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988 XE Wheel Loader

Net Power - SAE J1349:2011

538 hp

Operating Weight

116,362 lb

Engine Model

Cat® C18

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SPECIFICATIONS

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 over 60 years, built on a legacy of reliability, performance, safety, operator comfort, serviceability, and productivity. The 988 XE brings improved sustainability and maximum efficiency to this machine platform.

FULL SPECIFICATIONS

Air Conditioning System

Air Conditioning

The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. • If equipped with R134a (Global Warming Potential = 1430), the system contains 1.8 kg (3.9 lb) of refrigerant which has a CO2 equivalent of 2.574 metric tonnes (2.837 tons).

Axles

Front

Fixed

Rear

Trunnion

Oscillation Angle

13°

Brakes

ISO 3450:2011

Buckets

Bucket Capacities

4.7-13 m3 (6.2-17 yd3)

Dimensions (Approximate) - High Lift

Ground to Top of ROPS

13.8 ft

Ground to Top of Exhaust Stacks

14.8 ft

Ground to Top of Hood

10.9 ft

Ground to Bumper Clearance

3.1 ft

Rear Axle - Centerline to Bumper

10.5 ft

Front Axle Centerline to Bucket Tip

15.3 ft

Wheel Base

14.9 ft

Maximum Overall Length

40.7 ft

Ground to Lower Hitch Clearance

1.9 ft

Ground to Center of Axles

3.2 ft

Clearance at Maximum Lift

13.3 ft

B-Pin Height - Maximum Lift

19.3 ft

Maximum Overall Height - Bucket Raised

25.8 ft

Reach - Maximum Lift

6.8 ft

Note

Specifications are calculated with 6.9 m3 (9.0 yd3) rock bucket and Michelin XLDD2 with 978 mm (3.2 ft) centerline of rear axle height.

Dimensions (Approximate) - Standard Lift

Ground to Top of ROPS

13.8 ft

Ground to Top of Exhaust Stacks

14.8 ft

Ground to Top of Hood

10.9 ft

Ground to Bumper Clearance

3.1 ft

Rear Axle - Centerline to Bumper

10.5 ft

Front Axle Centerline to Bucket Tip

14 ft

Wheel Base

14.9 ft

Maximum Overall Length

39.3 ft

Ground to Lower Hitch Clearance

1.9 ft

Ground to Center of Axles

3.2 ft

Clearance at Maximum Lift

11.9 ft

B-Pin Height - Maximum Lift

18 ft

Maximum Overall Height - Bucket Raised

24.5 ft

Reach - Maximum Lift

6.5 ft

Note

Specifications are calculated with 6.9 m3 (9.0 yd3) rock bucket and Michelin XLDD2 with 978 mm (3.2 ft) centerline of rear axle height.

Dimensions - Millyard Linkage

Ground to Top of ROPS

13.8 ft

Ground to Top of Exhaust Stacks

13.8 ft

Ground to Top of Hood

10.9 ft

Ground to Bumper Clearance

3.1 ft

Rear Axle - Centerline to Bumper

10.5 ft

Front Axle Centerline to Fork Tip

16.5 ft

Wheel Base

14.9 ft

Maximum Overall Length

41.9 ft

Ground to Lower Hitch Clearance

1.9 ft

Ground to Center of Front Axle

3.2 ft

Fork Height with Level Arms

8.1 ft

Fork Top Clamp Opening

13.1 ft

Fork Height at Maximum Lift

17.2 ft

Hinge Pin Height at Maximum Lift

16.1 ft

Dump Angle at Maximum Lift

-39.4 °

Engine

Net Power - SAE J1349:2011

538 hp

Engine Model

Cat® C18

Engine Power - ISO 14396

580 HP

Gross Power - SAE J1995

588 HP

Rated Speed

1,700 rpm

Emissions

U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014

Peak Power Speed

1,500 rpm

Bore

5.7 in

Stroke

7.2 in

Displacement

1,105 in³

Peak Torque - 1,200 rpm - SAE J1995

2,230 ft·lbf

Torque Rise

58%

Engine Power - ISO 14396:2002

580 hp

Gross Power - SAE J1995:2014

588 hp

Peak Torque - 1,200 rpm

2,230 lbf·ft

Note (1)

Two engine emissions options are available: 1. Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards. 2. Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA.

