Caterpillar WHEEL LOADERS 988K - catalog of spare parts

 

CAT C18 ACERT ™ ENGINE

The Cat C18 ACERT engine is designed and tested to meet your most demanding applications while meeting Tier 4 Final / Stage IV or Tier 3 / Stage IIIA standards or Tier 2 / Stage II standards Equivalent emission standards.

Fully integrated electronic engine management works in conjunction with the entire machine so that your fuel moves on.

Use less fuel at idle with the engine off at idle.

Maximum durability with delayed engine shutdown.

WHEEL PLANETARY TRANSMISSION

Thanks to the new Advanced Productivity Electronic Control Shifting (APECS) transmission controls, it provides greater momentum on slopes and fuel economy, transmitting this momentum through switching points.

CONVERTER MOMENTS MOMENTS IMPELLER (ICTC)

Allow your operators to maximize efficiency by changing the wheel thrust of the machine and increasing the hydraulic power.

Reduced tire wear

Provides full throttle shifting to accelerate the cycle

Provides a smooth approach to discharge target to reduce losses and shorten cycle times.

CAT Clutch Torque Converter

Eliminates TC losses while reducing system heating

Improves movement speed

Reduces cycle time in load and transfer operations

ECONOMIC MODE

Ensuring maximum productivity and efficiency, every day every day. 988K systems are working hard to save fuel with advanced technology. Using an on-demand choke, operators maintain normal operation with the left pedal and attachments, while the 988K controls the engine speed.

Provides the same control and feel to our traditional throttle lock function.

The effectiveness of manual throttle control and ergonomics of the throttle lock.

Reduced fuel consumption by up to 20% compared to 988H.

RELIABLE STRUCTURES

Your bottom line is enhanced by very durable structures that achieve multiple life cycles and withstand the toughest loading conditions.

Rear frame full box section resists torsional shocks and twisting.

Reinforced steering cylinder mounts effectively transfer the steering load to the frame.

The mounting axis has been optimized to enhance structural integrity.

The lower hitch pin, frame and bearing size have been increased to increase service life.

LIFTING WEAPON

Excellent visibility at the edges of the bucket and working area due to the design of the Z-shaped bar

High loads from the load are absorbed by durable steel lifting arms.

Increase strength at key points through the use of monolithic castings.

Lifting levers relieve stress, increase durability and extend repair time.

FRONT COMMUNICATION

To ensure long life and reliability, the hinge joints are designed with oiled pins and an automatic lubrication system available at the factory.

INTEGRATED TRANSMISSION MANAGEMENT AND CONTROL SYSTEM (STIC ™)

Experience maximum responsiveness and control with STIC, which combines the choice of direction, gear selection and steering in one lever.

A simple side-to-side movement turns the machine right or left, minimizing operator movement.

Easy to manage finger gear selection.

Smoother, faster cycles and less operator fatigue through the use of built-in controls with minimal effort.

WHEEL PLANETARY TRANSMISSION

Creating your success starts with a best-in-class powertrain designed specifically for mining.

Consistent, smooth switching and efficiency thanks to embedded electronic controls using advanced Electronic Performance Management Strategy (APECS).

Long service life and reliability due to heat treatment of equipment and metallurgy.

Four speeds forward and three backwards to fit your application.

CAT C18 ACERT ENGINE

Durability and efficiency at the heart of your 988K is the Cat C18 ACERT engine. Optimum performance is achieved through the use of a 6-cylinder four-stroke design.

Optimized performance and fast engine response with electronic control module.

Reliable performance with full control of injection time, duration and pressure with injection of an electronically controlled electronic unit (MEUI ™).

Longer engine life and improved fuel efficiency at lower rated speeds

Designed to meet the requirements of Level 4 Final / Stage IV OR Level 3 / Equivalent Stage IIIA OR Level 2 / Standards Stage II Equivalent emission.

