h
Forward - 4 34.7km/h21.6mile/h
Reverse - 1 7.5km/h4.7mile/h
Reverse - 2 13.3km/h8.3mile/h
Reverse - 3 23.2km/h14.4mile/h
Direct Drive - Forward 1 Lock-up disabled
Direct Drive - Forward 2 12.5km/h7.8mile/h
Direct Drive - Forward 3 22.3km/h13.9mile/h
Direct Drive - Forward 4 39.3km/h24.4mile/h
Direct Drive - Reverse 1 8.0km/h5.0mile/h
Direct Drive - Reverse 2 14.3km/h8.9mile/h
Direct Drive - Reverse 3 25.5km/h15.8mile/h
Lift/Tilt System - Circuit EH- Positive Flow Control, Flow Sharing
Lift/Tilt System - Pump Variable displacement piston
Maximum Flow at 1,400-1,860 rpm 580l/min153gal/min
Relief Valve Setting - Lift/Tilt 32800kPa4757psi
Cylinders, Double Acting - Lift, Bore and Stroke 210 mm × 1050 mm (8.7 in × 41.3 in)
Cylinders, Double Acting - Tilt, Bore and Stroke 266 mm × 685 mm (8.7 in × 27 in)
Pilot System Variable displacement piston
Relief Valve Setting - Main 3800kPa551psi
Rack Back 4.5s4.5s
Raise 8.0s8.0s
Dump 2.2s2.2s
Lower Float Down 3.5s3.5s
Total Hydraulic Cycle Time - Empty Bucket 18.2s18.2s
Steering System - Circuit Pilot, load sensing
Steering System - Pump Piston, variable displacement
Maximum Flow at 1,400-1,600 rpm 270l/min71.3gal/min
Relief Valve Setting - Steering 30000kPa4351psi
Total Steering Angle 86 °
Steering Cycle Times - High Idle 3.4s3.4s
Steering Cycle Times - Low Idle 5.6s5.6s
Air Conditioning • The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. • If equipped with R134a (Global Warming Potential = 1430), the system contains 1.8 kg (3.9 lb) of refrigerant which has a CO2 equivalent of 2.574 metric tonnes (2.837 tons).
Front Fixed
Rear Trunnion
Oscillation Angle 13 °
Brakes ISO 3450:2011
ROPS/FOPS ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards
Operator Sound Pressure Level (ISO 6396:2008) 73dB(A)73dB(A)
Machine Sound Power Level (ISO 6395:2008) 111dB(A)111dB(A)
Operator Sound Pressure Level (ISO 6396:2008)* 72dB(A)72dB(A)
Machine Sound Power Level (ISO 6395:2008)** 109dB(A)109dB(A)
Note (1) * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives.”
Note (2) ** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701.
Note (3) The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed.
Note (4) The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed.
Note (5) Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.
Operator Sound Pressure Level (ISO 6396:2008) 73dB(A)73dB(A)
Machine Sound Power Level (ISO 6395:2008) 112dB(A)112dB(A)
Operator Sound Pressure Level (ISO 6396:2008)* 72dB(A)72dB(A)
Machine Sound Power Level (ISO 6395:2008)** 110dB(A)110dB(A)
Note (1) * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives.”
Note (2) ** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701.
Note (3) The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed.
Note (4) The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed.
Note (5) Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.
Fuel Tank 712l188gal (US)
Cooling System 120l31.7gal (US)
Coolant (Validated by Test Cell Fill Quantities) 125l33gal (US)
Crankcase 60l15.9gal (US)
Diesel Exhaust Fluid Tank (For Tier 4 Final/Stage V Only) 33l8.7gal (US)
Transmission 92l24.3gal (US)
Transmission - Validated by Test Cell Fill Quantities 110l29gal (US)
Differential - Final Drives - Front 186l49.1gal (US)
Differential - Final Drives - Rear 186l49.1gal (US)
Hydraulic System Factory Fill 475l125.5gal (US)
Hydraulic System - Tank Only 240l63.4gal (US)
Note • All non-road Tier 4 Final/Stage V diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: – 20% biodiesel FAME (fatty acid methyl ester)* – 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. • Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).** • For pre-Tier 4 engines: Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels** up to: – 100% biodiesel FAME (fatty acid methyl ester)* – 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. * For use of blends higher than 20% biodiesel, consult your Cat dealer. ** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels.
Ground to Top of ROPS 4202mm13.8ft
Ground to Top of Exhaust Stacks 4521mm14.8ft
Ground to Top of Hood 3334mm10.9ft
Rear Axle - Centerline to Bumper 3187mm10.5ft
Front Axle Centerline to Bucket Tip 4254mm14ft
Wheel Base 4550mm14.9ft
Maximum Overall Length 11991mm39.3ft
Ground to Lower Hitch Clearance 568mm1.9ft
Clearance at Maximum Lift 3641mm11.9ft
B-Pin Height - Maximum Lift 5485mm18.0ft
Maximum Overall Height - Bucket Raised 7455mm24.5ft
Reach - Maximum Lift 1981mm6.5ft
Ground to Top of ROPS 4202mm13.8ft
Ground to Top of Exhaust Stacks 4521mm14.8ft
Ground to Top of Hood 3334mm10.9ft
Rear Axle - Centerline to Bumper 3187mm10.5ft
Front Axle Centerline to Bucket Tip 4661mm15.3ft
Wheel Base 4550mm14.9ft
Maximum Overall Length 12398mm40.7ft
Ground to Lower Hitch Clearance 568mm1.9ft
Clearance at Maximum Lift 4043mm13.3ft
B-Pin Height - Maximum Lift 5887mm19.3ft
Maximum Overall Height - Bucket Raised 7849mm25.8ft
Reach - Maximum Lift 2062mm6.8ft