988K Millyard Arrangement

Large Wheel Loaders 988K Millyard Arrangement

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Key Specs

Net Power
541 HP
403 kW
Operating Weight
139920 lb
63600 kg
Engine Model
Cat® C18 ™
Cat® C18 ™

Overview

No compromise on power

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. The 988K Millyard Arrangement is designed to meet the demands of millyard applications. The features of the 988K Millyard work together to provide a durable and reliable machine to meet the needs of the modern millyard.

Product Specifications for 988K Millyard Arrangement

Net Power 541 HP 403 kW
Engine Model Cat® C18 ™ Cat® C18 ™
Net Power - SAE J1349 541 HP 403 kW
Bore 5.7 in 145 mm
Stroke 7.2 in 183 mm
Displacement 1105 in³ 18.1 l
Torque Rise 58 % 58 %
Rated Speed 1700/min 1700/min
Peak Power Speed - 1,500 rpm - Gross - ISO 14396 580 HP 432 kW
Peak Power Speed - 1,500 rpm - Net Power - SAE J1349 541 HP 403 kW
Emissions U.S. EPA Tier 4 Final/EU Stage V Technology or Tier 2 Equivalent U.S. EPA Tier 4 Final/EU Stage V Technology or Tier 2 Equivalent
Peak Torque - 1,200 rpm 2104 lb/ft 2852 N·m
Gross - ISO 14396 580 HP 432 kW
Peak Power Speed 1500/min 1500/min
Peak Power Speed - 1,500 rpm - Gross - SAE J1995 588 HP 439 kW
Fork End Area 69 ft² 6.4 m²
Operating Weight 139920 lb 63600 kg
Tipping Load - Straight 78115 lb 35500 kg
Tipping Load - Articulated 37° 68005 lb 30910 kg
Transmission Type Cat-Planetenlastschaltgetriebe Cat-Planetenlastschaltgetriebe
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 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
Maximum Flow 13.7 gal/min 52 l/min
Pilot System Variable displacement piston Variable displacement piston
Maximum Flow at 1,400-1,860 rpm 153 gal/min 580 l/min
Relief Valve Setting - Main 580 psi 4000 kPa
Cylinders, Double Acting - Tilt, Bore and Stroke 292 mm × 671 mm (11.5 in × 26.4 in) 292 mm × 671 mm (11.5 in × 26.4 in)
Cylinders, Double Acting - Lift, Bore and Stroke 235 mm × 976 mm (9.25 in × 38.4 in) 235 mm × 976 mm (9.25 in × 38.4 in)
Lift/Tilt System Variable displacement piston Variable displacement piston
Lift/Tilt System - Circuit EH- Positive Flow Control, Flow Sharing EH- Positive Flow Control, Flow Sharing
Relief Valve Setting - Lift/Tilt 4641 psi 32000 kPa
Fuel Tank 188 gal (US) 712 l
Cooling System 31.7 gal (US) 120 l
Crankcase 15.9 gal (US) 60 l
Transmission 31.7 gal (US) 120 l
Differential - Final Drives - Front 49.1 gal (US) 186 l
Differential - Final Drives - Rear 49.1 gal (US) 186 l
Hydraulic System - Tank Only 63.4 gal (US) 240 l
Hydraulic System Factory Fill 125.5 gal (US) 475 l
Diesel Exhaust Fluid Tank 8.7 gal (US) 33 l
Fork Top Clamp Opening 12.3 ft 3741 mm
Dump Angle at Maximum Lift 39.4 ° 39.4 °
Ground to Top of Hood 10.9 ft 3334 mm
Front Axle Centerline to Fork Tip 15.6 ft 4765 mm
Fork Height at Maximum Lift 15.3 ft 4660 mm
Wheel Base 14.9 ft 4550 mm
Ground to Lower Hitch Clearance 1.9 ft 568 mm
Rear Axle - Centerline to Bumper 10.5 ft 3187 mm
Ground to Center of Front Axle 3.2 ft 978 mm
Maximum Overall Length 41 ft 12502 mm
Ground to Top of ROPS 13.8 ft 4221 mm
Fork Height with Level Arms 8.1 ft 2468 mm
Ground to Bumper Clearance 3.1 ft 933 mm
Hinge Pin Height at Maximum Lift 16.1 ft 4918 mm
Ground to Top of Exhaust Stacks 13.8 ft 4214 mm
Front Fixed Fixed
Rear Trunnion Trunnion
Oscillation Angle 13° 13°
Brakes SAE J1473 OKT90, ISO 3450:1992 SAE J1473 OKT90, ISO 3450:1992
Steering System - Circuit Pilot, load sensing Pilot, load sensing
Steering System - Pump Piston, variable displacement Piston, variable displacement
Relief Valve Setting - Steering 4351 psi 30000 kPa
Steering Cycle Times - High Idle 3.4 s 3.4 s
Steering Cycle Times - Low Idle 5.6 s 5.6 s
Maximum Flow 71.3 gal/min 270 l/min
Total Steering Angle 74 ° 74 °
Operator Sound Level (ISO 6396) 71 dB(A) 71 dB(A)
Machine Sound Level (ISO 6395) 111 dB(A) 111 dB(A)
Machine Sound Level (ISO 6395) 109 dB(A) 109 dB(A)
Operator Sound Level (ISO 6396) 70 dB(A) 70 dB(A)