IMPELLER (ICTC) Clutch Torque Converter And RIMPULL (RCS) CONTROL SYSTEM

Reduce your cost per ton using advanced ICTC and RCS for modulated thrust.

Reduce slippage and tire wear by modulating the thrust from 100 to 25 percent while simultaneously depressing the left pedal. After reaching 25% of the traction effort, the left pedal engages the brake.

Reduce the likelihood of wheel slippage without reducing hydraulic efficiency with RCS.

Improved fuel efficiency in certain applications thanks to our lock-up clutch torque converter for direct drive.

POSITIVE FLOW CONTROL HYDRAULICS

Increase efficiency with our positive flow control (PFC) hydraulic system. PFC has simultaneous control of the pump and valve. Optimizing pump control, the flow of hydraulic oil is proportional to the movement of the lever of the unit.

A fast, productive cycle is provided by a fully variable pump unit.

Increased bucket sensitivity and control by increasing hydraulic response.

Stable performance and efficiency with less heating of the system.

Full hydraulic flow up to 1,400 engine revolutions is provided by flow separation technology.

ELECTRO-HYDRAULIC CONTROL

Operators increase productivity with our responsive guns feature.

Work comfortably through the electronically controlled stops of the hydraulic cylinder.

Handle easy-to-use soft locks.

It is convenient to install automatic withdrawable guns from the cab.

STEERING SYSTEM

The loader’s confident operation starts with precise machine control, provided by the load-sensing 988K hydraulic steering system.

Increase efficiency with our variable displacement piston pumps.

Achieve precise positioning for easy loading in hard-to-reach places with 43 degrees of steering joint.

Enhance operator comfort with integrated steering and transmission functions.

FILTRATION SYSTEM

Take advantage of the increased performance and reliability of your hydraulic system with our state-of-the-art filtration system.

The body of the drain screens.

Hydraulic oil cooler return cooling filter.

Pilot filter.

Reflex screens inside the hydraulic tank.

Axle oil cooler screens, if any.

STATION OPERATOR

Your operators can work more efficiently and feel comfortable with our cab features that are tailored to customer requirements.

ENTRANCE AND EXIT

Easily and safely enter and exit the cab thanks to new ergonomic features.

Fold STIC steering gear / armrest.

Reduced access angle to the stairs.

Standard staircase lighting.

CAT COMFORT SERIES III SEAT

Increase comfort and reduce operator fatigue with the Cat Comfort Series III seat.

The design of the middle part of the back and very thick contour pads.

Air suspension system.

Easily accessible seat levers and controls for adjustment in six directions.

Installed on the seat module of the unit and the steering mechanism STIC, which moves with the seat.

Retractable seat belt width 76 mm (3 inches).

CONTROL PANEL

The ergonomic layout of the switches and the information display ensure the comfort of your operator every day.

Large backlit membrane switches feature LED activation indicators.

The switches have ISO symbols for quick identification of functions.

An on-off toggle switch activates an electro-hydraulic parking brake.

TECHNOLOGICAL SOLUTIONS

Integrated electronics provide a flexible level of information for both the site and the operator. This integration creates a smart machine and a more informed operator, maximizing the performance of both.

INFORMATION DISPLAY

We are working hard to help our customers and operators work best with our newly updated touch-screen information display.

Intuitive controls and easy navigation with our advanced user interface.

Reduce maintenance time by informing operators about machine systems.

Fast on-the-fly weighing with the Cat.

CAT PRODUCT LINK ™

Remove guesses from asset management via remote monitoring of Product Link.

Remote access to information through an easy-to-use interface VisionLink®.

Increase uptime by staying abreast of machine systems and diagnostic codes.

Tracking machine using utilization rates, fuel consumption and payload.

Be aware of the location of the machine, the hours the meter is running and the status of reporting.

LIFE MANAGEMENT SYSTEM (VIMS ™)

Connect directly to the machine to access a wide range of sensory information and advanced machine data.

