990K Millyard Arrangement Wheel Loader

Overview
Net Power
699 hp
Operating Weight
202,398 lb
Engine Model
Cat® C27 ACERT™

Cat Large Wheel Loaders are designed with durability built in, ensuring maximum availability through multiple life cycles. With optimized performance and simplified serviceability, our machines allow you to move more material efficiently and safely. The 990K Millyard Arrangement is designed to meet the demands of millyard applications. The features of the 990K Millyard work together to provide a durable and reliable machine to meet the needs of the modern millyard.

Engine

Net Power
699 hp
Engine Model
Cat® C27 ACERT™
Net Power – SAE J1349
699 hp
Bore
5 in
Stroke
6 in
Displacement
1,650 in3
Torque Rise
18 %
Rated Speed
1,800 rpm
Emissions
U.S. EPA Tier 4 Final or Tier 2 equivalent
Gross - ISO 14396
752 HP
Peak Torque - 1,200 rpm
2,624 lb/ft
Rated Speed - Gross - ISO 14396
752 HP
Rated Speed - Gross - SAE J1995
766 HP
Rated Speed - Net Power - SAE J1349 - High Ambient
648 HP
Rated Speed - Net Power - SAE J1349 - Standard Ambient
699 HP
Net Power
699 HP
Engine Model
Cat® C27 ACERT™
Bore
5 in
Stroke
6 in
Displacement
1,650 in³
Torque Rise
18 %
Rated Speed
1,800 rpm
Emissions
U.S. EPA Tier 4 Final or Tier 2 equivalent
Net Power - SAE J1349
699 HP

Operating Specifications

Operating Weight
202,398 lb
Tipping Load – Articulated 35°
81,896 lb
Tipping Load - Straight
92,990 lb
Operating Weight
202,398 lb
Tipping Load - Articulated 35°
81,896 lb

Transmission

Transmission Type
Cat planetary power shift
Forward 1
5 mph
Forward 2
8 mph
Forward 3
14 mph
Reverse 1
5 mph
Reverse 2
9 mph
Reverse 3
16 mph
Direct Drive Forward 2
9 mph
Direct Drive Reverse 1
5 mph
Direct Drive Reverse 2
10 mph
Direct Drive - Forward 1
Lock-up disabled
Direct Drive - Forward 3
15 mile/h
Direct Drive - Reverse 3
16 mile/h
Note
Travel speeds based on Michelin 45/65R39 LD D2**L5 tires.
Transmission Type
Cat planetary power shift
Forward - 1
5 mile/h
Forward - 2
8 mile/h
Forward - 3
14 mile/h
Reverse - 1
5 mile/h
Reverse - 2
9 mile/h
Reverse - 3
16 mile/h
Direct Drive - Forward 2
9 mile/h
Direct Drive - Reverse 1
5 mile/h
Direct Drive - Reverse 2
10 mile/h
Note
Travel speeds based on Michelin 45/65R39 LD D2**L5 tires.

Axles

Front
Fixed
Rear
Trunnion
Oscillation Angle
8.5°
Front
Fixed
Rear
Trunnion
Oscillation Angle
8.5°

Hydraulic Cycle Time

Rack Back
5 Seconds
Raise
9 Seconds
Dump
3 Seconds
Lower Float Down
4 Seconds

Hydraulic System – Steering

Steering System – Circuit
Pilot, load sensing
Steering System – Pump
Piston, variable displacement
Total Steering Angle
70°

Service Refill Capacities

Fuel Tank
294 gal
Cooling System
55 gal
Transmission
29 gal
Differentials and Final Drives – Front
72 gal
Differentials and Final Drives – Rear
69 gal
Engine Crankcase
20 gal
Hydraulic System Factory Fill
210 gal (US)
Hydraulic Tank - Implement and Hydraulic Fan
69 gal (US)
Hydraulic Tank - Steering and Braking
35 gal (US)
Fuel Tank
294 gal (US)
Cooling System
55 gal (US)
Transmission
29 gal (US)
Differential - Final Drives - Front
72 gal (US)
Differential - Final Drives - Rear
69 gal (US)
Engine Crankcase
20 gal (US)

