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    988 GC Wheel Loader
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    986 Wheel Loader
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    Engine
    Engine Model Cat® C15 C27 Cat® C15 Cat®
    Rated Speed 2000 1,800/min 2000
    Peak Power Speed 1600 - 1600
    Engine Power - ISO 14396 449 HP 752 HP 449 HP
    Gross Power - SAE J1995 456 HP 766 HP -
    Net Power - SAE J1349 373 HP - 373 HP
    Emissions U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 U.S. EPA TIer 4 Final and EU Stage V emission standards or U.S. EPA Tier 2 and EU Stage II equivalent U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards and Brazil MAR-1 emission standards, equivalent to China Nonroad Stage III, U.S. EPA Tier 3 and EU Stage IIIA
    Bore 5.4 in 5.4 in 5.4 in
    Stroke 6.75 in 6 in 6.75 in
    Displacement 927 in³ 1649.5 in³ 927 in²
    Peak Torque - 1,200 rpm - SAE J1995 1778 ft·lbf - 1778 lb/ft
    Torque Rise 16% 18 % 16%
    Net Power - SAE J1349 - Standard Ambient - 699 HP -
    Net Power - SAE J1349 - High Ambient - 648 HP -
    Peak Torque - 1,200 rpm - 2624 lb/ft -
    Peak Power Speed - Gross - SAE J1995 - - 456 HP
    Rated Speed - 2,000 rpm - EEC 80/1269 - - 373 HP
    Rated Speed - 2,000 rpm - EEC 80/1269 (DIN) - - 378 HP
    Rated Speed - 2,000 rpm - ISO 9249 - - 373 HP
    Rated Speed - 2,000 rpm - ISO 9249 (DIN) - - 378 HP

    Operating Specifications
    Operating Weight 116858 lb 178517 lb -
    Rated Payload - Quarry Face 12.5 ton (US) - -
    Bucket Capacity Range 6.4-7.6 m3 (8.3-10 yd3) 8.6 m³ – 10.0 m³ (11.25 yd³ – 13.0 yd³) 5-10,3 m³ (6,5-13,5 yd.³)
    Cat Truck Match - High Lift 772/773/775 775-777 772/773
    Rated Payload - Standard - 17.5 ton (US) -
    Rated Payload - High Lift - 17.5 ton (US) -
    Cat Truck Match - Standard - 773-775 770/735/740/745
    Operating Weight - Standard - - 97785 lb
    Operating Weight - High Lift - - 104005 lb
    Rated Payload - Standard (Quarry Face) - - 11 ton (US)
    Rated Payload - Loose Material (Standard) - - 14 ton (US)
    Rated Payload - High Lift (Quarry Face) - - 11 ton (US)
    Rated Payload - Loose Material (High Lift) - - 12.1 ton (US)

    Transmission
    Transmission Type Cat planetary power shift Cat planetary power shift Cat planetary power shift
    Forward - 1 5 mile/h 4.5 mile/h 5 mile/h
    Forward - 2 8 mile/h 8.3 mile/h 8 mile/h
    Reverse - 1 5 mile/h 4.9 mile/h 5 mile/h
    Reverse - 2 8 mile/h 9.1 mile/h 8 mile/h
    Direct Drive - Forward 1 Lock-up disabled Lock-up disabled -
    Direct Drive - Forward 2 8 mile/h 8.5 mile/h 8 mile/h
    Direct Drive - Forward 3 14 mile/h 15.2 mile/h 14 mile/h
    Direct Drive - Forward 4 24 mile/h - 24 mile/h
    Direct Drive - Reverse 1 Lock-up disabled 5.4 mile/h -
    Direct Drive - Reverse 2 9 mile/h 9.6 mile/h 9 mile/h
    Direct Drive - Reverse 3 16 mile/h 16.4 mile/h 16 mile/h
    Direct Drive - Reverse 4 25.4 mile/h - 25.4 mile/h
    Forward - 3 - 14.2 mile/h -
    Reverse - 3 - 15.5 mile/h -
    Note - Travel speeds based on Michelin 45/65R39 LD D2**L5 tires. -