Report performance with payload and duty cycle segmentation.

Determine operator training needs using performance data.

Detailed data logging machine parameters and diagnostic codes.

Track machine sensor information using trend analysis and bar charts to track machine status

WE CAN HELP YOU TO MAKE SURE YOU 988K HAS THE FEATURES OF THE DESIGN TO REDUCE YOUR TIME.

Safe and convenient service with terrestrial or platform access and grouped service points.

Swing doors on both sides of the engine compartment provide easy access to important daily maintenance checks.

Ecology drains for ease of maintenance and to prevent spills of potential environmental pollutants.

Reduce downtime with VIMS system notifications so your operators and technicians can solve any problems before a crash.

Ground level access to transmission control valves.

SUPPORTING LEGENDARY CAT

Dear partner, your Cat dealer is always at your service.

Preventive maintenance programs and guaranteed service contracts.

Best-in-class parts availability.

Increase your effectiveness with operator training.

Original repaired Cat parts.

SECURITY

We are constantly improving our products to provide a safe working environment for the operator and those who work in your workplace.

ACCESS MACHINE

Left and right stairs with an angle of 45 degrees increase operator safety at the entrance and exit of 988K.

Continuous tracks with non-slip surfaces are designed for service areas.

Continually maintain three points of contact across service areas at ground level or platform.

TRANSPARENCY

Optional heated mirrors provide improved visibility for safe operation.

Standard Cat vision or optional Cat Detect with radar increases operator awareness around the machine.

Additional HID or LED lights provide excellent visibility to the working space.

Optional alarm beacons on the cockpit.

OPERATOR ENVIRONMENT

Vibration reduction for the operator due to insulated cab supports and seats, attachments and steering

Low noise level in the cabin.

Sealed cabin with filtered air.

Standard seat belts 76 mm (3 inches) on the operator`s seat.

REDUCTION OF ENVIRONMENTAL INFLUENCE

Sustainable development is designed and built into the functions of our 988K.

Burns up to 20% less fuel than the previous model to minimize carbon dioxide emissions.

Turning the engine off at idle can help you save fuel by avoiding unnecessary idling.

Reduce waste with our maintenance-free batteries.

Reusable Cat 988 is one of the most converted products. To help extend the life of the machine, Caterpillar offers a range of sustainable options, such as our Reman and Certified Rebuild programs. In these programs, reusable or remanufactured components can provide cost savings of 40–70 percent, which reduces operating costs and benefits the environment.

Caterpillar offers retrofit packages that allow you to use new features on older machines and maximize your resources. And when you complete the Cat Certified Rebuild program, these upgrade kits are part of the recovery process.

EFFECTIVE COMBINATION

For full trucks with minimal loading time, an efficient loading / transport system starts with perfect fit. Cat wheel loaders are combined with Cat off-road dumpers to maximize the amount of material being moved with minimal operating cost per ton. Model 988K, equipped with a standard hitch, will pass 770 (36 tons / 40 tons) in 3 passes and 772 (45 tons / 50 tons) in 4 passes. Equipped with a high-lift attachment, the 988K is capable of loading 773 (56 tons / 61.7 tons) in 5 passes and 775 (64 tons / 70 tons) in 6 passes.

BUCKET GROUND INSTRUMENTS

Increase your loader`s productivity and protect your investment in buckets with our ground tools (GET). Your knowledgeable Cat dealer will work with you to understand your application and the GET needs that best suit you.

LEADING SERIES

Performance buckets are characterized by an optimized profile that maximizes material retention and minimizes digging time, which leads to a significant increase in performance and fuel efficiency. All 988K buckets are manufactured with the Performance series design.

ROCK BUCKET

Scopes: face loading of densely condensed pit materials.

BUCKET GENERAL PURPOSE

Application areas: bulk solids loading.

GET OPTIONS

Many GET options are available to customize your 988K for your application, such as:

Side defenders.