Note (2)

Net power advertised is the power available at the flywheel when the engine is equipped with fan at minimum speed, air intake system, exhaust system, and alternator.

Hydraulic Cycle Times

Rack Back

4.5 s

Raise

8 s

Dump

2.2 s

Lower Float Down

3.5 s

Total Hydraulic Cycle Time

18.2 s

Hydraulic System - Lift/Tilt

Lift/Tilt System - Circuit

EH-Positive Flow Control, Flow Sharing

Lift/Tilt System - Pump

Variable displacement piston

Maximum Flow at 1,400-1,600 rpm

153 gpm

Relief Valve Setting - Lift/Tilt

4,757 psi

Lift Cylinder - Bore

8.7 in

Lift Cylinder - Stroke

41.3 in

Tilt Cylinder - Bore

8.7 in

Tilt Cylinder - Stroke

27 in

Hydraulic System - Steering

Steering System - Circuit

Pilot, load sensing

Steering System - Pump

Piston, variable displacement

Maximum Flow at 1,400-1,600 rpm

71.3 gpm

Steering Cut Off Pressure

4,351 psi

Total Steering Angle

86°

Steering Cycle Times - High Idle

3.4 s

Steering Cycle Times - Low Idle

5.6 s

Operating Specifications

Operating Weight

116,362 lb

Operating Weight - Standard

116,362 lb

Operating Weight - High Lift

119,618 lb

Rated Payload - Standard (Quarry Face)

12.5 ton (US)

Rated Payload - Loose Material (Standard)

16 ton (US)

Bucket Capacity Range

4.7-13 m3 (6.2-17 yd3)

Rated Payload - Quarry Face

12.5 t

Rated Payload - Loose Material

16 t

Operator's Cab

ROPS/FOPS

ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards

Service Refill Capacities

Fuel Tank

147 gal (US)

Cooling System - Jacket Water

30 gal (US)

Cooling Systems - Power Train

8 gal (US)

Engine Crankcase

16 gal (US)

Diesel Exhaust Fluid Tank

8.7 gal (US)

Transmission

16 gal (US)

Differential - Final Drives - Front

49 gal (US)

Differential - Final Drives - Rear

49 gal (US)

Hydraulic System - Implement/Steering

126 gal (US)

Note

Cat U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: • 20% biodiesel FAME (fatty acid methyl ester)*** • 100% renewable diesel, HVO (hydrotreated vegetable oil and GTL (gas-to- liquid) fuels • Cat engines meeting Brazil MAR-1 emissions standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA, are compatible with diesel fuel blended with the following lower-carbon intensity fuels** up to: • 100% biodiesel FAME (fatty acid methyl ester)*** • 100% renewable diesel, HVO (hydrotreated vegetable oil and GTL (gas-to- liquid) fuels Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. * While Caterpillar engines are compatible with these alternative fuels, some regions may not allow their use. ** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. *** Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).

Sound Performance - Tier 3 / Stage III - Standard

Operator Sound Pressure Level (ISO 6396:2008)

72 dB(A)

Machine Sound Power Level (ISO 6395:2008)

110 dB(A)

Sound Performance - Tier 3 / Stage IIIA

Operator Sound Pressure Level (ISO 6396:2008)

72 dB(A)

Machine Sound Power Level (ISO 6395:2008)

110 dB(A)

Operator Sound Pressure Level (ISO 6396:2008)*

72 dB(A)

Machine Sound Power Level (ISO 6395:2008)**

110 dB(A)

Note (1)

* For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives”

Note (2)

** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701

Note (3)

The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed.

Note (4)

The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed.

Note (5)

Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.

Sound Performance - Tier 4 Final / Stage V

Operator Sound Pressure Level (ISO 6396:2008)

72 dB(A)

Machine Sound Power Level (ISO 6395:2008)

109 dB(A)

Operator Sound Pressure Level (ISO 6396:2008)*

72 dB(A)

Machine Sound Power Level (ISO 6395:2008)**

109 dB(A)

Note (1)

* For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives”

Note (2)

** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701

Note (3)

The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed.

Note (4)

The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed.

Note (5)

Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.

