988 GC Wheel Loader

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Description

Technical Specifications

Benefits and Features

Equipment

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The Cat® 988 GC Wheel Loader helps you move more material at a lower cost per hour for a faster return on your investment. This machine offers significant fuel savings and up to 10% lower owning and operating cost than the 988K.

Engine
Engine Model	Cat® C15
Rated Speed	2000
Peak Power Speed	1600
Engine Power - ISO 14396:2002	449 hp
Gross Power - SAE J1995:2014	456 hp
Net Power - SAE J1349:2011	373 hp
Emissions	U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014
Bore	5.4 in
Stroke	6.75 in
Displacement	927 in³
Peak Torque - 1,200 rpm - SAE J1995	1778 ft·lbf
Torque Rise	16%
Operating Specifications
Operating Weight	116858 lb
Rated Payload - Quarry Face	12.5 ton (US)
Bucket Capacity Range	6.4-7.6 m3 (8.3-10 yd3)
Cat Truck Match - High Lift	772/773/775
Transmission
Transmission Type	Cat planetary power shift
Forward - 1	5 mile/h
Forward - 2	8 mile/h
Reverse - 1	5 mile/h
Reverse - 2	8 mile/h
Direct Drive - Forward 1	Lock-up disabled
Direct Drive - Forward 2	8 mile/h
Direct Drive - Forward 3	14 mile/h
Direct Drive - Forward 4	24 mile/h
Direct Drive - Reverse 1	Lock-up disabled
Direct Drive - Reverse 2	9 mile/h
Direct Drive - Reverse 3	16 mile/h
Direct Drive - Reverse 4	25.4 mile/h
Hydraulic System - Lift/Tilt
Lift/Tilt System - Circuit	EH - Load Sense
Lift/Tilt System	2X x 145 cc Variable displacement piston
Maximum Flow at 2,165 rpm	159 gal/min
Relief Valve Setting - Lift/Tilt	4598 psi
Cylinders, Double Acting - Lift, Bore and Stroke	190 mm x 1216 mm (7.5 in x 48 in)
Cylinders, Double Acting - Tilt, Bore and Stroke	170 mm x 722 mm (6.7 in x 28.4 in)
Pilot System	Variable displacement piston
Tilt Cylinder - Stroke	27 in
Hydraulic Cycle Times
Rack Back	3.8 s
Raise	7.5 s
Dump	3 s
Lower Float Down	4.6 s
Total Hydraulic Cycle Time - Empty Bucket	18.9 s
Hydraulic System - Steering
Steering System - Circuit	Pilot, load sensing
Steering System - Pump	Piston, variable displacement
Maximum Flow	52 gal (US)
Relief Valve Setting - Steering	4000 psi
Total Steering Angle	70°
Steering Cycle Times - High Idle	3 s
Steering Cycle Times - Low Idle	5.2 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
Rear	Trunnion
Oscillation Angle	+/-12.5°
Brakes
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	141 gal (US)
Cooling System	27 gal (US)
Engine Crankcase	9 gal (US)
Diesel Exhaust Fluid Tank	5.5 gal (US)
Transmission	20 gal (US)
Differential - Final Drives - Front	49 gal (US)
Differential - Final Drives - Rear	45 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) or ULSD blended with the following lower-carbon intensity fuels up to: - 20% biodiesel FAME (fatty a
Sound Performance - Tier 4 Final/EU Stage V - Standard
Operator Sound Level (ISO 6396)	72 dB(A)
Machine Sound Level (ISO 6395)	110 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.
Dimensions (Approximate) - High Lift
Ground to Top of ROPS	13.5 ft
Ground to Top of Exhaust Stacks	13.3 ft
Ground to Top of Hood	10.7 ft
Rear Axle - Centerline to Bumper	10.3 ft
Front Axle Centerline to Bucket Tip	15.7 ft
Wheel Base	12.5 ft
Maximum Overall Length	39.5 ft
Ground to Lower Hitch Clearance	1.5 ft
Clearance at Maximum Lift	12 ft
B-Pin Height - Maximum Lift	18.7 ft
Maximum Overall Height - Bucket Raised	25 ft
Reach - Maximum Lift	7.7 ft
Note	Specifications are calculated with 6.9 m3 (9.0 yd3 ) rock bucket equipped with Michelin XLDD1 35/65 R33 tires.
Buckets
Bucket Capacities	6.4-7.6 m3 (8.3-10 yd3)
Sustainability
Recyclability	96%

PROVEN RELIABILITY

Proven Reliability

Cat C15 engine is built and tested to meet your most demanding applications.

Cat torque converter with lock-up clutch eliminates torque converter losses and lowers system heat.

Maximum responsiveness with Steering and Integrated Control (STIC™).

Moves more material more efficiently with improved power and control.

Transmission neutralizer pedal extends service brake life and allows full power during stationary loading.

Mechanically Actuated Electronic Unit Injection (MEUI™) fuel system and Advanced Diesel Engine Management (ADEM™) A5 electronic control module manage fuel delivery for optimum performance and quick engine response.

LONG TERM VALUE AND DURABILITY

Durability

Best-in-class transmission for long life and consistent, smooth shifting; specifically designed for mining applications.

Advanced Productivity Electronic Control Shifting (APECS) transmission controls for greater momentum on grades.

Positive Flow Control (PFC) hydraulic system increases efficiency, bucket feel, and responsiveness with consistent performance.

Advanced filtration system for extended performance and reliability of the hydraulic system.

Impeller Clutch Torque Converter (ICTC) minimizes tire spin by allowing torque to adjust to underfoot conditions.

