Caterpillar-988K Steel Mill Arrangement

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Caterpillar 988K Steel Mill Arrangement Large Wheel Loaders

Variants

Specifications of Caterpillar 988K Steel Mill Arrangement Large Wheel Loaders

Engine

  • Bore 145.0 mm
  • Displacement 18.1 L
  • Emissions U.S. EPA Tier 4 Final/EU Stage IV, Tier 2 Equivalent
  • Engine Model Cat® C18 ACERTâ„¢
  • Gross (ISO 14396) 432.0 kW
  • Net Power 403.0 kW
  • Net Power - SAE J1349 403.0 kW
  • Peak Power Speed 1,500 rpm
  • Peak Power Speed @ 1,500 rpm: Gross - ISO 14396 432.0 kW
  • Peak Power Speed @ 1,500 rpm: Gross - SAE J1995 439.0 kW
  • Peak Power Speed @ 1,500 rpm: Net Power - SAE J1349 403.0 kW
  • Peak Torque @ 1,200 rpm 2852.0 N·m
  • Rated Speed 1,700 rpm
  • Stroke 183.0 mm
  • Torque Rise 58.0 %

Transmission

  • Direct Drive - Forward 1 Lock-up disabled
  • Direct Drive - Forward 2 12.5 km/h
  • Direct Drive - Forward 3 22.3 km/h
  • Direct Drive - Forward 4 39.3 km/h
  • Direct Drive - Reverse 1 8.0 km/h
  • Direct Drive - Reverse 2 14.3 km/h
  • Direct Drive - Reverse 3 25.5 km/h
  • Forward 1 6.5 km/h
  • Forward 2 11.6 km/h
  • Forward 3 20.4 km/h
  • Forward 4 34.7 km/h
  • Reverse 1 7.5 km/h
  • Reverse 2 13.3 km/h
  • Reverse 3 23.2 km/h

Service Refill Capacities

  • Cooling System 120.0 L
  • Crankcase 60.0 L
  • Diesel Exhaust Fluid Tank (Tier 4) 33.0 L
  • Differentials and Final Drives - Front 186.0 L
  • Differentials and Final Drives - Rear 186.0 L
  • Fuel Tank 712.0 L
  • Hydraulic System (tank only) 240.0 L
  • Hydraulic System Factory Fill 475.0 L
  • Transmission 120.0 L

Operating Specifications

  • Bucket Capacity Range 6.4-7.6 m3 (8.3-10 yd3)
  • Cat Truck Match - High Lift 773-775
  • Cat Truck Match - Standard 770-772
  • Operating Weight 51062.0 kg
  • Rated Payload 11.3 tonnes
  • Rated Payload - High Lift 11.3 tonnes
  • Rated Payload - Standard 11.3 tonnes

Axles

  • Front Fixed
  • Oscillation Angle 13°
  • Rear Trunnion

Brakes

  • Brakes SAE J1473 OCT90, ISO 3450:1992

Buckets

  • Bucket Capacities 6.4-7.6 m3 (8.3-10 yd3)

HYDRAULIC SYSTEM - LIFT/TILT

  • Cylinders, Double Acting: Lift, Bore and Stroke 220 mm × 911 mm (8.7 in × 35.9 in)
  • Cylinders, Double Acting: Tilt, Bore and Stroke 220 mm × 1621 mm (8.7 in × 63.8 in)
  • Lift/Tilt System Variable displacement piston
  • Lift/Tilt System - Circuit EH- Positive Flow Control, Flow Sharing
  • Maximum Flow 52.0 L/min
  • Maximum Flow at 1,400-1,860 rpm 580.0 L/min
  • Pilot System Variable displacement piston
  • Relief Valve Setting 4000.0 kPa
  • Relief Valve Setting - Lift/Tilt 32000.0 kPa

HYDRAULIC SYSTEM - STEERING

  • Maximum Flow 270.0 L/min
  • Relief Valve Setting - Steering 30000.0 kPa
  • Steering Cycle Time (high idle) 3.4 Seconds
  • Steering Cycle Time (low idle) 5.6 Seconds
  • Steering System - Circuit Pilot, load sensing
  • Steering System - Pump Piston, variable displacement
  • Total Steering Angle 86.0 Degrees

SOUND PERFORMANCE - STANDARD

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

SOUND PERFORMANCE - SUPPRESSION

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

Hydraulic Cycle Time (1,400-1,860 rpm)

  • Dump 2.2 Seconds
  • Lower Float Down 3.5 Seconds
  • Rackback 4.5 Seconds
  • Raise 8.0 Seconds
  • Total Hydraulic Cycle Time (empty bucket) 18.2 Seconds

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