Sound Performance – Standard

Machine Sound Level (ISO 6395:2008)
115 dB(A)

Hydraulic System – Lift/Tilt

Cylinders, Double Acting: Lift, Bore and Stroke
254 mm × 1264 mm (10.0 in × 49.8 in)
Cylinders, Double Acting: Tilt, Bore and Stroke
317.5 mm × 819 mm (12.5 in × 32.2 in)
Pilot System
Open loop and pressure reducing
Relief Valve Setting – Lift/Tilt
4,786 psi

Sound Performance – Suppression

Machine Sound Level (ISO 6395:2008)
113 dB(A)

Brakes

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

Hydraulic Cycle Times

Lower
4 s
Raise
9 s
Dump
3 s
Lower Float Down
4 s
Rack Back
5 s

Hydraulic System - Steering

Relief Valve Setting - Steering
4,641 psi
Maximum Flow at 1,400 rpm
95 gal/min
Steering System - Circuit
Pilot, load sensing
Steering System - Pump
Piston, variable displacement
Total Steering Angle
70°

Sound Performance - Standard

Operator Sound Level (ISO 6396:2008)
69 dB(A)
Machine Sound Level (ISO 6395:2008)
115 dB(A)

Hydraulic System - Lift/Tilt

Lift/Tilt System
Variable displacement piston
Maximum Flow at 1,800 rpm (1)
216 gal/min
Maximum Flow at 1,800 rpm (2)
22 gal/min
Relief Valve Setting
507 psi
Cylinders, Double Acting - Lift, Bore and Stroke
254 mm × 1264 mm (10.0 in × 49.8 in)
Cylinders, Double Acting - Tilt, Bore and Stroke
317.5 mm × 819 mm (12.5 in × 32.2 in)
Lift/Tilt System - Circuit
Positive flow control
Pilot System
Open loop and pressure reducing
Relief Valve Setting - Lift/Tilt
4,786 psi

Sound Performance - Suppression

Operator Sound Level (ISO 6396:2008)
69 dB(A)
Machine Sound Level (ISO 6395:2008)
113 dB(A)

Forks

Fork End Area
78 ft²

Dimensions - Millyard Linkage - Approximate

Ground to Top of ROPS
17 ft
Ground to Top of Exhaust Stacks
17 ft
Ground to Top of Hood
13 ft
Ground to Bumper Clearance
3 ft
Rear Axle - Centerline to Bumper
13 ft
Front Axle Centerline to Fork Tip
18 ft
Wheel Base
15 ft
Maximum Overall Length
45 ft
Ground to Lower Hitch Clearance
2 ft
Ground to Center of Front Axle
4 ft
Fork Height with Level Arms
9 ft
Fork Top Clamp Opening
12 ft
Fork Height at Maximum Lift
18 ft
Hinge Pin Height at Maximum Lift
19 ft
Dump Angle at Maximum Lift
29.3 degrees