Advanced filtration system for extended performance and reliability of the hydraulic system.

ACHIEVE GREATER PRODUCTIVITY

Achieve Productivity Targets

Optimum 50-ton truck match loader.

Dump clearance designed for efficient truck loading up to 775G.

Improved visibility over the top of the linkage.

Rated payload aligned with 988K.

Convenient, responsive electro-hydraulic controls increase operator productivity.

Integrated steering and transmission controls.

POWERFUL EFFICIENCY

Superior Fuel Efficiency

Up to 5% less fuel consumption than the 988K.

Flow sharing hydraulics for full flow at reduced engine rpm.

Fully integrated electronic engine controls make your fuel go farther.

Engine Idle Shutdown for less fuel used while idling.

PRODUCTIVITY WITH TECHNOLOGY

Increase Productivity and Efficiency with Integrated Technologies

Cat Technologies developed to monitor, manage, and enhance your jobsite operations.

Cat Payload ready provides accurate weighing* of the materials you are loading and hauling. Payload data is displayed in real-time to improve productivity and reduce overloading.

Optional Cat Detect enhances awareness of the environment around working equipment and provides alerts to help keep people and assets safe on the jobsite.

Product Link™ wirelessly connects you to your equipment, giving you access to essential information you need to know to run your business. Gain valuable insight into how your machine or fleet is performing.

Optional Advanced Productivity subscription provides comprehensive actionable information to help you manage and improve the productivity and profitability of your operations.

Standard work tool recognition provides awareness of bucket install.

*Not legal for trade.

SAFETY FIRST

Safety Features

Achieve precise positioning for easy loading in tight areas with 43 degrees of steering articulation.

Precise machine control by load-sensing hydraulic steering system.

Standard LED lights for improved visibility.

Optional left- and right-hand stairs with 45-degree angle.

Computerized monitoring system with warning indicators.

Standard rear Cat Vision enhances visibility behind the machine, helping you work safely and confidently.

Pressurized cabin with filtered air and reduced sound levels.

SAVE ON SERVICE AND MAINTENANCE

Reduced Maintenance Time and Costs

Up to 25% lower maintenance costs than the 988K.

Grouped service points provide easy access to critical daily service checks.

Electro-hydraulic controls.

Swing-out engine compartment service doors.

Reduced waste with maintenance-free batteries.

Ecology drains to prevent spilled contaminants and allow for easier service.

Vehicle Information Management System (VIMS™) notifications to resolve problems before failure.

Ground level access to transmission control valves.

OPERATOR COMFORT AND CONTROL

Easy, Comfortable Operator Environment

Best-in-class operator comfort and ergonomics.

Comfort Series III seats with extra thick, contoured cushions provide total comfort throughout the workday.

Easy-to-reach levers and seat-mounted implement pod to reduce fatigue.

Ergonomic switch placement and displays with large, backlit switches and LED indicators.

Two-position rocker switch activates the electro hydraulic parking brake.

Reduced vibrations from isolated cab mounts and seat air suspension.

Automatic cab temperature controls.

Up to 47% quieter STIC steering significantly reduces operator sound levels.

SUSTAINABILITY

Sustainability

The Cat® C15 engine is available in configurations that meet U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards or Brazil MAR-1 and China Nonroad Stage III emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA.

The 988 GC emits up to 5% less CO2/hr than the 988K.

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) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels

Cat engines meeting Brazil MAR-1 and China Nonroad Stage III, 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)** or 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.

Engine Idle Management System and Auto Engine Idle Shutdown reduces idle RPM and maximize fuel efficiency.

Load sensing hydraulics produce flow and pressure on-demand and only in amounts necessary to perform the needed functions.

Cat Payload technology maximizes loading efficiency, helping operators of every skill level work more accurately to reduce load time, fuel costs and greenhouse gas emissions.

Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.

Optional Cat clean emissions module includes Diesel Particulate Filter (DPF), Diesel Oxidation Catalyst (DOC), and Selective Catalytic Reduction (SCR) technologies to reduce the engine’s emissions.

*All comparisons to 988K. Productivity, fuel and CO2 emissions vary by application. CO2 emissions calculations based on a reference work cycle using 2.2 U.S. gallons per hour of #2 U.S. diesel fuel. Applies IPCC2006 methodology using U.S. EPA Emissions Hub emission factors. Includes DEF (diesel exhaust fluid) related CO2. Fuel measurements are at 15°C. Estimated average fuel consumption improvements are based on tests or Product Link™️ data where available. Productivity improvements are based on test data.

Standard Equipment:

Note
- Standard and optional equipment may vary. Consult your Cat dealer for details.
Electrical
- Alarm, back-up
- Alternator, single 145 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
- Starter emergency start receptacle
- Transmission lockout in bumper
- Hazardous voltage lamp
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
- CB radio-ready
- Mirrors, rearview (externally mounted)
- Seat, Cat Comfort Cloth, air suspension, six-way adjustable
- Seat belt minder
- Seat belt, retractable, 76 mm (3 in) wide
- STIC Control System
- UV glass
- Virtual gear indicator
- 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
- Electro hydraulic parking brake
- Engine, C15 MEUI diesel, turbocharged/aftercooled
- Ground level engine shutoff
- Turbine precleaner, engine air intake
- Starting aid, ether, automatic
- Throttle lock, electronic
- Manual switch and automatic fuel priming
- Cat Production Measurement ready
- Cat SR Generator/Pump Drive
- Cat 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, 535 L (141 gal)
- Hoses, Cat XT^™
- Hydraulic, steering and brake filtration/screening system
- Cat Clean Emission Module
- 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