988K Millyard Arrangement Standard Equipment

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

ELECTRICAL

  • Alarm, back-up
  • Alternator, single 150 amp
  • Batteries, dry
  • Converter, 10/15 amp, 24V to 12V
  • Lighting system (halogen, work lights, access and service platform lighting)
  • Starting and charging system, 24V
  • Starter emergency start receptacle
  • Starter lockout in bumper
  • Transmission lockout in bumper

OPERATOR ENVIRONMENT

  • Graphical Information Display, displays real time operating information, performs calibrations and customizes operator settings
  • Air conditioner
  • Cat Detect Vision, rear vision camera system
  • Cab, sound suppressed and pressurized, integrated rollover protective structure (ROPS/FOPS) radio ready for entertainment, includes antenna, speakers and converter (12-volt 5-amp) and power port
  • Controls, lift and tilt function
  • Heater, defroster
  • Horn, electric
  • Instrumentation, gauges: - Coolant temperature - Engine hour meter - Hydraulic oil temperature - Power train oil temperature
  • Light, cab, dome
  • Lunchbox, beverage holders
  • Mirrors, rearview (externally mounted)
  • Rimpull Control System
  • Seat, Cat Comfort (cloth), air suspension, six-way adjustable
  • Seat belt, retractable, 76 mm (3 in) wide
  • STIC Control System
  • UV glass
  • Transmission gear indicator
  • Vital Information Management System (VIMS) with Graphical Information Display: External Data Port, Customizable Operator Profiles, Cycle Timer, Integrated Payload Control System
  • Wet-Arm wipers/washers (front and rear): - Intermittent front and rear wipers
  • Lights, directional

POWER TRAIN

  • Swing out radiator system with 6 fpi radiator cores
  • Auto-reversing fan with adjustable controls and manual cycle
  • Hinged, perforated side doors
  • Brakes, oil-cooled, multi-disc, service/secondary
  • Case drain screens
  • Crankcase guard
  • Electro hydraulic parking brake
  • Engine, C18 MEUI diesel, turbocharged/aftercooled
  • Ground level engine shutoff
  • Turbine precleaner, engine air intake
  • Radiator, Next Generation Modular (NGMR)
  • Starting aid, ether, automatic
  • Throttle lock, electronic
  • Torque converter, Impeller Clutch (ICTC) with Lock up clutch (LUC), Rimpull Control System
  • Transmission, planetary powershift, 4F/3R electronic control

OTHER

  • Automatic bucket lift kickout/positioner
  • Base machine price includes a rim allowance
  • Hydraulically driven demand fan
  • Couplings, Cat O-ring face seals
  • Doors, service access (locking)
  • Ecology drains for engine, radiator, hydraulic tank
  • Fuel tank, 731 L (188 gal)
  • Hitch, drawbar with pin
  • Hoses, Cat XT™
  • Hydraulic, steering and brake filtration/screening system
  • Cat Clean Emission Module
  • Oil sampling valves
  • Premixed 50% concentration of extended life coolant with freeze protection to -34° C (-29° F)
  • Rear access to cab and service platform
  • Steering, load sensing
  • Toe kicks
  • Vandalism protection caplocks