    Hydraulic System - Lift/Tilt
    Lift/Tilt System - Circuit EH - Load Sense Positive flow control Load Sense
    Lift/Tilt System 2X x 145 cc Variable displacement piston Variable displacement piston -
    Maximum Flow at 2,165 rpm 159 gal/min - 123 gal/min
    Relief Valve Setting - Lift/Tilt 4598 psi 4786 psi 4050 psi
    Cylinders, Double Acting - Lift, Bore and Stroke 190 mm x 1216 mm (7.5 in x 48 in) 235 mm × 1287 mm (9.3 in × 50.7 in) -
    Cylinders, Double Acting - Tilt, Bore and Stroke 170 mm x 722 mm (6.7 in x 28.4 in) 292.1 mm × 820 mm (11.5 in × 32.3 in) -
    Pilot System Variable displacement piston Open loop and pressure reducing -
    Tilt Cylinder - Stroke 27 in - 28.4 in
    Maximum Flow at 1,800 rpm (1) - 240 gal/min -
    Relief Valve Setting - Main - 507 psi -
    Lift/Tilt System - Pump - - 2 × 110 cc variable displacement
    Lift Cylinder - Bore - - 7.5 in
    Lift Cylinder - Stroke - - 45 in
    Tilt Cylinder - Bore - - 6.7 in

    Hydraulic Cycle Times
    Rack Back 3.8 s 4.3 s 4.5 s
    Raise 7.5 s 8.2 s 9 s
    Dump 3 s 2.9 s 3.5 s
    Lower Float Down 4.6 s 3.6 s 4.3 s
    Total Hydraulic Cycle Time - Empty Bucket 18.9 s 13.8 s -
    Lower - 3.7 s 5.2 s
    Total Hydraulic Cycle Time - - 21.3 s

    Hydraulic System - Steering
    Steering System - Circuit Pilot, load sensing Pilot, load sensing Load Sense
    Steering System - Pump Piston, variable displacement Piston, variable displacement Piston, variable displacement
    Maximum Flow 52 gal (US) - -
    Relief Valve Setting - Steering 4000 psi 5004 psi -
    Total Steering Angle 70° 70° 70°
    Steering Cycle Times - High Idle 3 s - -
    Steering Cycle Times - Low Idle 5.2 s - -
    Maximum Flow at 1,400 rpm - 96.2 gal/min 52 gal/min
    Steering Cut Off Pressure - - 4000 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 2.7 kg of refrigerant which has a CO2 equivalent of 3.861 metric tonnes (4.256 tons). 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 Fixed
    Rear Trunnion Trunnion Trunnion
    Oscillation Angle +/-12.5° 8.5° ±12.5°
    Oscillation Angle - Chain Arrangement - - ±8.5°

    Brakes
    Brakes ISO 3450:2011 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 (ROPS) and ISO 3449:2005 Level II (FOPS)

    Service Refill Capacities
    Fuel Tank 141 gal (US) 294.3 gal (US) 141 gal (US)
    Cooling System 27 gal (US) 54.9 gal (US) -
    Engine Crankcase 9 gal (US) 20 gal (US) -
    Diesel Exhaust Fluid Tank 5.5 gal (US) - 6 gal (US)
    Transmission 20 gal (US) 29.1 gal (US) 20 gal (US)
    Differential - Final Drives - Front 49 gal (US) 71.6 gal (US) -
    Differential - Final Drives - Rear 45 gal (US) 68.9 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 U.S. EPA Tier 4 diesel engines are required to use only Ultra Low Sulfur Diesel (ULSD) fuels containing 15 ppm (mg/kg) sulfur or less. Biodiesel blends up to B20 (20% blend by volume) are acceptable when blended with 15 ppm (mg/kg) sulfur or l -
    Hydraulic System Factory Fill - 210 gal (US) 87 gal (US)
    Hydraulic Tank - Implement and Hydraulic Fan - 68.9 gal (US) -
    Hydraulic Tank - Steering and Braking - 34.9 gal (US) -
    Fuel Tank - Short Lift - - 127 gal (US)
    Cooling Systems - - 26 gal (US)
    Crankcase - - 9 gal (US)
    Axle Oil - Differentials and Final Drives - Front - - 49 gal (US)
    Axle Oil - Differentials and Final Drives - Rear - - 45 gal (US)
    Hydraulic System - Tank Only - - 34 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 - -
    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) 8.6 m³ – 10.0 m³ (11.25 yd³ – 13.0 yd³) -

