988K Large Wheel Loader - Steel Mill Arrangement

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METRIC

988K Steel Mill Arrangement

OVERVIEW

FEATURES AT A GLANCE

SPECIFICATIONS

PRODUCT BROCHURES AND DOWNLOADS

TOOLS AND EXPERT HELP

MEDIA GALLERY

KEY SPECS

Net Power 403.0kW541.0hp
Engine Model Cat® C18 ™
Net Power - SAE J1349:2011 403.0kW541.0hp

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OVERVIEW

FEATURES AT A GLANCE

POWERFUL EFFICIENCY

The Cat C18 engine is built and tested to meet your most demanding applications while meeting U.S. EPA Tier 4 Final/EU Stage IV, 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.

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.

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.

Eliminates TC losses while lowering system heat.
Improves travel speeds.
Reduces cycle times in load and carry operations.

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.

LONG TERM VALUE AND DURABILITY

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.

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.

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.

PROVEN RELIABILITY

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 help reduce operator fatigue through the use of low effort integrated controls.

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.

Durability and efficiency at the heart of your 988K comes from the Cat C18 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, Tier 2 Equivalent emission standards.

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.

PERFORMANCE AND PRODUCTIVITY

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.

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.
Pilot filter.
Return screens inside hydraulic tank.
Axle oil cooler screens if equipped.

OPERATOR COMFORT AND CONTROL

Your operators can work more efficiently and stay comfortable with our customer-inspired cab features. 988K Steel Mill Wheel Loader

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.

Enhance comfort and help 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.

PRODUCTIVITY WITH TECHNOLOGY

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. 988K Steel Mill Wheel Loader

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.

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. Features:

Production Summary
Machine Utilization
Productive Cycle Time
Loader Payload Summary
Fuel Usage Summary

SAVE ON SERVICE AND MAINTENANCE

Safe and convenient service with ground level or platform access and grouped service points.
Swing-out doors on both sides of the engine compartment provide easy access to important daily service checks.
Ecology drains for ease of service and prevention of spilling potential environmental contaminants.
Reduce downtime with VIMS system notifications so your operators and technicians can resolve any problems before failure.
Ground level access to transmission control valves.

TOP-TIER SERVICE AND 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.

SAFETY FIRST

We are continuously 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.

HANDLE THE HEAT

Added protection even where you can't see it.

Double thickness fuel tank walls.
Silicone axle seals for extreme temperature operation.
Machine electronic control modules located in the cab safe from heat and dust.
Reduced rear axle oscillation for tire chain compatibility.
Flame resistant EcoSafe hydraulic fluid available as an option.

A comfortable working environment ready for your attachments.

Cab glass mounted in rubber seals for easy replacement.
Metal backed side mirrors to hold up to high temperatures.
Steel cab roof and floor for protection on the top and bottom.
Reinforced platform ready for heavy fire suppression tanks.
Damage resistant solid steel rear access steps.

Keep the machine clean and cool in a hot environment.

Swing open radiator for easy cleaning.
Six fins per inch radiator to keep material from building up.
Auto-reversing fan to help keep cooling efficiency high.
Easy access to cooling cores through hinged side doors with perforated screens.

Steel mills can be a harsh environment. Extra guarding for critical machine functions keep your operation running.

Exposed wiring and hoses are covered with heat resistant wrapping.
Steel guard to protect the tilt cylinder rod from falling debris.
Electro hydraulic parking brake override system.
Transmission override system for redundancy.
Sealed cover for Diesel Exhaust Fluid fill (Tier 4).

ATTACHMENTS TO MEET YOUR NEEDS

Enhance the productivity of your loader and protect your investment in buckets with our Ground Engaging Tools (GET). Your knowledgeable Cat dealer will work with you to understand your application and needs for the GET that is best for you.

Performance Series Buckets feature an optimized profile maximizing material retention and minimizing dig time, translating into significant productivity and fuel efficiency improvements. All 988K buckets are manufactured with the Performance Series design.

Serrated spade edge bucket with abrasion resistant material. Excellent penetration combined with weld-on self sharpening serrated segments. Straight edge bucket with J600 tooth adapters and replaceable weld-on segments. Extra material and robust design for digging and handling slag.

Thicker shell and base edge.
Full width rear edge for extra strength.

PERFORMANCE WITH LESS FUEL

Data from customer machines show Cat wheel loaders are among the most fuel efficient machines in the industry. Several features contribute to this excellent fuel efficiency:

Performance Series Buckets - Deliver faster fill times and better material retention, ultimately reducing cycle times while improving productivity and fuel efficiency.
Positive Flow Control Hydraulics - Provides only the hydraulic flow required by the implement and steering systems for improved fuel efficiency and greater rimpull.
Engine - Advanced engine controls maximizes power and efficiency.
Economy Mode - Featuring On Demand Throttle, Economy Mode optimizes power for maximum fuel savings with minimal impact on production.
Engine Idle Shutdown - Automatic engine and electrical system shutdown conserves fuel.
Lock up Torque Converter - Transfers more power to the ground and optimizes fuel efficiency in all applications.
Advanced Productivity Electronic Control Strategy (APECS) - All new APECS transmission controls provides greater momentum on grades and fuel savings by carrying that momentum through the shift points.

