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    988 Wheel Loader
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    986 Wheel Loader
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    Engine
    Net Power - SAE J1349:2011 538 hp 373 hp -
    Engine Power - ISO 14396:2002 580 hp - -
    Gross Power - SAE J1995:2014 588 hp - -
    Engine Model Cat® C18 ™ C15 Cat® -
    Rated Speed 1700/min 2000 -
    Peak Power Speed 1500/rpm 1600 -
    Emissions 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 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 5.7 in 5.4 in -
    Stroke 7.2 in 6.75 in -
    Displacement 1105 in³ 927 in² -
    Peak Torque - 1,200 rpm 2230 lb/ft - -
    Torque Rise 58 % 16% -
    Peak Power Speed - Gross - SAE J1995 - 456 hp -
    Engine Power - ISO 14396: 2002 - 449 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 -
    Peak Torque - 1,200 rpm - SAE J1995 - 1778 lb/ft -

    Operating Specifications
    Operating Weight 112574 lb - -
    Rated Payload - Quarry Face 12.5 t - -
    Rated Payload - Loose Material 16 t - -
    Bucket Capacity Range 4.7-13 m3 (6.2-17 yd3) 5-10,3 m³ (6,5-13,5 yd.³) -
    Cat Truck Match - Standard 770～772 770/735/740/745 -
    Cat Truck Match - High Lift 773～775 772/773 -
    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 powershift Cat planetary power shift -
    Forward - 1 4 mile/h 5 mile/h -
    Forward - 2 7.2 mile/h 8 mile/h -
    Forward - 3 12.7 mile/h - -
    Forward - 4 21.6 mile/h - -
    Reverse - 1 4.7 mile/h 5 mile/h -
    Reverse - 2 8.3 mile/h 8 mile/h -
    Reverse - 3 14.4 mile/h - -
    Direct Drive - Forward 1 Lock-up disabled - -
    Direct Drive - Forward 2 7.8 mile/h 8 mile/h -
    Direct Drive - Forward 3 13.9 mile/h 14 mile/h -
    Direct Drive - Forward 4 24.4 mile/h 24 mile/h -
    Direct Drive - Reverse 1 5 mile/h - -
    Direct Drive - Reverse 2 8.9 mile/h 9 mile/h -
    Direct Drive - Reverse 3 15.8 mile/h 16 mile/h -
    Direct Drive - Reverse 4 - 25.4 mile/h -

    Hydraulic System - Lift/Tilt
    Lift/Tilt System - Circuit EH- Positive Flow Control, Flow Sharing Load Sense -
    Lift/Tilt System Variable displacement piston - -
    Maximum Flow at 1,400-1,860 rpm 153 gal/min - -
    Relief Valve Setting - Lift/Tilt 4757 psi 4050 psi -
    Cylinders, Double Acting - Lift, Bore and Stroke 210 mm × 1050 mm (8.7 in × 41.3 in) - -
    Cylinders, Double Acting - Tilt, Bore and Stroke 269 mm × 685 mm (8.7 in × 27 in) - -
    Pilot System Variable displacement piston - -
    Relief Valve Setting - Main 551 psi - -
    Lift/Tilt System - Pump - 2 × 110 cc variable displacement -
    Maximum Flow at 2,165 rpm - 123 gal/min -
    Lift Cylinder - Bore - 7.5 in -
    Lift Cylinder - Stroke - 45 in -
    Tilt Cylinder - Bore - 6.7 in -
    Tilt Cylinder - Stroke - 28.4 in -

    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 - -

    Hydraulic System - Steering
    Steering System - Circuit Pilot, load sensing Load Sense -
    Steering System - Pump Piston, variable displacement Piston, variable displacement -
    Maximum Flow 71.3 gal/min - -
    Relief Valve Setting - Steering 4351 psi - -
    Total Steering Angle 86 ° 70° -
    Steering Cycle Times - High Idle 3.4 s - -
    Steering Cycle Times - Low Idle 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 or R1234yf. See the label or instruction manual for identification of the gas. - If equipped with R134a (Global Warming Potential = 1430), the system co -

    Axles
    Front Fixed Fixed -
    Rear Trunnion Trunnion -
    Oscillation Angle 13 ° ±12.5° -
    Oscillation Angle - Chain Arrangement - ±8.5° -

    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 (ROPS) and ISO 3449:2005 Level II (FOPS) -

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

    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) - -

    Dimensions (Approximate) - Standard Lift Linkage
    Ground to Top of ROPS 13.8 ft 13.5 ft -
    Ground to Top of Exhaust Stacks 14.8 ft 13.3 ft -
    Ground to Top of Hood 10.9 ft 10.7 ft -
    Rear Axle - Centerline to Bumper 10.5 ft 10.3 ft -
    Front Axle Centerline to Bucket Tip 14 ft 13.8 ft -
    Wheel Base 14.9 ft 12.5 ft -
    Maximum Overall Length 39.3 ft 36.6 ft -
    Ground to Lower Hitch Clearance 1.9 ft 1.5 ft -
    Clearance at Maximum Lift 11.9 ft 10.1 ft -
    B-Pin Height - Maximum Lift 18 ft 16.1 ft -
    Maximum Overall Height - Bucket Raised 24.5 ft 22.4 ft -
    Reach - Maximum Lift 6.5 ft 7.1 ft -
    Ground to Center of Front Axle - 3.2 ft -
    Ground to Fuel Tank Clearance - 2.3 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 13.8 ft 13.5 ft -
    Ground to Top of Exhaust Stacks 14.8 ft 13.3 ft -
    Ground to Top of Hood 10.9 ft 10.7 ft -
    Rear Axle - Centerline to Bumper 10.5 ft 10.3 ft -
    Front Axle Centerline to Bucket Tip 15.3 ft 15.3 ft -
    Wheel Base 14.9 ft 12.5 ft -
    Maximum Overall Length 40.7 ft 38 ft -
    Ground to Lower Hitch Clearance 1.9 ft 1.5 ft -
    Clearance at Maximum Lift 13.3 ft 11.6 ft -
    B-Pin Height - Maximum Lift 19.3 ft 17.6 ft -
    Maximum Overall Height - Bucket Raised 25.8 ft 23.9 ft -
    Reach - Maximum Lift 6.8 ft 7.4 ft -
    Ground to Center of Front Axle - 3.2 ft -
    Ground to Fuel Tank Clearance - 2.3 ft -
    Note -
    • All dimensions are approximate.
    • Specs are calculated with a 6.1 m³ (8.0 yd³) rock bucket.
    		 -

    Buckets
    Bucket Capacities 4.7-13 m3 (6.2-17 yd3) - -

    Hydraulic Cycle Times
    Rack Back - 4.5 s -
    Raise - 9 s -
    Dump - 3.5 s -
    Lower - 5.2 s -
    Lower Float Down - 4.3 s -
    Total Hydraulic Cycle Time - 21.3 s -

    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) - 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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