Sound Performance - Tier 4 Final / Stage V - Standard

Operator Sound Pressure Level (ISO 6396:2008)

72 dB(A)

Machine Sound Power Level (ISO 6395:2008)

109 dB(A)

Sound Performance - Tier 4 Final/EU Stage V - Standard

Operator Sound Level (ISO 6396)

72 dB(A)

Machine Sound Level (ISO 6395)

109 dB(A)

Note (1)

The operator sound pressure level was measured according to the test procedures and conditions specified in ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.

Note (2)

Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.

Note (3)

The machine sound power level was measured according to the test procedures and conditions specified in ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.

Sustainability

Recyclability

96%

Transmission

Transmission Type

Cat switched reluctance electric drive

Forward 1 (virtual)

4.3 mile/h

Forward 2 (virtual)

7 mile/h

Forward 3 (virtual)

13.8 mile/h

Forward 4 (virtual)

20 mile/h

Reverse 1 (virtual)

4.3 mile/h

Reverse 2 (virtual)

7 mile/h

Reverse 3 (virtual)

17.5 mile/h

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
- High voltage indicator light
- Lighting system (LED, work lights, access and service platform lighting)
- Starting and charging system, 24V
- Auxiliary 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
- Cat Production Measurement ready
- Cab, sound suppressed and pressurized, integrated rollover protective structure / falling objects 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
  – Powertrain oil temperature
- Light, cab, dome
- Lunchbox, beverage holders
- CB radio-ready
- Mirrors, rearview (externally mounted)
- Rimpull Control System (RCS)
- Seat, Deluxe
- Seat belt minder
- Seat belt, retractable, 76 mm (3 in) wide
- Steering and Transmission Integrated Control (STIC™) system
- UV glass
- Virtual gear indicator
- Vital Information Management System (VIMS™) with Graphical Information Display: External Data Port
- Wet-arm wipers/washers (front and rear)
  – Intermittent front and rear wipers
- Lights, directional
POWERTRAIN
- Brakes, oil-cooled, multi-disc, service/secondary
- Hydraulic system case drain screens
- Electro hydraulic parking brake
- Engine, C18 Mechanically Actuated Electronic Unit Injection (MEUI™) diesel, turbocharged/aftercooled
- Engine oil change system, high speed, Wiggins
- Ground level engine shutdown switch
- Turbine precleaner, engine air intake
- Radiator, Aluminum Modular Radiator (AMR)
- Single Pedal Mode with three levels of dynamic braking
- Starting aid, ether, automatic
- Throttle lock, electronic
- Manual switch and automatic fuel priming
- Cat switched reluctance (SR) generator/pump drive
- Cat switched reluctance (SR) drive motor
- Cat Integrated Powered Electronics
- Automatic retarding controls
ADDITIONAL EQUIPMENT
- 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, 555 L (147 gal)
- Hitch, drawbar with pin
- Hoses, Cat XT™
- Hydraulic, steering and brake filtration/screening system
- Cat Clean Emission Module (CEM)
- Operator assist feature, Tire Slip Prevention
- Oil sampling valves
- Premixed 50 percent 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

OPTIONAL EQUIPMENT

NOTE
- Standard and optional equipment may vary. Consult your Cat dealer for details.
POWERTRAIN
- –50° C (–58° F) antifreeze
- Engine block heater 120V or 240V
- High ambient cooling – software
- Crankcase guard
- Engine brake, software enabled attachment (SEA)
OPERATOR ENVIRONMENT
- Cab precleaner
- Cat Detect, object detection system
- Cat Production Measurement
- Radio, AM/FM/CD/MP3 Bluetooth®
- LED warning strobe
- Window pull down visor
- Handrail mounted mirrors
ADDITIONAL EQUIPMENT
- Front and rear roading fenders
- Fast fill fuel system (Shaw-Aero)
- Cold Weather Package: Additional Starter and 2 Batteries, Engine Block Heater 120V or 240V, Heated Fuel Lines
- Engine compartment service lights
- Autolube with Auto shutoff
- Generative braking
- Wheel Chocks
- Operator Coaching
- Tire Pressure Monitoring System
- Operator assist features, Auto Set Tires, and Lift Stall Prevention
- Additional Counterweight
OTHER OPTIONAL CONFIGURATIONS
- Aggregate Handler
- Millyard