General responsibilities and penetration tips.

Standard and half boom segments.

OPERATING COSTS

Customer data shows that Cat wheel loaders are among the most economical machines in the industry. Several features contribute to this excellent fuel efficiency:

Performance Series Buckets - Provides faster filling times and better material retention, ultimately reducing cycle time while improving performance and fuel efficiency.

Hydraulics with positive flow control - provides only the hydraulic flow required for attachments and steering systems to increase fuel efficiency and increase traction.

ACERT Engine - Advanced engine management maximizes power and efficiency.

Eco mode - thanks to throttle on demand, eco mode optimizes power for maximum fuel economy with minimal impact on production.

Shutting down the engine at idle - automatic shutdown of the engine and electrical system saves fuel.

Torque converter lock - transfer more power to ground and optimize fuel consumption in all applications.

Advanced Electronic Performance Management Strategy (APECS) - All new APECS gearbox controls provide greater momentum on slopes and fuel savings, transferring this momentum through shift points. The configuration of the machine, the operator`s technique and the location of the working platform can affect fuel consumption.

Machine Configuration — Choose the right tool and type of tire for your application. Provide proper inflation pressure. Use the economy mode setting for maximum efficiency.

Platform Layout - Locate the loading targets in the correct position. Avoid traveling more than 1.5 tire turns during truck loading cycles. Reduce transport distance for loading and carrying cycles, optimizing the layout of the working area.

Loading bucket - loading in first gear. Quickly lift and tilt the bucket and do not perform a “swinging” movement. Avoid locking the lift lever and use the impeller clutch.

Loading a truck or bunker - Do not raise the working tool above the required level. Maintain low engine speeds and discharge in a controlled manner.

Idling - engage the parking brake to activate the engine idling control system.ENGINE

Net Power	541.0 HP
Engine Model	Cat® C18 ACERT™
Bore	5.7 in
Stroke	7.2 in
Displacement	1105.0 in³
Torque Rise	58.0 %
Rated Speed	1,700 rpm
Peak Torque - 1,200 rpm	2104.0 lb/ft
Net Power - SAE J1349	541.0 HP
Peak Power Speed	1,500 rpm
Peak Power Speed - 1,500 rpm - Gross - ISO 14396	580.0 HP
Gross - ISO 14396	580.0 HP
Peak Power Speed - 1,500 rpm - Gross - SAE J1995	588.0 HP
Emissions	U.S. EPA Tier 4 Final/EU Stage IV OR Tier 3/Stage IIIA Equivalent OR Tier 2/Stage II Equivalent
Peak Power Speed - 1,500 rpm - Net Power - SAE J1349	541.0 HP

OPERATING SPECIFICATIONS

Operating Weight	112574.0 lb
Bucket Capacity Range	4.7-13 m3 (6.2-17 yd3)
Rated Payload - Quarry Face	12.5 t
Cat Truck Match - High Lift	773-775
Rated Payload - Loose Material	16.0 t
Cat Truck Match - Standard	770-772

TRANSMISSION

Transmission Type	Cat planetary power shift
Forward - 1	4.0 mile/h
Forward - 2	7.2 mile/h
Forward - 3	12.7 mile/h
Forward - 4	21.6 mile/h
Reverse - 1	4.7 mile/h
Reverse - 2	8.3 mile/h
Reverse - 3	14.4 mile/h
Direct Drive - Reverse 2	8.9 mile/h
Direct Drive - Reverse 3	15.8 mile/h
Direct Drive - Forward 2	7.8 mile/h
Direct Drive - Reverse 1	5.0 mile/h
Direct Drive - Forward 1	Lock-up disabled
Direct Drive - Forward 3	13.9 mile/h
Direct Drive - Forward 4	24.4 mile/h

