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988 XE Wheel Loader
990 Wheel Loader

Engine

Engine Power - ISO 14396:2002 580 hp 752 hp -
Engine Model Cat® C18 Cat® C27 -
Rated Speed 1,700 rpm 1800 r/min -
Peak Power Speed 1,500 rpm - -
Gross Power - SAE J1995:2014 588 hp 766 hp -
Net Power - SAE J1349:2011 538 hp - -
Bore 5.7 in 5.4 in -
Stroke 7.2 in 6 in -
Displacement 1105 in³ 1649.5 in³ -
Peak Torque - 1,200 rpm 2230 lbf·ft 2624 lb/ft -
Torque Rise 58% 18 % -
Note (1) Two engine emissions options are available: 1. Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 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. - -
Emissions - Option 2 - Emits equivalent to U.S. EPA Tier 2 -
Net Power - SAE J1349:2011 - Standard Ambient - 699 hp -
Net Power - SAE J1349:2011 - High Ambient - 648 hp -
Note - Net power advertised is the power available at the flywheel when the engine is equipped with fan at minimum speed, air intake sytstem, exhaust system, and alternator. -

Operating Specifications

Operating Weight 116362 lb - -
Bucket Capacity Range 4.7-13 m3 (6.2-17 yd3) 8.6 m³ – 10.0 m³ (11.25 yd³ – 13.0 yd³) -
Rated Payload - Quarry Face 12.5 t - -
Rated Payload - Loose Material 16 t - -
Operating Weight - Standard - 178517 lb -
Rated Payload - Standard - 17.5 ton (US) -
Rated Payload - High Lift - 17.5 ton (US) -
Cat Truck Match - Standard - 773-775 -
Cat Truck Match - High Lift - 775-777 -

Transmission

Transmission Type Cat switched reluctance electric drive Cat planetary power shift -
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 - -
Forward - 1 - 4.6 mile/h -
Forward - 2 - 8.2 mile/h -
Forward - 3 - 14.5 mile/h -
Reverse - 1 - 5.1 mile/h -
Reverse - 2 - 9.1 mile/h -
Reverse - 3 - 16 mile/h -
Direct Drive - Forward 1 - Lock-up disabled -
Direct Drive - Forward 2 - 8.2 mile/h -
Direct Drive - Forward 3 - 14.5 mile/h -
Direct Drive - Reverse 1 - 5.1 mile/h -
Direct Drive - Reverse 2 - 9.1 mile/h -
Direct Drive - Reverse 3 - 16 mile/h -
Note - Travel speeds based on Michelin 45/65R39 LD D2**L5 tires. -

Hydraulic System - Lift/Tilt

Lift/Tilt System - Circuit EH-Positive Flow Control, Flow Sharing Positive flow control -
Lift/Tilt System - Pump Variable displacement piston - -
Maximum Flow at 1,400-1,600 rpm 153 gal/min - -
Relief Valve Setting - Lift/Tilt 4757 psi 4786 psi -
Lift Cylinder - Bore 8.7 in - -
Lift Cylinder - Stroke 41.3 in - -
Tilt Cylinder - Bore 8.7 in - -
Tilt Cylinder - Stroke 27 in - -
Lift/Tilt System - Variable displacement piston -
Maximum Flow at 1,800 rpm - 240 gal/min -
Cylinders, Double Acting - Lift, Bore and Stroke - 235 mm × 1287 mm (9.3 in × 50.7 in) -
Cylinders, Double Acting - Tilt, Bore and Stroke - 292.1 mm × 820 mm (11.5 in × 32.3 in) -
Pilot System - Open loop and pressure reducing -
Pilot Relief Setting - 507 psi -

Hydraulic Cycle Times

Rack Back 4.5 s 4.3 s -
Raise 8 s 8.6 s -
Dump 2.2 s 2.9 s -
Lower Float Down 3.5 s 3.7 s -
Total Hydraulic Cycle Time 18.2 s - -
Lower - 3.7 s -
Total Hydraulic Cycle Time - Empty Bucket - 13.8 s -

Hydraulic System - Steering

Steering System - Circuit Pilot, load sensing Pilot, load sensing -
Steering System - Pump Piston, variable displacement Piston, variable displacement -
Maximum Flow at 1,400-1,600 rpm 71.3 gal/min - -
Steering Cut Off Pressure 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 - 96.2 gal/min -
Relief Valve Setting - Steering - 5004 psi -

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 con • 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 c -

Axles

Front Fixed Fixed -
Rear Trunnion Trunnion -
Oscillation Angle 13° 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 - -

Sound Performance - Tier 4 Final / Stage V

Operator Sound Pressure Level (ISO 6396:2008) 72 dB(A) 72 dB(A) -
Machine Sound Power Level (ISO 6395:2008) 109 dB(A) 116 dB(A) -
Operator Sound Pressure Level (ISO 6396:2008)* 72 dB(A) 72 dB(A) -
Machine Sound Power Level (ISO 6395:2008)** 109 dB(A) - -
Note (1) * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives” *Sound suppression equipped -
Note (2) ** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701 The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. -
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. The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent 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. 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 (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. - -
Machine Sound Power Level (ISO 6395:2008)* - 114 dB(A) -

