988

Engine Power - ISO 14396:2002: 580 hp / 432 kW
Operating Weight: 112574 lb / 51062 kg
Gross Power - SAE J1995:2014: 588 hp / 439 kW

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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988 Product Brochure 988 Technical Specifications (Global)

Specifications
Equipment
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Engine
Engine Power - ISO 14396:2002	580 hp / 432 kW
Engine Model	Cat® C18
Rated Speed	1700/rpm
Peak Power Speed	1500/rpm
Gross Power - SAE J1995:2014	588 hp / 439 kW
Net Power - SAE J1349:2011	538 hp / 401 kW
Bore	5.7 in / 145 mm
Stroke	7.2 in / 183 mm
Displacement	1105 in³ / 18.1 l
Peak Torque - 1,200 rpm	2104 lbf·ft / 2852 N·m
Torque Rise	58 %
Note (1)	Three engine emission 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. 3. Meets China Nonroad Stage IV emission standards.
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.

Operating Specifications
Operating Weight	112574 lb / 51062 kg
Bucket Capacity Range	4.7-13 m3 (6.2-17 yd3)
Rated Payload - Quarry Face	12.5 t / 11.3 t
Rated Payload - Loose Material	16 t / 14.5 t
Cat Truck Match - Standard	770 - 772
Cat Truck Match - High Lift	773 - 775

Transmission
Transmission Type	Cat planetary powershift
Forward - 1	4 mile/h / 6.5 km/h
Forward - 2	7.2 mile/h / 11.6 km/h
Forward - 3	12.7 mile/h / 20.4 km/h
Forward - 4	21.6 mile/h / 34.7 km/h
Reverse - 1	4.7 mile/h / 7.5 km/h
Reverse - 2	8.3 mile/h / 13.3 km/h
Reverse - 3	14.4 mile/h / 23.2 km/h
Direct Drive - Forward 1	Lock-up disabled
Direct Drive - Forward 2	7.8 mile/h / 12.5 km/h
Direct Drive - Forward 3	13.9 mile/h / 22.3 km/h
Direct Drive - Forward 4	24.4 mile/h / 39.3 km/h
Direct Drive - Reverse 1	5 mile/h / 8 km/h
Direct Drive - Reverse 2	8.9 mile/h / 14.3 km/h
Direct Drive - Reverse 3	15.8 mile/h / 25.5 km/h

Hydraulic System - Lift/Tilt
Lift/Tilt System - Circuit	EH- Positive Flow Control, Flow Sharing
Lift/Tilt System - Pump	Variable displacement piston
Maximum Flow at 1,400-1,860 rpm	153 gal/min / 580 l/min
Relief Valve Setting - Lift/Tilt	4757 psi / 32800 kPa
Cylinders, Double Acting - Lift, Bore and Stroke	210 mm × 1050 mm (8.7 in × 41.3 in)
Cylinders, Double Acting - Tilt, Bore and Stroke	266 mm × 685 mm (8.7 in × 27 in)
Pilot System	Variable displacement piston
Relief Valve Setting - Main	551 psi / 3800 kPa

Hydraulic Cycle Time (1,400-1,860 rpm)
Rack Back	4.5 s
Raise	8 s
Dump	2.2 s
Lower Float Down	3.5 s
Total Hydraulic Cycle Time - Empty Bucket	18.2 s

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 gal/min / 270 l/min
Relief Valve Setting - Steering	4351 psi / 30000 kPa
Total Steering Angle	86 °
Steering Cycle Times - High Idle	3.4 s
Steering Cycle Times - Low Idle	5.6 s

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
Brakes	ISO 3450:2011

Operator's Cab
ROPS/FOPS	ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards

Sound Performance - Tier 4 Final / Stage V
Operator Sound Pressure Level (ISO 6396:2008)	73 dB(A)
Machine Sound Power Level (ISO 6395:2008)	111 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 3 / Stage IIIA
Operator Sound Pressure Level (ISO 6396:2008)	73 dB(A)
Machine Sound Power Level (ISO 6395:2008)	112 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.

