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990K Millyard Arrangement Wheel Loader

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.

Operating Weight 91807 kg
Tipping Load - Articulated 35° 37148 kg
Tipping Load - Straight 42180 kg

Net Power 521 kW
Engine Model Cat® C27 ™
Rated Speed 1,800/min
Torque Rise 18 %
Bore 137.2 mm
Stroke 152.4 mm
Displacement 27.03 l
Emissions U.S. EPA Tier 4 Final or Tier 2 equivalent
Gross - ISO 14396 561 kW
Net Power - SAE J1349 521 kW
Peak Torque - 1,200 rpm 3557 N·m
Rated Speed - Gross - ISO 14396 561 kW
Rated Speed - Gross - SAE J1995 571 kW
Rated Speed - Net Power - SAE J1349 - High Ambient 483 kW
Rated Speed - Net Power - SAE J1349 - Standard Ambient 521 kW

Forward - 1 7.3 km/h
Forward - 2 13.3 km/h
Forward - 3 22.9 km/h
Reverse - 1 7.9 km/h
Reverse - 2 14.7 km/h
Reverse - 3 24.9 km/h
Direct Drive - Forward 1 Lock-up disabled
Direct Drive - Forward 2 13.7 km/h
Direct Drive - Forward 3 24.5 km/h
Direct Drive - Reverse 1 8.7 km/h
Direct Drive - Reverse 2 15.4 km/h
Direct Drive - Reverse 3 26.4 km/h
Note Travel speeds based on Michelin 45/65R39 LD D2**L5 tires.
Transmission Type Cat-Planetenlastschaltgetriebe

Front Fixed
Oscillation Angle 8.5°
Rear Trunnion

Lift/Tilt System - Circuit Positive flow control
Lift/Tilt System Variable displacement piston
Relief Valve Setting - Lift/Tilt 33000 kPa
Pilot System Open loop and pressure reducing
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)
Maximum Flow at 1,800 rpm (1) 817 l/min
Maximum Flow at 1,800 rpm (2) 84 l/min
Relief Valve Setting - Main 3500 kPa

Relief Valve Setting - Steering 32000 kPa
Total Steering Angle 70°
Maximum Flow at 1,400 rpm 358 l/min
Steering System - Circuit Pilot, load sensing
Steering System - Pump Piston, variable displacement

Fuel Tank 1114 l
Cooling System 208 l
Transmission 110 l
Differential - Final Drives - Front 271 l
Differential - Final Drives - Rear 261 l
Engine Crankcase 75.7 l
Hydraulic System Factory Fill 795 l
Hydraulic Tank - Implement and Hydraulic Fan 261 l
Hydraulic Tank - Steering and Braking 132 l

Brakes SAE J1473 OKT90, ISO 3450:1992

Dump Angle at Maximum Lift 29.3 degrees
Fork Height at Maximum Lift 5591 mm
Fork Height with Level Arms 2708 mm
Fork Top Clamp Opening 3745 mm
Front Axle Centerline to Fork Tip 5362 mm
Ground to Bumper Clearance 959 mm
Ground to Center of Front Axle 1186 mm
Ground to Lower Hitch Clearance 596 mm
Ground to Top of Exhaust Stacks 5049 mm
Ground to Top of Hood 3862 mm
Ground to Top of ROPS 5240 mm
Hinge Pin Height at Maximum Lift 5903 mm
Maximum Overall Length 13840 mm
Rear Axle - Centerline to Bumper 3795 mm
Wheel Base 4600 mm

Fork End Area 7.2 m²

Dump 2.9 s
Lower 3.7 s
Lower Float Down 3.6 s
Rack Back 4.8 s
Raise 9.4 s

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

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

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