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988 GC

Cat® Large Wheel Loaders set the standard for optimized productivity, minimizing downtime, enhancing operator comfort, and protecting people on your jobsite through key safety features.

988 GC

Cat® Large Wheel Loaders set the standard for optimized productivity, minimizing downtime, enhancing operator comfort, and protecting people on your jobsite through key safety features.
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
    +/-12.5°
Brakes
  • Brakes
    ISO 3450:2011
Dimensions (Approximate) - High Lift
  • Ground to Top of ROPS
    13.5 ft 4100 mm
  • Ground to Top of Exhaust Stacks
    13.3 ft 4060 mm
  • Ground to Top of Hood
    10.7 ft 3270 mm
  • Ground to Fuel Tank Clearance
    2.2 ft 686 mm
  • Rear Axle - Centerline to Bumper
    10.3 ft 3132 mm
  • Front Axle Centerline to Bucket Tip
    16.7 ft 5100 mm
  • Wheel Base
    12.5 ft 3810 mm
  • Maximum Overall Length
    39.5 ft 12042 mm
  • Ground to Lower Hitch Clearance
    1.5 ft 459 mm
  • Ground to Center of Front Axle
    3.2 ft 978 mm
  • Clearance at Maximum Lift (45° Dump)
    12 ft 3732 mm
  • B-Pin Height - Maximum Lift
    18.7 ft 5755 mm
  • Maximum Overall Height - Bucket Raised
    25 ft 7582 mm
  • Reach at Maximum Lift (45° Dump)
    7.7 ft 2342 mm
  • Note
    Specifications are calculated with 6.9 m3 (9.0 yd3 ) rock bucket equipped with Michelin XLDD1 35/65 R33 tires.
Engine
  • Engine Model
    Cat® C15
  • Rated Speed
    2000 rpm
  • Peak Power Speed
    1600 rpm
  • Gross Power - SAE J1995:2014
    456 hp 340 kW
  • Net Power - SAE J1349:2011
    448 hp 334 kW
  • Bore
    5.4 in 137 mm
  • Stroke
    6.75 in 171.5 mm
  • Displacement
    927 in³ 15.2 l
  • Peak Torque (1,200 rpm) - SAE J1995:2014
    1778 lbf·ft 2411 N·m
  • Torque Rise
    16%
  • Note (1)
    Two engine emission options are available: 1. Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 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.
  • Note (3)
    Net power at the flywheel when the fan is at maximum speed is 304 kW / 408 hp per SAE reference conditions.
Hydraulic Cycle Times
  • Rack Back
    3.8 s 3.8 s
  • Raise
    7.5 s 7.5 s
  • Dump
    3 s 3 s
  • Lower Float Down
    4.6 s 4.6 s
  • Total Hydraulic Cycle Time - Empty Bucket
    18.9 s 18.9 s
Hydraulic System - Lift/Tilt
  • Lift/Tilt System - Circuit
    EH - Load Sense
  • Lift/Tilt System - Pump
    Variable displacement piston
  • Maximum Flow at 2,165 rpm
    159 gal/min 600 l/min
  • Relief Valve Setting - Lift/Tilt
    4598 psi 31700 kPa
  • 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
  • Relief Valve Setting
    500 psi 3450 kPa
Hydraulic System - Steering
  • Steering System - Circuit
    Pilot, load sensing
  • Steering System - Pump
    Piston, variable displacement
  • Maximum Flow at 2,165 rpm
    52 gal/min 200 l/min
  • Relief Valve Setting - Steering
    4000 psi 27600 kPa
  • Total Steering Angle
    70°
  • Steering Cycle Times - High Idle
    3 s 3 s
  • Steering Cycle Times - Low Idle
    5.2 s 5.2 s
Operating Specifications
  • Operating Weight
    112426 lb 50996 kg
  • Bucket Capacity Range
    6.4-7.6 m3 (8.3-10 yd3)
  • Rated Payload - Quarry Face
    12.5 ton (US) 11.3 t
  • Cat Truck Match - High Lift
    772/773/775
Operator's Cab
  • ROPS/FOPS
    Rollover Protective Structure/Falling Objects Protective Structure (ROPS/FOPS) meet ISO 3471:2008 and ISO 3449:2005 Level II standards
Service Refill Capacities
  • Fuel Tank
    141 gal (US) 535 l
  • Cooling System
    27 gal (US) 101 l
  • Engine Crankcase
    9 gal (US) 34 l
  • Diesel Exhaust Fluid Tank
    5.5 gal (US) 21 l
  • Transmission
    20 gal (US) 75 l
  • Differential - Final Drives - Front
    49 gal (US) 186 l
  • Differential - Final Drives - Rear
    45 gal (US) 170 l
  • Hydraulic System Factory Fill
    94 gal (US) 355 l
  • Note
    Cat 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 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 are compatible with higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).
Sound Performance - Tier 3 / Stage IIIA
  • Operator Sound Pressure Level (ISO 6396:2008)
    74 dB(A) 74 dB(A)
  • Machine Sound Power Level (ISO 6395:2008)
    113 dB(A) 113 dB(A)
  • Operator Sound Pressure Level (ISO 6396:2008)*
    73 dB(A) 73 dB(A)
  • Machine Sound Power Level (ISO 6395:2008)**
    110 dB(A) 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)
    73 dB(A) 73 dB(A)
  • Machine Sound Power Level (ISO 6395:2008)
    113 dB(A) 113 dB(A)
  • Operator Sound Pressure Level (ISO 6396:2008)*
    72 dB(A) 72 dB(A)
  • Machine Sound Power Level (ISO 6395:2008)**
    110 dB(A) 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.
Transmission
  • Transmission Type
    Cat planetary power shift
  • Forward - 1
    5 mile/h 7.3 km/h
  • Forward - 2
    8 mile/h 12.2 km/h
  • Reverse - 1
    5 mile/h 7.6 km/h
  • Reverse - 2
    8 mile/h 13.6 km/h
  • Direct Drive - Forward 1
    Lock-up disabled
  • Direct Drive - Forward 2
    8 mile/h 12.7 km/h
  • Direct Drive - Forward 3
    14 mile/h 22 km/h
  • Direct Drive - Forward 4
    24 mile/h 39 km/h
  • Direct Drive - Reverse 1
    Lock-up disabled
  • Direct Drive - Reverse 2
    9 mile/h 14.1 km/h
  • Direct Drive - Reverse 3
    16 mile/h 25 km/h
  • Direct Drive - Reverse 4
    25.4 mile/h 40.8 km/h
  • Note
    Travel speeds based on 35/65-R33 tires.
Benefits

