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.
Introduced in 1963, the 988 has been the industry leader for 50 years. Focused on helping our customers succeed, we have continued to build upon each new series. The 988K continues our legacy of reliability, performance, safety, operator comfort, serviceability, and efficiency.
Engine Model Cat C18 ACERT Emissions U.S. EPA Tier 4 Final/EU Stage IV Technology,Tier 2 Equivalent Rated Speed 1,700 rpm Peak Power Speed – Gross – ISO 14396 432 kW Peak Power Speed – Gross – SAE J1995 439 kW Peak Power Speed – Net Power – SAE J1349 403 kW Bore 145 mm Stroke 183 mm Displacement 18.1 L Peak Torque @ 1,200 rpm 2852 N·m Torque Rise 58%
Operating Weight 51 062 kg Rated Payload – Standard 11.3 tonnes Rated Payload – High Lift 11.3 tonnes Bucket Capacity Range 6.4-7.6 m3 Cat Truck Match – Standard 770-772 Cat Truck Match – High Lift 773-775
Lift/Tilt System – Circuit EH- Positive Flow Control, Flow Sharing Lift/Tilt System Variable displacement piston Maximum Flow at 1,400-1,860 rpm 580 L/min Relief Valve Setting – Lift/Tilt 32 000 kPa Cylinders, Double Acting: Lift, Bore and Stroke 220 mm × 911 mm Cylinders, Double Acting: Tilt, Bore and Stroke 220 mm × 1621 mm Pilot System Variable displacement piston Maximum Flow 52 L/min Relief Valve Setting 4000 kPa
HYDRAULIC CYCLE TIME
Rackback 4.5 Seconds Raise 8.0 Seconds Dump 2.2 Seconds Lower Float Down 3.5 Seconds Total Hydraulic Cycle Time (empty bucket) 18.2 Seconds
HYDRAULIC SYSTEM – STEERING
Steering System – Circuit Pilot, load sensing Steering System – Pump Piston, variable displacement Maximum Flow 270 L/mim Relief Valve Setting – Steering 30 000 kPa Total Steering Angle 86° Steering Cycle Time (high idle) 3.4 sec Steering Cycle Time (low idle) 5.6 sec
SERVICE REFILL CAPACITIES
Fuel Tank 712 L Cooling System 120 L Crankcase 60 L Diesel Exhaust Fluid Tank 33 L Transmission 120 L Differentials and Final Drives – Front 186 L Differentials and Final Drives – Rear 186 L Hydraulic System Factory Fill 475 L
Front Fixed Rear Trunnion Oscillation Angle 13°
Brakes SAE J1473 OCT90,ISO 3450:1992
Operator Sound Level (ISO 6396) – Standard 71 dB(A) Operator Sound Level (ISO 6396) – Suppression 70 dB(A) Machine Sound Level (ISO 6395) – Standard 111 dB(A) Machine Sound Level (ISO 6395) – Suppression 109 dB(A)
Delivering fuel efficiency you demand through integrated machine systems.
Enabling maximum productivity and efficiency, all day every day.
The 988K systems work hard to save you fuel through advanced technologies. Utilizing On Demand Throttle, operators maintain normal operation with the left pedal and implements while the 988K manages the engine speed.
Provides similar control and feel to our traditional throttle lock feature.
Efficiency of manual throttle and the ergonomics of throttle lock.
Reduced fuel consumption by up to 20% compared to the 988H.
CAT C18 ACERT™ ENGINE
The Cat C18 ACERT engine is built and tested to meet your most demanding applications while meeting U.S. EPA Tier 4 Final/ EU Stage IV Technology, Tier 2 Equivalent emission standards.
Fully integrated electronic engine controls works in concert with the entire machine to make your fuel go farther.
Use less fuel idling with Engine Idle Shutdown.
Maximized durability with Delayed Engine Shutdown.
CAT PLANETARY POWERSHIFT TRANSMISSION
Featuring all new Advanced Productivity Electronic Control Shifting (APECS) transmission controls provides greater momentum on grades and fuel savings by carrying that momentum through the shift points.
