988K

988K

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 at a lower cost per ton. 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.

Description

Net Power 403 kW
Engine Model Cat® C18 ACERT™
Bore 145 mm
Stroke 183 mm
Displacement 18.1 l
Torque Rise 58 %
Rated Speed 1,700 rpm
Emissions U.S. EPA Tier 4 Final/EU Stage IV OR Tier 3/Stage IIIA Equivalent OR Tier 2/Stage II Equivalent
Gross – ISO 14396 432 kW
Net Power – SAE J1349 403 kW
Peak Power Speed 1,500 rpm
Peak Power Speed – 1,500 rpm – Gross – ISO 14396 432 kW
Peak Power Speed – 1,500 rpm – Gross – SAE J1995 439 kW
Peak Power Speed – 1,500 rpm – Net Power – SAE J1349 403 kW
Peak Torque – 1,200 rpm 2852 N·m
Operating Weight 51062 kg
Bucket Capacity Range 4.7-13 m3 (6.2-17 yd3)
Cat Truck Match – High Lift 773-775
Cat Truck Match – Standard 770-772
Rated Payload – Loose Material 14.5 t
Rated Payload – Quarry Face 11.3 t
Transmission Type Cat planetary power shift
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
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 km/h
Direct Drive – Reverse 2 14.3 km/h
Direct Drive – Reverse 3 25.5 km/h
Cylinders, Double Acting – Lift, Bore and Stroke 210 mm × 1050 mm (8.7 in × 41.3 in)
Cylinders, Double Acting – Tilt, Bore and Stroke 269 mm × 685 mm (8.7 in × 27 in)
Lift/Tilt System Variable displacement piston
Lift/Tilt System – Circuit EH- Positive Flow Control, Flow Sharing
Maximum Flow 52 l/min
Maximum Flow at 1,400-1,860 rpm 580 l/min
Pilot System Variable displacement piston
Relief Valve Setting 3800 kPa
Relief Valve Setting – Lift/Tilt 32800 kPa
Fuel Tank 712 l
Cooling System 120 l
Crankcase 60 l
Transmission 120 l
Hydraulic System – Tank Only 240 l
Diesel Exhaust Fluid Tank (For Tier 4 Final/Stage IV Only) 33 l
Differential – Final Drives – Front 186 l
Differential – Final Drives – Rear 186 l
Hydraulic System Factory Fill 475 l
Bucket Capacities 4.7-13 m3 (6.2-17 yd3)
Front Fixed
Rear Trunnion
Oscillation Angle 13°
Brakes SAE J1473 OCT90, ISO 3450:1992
Maximum Flow 270 l/min
Relief Valve Setting – Steering 30000 kPa
Steering Cycle Times – High Idle 3.4 s
Steering Cycle Times – Low Idle 5.6 s
Steering System – Circuit Pilot, load sensing
Steering System – Pump Piston, variable displacement
Total Steering Angle 86°
Dump 2.2 s
Lower Float Down 3.5 s
Rack Back 4.5 s
Raise 8 s
Total Hydraulic Cycle Time – Empty Bucket 18.2 s
Machine Sound Level (ISO 6395) 111 dB(A)
Operator Sound Level (ISO 6396) 72 dB(A)
Machine Sound Level (ISO 6395) 109 dB(A)
Operator Sound Level (ISO 6396) 72 dB(A)
Coolant (Validated by Test Cell Fill Quantities) 125 l
Transmission – Validated by Test Cell Fill Quantities 110 l
Machine Sound Level (ISO 6395) 112 dB(A)
Operator Sound Level ( ISO 6396) 73 dB(A)
Machine Sound Level (ISO 6395) 110 dB(A)
Operator Sound Level (ISO 6396) 72 dB(A)

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