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988 Wheel Loader
990 Wheel Loader

Engine

Engine Power @ 1,600 rpm - ISO 14396:2002 321 HP - -
Gross Power @ 1,600 rpm - SAE J1995:2014 325 HP - -
Engine Model Cat C9.3B Cat® C18 ™ C27 Cat®
Net Power @ 1,600 rpm - ISO 9249:2007, SAE J1349:2011 303 HP - -
Note (1) Cat engine meets U.S. EPA Tier 4 Final, EU Stage V, Korea Stage V, China Nonroad Stage IV and Japan 2014 emission standards. - -
Note (2) The net power advertised is the power available at the flywheel when the engine is equipped with fan, alternator, air cleaner, and aftertreatment. - -
Net Torque @ 1,200 rpm - ISO 9249:2007, SAE J1349:2011 1255 ft-lb - -
Engine Torque @ 1,200 rpm – ISO 14396:2002 1313 lb/ft - -
Gross Torque @ 1,200 rpm – SAE J1995:2014 1327 lb/ft - -
Note (3) Cat 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 ester)* • 100% renewable diesel, HVO (h - -
Displacement 9.3 L 1105 in³ 1649.5 in³
Net Power - SAE J1349:2011 - 538 HP -
Engine Power - ISO 14396:2002 - 580 HP -
Gross Power - SAE J1995:2014 - 588 HP -
Rated Speed - 1700/min 1,800/min
Peak Power Speed - 1500/rpm -
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 and EU Stage V emission standards or U.S. EPA Tier 2 and EU Stage II equivalent
Bore - 5.7 in 5.4 in
Stroke - 7.2 in 6 in
Peak Torque - 1,200 rpm - 2230 lb/ft 2624 lb/ft
Torque Rise - 58 % 18 %
Engine Power - ISO 14396 - - 752 HP
Gross Power - SAE J1995 - - 766 HP
Net Power - SAE J1349 - Standard Ambient - - 699 HP
Net Power - SAE J1349 - High Ambient - - 648 HP

Weights

Operating Weight 51124 lb - -
Note Weight based on a machine configuration with Bridgestone 29.5R25 VSNT L4 radial tires, full fluids, operator, standard counterweight, ride control cold start, roading fenders, Product Link, open differential axles (front/rear), secondary steering, sound s - -

Bucket Capacities

Bucket Range 2.8-11.9 m³ 3.75-15.5 yd³ - -

Transmission

Forward - 1 4.2 mile/h 4 mile/h 4.5 mile/h
Forward - 2 8.4 mile/h 7.2 mile/h 8.3 mile/h
Forward - 3 15 mile/h 12.7 mile/h 14.2 mile/h
Forward - 4 24.5 mile/h 21.6 mile/h -
Note Maximum travel speed in standard vehicle with empty bucket and standard L3 tires with 849 mm (33 in) roll radius. - Travel speeds based on Michelin 45/65R39 LD D2**L5 tires.
Reverse - 1 4.5 mile/h 4.7 mile/h 4.9 mile/h
Reverse - 2 9.2 mile/h 8.3 mile/h 9.1 mile/h
Reverse - 3 16.5 mile/h 14.4 mile/h 15.5 mile/h
Reverse - 4 24.5 mile/h - -
Transmission Type - Cat planetary powershift Cat planetary power shift
Direct Drive - Forward 1 - Lock-up disabled Lock-up disabled
Direct Drive - Forward 2 - 7.8 mile/h 8.5 mile/h
Direct Drive - Forward 3 - 13.9 mile/h 15.2 mile/h
Direct Drive - Forward 4 - 24.4 mile/h -
Direct Drive - Reverse 1 - 5 mile/h 5.4 mile/h
Direct Drive - Reverse 2 - 8.9 mile/h 9.6 mile/h
Direct Drive - Reverse 3 - 15.8 mile/h 16.4 mile/h

Sound

Note (1) ** For machines in European Union countries and in countries that adopt the EU Directives. - -
Note (2) ***European Union Directive 2000/14/EC as amended by 2005/88/EC. - -
With Cooling Fan Speed at 70% of Maximum Value - Exterior Sound Power Level* 108 - -
With Cooling Fan Speed at 70% of Maximum Value - Operator Sound Pressure Level (ISO 6396:2008) 69 dB(A) - -
With Cooling Fan Speed at Maximum Speed - Exterior Sound Power Level (ISO 6395:2008) 109 dB(A) - -
With Cooling Fan Speed at Maximum Speed - Exterior Sound Pressure Level (SAE J88:2013) 76 - -
With Cooling Fan Speed at Maximum Speed - Operator Sound Pressure Level (ISO 6396:2008) 70 dB(A) - -
With Cooling Fan Speed at Maximum Value - Note Distance of 15 m (49.2 ft), moving forward in second gear ratio. - -

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 1.6 kg (3.5 lb) of refrigerant which has a CO2 equivalent 2.288 metric tonnes (2.522 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. 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).