HYDRAULIC SYSTEM - LIFT/TILT

Maximum Flow	13.7 gal/min
Maximum Flow at 1,400-1,860 rpm	153.0 gal/min
Lift/Tilt System	Variable displacement piston
Cylinders, Double Acting - Tilt, Bore and Stroke	269 mm × 685 mm (8.7 in × 27 in)
Relief Valve Setting	551.0 psi
Relief Valve Setting - Lift/Tilt	4757.0 psi
Pilot System	Variable displacement piston
Cylinders, Double Acting - Lift, Bore and Stroke	210 mm × 1050 mm (8.7 in × 41.3 in)
Lift/Tilt System - Circuit	EH- Positive Flow Control, Flow Sharing

SERVICE REFILL CAPACITIES

Fuel Tank	188.0 gal (US)
Cooling System	31.7 gal (US)
Crankcase	15.9 gal (US)
Transmission	31.7 gal (US)
Hydraulic System - Tank Only	63.4 gal (US)
Differential - Final Drives - Rear	49.1 gal (US)
Hydraulic System Factory Fill	125.5 gal (US)
Diesel Exhaust Fluid Tank (For Tier 4 Final/Stage IV Only)	8.7 gal (US)
Differential - Final Drives - Front	49.1 gal (US)
Coolant (Validated by Test Cell Fill Quantities)	33.0 gal (US)
Transmission - Validated by Test Cell Fill Quantities	29.0 gal (US)

BUCKETS

Bucket Capacities

4.7-13 m3 (6.2-17 yd3)

AXLES

Front	Fixed
Rear	Trunnion
Oscillation Angle	13°

BRAKES

Brakes

SAE J1473 OCT90, ISO 3450:1992

HYDRAULIC SYSTEM - STEERING

Steering System - Pump	Piston, variable displacement
Total Steering Angle	86°
Maximum Flow	71.3 gal/min
Relief Valve Setting - Steering	4351.0 psi
Steering Cycle Times - High Idle	3.4 s
Steering System - Circuit	Pilot, load sensing
Steering Cycle Times - Low Idle	5.6 s

HYDRAULIC CYCLE TIME (1,400-1,860 RPM)

Total Hydraulic Cycle Time - Empty Bucket	18.2 s
Lower Float Down	3.5 s
Rack Back	4.5 s
Raise	8.0 s
Dump	2.2 s

SOUND PERFORMANCE - TIER 4 FINAL/STAGE IV - STANDARD

Operator Sound Level (ISO 6396)	72.0 dB(A)
Machine Sound Level (ISO 6395)	111.0 dB(A)

SOUND PERFORMANCE - TIER 4 FINAL/STAGE IV: SUPPRESSION

Machine Sound Level (ISO 6395)	109.0 dB(A)
Operator Sound Level (ISO 6396)	72.0 dB(A)

SOUND PERFORMANCE - TIER 2 EQUIVALENT/STAGE II: SUPPRESSION

Operator Sound Level (ISO 6396)	72.0 dB(A)
Machine Sound Level (ISO 6395)	110.0 dB(A)

SOUND PERFORMANCE - TIER 2 EQUIVALENT/STAGE II: STANDARD

Machine Sound Level (ISO 6395)	112.0 dB(A)
Operator Sound Level ( ISO 6396)	73.0 dB(A)

Specifications

Engine

Net Power 541hp

Rated Speed 1700rpm

Torque Rise 58%

Displacement 1105cu in

Bore 5.7in

Stroke 7.2in

Emissions

U.S. EPA Tier 4 Final/EU Stage IV OR Tier 3/Stage IIIA Equivalent OR Tier 2/Stage II Equivalent

