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988K Millyard Arrangement

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.

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SPECIFICATION SUMMARY
  • Net Power 541.0 hp
  • Operating Weight 139920.0 lb
  • Engine Model Cat® C18 ACERT™
  • Net Power - SAE J1349 541.0 hp

PRICE (USD)
Call 800-637-5000 for rate information

Engine

  • Net Power
    541.0 hp
  • Engine Model
    Cat® C18 ACERT™
  • Net Power - SAE J1349
    541.0 hp
  • Bore
    5.7 in
  • Stroke
    7.2 in
  • Displacement
    1105.0 in3
  • Torque Rise
    58.0 %
  • Rated Speed
    1,700 rpm
  • Emissions
    U.S. EPA Tier 4 Final/EU Stage IV Technology or Tier 2 Equivalent
  • Gross - ISO 14396
    580 HP
  • Peak Power Speed
    1500/min
  • Peak Power Speed - 1,500 rpm - Gross - ISO 14396
    580 HP
  • Peak Power Speed - 1,500 rpm - Gross - SAE J1995
    588 HP
  • Peak Power Speed - 1,500 rpm - Net Power - SAE J1349
    541 HP
  • Peak Torque - 1,200 rpm
    2104 lb/ft
  • Net Power
    541 HP
  • Engine Model
    Cat® C18 ™
  • Net Power - SAE J1349
    541 HP
  • Bore
    5.7 in
  • Stroke
    7.2 in
  • Displacement
    1105 in³
  • Torque Rise
    58 %
  • Rated Speed
    1700/min
  • Emissions
    U.S. EPA Tier 4 Final/EU Stage IV Technology or Tier 2 Equivalent

Operating Specifications

  • Operating Weight
    139920.0 lb
  • Tipping Load - Articulated 37°
    68005.0 lb
  • Tipping Load - Straight
    78115.0 lb
  • Operating Weight
    139920 lb
  • Tipping Load - Articulated 37°
    68005 lb
  • Tipping Load - Straight
    78115 lb

Transmission

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

Axles

  • Front
    Fixed
  • Rear
    Trunnion
  • Oscillation Angle
    13°
  • Front
    Fixed
  • Rear
    Trunnion
  • Oscillation Angle
    13°

Hydraulic System - Steering

  • Steering System - Circuit
    Pilot, load sensing
  • Steering System - Pump
    Piston, variable displacement
  • Maximum Flow
    71.3 gal/min
  • Steering Cycle Time (high idle)
    3.4 Seconds
  • Steering Cycle Time (low idle)
    5.6 Seconds
  • Total Steering Angle
    74.0 Degrees
  • Relief Valve Setting - Steering
    4351 psi
  • Steering System - Circuit
    Pilot, load sensing
  • Steering System - Pump
    Piston, variable displacement
  • Maximum Flow
    71.3 gal/min
  • Steering Cycle Times - High Idle
    3.4 s
  • Steering Cycle Times - Low Idle
    5.6 s
  • Total Steering Angle
    74 °

Service Refill Capacities

  • Fuel Tank
    188.0 gal
  • Cooling System
    31.7 gal
  • Crankcase
    15.9 gal
  • Transmission
    31.7 gal
  • Differentials and Final Drives - Front
    49.1 gal
  • Differentials and Final Drives - Rear
    49.1 gal
  • Hydraulic System (tank only)
    63.4 gal
  • Diesel Exhaust Fluid Tank
    8.7 gal
  • Hydraulic System Factory Fill
    125.5 gal (US)
  • Fuel Tank
    188 gal (US)
  • Cooling System
    31.7 gal (US)
  • Crankcase
    15.9 gal (US)
  • Transmission
    31.7 gal (US)
  • Differential - Final Drives - Front
    49.1 gal (US)
  • Differential - Final Drives - Rear
    49.1 gal (US)
  • Hydraulic System - Tank Only
    63.4 gal (US)
  • Diesel Exhaust Fluid Tank
    8.7 gal (US)

Forks

  • Fork End Area
    69.0 ft2
  • Fork End Area
    69 ft²

Sound Performance - Standard

  • Machine Sound Level (ISO 6395)
    111.0 dB(A)
  • Operator Sound Level (ISO 6396)
    71.0 dB(A)
  • Machine Sound Level (ISO 6395)
    111 dB(A)
  • Operator Sound Level (ISO 6396)
    71 dB(A)

Hydraulic System - Lift/Tilt

  • Cylinders, Double Acting: Lift, Bore and Stroke
    235 mm × 976 mm (9.25 in × 38.4 in)
  • Cylinders, Double Acting: Tilt, Bore and Stroke
    292 mm × 671 mm (11.5 in × 26.4 in)
  • Maximum Flow at 1,400-1,860 rpm
    153.0 gal/min
  • Pilot System
    Variable displacement piston
  • Relief Valve Setting - Lift/Tilt
    4641.0 psi
  • Lift/Tilt System
    Variable displacement piston
  • Maximum Flow
    13.7 gal/min
  • Relief Valve Setting
    580 psi
  • Cylinders, Double Acting - Lift, Bore and Stroke
    235 mm × 976 mm (9.25 in × 38.4 in)
  • Cylinders, Double Acting - Tilt, Bore and Stroke
    292 mm × 671 mm (11.5 in × 26.4 in)
  • Maximum Flow at 1,400-1,860 rpm
    153 gal/min
  • Pilot System
    Variable displacement piston
  • Lift/Tilt System - Circuit
    EH- Positive Flow Control, Flow Sharing
  • Relief Valve Setting - Lift/Tilt
    4641 psi

Sound Performance - Suppression

  • Machine Sound Level (ISO 6395)
    109.0 dB(A)
  • Operator Sound Level (ISO 6396)
    70.0 dB(A)
  • Machine Sound Level (ISO 6395)
    109 dB(A)
  • Operator Sound Level (ISO 6396)
    70 dB(A)

Brakes

  • Brakes
    SAE J1473 OCT90, ISO 3450:1992
  • Brakes
    SAE J1473 OKT90, ISO 3450:1992

Dimensions - Millyard Linkage

  • Dump Angle at Maximum Lift
    39.4 °
  • Fork Height at Maximum Lift
    15.3 ft
  • Fork Height with Level Arms
    8.1 ft
  • Fork Top Clamp Opening
    12.3 ft
  • Front Axle Centerline to Fork Tip
    15.6 ft
  • Ground to Bumper Clearance
    3.1 ft
  • Ground to Center of Front Axle
    3.2 ft
  • Ground to Lower Hitch Clearance
    1.9 ft
  • Ground to Top of Exhaust Stacks
    13.8 ft
  • Ground to Top of Hood
    10.9 ft
  • Ground to Top of ROPS
    13.8 ft
  • Hinge Pin Height at Maximum Lift
    16.1 ft
  • Maximum Overall Length
    41 ft
  • Rear Axle - Centerline to Bumper
    10.5 ft
  • Wheel Base
    14.9 ft

POWERFUL EFFICIENCY

LONG TERM VALUE AND DURABILITY

PROVEN RELIABILITY

PERFORMANCE AND PRODUCTIVITY

OPERATOR COMFORT AND CONTROL

PRODUCTIVITY WITH TECHNOLOGY

SAVE ON SERVICE AND MAINTENANCE

TOP-TIER SERVICE AND SUPPORT

SAFETY FIRST

REDUCE ENVIRONMENT IMPACT

OPTIONS TO MEET YOUR NEEDS

Standard Equipment:

  • 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

Optional Equipment:

  • 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)