Operating Specifications

Breakout Force 38999 lb - -
Note (1) For a machine configuration as defined under Weight. - -
Note (2) Full compliance to ISO 14397-1:2007 Sections 1 thru 6, which requires 2% verification between calculations and testing. - -
Static Tipping Load - Full 40° Turn - No Tire Deflection 15981 kg - -
Static Tipping Load - Full 40° Turn - With Tire Deflection 32727 lb - -
Operating Weight - 112574 lb 178517 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) 8.6 m³ – 10.0 m³ (11.25 yd³ – 13.0 yd³)
Cat Truck Match - Standard - 770~772 773-775
Cat Truck Match - High Lift - 773~775 775-777
Rated Payload - Standard - - 17.5 ton (US)
Rated Payload - High Lift - - 17.5 ton (US)

Service Refill Capacities

Cooling System 17.4 gal (US) 31.7 gal (US) 54.9 gal (US)
Crankcase 6.1 gal (US) 15.9 gal (US) -
DEF Tank 6.9 gal (US) - -
Differential - Final Drives - Front 15.1 gal (US) 49.1 gal (US) 71.6 gal (US)
Differential - Final Drives - Rear 15.1 gal (US) 49.1 gal (US) 68.9 gal (US)
Fuel Tank 80.1 gal (US) 188 gal (US) 294.3 gal (US)
Hydraulic Tank 30.1 gal (US) - -
Transmission 15.5 gal (US) 31.7 gal (US) 29.1 gal (US)
Coolant (Validated by Test Cell Fill Quantities) - 33 gal (US) -
Diesel Exhaust Fluid Tank - 8.7 gal (US) -
Transmission - Validated by Test Cell Fill Quantities - 29 gal (US) -
Hydraulic System Factory Fill - 125.5 gal (US) 210 gal (US)
Hydraulic System - Tank Only - 63.4 gal (US) -
Engine Crankcase - - 20 gal (US)
Hydraulic Tank - Implement and Hydraulic Fan - - 68.9 gal (US)
Hydraulic Tank - Steering and Braking - - 34.9 gal (US)
Note - - 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

Implement System - Maximum Operating Pressure 4496 psi - -
Implement System - Maximum Pump Output at 2,250 rpm 99 gal/min - -
Hydraulic Cycle Time - Total 10.1 seconds - -

Dimensions

Note All dimensions are approximate and based on machine equipped with 5.4 m3 (7.1 yd3) general purpose bucket with BOCE and Bridgestone 29.5R25 VSNT L4 radial tires. - -

Dimensions - High Lift

Centerline of Rear Axle to Edge of Counterweight 8.1 ft - -
Centerline of Rear Axle to Hitch 5.1 ft - -
Ground Clearance 1.4 ft - -
Height - Top of Exhaust Pipe 11.8 ft - -
Height - Top of Hood 9.5 ft - -
Height - Top of ROPS 11.1 ft - -
Hinge Pin Height at Carry 2.6 ft - -
Hinge Pin Height at Maximum Lift 15.9 ft - -
Lift Arm Clearance at Maximum Lift 13.8 ft - -
Overall Length - Without Bucket 26.6 ft - -
Tread Width 7.3 ft - -
Wheel Base 11.8 ft - -
Rack Back - Carry Height 49 degrees - -
Rack Back - Maximum Lift 71 degrees - -
Width over Tires (Loaded) 9.11 ft - -
Rack Back at Ground 37 degrees - -

Dimensions - Standard Lift

Centerline of Rear Axle to Edge of Counterweight 7.7 ft - -
Centerline of Rear Axle to Hitch 5.1 ft - -
Ground Clearance 424 mm - -
Height - Top of Exhaust Pipe 3531 mm - -
Height - Top of Hood 2850 mm - -
Height - Top of ROPS 3593 mm - -
Hinge Pin Height at Carry 2 ft - -
Hinge Pin Height at Maximum Lift 4245 mm - -
Lift Arm Clearance at Maximum Lift 3687 mm - -
Overall Length - Without Bucket 7399 mm - -
Tread Width 7.3 ft - -
Wheel Base 3550 mm - -
Rack Back - Carry Height 50 degrees - -
Width over Tires (Loaded) 9.11 ft - -
Rack Back - Maximum Lift 62 degrees - -
Rack Back at Ground 39 degrees - -

Hydraulic System - Lift/Tilt

Lift/Tilt System - Circuit - EH- Positive Flow Control, Flow Sharing Positive flow control
Lift/Tilt System - Variable displacement piston Variable displacement piston
Maximum Flow at 1,400-1,860 rpm - 153 gal/min -
Relief Valve Setting - Lift/Tilt - 4757 psi 4786 psi
Cylinders, Double Acting - Lift, Bore and Stroke - 210 mm × 1050 mm (8.7 in × 41.3 in) 235 mm × 1287 mm (9.3 in × 50.7 in)
Cylinders, Double Acting - Tilt, Bore and Stroke - 269 mm × 685 mm (8.7 in × 27 in) 292.1 mm × 820 mm (11.5 in × 32.3 in)
Pilot System - Variable displacement piston Open loop and pressure reducing
Relief Valve Setting - Main - 551 psi 507 psi
Maximum Flow at 1,800 rpm (1) - - 240 gal/min

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 Pilot, load sensing
Steering System - Pump - Piston, variable displacement Piston, variable displacement
Maximum Flow - 71.3 gal/min -
Relief Valve Setting - Steering - 4351 psi 5004 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

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 - 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 -
Ground to Top of Exhaust Stacks - 14.8 ft -
Ground to Top of Hood - 10.9 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 -
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 -

Dimensions (Approximate) - High Lift Linkage

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 -
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 -
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 -

Buckets

Bucket Capacities - 4.7-13 m3 (6.2-17 yd3) 8.6 m³ – 10.0 m³ (11.25 yd³ – 13.0 yd³)

Hydraulic Cycle Times

Rack Back - - 4.3 s
Raise - - 8.2 s
Dump - - 2.9 s
Lower - - 3.7 s
Lower Float Down - - 3.6 s
Total Hydraulic Cycle Time - Empty Bucket - - 13.8 s

Sound Performance - Standard

Operator Sound Level (ISO 6396:2008) - - 65.5 dB(A)
Machine Sound Level (ISO 6395:2008) - - 115 dB(A)

Sound Performance - Suppression

Operator Sound Level (ISO 6396:2008) - - 65.5 dB(A)
Machine Sound Level (ISO 6395:2008) - - 113 dB(A)
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