Service Refill Capacities
Fuel Tank	188 gal (US) / 712 l
Cooling System	31.7 gal (US) / 120 l
Coolant (Validated by Test Cell Fill Quantities)	33 gal (US) / 125 l
Crankcase	15.9 gal (US) / 60 l
Diesel Exhaust Fluid Tank (For Tier 4 Final/Stage V Only)	8.7 gal (US) / 33 l
Transmission	24.3 gal (US) / 92 l
Transmission - Validated by Test Cell Fill Quantities	29 gal (US) / 110 l
Differential - Final Drives - Front	49.1 gal (US) / 186 l
Differential - Final Drives - Rear	49.1 gal (US) / 186 l
Hydraulic System Factory Fill	125.5 gal (US) / 475 l
Hydraulic System - Tank Only	63.4 gal (US) / 240 l
Note	• All non-road Tier 4 Final/Stage V diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or 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. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. • 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). • For pre-Tier 4 engines: Cat engines 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. * For use of blends higher than 20% biodiesel, consult your Cat dealer. ** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels.

Dimensions (Approximate) - Standard Lift Linkage
Ground to Top of ROPS	13.8 ft / 4202 mm
Ground to Top of Exhaust Stacks	14.8 ft / 4521 mm
Ground to Top of Hood	10.9 ft / 3334 mm
Rear Axle - Centerline to Bumper	10.5 ft / 3187 mm
Front Axle Centerline to Bucket Tip	14 ft / 4254 mm
Wheel Base	14.9 ft / 4550 mm
Maximum Overall Length	39.3 ft / 11991 mm
Ground to Lower Hitch Clearance	1.9 ft / 568 mm
Clearance at Maximum Lift	11.9 ft / 3641 mm
B-Pin Height - Maximum Lift	18 ft / 5485 mm
Maximum Overall Height - Bucket Raised	24.5 ft / 7455 mm
Reach - Maximum Lift	6.5 ft / 1981 mm

Dimensions (Approximate) - High Lift Linkage
Ground to Top of ROPS	13.8 ft / 4202 mm
Ground to Top of Exhaust Stacks	14.8 ft / 4521 mm
Ground to Top of Hood	10.9 ft / 3334 mm
Rear Axle - Centerline to Bumper	10.5 ft / 3187 mm
Front Axle Centerline to Bucket Tip	15.3 ft / 4661 mm
Wheel Base	14.9 ft / 4550 mm
Maximum Overall Length	40.7 ft / 12398 mm
Ground to Lower Hitch Clearance	1.9 ft / 568 mm
Clearance at Maximum Lift	13.3 ft / 4043 mm
B-Pin Height - Maximum Lift	19.3 ft / 5887 mm
Maximum Overall Height - Bucket Raised	25.8 ft / 7849 mm
Reach - Maximum Lift	6.8 ft / 2062 mm

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 (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
- CB radio ready
- Air conditioner
- Cat Vision, rear vision camera system
- 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
- Radio, AM/FM/CD/MP3 Bluetooth®
- 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
- 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
- Case drain screens
- Electro hydraulic parking brake
- Engine, C18 Mechanically Actuated Electronic Unit Injection (MEUI™) diesel, turbocharged/aftercooled
- Ground level engine shutdown switch
- Turbine precleaner, engine air intake
- Premixed 50% concentration of extended life coolant with freeze protection to –34° C (–29° F)
- 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
ADDITIONAL EQUIPMENT
- 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 (CEM)
- Oil sampling valves
- 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
- Crankcase guard
- Engine oil change system, high speed, Wiggins
- High ambient cooling – software
- Cat Production Measurement
OPERATOR ENVIRONMENT
- Cab precleaner
- LED warning strobe
- Window pull down visor
- Handrail mounted mirrors
ADDITIONAL EQUIPMENT
- Additional counterweight
- 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
OTHER OPTIONAL CONFIGURATIONS
- Aggregate Handler
- Block Handler
- Millyard
- Steel Mill

Block Handling

Cat Block Handling couplers are designed to withstand the demanding and harsh environment of block handling various applications.

