Cat Wheel Loaders 988 | Mining

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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.

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Specifications

Air Conditioning System

Air Conditioning

The 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

Front

Fixed
Rear

Trunnion
Oscillation Angle

13 °

Brakes

Brakes

ISO 3450:2011

Buckets

Bucket Capacities

4.7-13 m3 (6.2-17 yd3)

Dimensions (Approximate) - High Lift Linkage

Ground to Top of ROPS

13.8 ft 4202 mm
Ground to Top of Exhaust Stacks

14.8 ft 4521 mm
Ground to Top of Hood

10.9 ft 3334 mm
Rear Axle - Centerline to Bumper

10.5 ft 3187 mm
Front Axle Centerline to Bucket Tip

15.3 ft 4661 mm
Wheel Base

14.9 ft 4550 mm
Maximum Overall Length

40.7 ft 12398 mm
Ground to Lower Hitch Clearance

1.9 ft 568 mm
Clearance at Maximum Lift

13.3 ft 4043 mm
B-Pin Height - Maximum Lift

19.3 ft 5887 mm
Maximum Overall Height - Bucket Raised

25.8 ft 7849 mm
Reach - Maximum Lift

6.8 ft 2062 mm

Dimensions (Approximate) - Standard Lift Linkage

Ground to Top of ROPS

13.8 ft 4202 mm
Ground to Top of Exhaust Stacks

14.8 ft 4521 mm
Ground to Top of Hood

10.9 ft 3334 mm
Rear Axle - Centerline to Bumper

10.5 ft 3187 mm
Front Axle Centerline to Bucket Tip

14 ft 4254 mm
Wheel Base

14.9 ft 4550 mm
Maximum Overall Length

39.3 ft 11991 mm
Ground to Lower Hitch Clearance

1.9 ft 568 mm
Clearance at Maximum Lift

11.9 ft 3641 mm
B-Pin Height - Maximum Lift

18 ft 5491 mm
Maximum Overall Height - Bucket Raised

24.5 ft 7455 mm
Reach - Maximum Lift

6.5 ft 1981 mm

Engine

Net Power - SAE J1349:2011

538 hp 401 kW
Engine Power - ISO 14396:2002

580 hp 432 kW
Gross Power - SAE J1995:2014

588 hp 439 kW
Engine Model

Cat® C18 ™
Peak Power Speed

1500/rpm
Rated Speed

1700/min
Emissions

U.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
Bore

5.7 in 145 mm
Stroke

7.2 in 183 mm
Displacement

1105 in³ 18.1 l
Peak Torque - 1,200 rpm

2230 lb/ft 3023 N·m
Torque Rise

58 % 58 %

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

Rack Back

4.5 s 4.5 s
Raise

8 s 8 s
Dump

2.2 s 2.2 s
Lower Float Down

3.5 s 3.5 s
Total Hydraulic Cycle Time - Empty Bucket

18.2 s 18.2 s

Hydraulic System - Lift/Tilt

Lift/Tilt System - Circuit

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

Variable displacement piston
Maximum Flow at 1,400-1,860 rpm

153 gal/min 580 l/min
Relief Valve Setting - Lift/Tilt

4757 psi 32800 kPa
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
Relief Valve Setting - Main

551 psi 3800 kPa

Hydraulic System - Steering

Steering System - Circuit

Pilot, load sensing
Steering System - Pump

Piston, variable displacement
Maximum Flow

71.3 gal/min 270 l/min
Relief Valve Setting - Steering

4351 psi 30000 kPa
Total Steering Angle

86 °
Steering Cycle Times - High Idle

3.4 s 3.4 s
Steering Cycle Times - Low Idle

5.6 s 5.6 s

Operating Specifications

Operating Weight

112574 lb 51062 kg
Rated Payload - Quarry Face

12.5 t 11.3 t
Rated Payload - Loose Material

16 t 14.5 t
Bucket Capacity Range

4.7-13 m3 (6.2-17 yd3)
Cat Truck Match - Standard

770~772
Cat Truck Match - High Lift

773~775

Operator's Cab

ROPS/FOPS

ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards

Service Refill Capacities

Fuel Tank

188 gal (US) 712 l
Cooling System

31.7 gal (US) 120 l
Coolant (Validated by Test Cell Fill Quantities)

33 gal (US) 125 l
Crankcase

15.9 gal (US) 60 l
Diesel Exhaust Fluid Tank

8.7 gal (US) 33 l
Transmission

31.7 gal (US) 120 l
Transmission - Validated by Test Cell Fill Quantities

29 gal (US) 110 l
Differential - Final Drives - Front

49.1 gal (US) 186 l
Differential - Final Drives - Rear

49.1 gal (US) 186 l
Hydraulic System Factory Fill

125.5 gal (US) 475 l
Hydraulic System - Tank Only

63.4 gal (US) 240 l

Sound Performance - Tier 3 / Stage III - Standard

Operator Sound Pressure Level (ISO 6396:2008)

73 dB(A) 73 dB(A)
Machine Sound Power Level (ISO 6395:2008)

112 dB(A) 112 dB(A)

Sound Performance - Tier 4 Final / Stage V - Standard

Operator Sound Pressure Level (ISO 6396:2008)

73 dB(A) 73 dB(A)
Machine Sound Power Level (ISO 6395:2008)

111 dB(A) 111 dB(A)

Transmission

Transmission Type

Cat planetary powershift
Forward - 1

4 mile/h 6.5 km/h
Forward - 2

7.2 mile/h 11.6 km/h
Forward - 3

12.7 mile/h 20.4 km/h
Forward - 4

21.6 mile/h 34.7 km/h
Reverse - 1

4.7 mile/h 7.5 km/h
Reverse - 2

8.3 mile/h 13.3 km/h
Reverse - 3

14.4 mile/h 23.2 km/h
Direct Drive - Forward 1

Lock-up disabled
Direct Drive - Forward 2

7.8 mile/h 12.5 km/h
Direct Drive - Forward 3

13.9 mile/h 22.3 km/h
Direct Drive - Forward 4

24.4 mile/h 39.3 km/h
Direct Drive - Reverse 1

5 mile/h 8 km/h
Direct Drive - Reverse 2

8.9 mile/h 14.3 km/h
Direct Drive - Reverse 3

15.8 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.

*Not legal for trade.

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.

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.

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.

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.

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.

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

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