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    988 GC Wheel Loader
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    986 Wheel Loader
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    988 Wheel Loader
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    Engine
    Engine Model Cat® C15 C15 Cat® Cat® C18 ™
    Rated Speed 2000 2000 1700/min
    Peak Power Speed 1600 1600 1500/rpm
    Engine Power - ISO 14396 449 HP 449 HP -
    Gross Power - SAE J1995 456 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, 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 U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards, Brazil MAR-1 and China Nonroad Stage IV emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA, and U.S. EPA Tier 2 and EU Stage II
    Bore 5.4 in 5.4 in 5.7 in
    Stroke 6.75 in 6.75 in 7.2 in
    Displacement 927 in³ 927 in² 1105 in³
    Peak Torque - 1,200 rpm - SAE J1995 1778 ft·lbf 1778 lb/ft -
    Torque Rise 16% 16% 58 %
    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 -
    Net Power - SAE J1349:2011 - - 538 HP
    Engine Power - ISO 14396:2002 - - 580 HP
    Gross Power - SAE J1995:2014 - - 588 HP
    Peak Torque - 1,200 rpm - - 2230 lb/ft

    Operating Specifications
    Operating Weight 116858 lb - 112574 lb
    Rated Payload - Quarry Face 12.5 ton (US) - 12.5 t
    Bucket Capacity Range 6.4-7.6 m3 (8.3-10 yd3) 5-10,3 m³ (6,5-13,5 yd.³) 4.7-13 m3 (6.2-17 yd3)
    Cat Truck Match - High Lift 772/773/775 772/773 773～775
    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) -
    Cat Truck Match - Standard - 770/735/740/745 770～772
    Rated Payload - Loose Material - - 16 t

    Transmission
    Transmission Type Cat planetary power shift Cat planetary power shift Cat planetary powershift
    Forward - 1 5 mile/h 5 mile/h 4 mile/h
    Forward - 2 8 mile/h 8 mile/h 7.2 mile/h
    Reverse - 1 5 mile/h 5 mile/h 4.7 mile/h
    Reverse - 2 8 mile/h 8 mile/h 8.3 mile/h
    Direct Drive - Forward 1 Lock-up disabled - Lock-up disabled
    Direct Drive - Forward 2 8 mile/h 8 mile/h 7.8 mile/h
    Direct Drive - Forward 3 14 mile/h 14 mile/h 13.9 mile/h
    Direct Drive - Forward 4 24 mile/h 24 mile/h 24.4 mile/h
    Direct Drive - Reverse 1 Lock-up disabled - 5 mile/h
    Direct Drive - Reverse 2 9 mile/h 9 mile/h 8.9 mile/h
    Direct Drive - Reverse 3 16 mile/h 16 mile/h 15.8 mile/h
    Direct Drive - Reverse 4 25.4 mile/h 25.4 mile/h -
    Forward - 3 - - 12.7 mile/h
    Forward - 4 - - 21.6 mile/h
    Reverse - 3 - - 14.4 mile/h

    Hydraulic System - Lift/Tilt
    Lift/Tilt System - Circuit EH - Load Sense Load Sense EH- Positive Flow Control, Flow Sharing
    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 4050 psi 4757 psi
    Cylinders, Double Acting - Lift, Bore and Stroke 190 mm x 1216 mm (7.5 in x 48 in) - 210 mm × 1050 mm (8.7 in × 41.3 in)
    Cylinders, Double Acting - Tilt, Bore and Stroke 170 mm x 722 mm (6.7 in x 28.4 in) - 269 mm × 685 mm (8.7 in × 27 in)
    Pilot System Variable displacement piston - Variable displacement piston
    Tilt Cylinder - Stroke 27 in 28.4 in -
    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 -
    Maximum Flow at 1,400-1,860 rpm - - 153 gal/min
    Relief Valve Setting - Main - - 551 psi

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

    Hydraulic System - Steering
    Steering System - Circuit Pilot, load sensing Load Sense Pilot, load sensing
    Steering System - Pump Piston, variable displacement Piston, variable displacement Piston, variable displacement
    Maximum Flow 52 gal (US) - 71.3 gal/min
    Relief Valve Setting - Steering 4000 psi - 4351 psi
    Total Steering Angle 70° 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 rpm - 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 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 Fixed
    Rear Trunnion Trunnion Trunnion
    Oscillation Angle +/-12.5° ±12.5° 13 °
    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) ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards

    Service Refill Capacities
    Fuel Tank 141 gal (US) 141 gal (US) 188 gal (US)
    Cooling System 27 gal (US) - 31.7 gal (US)
    Engine Crankcase 9 gal (US) - -
    Diesel Exhaust Fluid Tank 5.5 gal (US) 6 gal (US) 8.7 gal (US)
    Transmission 20 gal (US) 20 gal (US) 31.7 gal (US)
    Differential - Final Drives - Front 49 gal (US) - 49.1 gal (US)
    Differential - Final Drives - Rear 45 gal (US) - 49.1 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 - -
    Fuel Tank - Short Lift - 127 gal (US) -
    Cooling Systems - 26 gal (US) -
    Crankcase - 9 gal (US) 15.9 gal (US)
    Axle Oil - Differentials and Final Drives - Front - 49 gal (US) -
    Axle Oil - Differentials and Final Drives - Rear - 45 gal (US) -
    Hydraulic System Factory Fill - 87 gal (US) 125.5 gal (US)
    Hydraulic System - Tank Only - 34 gal (US) 63.4 gal (US)
    Coolant (Validated by Test Cell Fill Quantities) - - 33 gal (US)
    Transmission - Validated by Test Cell Fill Quantities - - 29 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) - 4.7-13 m3 (6.2-17 yd3)

    Sustainability
    Recyclability 96% - -

    Sound Performance - Standard
    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) - 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 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
    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 1.9 ft
    Reach - Maximum Lift - 7.1 ft 6.5 ft
    Clearance at Maximum Lift - 10.1 ft 11.9 ft
    B-Pin Height - Maximum Lift - 16.1 ft 18 ft
    Maximum Overall Height - Bucket Raised - 22.4 ft 24.5 ft
    Rear Axle - Centerline to Bumper - 10.3 ft 10.5 ft
    Wheel Base - 12.5 ft 14.9 ft
    Maximum Overall Length - 36.6 ft 39.3 ft
    Front Axle Centerline to Bucket Tip - 13.8 ft 14 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 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
    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 1.9 ft
    Reach - Maximum Lift - 7.4 ft 6.8 ft
    Clearance at Maximum Lift - 11.6 ft 13.3 ft
    B-Pin Height - Maximum Lift - 17.6 ft 19.3 ft
    Maximum Overall Height - Bucket Raised - 23.9 ft 25.8 ft
    Rear Axle - Centerline to Bumper - 10.3 ft 10.5 ft
    Wheel Base - 12.5 ft 14.9 ft
    Maximum Overall Length - 38 ft 40.7 ft
    Front Axle Centerline to Bucket Tip - 15.3 ft 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 -

    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

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

    Sound Performance - Tier 3 / Stage III - Standard
    Operator Sound Pressure Level (ISO 6396:2008) - - 73 dB(A)
    Machine Sound Power Level (ISO 6395:2008) - - 112 dB(A)
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