CAT 990K Wheel Loader

Engine Details

Net Power 699 hp (521.3 kw)
Rated Speed 1800 rpm
Displacement 1649.5 cu in (27.1 L)
Torque Rise 18 %
Bore 5.4 in (137.2 mm)
Stroke 6 in (152.4 mm)
Emissions U.S. EPA Tier 4 Final OR Tier 2 Equivalent
Net Power – Sae J1349 699 hp (521.3 kw)
Engine Model Cat C27 ACERT
Peak Torque – 1,200 Rpm 2624 lb ft (3557.7 Nm)
Gross – Iso 14396 752 hp (560.8 kw)
Rated Speed – Gross – Iso 14396 752 hp (560.8 kw)
Rated Speed – Gross – Sae J1995 766 hp (571.3 kw)
Rated Speed – Net Power – Sae J1349 – Standard Ambient 699 hp (521.3 kw)
Rated Speed – Net Power – Sae J1349 – High Ambient 648 hp (483.3 kw)

Operational Specs

Operating Weight 178517 lb (80974 kg)

Transmission

Transmission Type Cat planetary power shift
Forward – 1 4.5 mph (7.3 km/h)
Forward – 2 8.3 mph (13.4 km/h)
Forward – 3 14.2 mph (22.9 km/h)
Reverse – 1 4.9 mph (7.9 km/h)
Reverse – 2 9.1 mph (14.7 km/h)
Direct Drive – Forward 3 15.2 mph (24.5 km/h)
Direct Drive – Reverse 3 16.4 mph (26.4 km/h)
Direct Drive – Forward 2 8.5 mph (13.7 km/h)
Direct Drive – Reverse 2 9.6 mph (15.5 km/h)
Direct Drive – Forward 1 Lock-up disabled
Direct Drive – Reverse 1 5.4 mph (8.7 km/h)
Reverse – 3 15.5 mph (25 km/h)

Buckets

Bucket Capacities 7.4-14.9 m (9.7-19.5 yd)

Axles

Front Fixed
Rear Trunnion
Oscillation Angle 8.5 degrees

Brakes

Brakes SAE J1473 OCT90, ISO 3450:1992

Operating Specifications

Bucket Capacity Range 8.6 m-10.0 m (11.25 yd-13.0 yd)
Cat Truck Match – Standard 773-775
Cat Truck Match – High Lift 775-777
Rated Payload – Standard 35000 lb (15875.8 kg)
Rated Payload – High Lift 35000 lb (15875.8 kg)
Rated Payload – Standard (Loose Material) 44000 lb (19958.1 kg)
Rated Payload – High Lift (Loose Material) 44000 lb (19958.1 kg)
Rated Payload – Standard (Face Material) 35000 lb (15875.8 kg)
Rated Payload – High Lift (Face Material) 35000 lb (15875.8 kg)

Service Refill Capacities

Cooling System 54.9 gal (207.9 L)
Fuel Tank Capacity 294.3 gal (1114.1 L)
Engine Crankcase 20 gal (75.8 L)
Transmission 29.1 gal (110.2 L)
Differential – Final Drives – Front 71.6 gal (271.1 L)
Differential – Final Drives – Rear 68.9 gal (260.9 L)
Hydraulic System Factory Fill 210 gal (795 L)
Hydraulic Tank – Implement And Hydraulic Fan 68.9 gal (260.9 L)
Hydraulic Tank – Steering And Braking 34.9 gal (132.2 L)

Hydraulic Cycle Times

Raise 8.2 s
Dump 2.9 s
Lower Float Down 3.6 s
Rack Back 4.3 s
Lower 3.7 s
Total Hydraulic Cycle Time – Empty Bucket 13.8 s

Hydraulic System – Lift/Tilt

Lift/Tilt System – Circuit Positive flow control
Relief Valve Setting – Lift/Tilt 4786 psi
Cylinders, Double Acting – Lift, Bore And Stroke 235 mm 1287 mm (9.3 in 50.7 in)
Cylinders, Double Acting – Tilt, Bore And Stroke 292.1 mm 820 mm (11.5 in 32.3 in)
Pilot System Open loop and pressure reducing
Lift/Tilt System Variable displacement piston
Relief Valve Setting 507 psi
Maximum Flow At 1,800 Rpm (1) 216 gal/min
Maximum Flow At 1,800 Rpm (2) 22.2 gal/min

Hydraulic System – Steering

Steering System – Circuit Pilot, load sensing
Steering System – Pump Piston, variable displacement
Relief Valve Setting – Steering 4641 psi
Maximum Flow At 1,400 Rpm 94.5 gal/min

Sound Performance – Standard

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

Sound Performance – Suppression

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