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    988 GC Wheel Loader
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    988 XE Wheel Loader
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    Engine
    Engine Model Cat® C15 Cat® C18 ™ -
    Rated Speed 2000 1,700 rpm -
    Peak Power Speed 1600 1,500 rpm -
    Engine Power - ISO 14396 449 HP - -
    Gross Power - SAE J1995 456 HP - -
    Net Power - SAE J1349 373 HP 538 HP -
    Emissions U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 -
    Bore 5.4 in 5.7 in -
    Stroke 6.75 in 7.2 in -
    Displacement 927 in³ 1105 in³ -
    Peak Torque - 1,200 rpm - SAE J1995 1778 ft·lbf 2230 ft·lbf -
    Torque Rise 16% 58% -
    Engine Power - ISO 14396:2002 - 580 HP -
    Gross Power - SAE J1995:2014 - 588 HP -

    Operating Specifications
    Operating Weight 116858 lb 116362 lb -
    Rated Payload - Quarry Face 12.5 ton (US) - -
    Bucket Capacity Range 6.4-7.6 m3 (8.3-10 yd3) 4.7-13 m3 (6.2-17 yd3) -
    Cat Truck Match - High Lift 772/773/775 - -
    Operating Weight - Standard - 116362 lb -
    Operating Weight - High Lift - 119618 lb -
    Rated Payload - Standard (Quarry Face) - 12.5 ton (US) -
    Rated Payload - Loose Material (Standard) - 16 ton (US) -

    Transmission
    Transmission Type Cat planetary power shift Cat switched reluctance electric drive -
    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 - -
    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 -

    Hydraulic System - Lift/Tilt
    Lift/Tilt System - Circuit EH - Load Sense EH-Positive Flow Control, Flow Sharing -
    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 4757 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 27 in -
    Lift/Tilt System - Pump - Variable displacement piston -
    Maximum Flow at 1,400-1,600 rpm - 153 gal/min -
    Lift Cylinder - Bore - 8.7 in -
    Lift Cylinder - Stroke - 41.3 in -
    Tilt Cylinder - Bore - 8.7 in -

    Hydraulic Cycle Times
    Rack Back 3.8 s 4.5 s -
    Raise 7.5 s 8 s -
    Dump 3 s 2.2 s -
    Lower Float Down 4.6 s 3.5 s -
    Total Hydraulic Cycle Time - Empty Bucket 18.9 s - -
    Total Hydraulic Cycle Time - 18.2 s -

    Hydraulic System - Steering
    Steering System - Circuit Pilot, load sensing Pilot, load sensing -
    Steering System - Pump Piston, variable displacement Piston, variable displacement -
    Maximum Flow 52 gal (US) - -
    Relief Valve Setting - Steering 4000 psi - -
    Total Steering Angle 70° 86° -
    Steering Cycle Times - High Idle 3 s 3.4 s -
    Steering Cycle Times - Low Idle 5.2 s 5.6 s -
    Maximum Flow at 1,400-1,600 rpm - 71.3 gal/min -
    Steering Cut Off Pressure - 4351 psi -

    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. 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 Fixed -
    Rear Trunnion Trunnion -
    Oscillation Angle +/-12.5° 13° -

    Brakes
    Brakes ISO 3450:2011 ISO 3450:2011 -

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

    Service Refill Capacities
    Fuel Tank 141 gal (US) 147 gal (US) -
    Cooling System 27 gal (US) - -
    Engine Crankcase 9 gal (US) 16 gal (US) -
    Diesel Exhaust Fluid Tank 5.5 gal (US) 8.7 gal (US) -
    Transmission 20 gal (US) 16 gal (US) -
    Differential - Final Drives - Front 49 gal (US) 49 gal (US) -
    Differential - Final Drives - Rear 45 gal (US) 49 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 All nonroad Tier 4 Final/Stage V diesel engines are required to use: – The machine has the flexibility to run on either ultra-low-sulfur diesel fuel (ULSD with 15 ppm of sulfur or less). – Cat engines are compatible with the following renewable, alternati -
    Cooling System - Jacket Water - 30 gal (US) -
    Cooling Systems - Power Train - 8 gal (US) -
    Hydraulic System - Implement/Steering - 126 gal (US) -

    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 13.8 ft -
    Ground to Top of Exhaust Stacks 13.3 ft 14.8 ft -
    Ground to Top of Hood 10.7 ft 10.9 ft -
    Rear Axle - Centerline to Bumper 10.3 ft 10.5 ft -
    Front Axle Centerline to Bucket Tip 15.7 ft 15.3 ft -
    Wheel Base 12.5 ft 14.9 ft -
    Maximum Overall Length 39.5 ft 40.7 ft -
    Ground to Lower Hitch Clearance 1.5 ft 1.9 ft -
    Clearance at Maximum Lift 12 ft 13.3 ft -
    B-Pin Height - Maximum Lift 18.7 ft 19.3 ft -
    Maximum Overall Height - Bucket Raised 25 ft 25.8 ft -
    Reach - Maximum Lift 7.7 ft 6.8 ft -
    Note Specifications are calculated with 6.9 m3 (9.0 yd3 ) rock bucket equipped with Michelin XLDD1 35/65 R33 tires. Specs 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. -
    Ground to Bumper Clearance - 3.1 ft -
    Ground to Center of Axles - 3.2 ft -

    Buckets
    Bucket Capacities 6.4-7.6 m3 (8.3-10 yd3) 4.7-13 m3 (6.2-17 yd3) -

    Sustainability
    Recyclability 96% 96% -

    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 3 / Stage III - Standard
    Operator Sound Pressure Level (ISO 6396:2008) - 72 dB(A) -
    Machine Sound Power Level (ISO 6395:2008) - 110 dB(A) -

    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 - Specs 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 ° -
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