        
  • 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 Transmission Integrated Control (STIC™).
  •     
  • Moves more material more efficiently with improved power and control.
  •     
  • Transmission neutralizer pedal helps extend 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.
        
  • World-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 helps increase 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) helps minimize tire spin by allowing torque to adjust to underfoot conditions.
  •     
  • Advanced filtration system for extended performance and reliability of the hydraulic system.
        
  • Optimum 50-ton truck match loader.
  •     
  • Dump clearance designed for efficient truck loading up to 775.
  •     
  • Improved visibility over the top of the linkage.
  •     
  • Rated payload aligned with 988.
  •     
  • Convenient, responsive electro-hydraulic controls help increase operator productivity.
  •     
  • Integrated steering and transmission controls.
        
  • 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.
        
  • 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.
        
  • 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.
        
  • 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 help prevent spills and allow for easy service.
  •     
  • Vehicle Information Management System (VIMS™) notifications to help resolve problems before failure.
  •     
  • Ground level access to transmission control valves.
        
  • World-class operator comfort and ergonomics.
  •     
  • Comfort Series III seats with extra thick, contoured cushions help provide total comfort throughout the workday.
  •     
  • Easy-to-reach levers and seat-mounted implement pod to help 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

        
  • 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 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 emission 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)** 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.
Equipment Info

NOTE

Standard and optional equipment may vary. Consult your Cat dealer for details.

ELECTRICAL

Alarm, back-up

OPERATOR ENVIRONMENT

Cab precleaner

POWERTRAIN

Brakes, oil-cooled, multi-disc, service/secondary

ADDITIONAL EQUIPMENT

Automatic bucket lift kickout/positioner
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