Net Power - SAE J1349 541hp

Engine Model Cat C18 ACERT

Peak Torque - 1,200 rpm 2104lb ft

Gross - ISO 14396 580hp

Peak Power Speed 1,500 rpm

Peak Power Speed - 1,500 rpm - Gross - ISO 14396 580hp

Peak Power Speed - 1,500 rpm - Gross - SAE J1995 588hp

Peak Power Speed - 1,500 rpm - Net Power - SAE J1349 541hp

Operational

Operating Weight 112574lb

Transmission

Transmission Type Cat planetary power shift

Forward - 1 4mph

Forward - 2 7.2mph

Forward - 3 12.7mph

Forward - 4 21.6mph

Reverse - 1 4.7mph

Reverse - 2 8.3mph

Direct Drive - Forward 3 13.9mph

Direct Drive - Reverse 3 15.8mph

Direct Drive - Forward 4 24.4mph

Direct Drive - Forward 2 7.8mph

Direct Drive - Reverse 2 8.9mph

Direct Drive - Forward 1 Lock-up disabled

Direct Drive - Reverse 1 5mph

Reverse - 3 14.4mph

Buckets

Bucket Capacities 4.7-13 m3 (6.2-17 yd3)

Axles

Front Fixed

Rear Trunnion

Oscillation Angle 13 degrees

Brakes

Brakes SAE J1473 OCT90, ISO 3450:1992

Operating Specifications

Bucket Capacity Range 4.7-13 m3 (6.2-17 yd3)

Cat Truck Match - Standard 770-772

Cat Truck Match - High Lift 773-775

Rated Payload - Quarry Face 27557.8lb

Rated Payload - Loose Material 35274lb

Service Refill Capacities

Cooling System 31.7gal

Fuel Tank 188gal

Crankcase 15.9gal

Transmission 31.7gal

Differential - Final Drives - Front 49.1gal

Differential - Final Drives - Rear 49.1gal

Hydraulic System Factory Fill 125.5gal

Hydraulic System - Tank Only 63.4gal

Diesel Exhaust Fluid Tank (For Tier 4 Final/Stage IV Only) 8.7gal

Coolant (Validated by Test Cell Fill Quantities) 33gal

Transmission - Validated by Test Cell Fill Quantities 29gal

Hydraulic System - Lift/Tilt

Lift/Tilt System - Circuit EH- Positive Flow Control, Flow Sharing

Relief Valve Setting - Lift/Tilt 4757 psi

Cylinders, Double Acting - Lift, Bore and Stroke 210 mm 1050 mm (8.7 in 41.3 in)

Cylinders, Double Acting - Tilt, Bore and Stroke 269 mm 685 mm (8.7 in 27 in)

Pilot System Variable displacement piston

Lift/Tilt System Variable displacement piston

Relief Valve Setting 551 psi

Maximum Flow 13.7 gal/min

Maximum Flow at 1,400-1,860 rpm 153 gal/min

Hydraulic System - Steering

Steering System - Circuit Pilot, load sensing

Steering System - Pump Piston, variable displacement

Total Steering Angle

Relief Valve Setting - Steering 4351 psi

Steering Cycle Times - Low Idle 5.6 s

Steering Cycle Times - High Idle 3.4 s

Maximum Flow 71.3 gal/min

Hydraulic Cycle Time (1,400-1,860 rpm)

Rack Back 4.5 s

Raise 8 s

Dump 2.2 s

Lower Float Down 3.5 s

Total Hydraulic Cycle Time - Empty Bucket 18.2 s

Sound Performance - Tier 2 Equivalent/Stage II: Standard

Machine Sound Level (ISO 6395) 112 dB(A)

Operator Sound Level ( ISO 6396) 73 dB(A)

Sound Performance - Tier 2 Equivalent/Stage II: Suppression

Operator Sound Level (ISO 6396) 72 dB(A)

Machine Sound Level (ISO 6395) 110 dB(A)

Sound Performance - Tier 4 Final/Stage IV - Standard

Operator Sound Level (ISO 6396) 72 dB(A)

Machine Sound Level (ISO 6395) 111 dB(A)

Sound Performance - Tier 4 Final/Stage IV: Suppression

Operator Sound Level (ISO 6396) 72 dB(A)

Machine Sound Level (ISO 6395) 109 dB(A)