Model	Width	Height	Weight
988K	78.7 in / 2000 mm	33.8 in / 858 mm	3523 lb / 1598 kg

Detect

On the surface, operators in the cabs of large mining equipment often cannot see if another machine or vehicle is too close for safe operation. Detect helps alleviate this potential safety hazard and can also be configured to provide valuable information about site conditions and other assets working in the area. Underground, continuous equipment movement on a longwall face can pose risks to those in the working area.

Model
Rear Object Detection for Wheel Loaders

Command

Combining the Fleet, Terrain, Detect and Health capabilities of Cat® MineStar™ System, Command enables you to implement remote control, semi-autonomous or fully autonomous mining equipment systems - offering unprecedented improvements in operator safety, equipment availability and site productivity.

Model
Cat Command Remote Control for Construction
Cat Command for Loading

Equipment Management

Cat® Equipment Management gives you access to the data you need to keep your equipment on the job site and earning money. You can track equipment location and hours, monitor machine use and health, then take informed action that will keep your operation running smoothly, efficiently and profitably.

Model
VisionLink®
Cat Inspect
Cat Product Link

Rock

Rock Buckets are designed for face or bank loading in mining or quarry applications. The straight-edge rock bucket provides higher breakout force and increased dump clearance. The spade-edge rock bucket offers increased penetration in certain applications.

Model	Width
6.9m³ (9yd³) Serrated Edge	156 in / 3970 mm
6.9m³ (9yd³) Performance Series	158 in / 4020 mm
6.4m³ (8.3yd³) Performance Series	158 in / 4020 mm
6.9m³ (9yd³) Performance Series	158 in / 4020 mm
7.7m³ (10yd³) Performance Series	158 in / 4020 mm
6.4m³ (8.3yd³) Serrated Edge	156 in / 3968 mm
6.9m³ (9yd³) Serrated Edge	156 in / 3968 mm

High Abrasion Rock

Designed for extremely abrasive applications, such as face loading shot rock and ore.

Model	Width	Bucket Linkage	GET Type
4.4m³ (5.75yd³) Iron Ore	155 in / 3940 mm	Pin-On	K130
4.7m³ (6.2yd³) Iron Ore	154 in / 3922 mm	Pin-on	K130

Coal - Performance Series

Maximum productivity in loading and stockpile applications.

Model	Width	Bucket Linkage
11.5m³ (15yd³)	162 in / 4120 mm	Pin-on
11.5m³ (15yd³)	162 in / 4120 mm	Pin-On
13m³ (17yd³)	162 in / 4120 mm	Pin-on

Heavy Duty Rock

At home in a mine or quarry, and armored to take the abrasion and abuse of production loading stone.

Model	Capacity - Adapters	Width	Bucket Linkage
6.4m³ (8.3yd³) Performance Series	8.3 yd³ / 6.4 m³	161 in / 4080 mm	Pin-on
6.4m³ (8.3yd³) Performance Series	8.3 yd³ / 6.4 m³	161 in / 4080 mm	Pin-on

Slag

Designed for continuous, heavy-duty work in hot slag.

Model	Width	Bucket Linkage
5.4m³ (7yd³)	154 in / 3900 mm	Pin-on
6.4m³ (8.3yd³)	159 in / 4032 mm	Pin-on

Productivity

VisionLink® Productivity is a cloud-based application that is scalable to any size operation. Detailed Cat Production Measurement data, machine data and jobsite data are transmitted from the onboard Cat Product Link™ device directly to the web platform, for you to access wherever you are, via your mobile, tablet or desktop device.

Model
VisionLink® Productivity
VisionLink® - Dispatch for Loading

Logging Forks

Logging Forks feature two independent top clamps that close down on the tine tips.

Model	Fork Width	Width - Over Tines	Width - Between Tines
2479mm (98in)	98 in / 2489 mm	95 in / 2412 mm	95 in / 2412 mm

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