988

988 Wheel Loader

The Cat® 988 Wheel Loader helps you move more material in less time, at a low cost per ton, for a fast return on your investment. This machine offers significant fuel savings with durability to achieve multiple lifecycles.

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PROVEN RELIABILITY

LONG TERM VALUE AND DURABILITY

PERFORMANCE AND PRODUCTIVITY

PERFORMANCE WITH LESS FUEL

PRODUCTIVITY WITH TECHNOLOGY

SAFETY FIRST

SAVE ON SERVICE AND MAINTENANCE

OPERATOR COMFORT AND CONTROL

PURPOSE-BUILT SPECIALTY MODELS - BLOCK HANDLER

PURPOSE-BUILT SPECIALTY MODELS - MILLYARD

PURPOSE-BUILT SPECIALTY MODELS - STEEL MILL

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Documents & Brochures

Standard Equipment

NOTE
  • Standard and optional equipment may vary. Consult your Cat dealer for details.
ELECTRICAL
  • Alarm, back-up
  • Alternator, single 150 amp
  • Batteries, dry
  • Converter, 10/15 amp, 24V to 12V
  • Lighting system (halogen, work lights, access and service platform lighting)
  • Starting and charging system, 24V
  • Jump start receptacle
  • Starter lockout in bumper
  • Transmission lockout in bumper
OPERATOR ENVIRONMENT
  • Graphical Information Display, displays real time operating information, performs calibrations and customizes operator settings
  • Air conditioner
  • Cat Vision, rear vision camera system
  • Cab, sound suppressed and pressurized, integrated rollover protective structure (ROPS/FOPS) radio ready for entertainment, includes antenna, speakers and converter (12-volt 5-amp) and power port
  • Controls, lift and tilt function
  • Heater, defroster
  • Horn, electric
  • Instrumentation, gauges: – Coolant temperature – Engine hour meter – Hydraulic oil temperature – Power train oil temperature
  • Light, cab, dome
  • Lunchbox, beverage holders
  • Mirrors, rearview (externally mounted)
  • Rimpull Control System
  • Seat, deluxe
  • Seat belt minder
  • Seat belt, retractable, 76 mm (3 in) wide
  • STIC Control System
  • UV glass
  • Transmission gear indicator
  • Vital Information Management System (VIMS) with Graphical Information Display: External Data Port, Customizable Operator Profiles, Cycle Timer, Integrated Payload Control System
  • Wet-Arm wipers/washers (front and rear): – Intermittent front and rear wipers
  • Lights, directional
POWER TRAIN
  • Brakes, oil-cooled, multi-disc, service/secondary
  • Case drain screens
  • Crankcase guard
  • Electro hydraulic parking brake
  • Engine, C18 MEUI diesel, turbocharged/aftercooled
  • Ground level engine shutoff
  • Turbine precleaner, engine air intake
  • Radiator, Aluminum Modular Radiator (AMR)
  • Starting aid, ether, automatic
  • Throttle lock, electronic
  • Torque converter, Impeller Clutch (ICTC) with Lock up clutch (LUC), Rimpull Control System
  • Transmission, planetary powershift, 4F/3R electronic control
  • Manual switch and automatic fuel priming
  • Cat Production Measurement ready
OTHER
  • Automatic bucket lift kickout/positioner
  • Base machine price includes a rim allowance
  • Hydraulically driven demand fan
  • Couplings, Cat O-ring face seals
  • Doors, service access (locking)
  • Ecology drains for engine, radiator, hydraulic tank
  • Fuel tank, 712 L (188 gal)
  • Hitch, drawbar with pin
  • Hoses, Cat XT™
  • Hydraulic, steering and brake filtration/screening system
  • Cat Clean Emission Module
  • Oil sampling valves
  • Premixed 50% concentration of extended life coolant with freeze protection to –34° C (–29° F)
  • Rear access to cab and service platform
  • Steering, load sensing
  • Toe kicks
  • Vandalism protection caplocks

Additional information

Engine - Net Power - SAE J1349:2011

401 kW ( 538 HP )
Engine Power - ISO 14396:2002

432 kW ( 580 HP )
Engine - Gross Power - SAE J1995:2014

439 kW ( 588 HP )
Engine Model

Cat® C18 ™
Engine - Peak Power Speed

1500/rpm
Engine - Rated Speed

1700/min
Engine - Emissions

U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards, Brazil MAR-1 and China Nonroad Stage IV emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA, and U.S. EPA Tier 2 and EU Stage II
Engine - Bore