988K Millyard Arrangement Optional Equipment

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

POWER TRAIN

  • -50° C (-58° F) antifreeze
  • Engine oil change system, high speed, Wiggins
  • Engine block heater 120V or 240V
  • High ambient cooling - software

OPERATOR ENVIRONMENT

  • Cab precleaner
  • AM/FM/CD/MP3 radio
  • Satellite Sirius radio with bluetooth
  • LED warning strobe
  • CB radio ready
  • Window pull down visor

MISCELLANEOUS ATTACHMENTS

  • Front and rear roading fenders
  • Fast fill fuel system (Shaw-Aero)

Compatible Technology and Services

Leverage Caterpillar connected data and security principles to improve efficiencies, increase productivity and make your business more profitable.

  • Cat Command for Loading

    Cat Command for Loading is a remote control option that contributes to jobsite safety by allowing operators to run a wheel loader remotely in hazardous applications.

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Cat Command for Loading is a remote control option that contributes to jobsite safety by allowing operators to run a wheel loader remotely in hazardous applications.

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  • Rear Object Detection for Wheel Loaders

    Rear Object Detection for wheel loaders is a two-part system providing enhanced blind spot awareness. Radar provides visual and audible alerts when objects enter a safety proximity zone, while a camera allows the operator to see what's behind the machine when reversing.

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Rear Object Detection for wheel loaders is a two-part system providing enhanced blind spot awareness. Radar provides visual and audible alerts when objects enter a safety proximity zone, while a camera allows the operator to see what's behind the machine when reversing.

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  • Cat Inspect

    Cat® Inspect allows you to access your equipment data on your mobile device. This easy-to-use app lets you capture inspection data and integrates with your other Cat data systems, so you can keep a close eye on your fleet. More than one million inspections are completed each year, providing convenience and accountability to equipment owners.

  • Cat Product Link

    Cat® Product Link™ wirelessly connects you to your equipment giving you valuable insight into how your machine or fleet is performing. Information such as location, hours, fuel usage, productivity, idle time, and diagnostic codes are made available through online web applications so that you can make timely, fact-based decisions to maximize efficiency, improve productivity, and lower the cost of owning and operating your fleet. Available with satellite or cellular connectivity.

  • Cat Remote Flash

    Remote Flash sends an alert from your Cat dealer, prompting you to update the software on your machine. To minimize downtime, updates can be deployed while on the jobsite without having to wait for a dealer technician to arrive. Remote flash decreases maintenance time and keeps your asset running with maximum efficiency.

  • VisionLink®

    VisionLink® is a cloud-based software application that takes the guesswork out of fleet management with key insights to maximize performance - regardless of fleet size or equipment manufacturer. Receive equipment data seamlessly to your desktop or mobile device, all from a convenient centralized solution to make informed decisions at every turn.

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Previous Next

Cat® Inspect allows you to access your equipment data on your mobile device. This easy-to-use app lets you capture inspection data and integrates with your other Cat data systems, so you can keep a close eye on your fleet. More than one million inspections are completed each year, providing convenience and accountability to equipment owners.

Explore Technology

Cat® Product Link™ wirelessly connects you to your equipment giving you valuable insight into how your machine or fleet is performing. Information such as location, hours, fuel usage, productivity, idle time, and diagnostic codes are made available through online web applications so that you can make timely, fact-based decisions to maximize efficiency, improve productivity, and lower the cost of owning and operating your fleet. Available with satellite or cellular connectivity.

Explore Technology

Remote Flash sends an alert from your Cat dealer, prompting you to update the software on your machine. To minimize downtime, updates can be deployed while on the jobsite without having to wait for a dealer technician to arrive. Remote flash decreases maintenance time and keeps your asset running with maximum efficiency.

Explore Technology

VisionLink® is a cloud-based software application that takes the guesswork out of fleet management with key insights to maximize performance - regardless of fleet size or equipment manufacturer. Receive equipment data seamlessly to your desktop or mobile device, all from a convenient centralized solution to make informed decisions at every turn.

Explore Technology

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