988
Cat® Large Wheel Loaders set the standard for optimized productivity, minimizing downtime, enhancing operator comfort, and protecting people on your jobsite through key safety features.
988
Cat® Large Wheel Loaders set the standard for optimized productivity, minimizing downtime, enhancing operator comfort, and protecting people on your jobsite through key safety features.
Specifications
Air Conditioning System
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Air ConditioningThe air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.8 kg of refrigerant which has a CO2 equivalent of 2.574 metric tonnes.
Axles
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FrontFixed
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RearTrunnion
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Oscillation Angle13 °
Brakes
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BrakesISO 3450:2011
Buckets
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Bucket Capacities4.7-13 m3 (6.2-17 yd3)
Dimensions (Approximate) - High Lift Linkage
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Ground to Top of ROPS13.8 ft 4202 mm
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Ground to Top of Exhaust Stacks14.8 ft 4521 mm
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Ground to Top of Hood10.9 ft 3334 mm
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Rear Axle - Centerline to Bumper10.5 ft 3187 mm
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Front Axle Centerline to Bucket Tip15.3 ft 4661 mm
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Wheel Base14.9 ft 4550 mm
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Maximum Overall Length40.7 ft 12398 mm
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Ground to Lower Hitch Clearance1.9 ft 568 mm
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Clearance at Maximum Lift13.3 ft 4043 mm
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B-Pin Height - Maximum Lift19.3 ft 5887 mm
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Maximum Overall Height - Bucket Raised25.8 ft 7849 mm
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Reach - Maximum Lift6.8 ft 2062 mm
Dimensions (Approximate) - Standard Lift Linkage
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Ground to Top of ROPS13.8 ft 4202 mm
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Ground to Top of Exhaust Stacks14.8 ft 4521 mm
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Ground to Top of Hood10.9 ft 3334 mm
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Rear Axle - Centerline to Bumper10.5 ft 3187 mm
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Front Axle Centerline to Bucket Tip14 ft 4254 mm
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Wheel Base14.9 ft 4550 mm
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Maximum Overall Length39.3 ft 11991 mm
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Ground to Lower Hitch Clearance1.9 ft 568 mm
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Clearance at Maximum Lift11.9 ft 3641 mm
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B-Pin Height - Maximum Lift18 ft 5491 mm
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Maximum Overall Height - Bucket Raised24.5 ft 7455 mm
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Reach - Maximum Lift6.5 ft 1981 mm
Engine
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Net Power - SAE J1349:2011538 hp 401 kW
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Engine Power - ISO 14396:2002580 hp 432 kW
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Gross Power - SAE J1995:2014588 hp 439 kW
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Engine ModelCat® C18 ™
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Peak Power Speed1500/rpm
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Rated Speed1700/min
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EmissionsU.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards, Brazil MAR-1 and China Nonroad Stage IV emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA, and U.S. EPA Tier 2 and EU Stage II
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Bore5.7 in 145 mm
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Stroke7.2 in 183 mm
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Displacement1105 in³ 18.1 l
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Peak Torque - 1,200 rpm2230 lb/ft 3023 N·m
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Torque Rise58 % 58 %
Hydraulic Cycle Time (1,400-1,860 rpm)
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Rack Back4.5 s 4.5 s
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Raise8 s 8 s
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Dump2.2 s 2.2 s
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Lower Float Down3.5 s 3.5 s
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Total Hydraulic Cycle Time - Empty Bucket18.2 s 18.2 s
Hydraulic System - Lift/Tilt
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Lift/Tilt System - CircuitEH- Positive Flow Control, Flow Sharing
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Lift/Tilt SystemVariable displacement piston
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Maximum Flow at 1,400-1,860 rpm153 gal/min 580 l/min
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Relief Valve Setting - Lift/Tilt4757 psi 32800 kPa
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Cylinders, Double Acting - Lift, Bore and Stroke210 mm × 1050 mm (8.7 in × 41.3 in)
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Cylinders, Double Acting - Tilt, Bore and Stroke269 mm × 685 mm (8.7 in × 27 in)
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Pilot SystemVariable displacement piston
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Relief Valve Setting - Main551 psi 3800 kPa
Hydraulic System - Steering
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Steering System - CircuitPilot, load sensing
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Steering System - PumpPiston, variable displacement
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Maximum Flow71.3 gal/min 270 l/min
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Relief Valve Setting - Steering4351 psi 30000 kPa
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Total Steering Angle86 °
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Steering Cycle Times - High Idle3.4 s 3.4 s
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Steering Cycle Times - Low Idle5.6 s 5.6 s
Operating Specifications
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Operating Weight112574 lb 51062 kg
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Rated Payload - Quarry Face12.5 t 11.3 t
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Rated Payload - Loose Material16 t 14.5 t
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Bucket Capacity Range4.7-13 m3 (6.2-17 yd3)
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Cat Truck Match - Standard770~772
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Cat Truck Match - High Lift773~775
Operator's Cab
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ROPS/FOPSROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards
Service Refill Capacities
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Fuel Tank188 gal (US) 712 l
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Cooling System31.7 gal (US) 120 l
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Coolant (Validated by Test Cell Fill Quantities)33 gal (US) 125 l
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Crankcase15.9 gal (US) 60 l
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Diesel Exhaust Fluid Tank8.7 gal (US) 33 l
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Transmission31.7 gal (US) 120 l
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Transmission - Validated by Test Cell Fill Quantities29 gal (US) 110 l
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Differential - Final Drives - Front49.1 gal (US) 186 l
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Differential - Final Drives - Rear49.1 gal (US) 186 l
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Hydraulic System Factory Fill125.5 gal (US) 475 l
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Hydraulic System - Tank Only63.4 gal (US) 240 l
Sound Performance - Tier 3 / Stage III - Standard
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Operator Sound Pressure Level (ISO 6396:2008)73 dB(A) 73 dB(A)
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Machine Sound Power Level (ISO 6395:2008)112 dB(A) 112 dB(A)
Sound Performance - Tier 4 Final / Stage V - Standard
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Operator Sound Pressure Level (ISO 6396:2008)73 dB(A) 73 dB(A)
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Machine Sound Power Level (ISO 6395:2008)111 dB(A) 111 dB(A)
Transmission
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Transmission TypeCat planetary powershift
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Forward - 14 mile/h 6.5 km/h
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Forward - 27.2 mile/h 11.6 km/h
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Forward - 312.7 mile/h 20.4 km/h
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Forward - 421.6 mile/h 34.7 km/h
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Reverse - 14.7 mile/h 7.5 km/h
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Reverse - 28.3 mile/h 13.3 km/h
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Reverse - 314.4 mile/h 23.2 km/h
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Direct Drive - Forward 1Lock-up disabled
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Direct Drive - Forward 27.8 mile/h 12.5 km/h
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Direct Drive - Forward 313.9 mile/h 22.3 km/h
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Direct Drive - Forward 424.4 mile/h 39.3 km/h
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Direct Drive - Reverse 15 mile/h 8 km/h
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Direct Drive - Reverse 28.9 mile/h 14.3 km/h
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Direct Drive - Reverse 315.8 mile/h 25.5 km/h
Benefits
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
Equipment Info
NOTE
Standard and optional equipment may vary. Consult your Cat dealer for details.
ELECTRICAL
Alarm, back-up
OPERATOR ENVIRONMENT
Graphical Information Display, displays real time operating information, performs calibrations and customizes operator settings
POWER TRAIN
Brakes, oil-cooled, multi-disc, service/secondary
OTHER
Automatic bucket lift kickout/positioner
Product videos
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