Sound Performance - Tier 3 / Stage IIIA

Operator Sound Pressure Level (ISO 6396:2008) 72 dB(A) - -
Machine Sound Power Level (ISO 6395:2008) 110 dB(A) - -
Operator Sound Pressure Level (ISO 6396:2008)* 72 dB(A) - -
Machine Sound Power Level (ISO 6395:2008)** 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. - -

Service Refill Capacities

Fuel Tank 147 gal (US) 281 gal (US) -
Cooling System - Jacket Water 30 gal (US) - -
Cooling Systems - Power Train 8 gal (US) - -
Engine Crankcase 16 gal (US) 20 gal (US) -
Diesel Exhaust Fluid Tank 8.7 gal (US) - -
Transmission 16 gal (US) 29.1 gal (US) -
Differential - Final Drives - Front 49 gal (US) 71.6 gal (US) -
Differential - Final Drives - Rear 49 gal (US) 68.9 gal (US) -
Hydraulic System - Implement/Steering 126 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) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: • 20% Cat U.S. EPA Tier 4 Final/EU Stage V 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 este -
Cooling System - 54.9 gal (US) -
Hydraulic System Factory Fill - 210 gal (US) -
Hydraulic Tank - Implement and Hydraulic Fan - 68.9 gal (US) -
Hydraulic Tank - Steering and Braking - 34.9 gal (US) -

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 Specifications 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 (Approximate) - High 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 15.3 ft - -
Wheel Base 14.9 ft - -
Maximum Overall Length 40.7 ft - -
Ground to Lower Hitch Clearance 1.9 ft - -
Ground to Center of Axles 3.2 ft - -
Clearance at Maximum Lift 13.3 ft - -
B-Pin Height - Maximum Lift 19.3 ft - -
Maximum Overall Height - Bucket Raised 25.8 ft - -
Reach - Maximum Lift 6.8 ft - -
Note Specifications 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 ° - -

Sound Performance - Tier 2

Operator Sound Pressure Level (ISO 6396:2008) - 72 dB(A) -
Machine Sound Power Level (ISO 6395:2008) - 116 dB(A) -
Operator Sound Pressure Level (ISO 6396:2008)* - 72 dB(A) -
Machine Sound Power Level (ISO 6395:2008)* - 114 dB(A) -
Note (1) - *Sound suppression equipped -
Note (2) - The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. -
Note (3) - The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. -
Note (4) - 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. -

Dimensions (Approximate) - Standard Lift Linkage

Ground to Top of ROPS - 17.2 ft -
Ground to Top of Exhaust Stacks - 16.6 ft -
Ground to Top of Hood - 12.7 ft -
Ground to Bumper Clearance - 3.5 ft -
Rear Axle - Centerline to Bumper - 12.5 ft -
Front Axle Centerline to Bucket Tip - 15.4 ft -
Wheel Base - 15.1 ft -
Maximum Overall Length - 42.9 ft -
Ground to Lower Hitch Clearance - 2 ft -
Ground to Center of Front Axle - 4.2 ft -
Clearance at Maximum Lift - 7.2 ft -
Rack Back Angle at Ground Level - 40.4° -
Rack Back Angle at Carry - 48.8° -
B-Pin Height - Maximum Lift - 19.7 ft -
Maximum Overall Height - Bucket Raised - 27.2 ft -
Rack Angle at Maximum Lift - 63.7° -
Dump Angle at Maximum Lift - 45° -
Reach - Maximum Lift - 7.2 ft -
Note - Specifications are calculated with 9.0 m3 (11.8 yd3) rock bucket and Bridgestone 45/65R39 VSDL One Star tires. -

Dimensions (Approximate) - High Lift Linkage

Ground to Top of ROPS - 17.2 ft -
Ground to Top of Exhaust Stacks - 16.6 ft -
Ground to Top of Hood - 12.7 ft -
Ground to Bumper Clearance - 3.5 ft -
Rear Axle - Centerline to Bumper - 12.5 ft -
Front Axle Centerline to Bucket Tip - 17.8 ft -
Wheel Base - 15.1 ft -
Maximum Overall Length - 45.3 ft -
Ground to Lower Hitch Clearance - 2 ft -
Ground to Center of Front Axle - 4.2 ft -
Clearance at Maximum Lift - 14.8 ft -
Rack Back Angle at Ground Level - 39.9° -
Rack Back Angle at Carry - 49.3° -
B-Pin Height - Maximum Lift - 21.2 ft -
Maximum Overall Height - Bucket Raised - 28.7 ft -
Rack Angle at Maximum Lift - 60.6° -
Dump Angle at Maximum Lift - 51° -
Reach - Maximum Lift - 8.5 ft -
Note - Specifications are calculated with 9.0 m3 (11.8 yd3) rock bucket and Bridgestone 45/65R39 VSDL One Star tires. -
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