Efficiency

Structures

Power Train

Hydraulics

Operator Station

Technology Solutions

Serviceability

Customer Support

Safety

Sustainability

Cat Forks

  • Operator Environment
    • Air conditioner and heater with automatic temperature control
    • Cab, sound-suppressed pressurized, protective structure (ROPS/FOPS), radio ready for (entertainment) includes antenna, speakers and converter (12V, 10-15 amp)
    • 12V power port for mobile phone or laptop connection
    • Camera, rear vision
    • Cigar lighter and ashtray
    • Coat hook
    • Electro-hydraulic tilt and lift controls (seat mounted)
    • Flip-up armrest
    • Heater and defroster
    • Horn, electric
    • Implement hydraulic lockout
    • Instrumentation, gauges: – Engine coolant temperature – Fuel level – Ground speed – Gear – Hydraulic oil temperature – Speedometer/tachometer – Torque converter temperature
    • Instrumentation, warning indicators: – Action alert system, three category – Automatic transmission model enable status – Brake malfunction – Bucket float status – Delayed engine shutdown status – Engine idle shutdown status – Engine malfunction – Fuel economy mode enable status – Hydraulic lockout – Lockup clutch enable status – Low fuel level – Parking brake status – Rimpull control enable status – Seatbelt warning – Secondary steering (if equipped) – Throttle lock status – Transmission gear
    • Keypad, control with indicator lights: – Auto trans mode speed range – Auto/manual transmission mode – Fuel economy mode – Implement kickout – Lockup clutch – Reduced rimpull – Throttle lock
    • Light, dome (cab)
    • Lunchbox and beverage holders
    • Mirrors, rearview (externally mounted)
    • Seat, Cat comfort (cloth) air suspension
    • Seat belt, retractable, 76 mm (3 in) wide
    • STIC control system with steering lock
    • Tinted glass
    • Trainer seat with lap belt
    • Vital Information Management System (VIMS) 3G with graphical information display: external data port, customizable operator profiles, cycle timer, and integral Payload Control System (PCS): – Wet-arm wipers/washers (front, rear and corner) intermittent front wiper
  • Power Train
    • Brakes, full hydraulic, enclosed, oil-disc
    • Axle-shaft oil-disc service brake
    • Electro hydraulic parking brake
    • Case drain filters
    • Cat clean emission module (Tier 4 Final only)
    • Demand fan
    • Engine Cat C27 ACERT
    • Fuel priming pump (electric)
    • Ground level engine shutoff, bumper
    • Mufflers (under hood) (Tier 2 only)
    • Precleaner, engine air intake
    • Radiator, Aluminum Modular (AMR)
    • Separated cooling system
    • Starting aid, (ether) manual override
    • Throttle Lock
    • Torque Converter, Impeller Clutch with lock-up clutch feature and rimpull control system
    • Transmission, 534 mm (21 in) planetary power shift (electronic) (3F/3R)
  • Electrical
    • Alarm, back-up
    • Alternator, 150 amp
    • Batteries, maintenance free (2 – 1,400 CCA)
    • Converter, 10/15 amp, 24V to 12V
    • Deutsch component connectors
    • Electrical system, 24V
    • Electronic transmission control
    • Lighting system, halogen (front and rear) lighting, access stairway, engine compartment
    • Starter, electric
    • Starter lockout in bumper
    • Starting receptacle for emergency start
    • Transmission lockout in bumper
  • Other
    • Automatic tilt/lift kickouts electronically adjustable from cab
    • Axle temperature sensor
    • Battery disconnect and jump start receptacle, bumper
    • Coupling, Caterpillar O-ring face seals
    • Economy mode with on demand throttle
    • Emergency platform egress
    • Engine, crankcase, 500 hour interval with CH4
    • Engine idle management features: – Auto idle kickdown – Delayed engine shutdown – Engine idle shutdown
    • Fenders, steel (front)
    • Guards, crankcase and power train
    • Grouped/labeled lube points
    • Hitch, drawbar with pin
    • Hoses, Cat XT
    • Oil sampling valves
    • Positive flow control hydraulic system
    • Product Link
    • Sight Gauges: hydraulic tanks, steering/fan and implement/brake, and transmission
    • Stairway, left and right rear access
    • Steering, load sensing
    • Toe kicks
    • Vandalism protection caplocks
    • Venturi stack
    • Premixed 50% concentration of extended life coolant with freeze protection to –34° C (–29° F)
  • 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 sun shade
  • Miscellaneous Attachments
    • Front and rear roading fenders
    • Fast fill fuel system (Shaw-Aero)
    • Axle oscillation stop
    • Heavy duty cab mounts
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