IMPELLER CLUTCH TORQUE CONVERTER (ICTC)
Enable your operators to maximize efficiency by varying machine rimpull while putting more horsepower to hydraulics.
Reduced tire wear
Enables full throttle shifts for faster cycle times
Provides smooth approach to the dump target for less spillage and faster cycle times.
CAT TORQUE CONVERTER WITH LOCK-UP CLUTCH
Eliminates TC losses while lowering system heat
Improves travel speeds
Reduces cycle times in load and carry operations
Best built for the toughest conditions.
Excellent visibility to the bucket edges and work area through a Z-bar design.
High load stresses are absorbed by the solid steel lift arms.
Enhance strength in key pin areas through the use of one piece castings.
Stress relieved lift arms increase durability and lengthen time to repair.
Your bottom line is improved by highly durable structures that achieve multiple life cycles and withstand the toughest loading conditions.
Full box-section rear frame resists torsional shock and twisting forces.
Heavy-duty steering cylinder mounts efficiently transmit steering loads into the frame.
Axle mounting has been optimized for increased structural integrity.
Lower hitch pin, frame plate, and bearing size have been increased for longer life.
To ensure long life and reliability, the linkage pin joints feature a greased pin design with an auto lube system attachment available from the factory.
STEERING AND TRANSMISSION INTEGRATED CONTROL SYSTEM (STIC™)
Experience maximum responsiveness and control with STIC that combines directional selection, gear selection and steering into a single lever.
Simple side-to-side motion turns machine right or left, minimizing operator movements.
Easy to operate finger controlled gear selection.
Smoother, faster cycles and less operator fatigue through the use of low effort integrated controls.
CAT PLANETARY POWERSHIFT TRANSMISSION
Building your success begins with a best-in-class transmission designed specifically for mining applications.
Consistent, smooth shifting and efficiency through integrated electronic controls that utilize Advanced Productivity Electronic Control Strategy (APECS).
Long life and reliability through heat treat gear and metallurgy.
Four forward and three reverse speeds to match your application.
CAT C18 ACERT ENGINE
Durability and efficiency at the heart of your 988K comes from the Cat C18 ACERT Engine. Optimum performance is built in through the use of a 6 cylinder, four-stroke design.
Optimized performance and quick engine response with an electronic control module.
Reliable efficiency with complete control over injection timing, duration and pressure with Mechanically Actuated Electronic Unit Injection (MEUI™).
Extended engine life and improved fuel efficiency with reduced rated speed.
Designed to meet U.S. EPA Tier 4 Final/EU Stage IV Technology, Tier 2 Equivalent emission standards.
Move material more efficiently with improved power and control.
IMPELLER CLUTCH TORQUE CONVERTER (ICTC) AND RIMPULL CONTROL SYSTEM (RCS)
Lower your cost per ton utilizing advanced ICTC and RCS for modulated rimpull.
Reduce tire slippage and wear by modulating rimpull from 100 to 25 percent while depressing left pedal. After 25 percent rimpull is achieved the left pedal applies the brake.
Reduce the potential for wheel slippage without reducing hydraulic efficiency with RCS.
Improve fuel efficiency in certain applications with our lock-up clutch torque converter providing direct drive.
Productivity enabling you to move more and make more.
POSITIVE FLOW CONTROL HYDRAULICS
Increase efficiency through our Positive Flow Control (PFC) Hydraulic System. PFC has concurrent pump and valve control. By optimizing pump control, hydraulic oil flow is proportionate to implement lever movement.
Fast, productive cycles are enabled by the fully variable implement pump.
Increase bucket feel and control through increased hydraulic response.
Consistent performance and efficiency with lower system heat.
Full hydraulic flow down to 1,400 engine rpm enabled by flow sharing technology.
ELECTRO HYDRAULIC CONTROLS
Operators increase productivity with our responsive implements feature.
Operate comfortably through electronically controlled hydraulic cylinder stops.
Handle easy-to-use soft detent controls.
Conveniently set automatic implement kickouts from inside the cab.
Confident loader operation starts with precise machine control enabled by the 988K’s load sensing hydraulic steering system.