Machine configuration, operator technique, and job site layout can impact fuel consumption.

Machine Configuration - Select the correct work tool and tire type based on machine application. Ensure proper inflation pressures. Utilize the Economy Mode setting for maximum efficiency.
Job Site Layout - Spot loading targets in the right position. Avoid traveling more than 1.5 tire revolutions during truck loading cycles. Reduce transport distance for load and carry cycles by optimizing job site layout.
Loading Bucket - Load in first gear. Raise and tilt bucket quickly and do not use a “pumping” motion. Avoid lift lever detent and use impeller clutch.
Loading Truck or Hopper - Do not raise the work tool any higher than necessary. Keep engine rpm low and unload in controlled manner.
Idle - Set the parking brake to engage Engine Idle Management System.

SPECIFICATIONS

Net Power 403.0kW541.0hp
Engine Model Cat® C18 ™
Net Power - SAE J1349:2011 403.0kW541.0hp
Bore 145.0mm5.7in
Stroke 183.0mm7.2in
Displacement 18.1l1105.0in³
Torque Rise 58.0%58.0%
Rated Speed 1700/min
Peak Power Speed - 1,500 rpm - Gross - ISO 14396 432.0kW580.0hp
Gross - ISO 14396 432.0kW580.0hp
Peak Power Speed 1500/min
Peak Power Speed - 1,500 rpm - Gross - SAE J1995 439.0kW588.0hp
Peak Torque - 1,200 rpm 2852.0N·m2104.0lb/ft
Peak Power Speed - 1,500 rpm - Net Power - SAE J1349 403.0kW541.0hp
Emissions Einhaltung von EPA Tier 4 Final (USA)/Stufe V (EU), Tier-2-konform
Operating Weight 51062.0kg112574.0lb
Rated Payload 11.3t12.5t
Rated Payload - Standard 11.3t12.5t
Bucket Capacity Range 6.4-7.6 m3 (8.3-10 yd3)
Cat Truck Match - Standard 770-772
Cat Truck Match - High Lift 773-775
Rated Payload - High Lift 11.3t12.5t
Transmission Type Cat-Planetenlastschaltgetriebe
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
Pilot System Variable displacement piston
Relief Valve Setting - Main 3800.0kPa551.0psi
Maximum Flow 52.0l/min13.7gal/min
Cylinders, Double Acting - Tilt, Bore and Stroke 267 mm × 685 mm (10.5 in × 27.0 in)
Maximum Flow at 1,400-1,860 rpm 580.0l/min153.0gal/min
Cylinders, Double Acting - Lift, Bore and Stroke 210 mm × 1050 mm (8.3 in × 41.3 in)
Lift/Tilt System Variable displacement piston
Lift/Tilt System - Circuit EH- Positive Flow Control, Flow Sharing
Relief Valve Setting - Lift/Tilt 32800.0kPa4757.0psi
Fuel Tank 686.0l181.0gal (US)
Cooling System 120.0l31.7gal (US)
Crankcase 60.0l15.9gal (US)
Transmission 120.0l31.7gal (US)
Differential - Final Drives - Front 186.0l49.1gal (US)
Differential - Final Drives - Rear 186.0l49.1gal (US)
Hydraulic System - Tank Only 240.0l63.4gal (US)
Diesel Exhaust Fluid Tank (Tier 4) 33.0l8.7gal (US)
Hydraulic System Factory Fill 475.0l125.5gal (US)
Bucket Capacities 5.4-6.3 m3 (7.0-8.3 yd3)
Front Fixed
Rear Trunnion
Oscillation Angle ±6°
Brakes SAE J1473 OKT90, ISO 3450:1992
Steering System - Circuit Pilot, load sensing
Steering System - Pump Piston, variable displacement
Relief Valve Setting - Steering 30000.0kPa4351.0psi
Maximum Flow 270.0l/min71.3gal/min
Steering Cycle Times - Low Idle 5.6s5.6s
Total Steering Angle 80.0°80.0°
Steering Cycle Times - High Idle 3.4s3.4s
Rack Back 4.5s4.5s
Lower Float Down 3.5s3.5s
Raise 8.0s8.0s
Total Hydraulic Cycle Time - Empty Bucket 18.2s18.2s
Dump 2.2s2.2s
Operator Sound Level (ISO 6396) 71.0dB(A)71.0dB(A)
Machine Sound Level (ISO 6395) 111.0dB(A)111.0dB(A)
Operator Sound Level (ISO 6396) 70.0dB(A)70.0dB(A)
Machine Sound Level (ISO 6395) 109.0dB(A)109.0dB(A)