SPECS SUMMARY

Net Power541 mm H2O (403 kg/mm)
Operating Weight112574 lb (51062 null)
Bucket Capacities5.4-6.3 m3 (7.0-8.3 yd3)
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.


Specifications

-Net Power541 mm H2O (403 kg/mm)
-Operating Weight112574 lb (51062 null)
-Bucket Capacities5.4-6.3 m3 (7.0-8.3 yd3)
-Engine ModelCat® C18 ACERT™
-Rated Payload12.5 t (11.3 t)
-Net Power - SAE J1349541 mm H2O (403 kg/mm)
-Bore5.7 in (145 mm)
-Stroke7.2 in (183 mm)
-Displacement1105 in³ (18.1 l)
-Torque Rise58 % (58 %)
-Rated Speed1,700 rpm
-Rated Payload - Standard12.5 t (11.3 t)
-Bucket Capacity Range6.4-7.6 m3 (8.3-10 yd3)
-Cat Truck Match - Standard770-772
-Cat Truck Match - High Lift773-775
-Transmission TypeCat planetary power shift
-Forward - 14 mile/h (6.5 km/h)
-Forward - 27.2 mile/h (11.6 km/h)
-Forward - 312.7 mile/h (20.4 km/h)
-Forward - 421.6 mile/h (34.7 km/h)
-Reverse - 14.7 mile/h (7.5 km/h)
-Reverse - 28.3 mile/h (13.3 km/h)
-Reverse - 314.4 mile/h (23.2 km/h)
-Direct Drive - Forward 1Lock-up disabled
-Direct Drive - Forward 27.8 mile/h (12.5 km/h)
-Direct Drive - Forward 313.9 mile/h (22.3 km/h)
-Direct Drive - Forward 424.4 mile/h (39.3 km/h)
-Direct Drive - Reverse 15 mile/h (8 km/h)
-Direct Drive - Reverse 28.9 mile/h (14.3 km/h)
-Direct Drive - Reverse 315.8 mile/h (25.5 km/h)
-FrontFixed
-RearTrunnion
-Oscillation Angle±6°
-Steering System - CircuitPilot, load sensing
-Steering System - PumpPiston, variable displacement
-Relief Valve Setting - Steering4351 psi (30000 kPa)
-Fuel Tank181 gal (US) (686 l)
-Cooling System31.7 gal (US) (120 l)
-Crankcase15.9 gal (US) (60 l)
-Transmission31.7 gal (US) (120 l)
-Differential - Final Drives - Front49.1 gal (US) (186 l)
-Differential - Final Drives - Rear49.1 gal (US) (186 l)
-Hydraulic System - Tank Only63.4 gal (US) (240 l)
-Operator Sound Level - ISO 639670 dB(A) (70 dB(A))
-Dump2.2 s (2.2 s)
-Machine Sound Level (ISO 6395)111 dB(A) (111 dB(A))
-Total Hydraulic Cycle Time - Empty Bucket18.2 s (18.2 s)
-Raise8 s (8 s)
-Rack Back4.5 s (4.5 s)
-Operator Sound Level - ISO 639671 dB(A) (71 dB(A))
-Machine Sound Level (ISO 6395)109 dB(A) (109 dB(A))
-Steering Cycle Times - High Idle3.4 s (3.4 s)
-Steering Cycle Times - Low Idle5.6 s (5.6 s)
-Total Steering Angle80 ° (80 °)
-Lower Float Down3.5 s (3.5 s)
-Maximum Flow71.3 gal/min (270 l/min)
-Cylinders, Double Acting - Lift, Bore and Stroke210 mm × 1050 mm (8.3 in × 41.3 in)
-Peak Power Speed - 1,500 rpm - Net Power - SAE J1349541 mm H2O (403 kg/mm)
-Peak Torque - 1,200 rpm2104 lb/ft (2852 N·m)
-Rated Payload - High Lift12.5 t (11.3 t)
-Peak Power Speed - 1,500 rpm - Gross - SAE J1995588 mm H2O (439 kg/mm)
-Peak Power Speed - 1,500 rpm - Gross - ISO 14396580 mm H2O (432 kg/mm)
-EmissionsU.S. EPA Tier 4 Final/EU Stage IV, Tier 2 Equivalent
-Gross - ISO 14396580 mm H2O (432 kg/mm)
-Peak Power Speed1,500 rpm
-Cylinders, Double Acting - Tilt, Bore and Stroke267 mm × 685 mm (10.5 in × 27.0 in)
-Lift/Tilt SystemVariable displacement piston
-Hydraulic System Factory Fill125.5 gal (US) (475 l)
-Diesel Exhaust Fluid Tank (Tier 4)8.7 gal (US) (33 l)
-Pilot SystemVariable displacement piston
-Relief Valve Setting551 psi (3800 kPa)
-Maximum Flow at 1,400-1,860 rpm153 gal/min (580 l/min)
-Maximum Flow13.7 gal/min (52 l/min)
-BrakesSAE J1473 OCT90, ISO 3450:1992
-Lift/Tilt System - CircuitEH- Positive Flow Control, Flow Sharing
-Relief Valve Setting - Lift/Tilt4757 psi (32800 kPa)

Benefits and Features

Standard Equipment

  • ELECTRICAL
  • OPERATOR ENVIRONMENT
  • POWER TRAIN
  • OTHER

Optional Equipment

  • POWER TRAIN
  • OPERATOR ENVIRONMENT
  • MISCELLANEOUS ATTACHMENTS

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