Increase efficiency with our variable displacement piston pumps.
Achieve precise positioning for easy loading in tight areas with 43 degrees of steering articulation.
Enhance operator comfort with integrated steering and transmission control functions.
Benefit from extended performance and reliability of your hydraulic system with our advanced filtration system.
Case drain screens.
Hydraulic oil cooler return filter.
Return screens inside hydraulic tank.
Axle oil cooler screens if equipped.
Your operators can work more efficiently and stay comfortable with our customer-inspired cab features.
ENTRY AND EXIT
Enter and exit the cab easily and safely with these newly designed, ergonomic features.
Fold up STIC steer/armrest.
Reduced access stairway angles.
Standard stairway lighting.
CAT COMFORT SERIES III SEAT
Enhance comfort and reduce operator fatigue with Cat Comfort Series III seat.
Mid back design and extra thick, contoured cushions.
Air suspension system.
Easy-to-reach seat levers and controls for six way adjustments.
Seat-mounted implement pod and STIC steer that moves with the seat.
76 mm (3 in) wide retractable seat belt.
Ergonomic placement of switches and Information display keep your operators comfortable all day every day.
Large backlit membrane switches feature LED activation indicators.
Switches feature ISO symbols for quick function identification.
Two position rocker switch activates the electro hydraulic park brake.
Your operator’s productivity is enhanced with our clean, comfortable cab environment.
Experience reduced vibrations from isolation cab mounts and seat air suspension.
Maintain desired cab temperature with automatic temperature controls.
Pressurized cab with filtered air.
Sound level reduced to a quiet 71 dB(A).
Convenient floor storage tray/lunch box.
Greater productivity through
The 988K electronic systems have been completely integrated to function as one machine. This integration creates a smart machine and more informed operator, maximizing the productivity of both.
CAT PRODUCT LINK™
Cat Product link allows remote monitoring of equipment to improve overall fleet management effectiveness. Events and diagnostic codes, as well as hours, fuel, idle time and other information are transmitted to a secure web based application, VisionLink™. VisionLink includes powerful tools to convey information to users and dealers, including mapping, working and idle time, fuel level and more.
We have worked hard to help our customers and operators perform at their best through our Vital Information Management System (VIMS 3G).
Easy-to-view graphical information display features a large touch screen interface.
Intuitive operation and easy navigation with our enhanced user interface.
Decrease service time by keeping operators informed about machine system malfunction or operation.
PAYLOAD CONTROL SYSTEM
Increase your efficiency with our Payload Control System 3.0.
Quick payload measurement with on-the-go weighing.
Comprehensive record accuracy of machine performance.
Optional printer available for cab.
Impact your bottom line through improved machine performance with Cycle Timer. Each loading segment time can be analyzed to help you achieve more efficient operation.
Productive Cycle Time
Loader Payload Summary
Fuel Usage Summary
LEGENDARY CAT DEALER SUPPORT
A valued partner, your Cat dealer is available whenever you need them.
Preventive maintenance programs and guaranteed maintenance contracts.
Best-in-class parts availability.
Improve your efficiency with operator training.
Genuine Cat Remanufactured parts.
Making your safety our priority.
We are constantly improving our products in an effort to provide a safe work environment for the operator and those who work on your job site.
Left and right hand stairs with 45 degree angle enhance safety for operators getting on and off the 988K.
Continuous walkway with non-skid surfaces are designed into the service areas.
Maintain three points of contact at all times through ground level or platform accessible service areas.
Optional heated mirrors ensure enhanced visibility for safe operation.
Standard Cat Vision or optional Cat Detect with radar increase operator awareness around the machine.
Optional HID or LED lights provide excellent workspace visibility.
Optional cab mounted LED warning beacons.
Reduced vibrations to the operator with isolated cab mounts and seat mounted implement and steering controls.
Low interior sound levels.
Pressurized cab with filtered air.
Standard 76 mm (3 in) seat belts on the operator seat.
- 988K Motor Graders specalogs Click here to download
For more information please call us at this number:
TOLL FREE :
1800 419 3356