145.0 mm ( 5.7 in )
Engine - Stroke

183.0 mm ( 7.2 in )
Engine - Displacement

18.1 l ( 1105.0 in³ )
Engine - Peak Torque - 1,200 rpm

3023 N·m ( 2230 lb/ft )
Engine - Torque Rise

58.0 % ( 58.0 % )
Operating Specifications - Operating Weight

51062.0 kg ( 112574 lb )
Operating Specifications - Rated Payload - Quarry Face

11.3 t ( 12.5 t )
Operating Specifications - Rated Payload - Loose Material

14.5 t ( 16 t )
Operating Specifications - Bucket Capacity Range

4.7-13 m3 (6.2-17 yd3)
Operating Specifications - Cat Truck Match - Standard

770～772
Operating Specifications - Cat Truck Match - High Lift

773～775
Transmission Type

Cat planetary powershift
Transmission - Forward - 1

6.5 km/h ( 4.0 mile/h )
Transmission - Forward - 2

11.6 km/h ( 7.2 mile/h )
Transmission - Forward - 3

20.4 km/h ( 12.7 mile/h )
Transmission - Forward - 4

34.7 km/h ( 21.6 mile/h )
Transmission - Reverse - 1

7.5 km/h ( 4.7 mile/h )
Transmission - Reverse - 2

13.3 km/h ( 8.3 mile/h )
Transmission - Reverse - 3

23.2 km/h ( 14.4 mile/h )
Transmission - Direct Drive - Forward 1

Lock-up disabled
Transmission - Direct Drive - Forward 2

12.5 km/h ( 7.8 mile/h )
Transmission - Direct Drive - Forward 3

22.3 km/h ( 13.9 mile/h )
Transmission - Direct Drive - Forward 4

39.3 km/h ( 24.4 mile/h )
Transmission - Direct Drive - Reverse 1

8.0 km/h ( 5.0 mile/h )
Transmission - Direct Drive - Reverse 2

14.3 km/h ( 8.9 mile/h )
Transmission - Direct Drive - Reverse 3

25.5 km/h ( 15.8 mile/h )
Hydraulic System - Lift/Tilt - Lift/Tilt System - Circuit

EH- Positive Flow Control, Flow Sharing
Hydraulic System - Lift/Tilt - Lift/Tilt System

Variable displacement piston
Hydraulic System - Lift/Tilt - Maximum Flow at 1,400-1,860 rpm

580.0 l/min ( 153.0 gal/min )
Hydraulic System - Lift/Tilt - Relief Valve Setting - Lift/Tilt

32800 kPa ( 4757 psi )
Hydraulic System - Lift/Tilt - Cylinders, Double Acting - Lift, Bore and Stroke

210 mm × 1050 mm (8.7 in × 41.3 in)
Hydraulic System - Lift/Tilt - Cylinders, Double Acting - Tilt, Bore and Stroke

269 mm × 685 mm (8.7 in × 27 in)
Hydraulic System - Lift/Tilt - Pilot System

Variable displacement piston
Hydraulic System - Lift/Tilt - Relief Valve Setting - Main

3800 kPa ( 551 psi )
Hydraulic Cycle Time (1,400-1,860 rpm) - Rack Back

4.5 s ( 4.5 s )
Hydraulic Cycle Time (1,400-1,860 rpm) - Raise

8.0 s ( 8.0 s )
Hydraulic Cycle Time (1,400-1,860 rpm) - Dump

2.2 s ( 2.2 s )
Hydraulic Cycle Time (1,400-1,860 rpm) - Lower Float Down

3.5 s ( 3.5 s )
Hydraulic Cycle Time (1,400-1,860 rpm) - Total Hydraulic Cycle Time - Empty Bucket

18.2 s ( 18.2 s )
Hydraulic System - Steering - Steering System - Circuit

Pilot, load sensing
Hydraulic System - Steering - Steering System - Pump

Piston, variable displacement
Hydraulic System - Steering - Maximum Flow

270.0 l/min ( 71.3 gal/min )
Hydraulic System - Steering - Relief Valve Setting - Steering

30000.0 kPa ( 4351.0 psi )
Hydraulic System - Steering - Total Steering Angle

86 °
Hydraulic System - Steering - Steering Cycle Times - High Idle

3.4 s ( 3.4 s )
Hydraulic System - Steering - Steering Cycle Times - Low Idle

5.6 s ( 5.6 s )
Air Conditioning System - Air Conditioning

The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.8 kg of refrigerant which has a CO2 equivalent of 2.574 metric tonnes.
Axles - Front

Fixed
Axles - Rear

Trunnion
Axles - Oscillation Angle

13 °
Brakes

ISO 3450:2011
Operator's Cab - ROPS/FOPS

ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards
Service Refill Capacities - Fuel Tank

712.0 l ( 188.0 gal (US) )
Service Refill Capacities - Cooling System

120.0 l ( 31.7 gal (US) )
Service Refill Capacities - Coolant (Validated by Test Cell Fill Quantities)