    Sustainability
    Recyclability 96% - -

    Sound Performance - Standard
    Operator Sound Level (ISO 6396:2008) - 65.5 dB(A) -
    Machine Sound Level (ISO 6395:2008) - 115 dB(A) -
    Operator Sound Level (ISO 6396) - - 72 dB(A)
    Machine Sound Level (ISO 6395) - - 112 dB(A)
    Note - -
    • 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.
    • Hearing protection may be neede

    Sound Performance - Suppression
    Operator Sound Level (ISO 6396:2008) - 65.5 dB(A) -
    Machine Sound Level (ISO 6395:2008) - 113 dB(A) -
    Operator Sound Level (ISO 6396) - - 72 dB(A)
    Machine Sound Level (ISO 6395) - - 110 dB(A)
    Note - -
    • 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.
    • Hearing protection may be neede

    Dimensions (Approximate) - Standard Lift Linkage
    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
    Ground to Center of Front Axle - - 3.2 ft
    Ground to Fuel Tank Clearance - - 2.3 ft
    Ground to Lower Hitch Clearance - - 1.5 ft
    Reach - Maximum Lift - - 7.1 ft
    Clearance at Maximum Lift - - 10.1 ft
    B-Pin Height - Maximum Lift - - 16.1 ft
    Maximum Overall Height - Bucket Raised - - 22.4 ft
    Rear Axle - Centerline to Bumper - - 10.3 ft
    Wheel Base - - 12.5 ft
    Maximum Overall Length - - 36.6 ft
    Front Axle Centerline to Bucket Tip - - 13.8 ft
    Note - -
    • All dimensions are approximate.
    • Specs are calculated with a 6.1 m³ (8.0 yd³) rock bucket.

    Dimensions (Approximate) - High Lift Linkage
    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
    Ground to Center of Front Axle - - 3.2 ft
    Ground to Fuel Tank Clearance - - 2.3 ft
    Ground to Lower Hitch Clearance - - 1.5 ft
    Reach - Maximum Lift - - 7.4 ft
    Clearance at Maximum Lift - - 11.6 ft
    B-Pin Height - Maximum Lift - - 17.6 ft
    Maximum Overall Height - Bucket Raised - - 23.9 ft
    Rear Axle - Centerline to Bumper - - 10.3 ft
    Wheel Base - - 12.5 ft
    Maximum Overall Length - - 38 ft
    Front Axle Centerline to Bucket Tip - - 15.3 ft
    Note - -
    • All dimensions are approximate.
    • Specs are calculated with a 6.1 m³ (8.0 yd³) rock bucket.

    Dimensions (Approximate) - Quick Coupler and 6.1 m³ (8.0 yd³) Bucket
    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
    Ground to Center of Rear Axle - - 3.2 ft
    Ground to Fuel Tank Clearance - - 2.3 ft
    Ground to Lower Hitch Clearance - - 1.5 ft
    Reach at Maximum Lift - - 8 ft
    Clearance at Maximum Lift - - 10.7 ft
    B-Pin Height at Maximum Lift - - 15 ft
    Maximum Overall Height, Bucket Raised - - 20.9 ft
    Rear Axle Center Line to Bumper - - 10.3 ft
    Wheel Base - - 12.5 ft
    Maximum Overall Length - - 35 ft
    Front Axle Centerline to Bucket Tip - - 12.2 ft

    Dimensions (Approximate) - Quick Coupler and Fork
    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
    Ground to Center of Rear Axle - - 3.2 ft
    Ground to Fuel Tank Clearance - - 2.3 ft
    Ground to Lower Hitch Clearance - - 1.5 ft
    B-Pin Height at Maximum Lift - - 15 ft
    Rear Axle Center Line to Bumper - - 10.3 ft
    Wheel Base - - 12.5 ft
    Maximum Overall Length - - 35.4 ft
    Front Axle Centerline to Bucket Tip - - 12.6 ft
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