125 l ( 33 gal (US) )
Service Refill Capacities - Crankcase

60.0 l ( 15.9 gal (US) )
Service Refill Capacities - Diesel Exhaust Fluid Tank

33 l ( 8.7 gal (US) )
Service Refill Capacities - Transmission

120.0 l ( 31.7 gal (US) )
Service Refill Capacities - Transmission - Validated by Test Cell Fill Quantities

110 l ( 29 gal (US) )
Service Refill Capacities - Differential - Final Drives - Front

186.0 l ( 49.1 gal (US) )
Service Refill Capacities - Differential - Final Drives - Rear

186.0 l ( 49.1 gal (US) )
Service Refill Capacities - Hydraulic System Factory Fill

475.0 l ( 125.5 gal (US) )
Service Refill Capacities - Hydraulic System - Tank Only

240.0 l ( 63.4 gal (US) )
Sound Performance - Tier 4 Final / Stage V - Standard - Operator Sound Pressure Level (ISO 6396:2008)

73 dB(A) ( 73 dB(A) )
Sound Performance - Tier 4 Final / Stage V - Standard - Machine Sound Power Level (ISO 6395:2008)

111 dB(A) ( 111 dB(A) )
Sound Performance - Tier 3 / Stage III - Standard - Operator Sound Pressure Level (ISO 6396:2008)

73 dB(A) ( 73 dB(A) )
Sound Performance - Tier 3 / Stage III - Standard - Machine Sound Power Level (ISO 6395:2008)

112 dB(A) ( 112 dB(A) )
Dimensions (Approximate) - Standard Lift Linkage - Ground to Top of ROPS

4202 mm ( 13.8 ft )
Dimensions (Approximate) - Standard Lift Linkage - Ground to Top of Exhaust Stacks

4521 mm ( 14.8 ft )
Dimensions (Approximate) - Standard Lift Linkage - Ground to Top of Hood

3334 mm ( 10.9 ft )
Dimensions (Approximate) - Standard Lift Linkage - Rear Axle - Centerline to Bumper

3187 mm ( 10.5 ft )
Dimensions (Approximate) - Standard Lift Linkage - Front Axle Centerline to Bucket Tip

4254 mm ( 14.0 ft )
Dimensions (Approximate) - Standard Lift Linkage - Wheel Base

4550 mm ( 14.9 ft )
Dimensions (Approximate) - Standard Lift Linkage - Maximum Overall Length

11991 mm ( 39.3 ft )
Dimensions (Approximate) - Standard Lift Linkage - Ground to Lower Hitch Clearance

568 mm ( 1.9 ft )
Dimensions (Approximate) - Standard Lift Linkage - Clearance at Maximum Lift

3641 mm ( 11.9 ft )
Dimensions (Approximate) - Standard Lift Linkage - B-Pin Height - Maximum Lift

5491 mm ( 18.0 ft )
Dimensions (Approximate) - Standard Lift Linkage - Maximum Overall Height - Bucket Raised

7455 mm ( 24.5 ft )
Dimensions (Approximate) - Standard Lift Linkage - Reach - Maximum Lift

1981 mm ( 6.5 ft )
Dimensions (Approximate) - High Lift Linkage - Ground to Top of ROPS

4202 mm ( 13.8 ft )
Dimensions (Approximate) - High Lift Linkage - Ground to Top of Exhaust Stacks

4521 mm ( 14.8 ft )
Dimensions (Approximate) - High Lift Linkage - Ground to Top of Hood

3334 mm ( 10.9 ft )
Dimensions (Approximate) - High Lift Linkage - Rear Axle - Centerline to Bumper

3187 mm ( 10.5 ft )
Dimensions (Approximate) - High Lift Linkage - Front Axle Centerline to Bucket Tip

4661 mm ( 15.3 ft )
Dimensions (Approximate) - High Lift Linkage - Wheel Base

4550 mm ( 14.9 ft )
Dimensions (Approximate) - High Lift Linkage - Maximum Overall Length

12398 mm ( 40.7 ft )
Dimensions (Approximate) - High Lift Linkage - Ground to Lower Hitch Clearance

568 mm ( 1.9 ft )
Dimensions (Approximate) - High Lift Linkage - Clearance at Maximum Lift

4043 mm ( 13.3 ft )
Dimensions (Approximate) - High Lift Linkage - B-Pin Height - Maximum Lift

5887 mm ( 19.3 ft )
Dimensions (Approximate) - High Lift Linkage - Maximum Overall Height - Bucket Raised

7849 mm ( 25.8 ft )
Dimensions (Approximate) - High Lift Linkage - Reach - Maximum Lift

2062 mm ( 6.8 ft )
Buckets - Bucket Capacities

4.7-13 m3 (6.2-17 yd3)

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