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988 Wheel Loader

Engine

Net Power - SAE J1349:2011 538 HP - -
Engine Power - ISO 14396:2002 580 HP - -
Gross Power - SAE J1995:2014 588 HP - -
Engine Model Cat® C18 ™ Cat C13 -
Rated Speed 1700/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 - -
Bore 5.7 in - -
Stroke 7.2 in - -
Displacement 1105 in³ 12.5 L -
Peak Torque - 1,200 rpm 2230 lb/ft - -
Torque Rise 58 % - -
Net Power @ 1,700 rpm – ISO 9249:2007, SAE J1349:2011 - 393 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. -
Gross Torque @ 1,200 rpm – SAE J1995:2014 - 1627 lb/ft -
Engine Torque @ 1,200 rpm – ISO 14396:2002 - 1612 lb/ft -
Gross Power @ 1,700 rpm – SAE J1995:2014 - 425 HP -
Net Torque @ 1,100 rpm – ISO 9249:2007, SAE J1349:2011 - 1539 lb/ft -
Engine Power @ 1,700 rpm – ISO 14396:2002 - 429 HP -
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 -

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) - -
Cat Truck Match - Standard 770~772 - -
Cat Truck Match - High Lift 773~775 - -
Breakout Force - 51008 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 - 20965 kg -
Static Tipping Load - Full 40° Turn - With Tire Deflection - 43432 lb -

Transmission

Transmission Type Cat planetary powershift - -
Forward - 1 4 mile/h 4.3 mile/h -
Forward - 2 7.2 mile/h 8.3 mile/h -
Forward - 3 12.7 mile/h 14.6 mile/h -
Forward - 4 21.6 mile/h 24.5 mile/h -
Reverse - 1 4.7 mile/h 4.8 mile/h -
Reverse - 2 8.3 mile/h 9.4 mile/h -
Reverse - 3 14.4 mile/h 16.7 mile/h -
Direct Drive - Forward 1 Lock-up disabled - -
Direct Drive - Forward 2 7.8 mile/h - -
Direct Drive - Forward 3 13.9 mile/h - -
Direct Drive - Forward 4 24.4 mile/h - -
Direct Drive - Reverse 1 5 mile/h - -
Direct Drive - Reverse 2 8.9 mile/h - -
Direct Drive - Reverse 3 15.8 mile/h - -
Note - Maximum travel speed in standard vehicle with empty bucket and standard L4 tires with 935 mm (37 in) roll radius. -
Reverse - 4 - 24.5 mile/h -

Hydraulic System - Lift/Tilt

Lift/Tilt System - Circuit EH- Positive Flow Control, Flow Sharing - -
Lift/Tilt System Variable displacement piston - -
Maximum Flow at 1,400-1,860 rpm 153 gal/min - -
Relief Valve Setting - Lift/Tilt 4757 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 - -

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 - -
Steering System - Pump Piston, variable displacement - -
Maximum Flow 71.3 gal/min - -
Relief Valve Setting - Steering 4351 psi - -
Total Steering Angle 86 ° - -
Steering Cycle Times - High Idle 3.4 s - -
Steering Cycle Times - Low Idle 5.6 s - -

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 1.9 kg (4.2 lb) of refrigerant which has a CO2 equivalent 2.717 metric tonnes (2.995 tons). -

Axles

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

Brakes

Brakes ISO 3450:2011 - -

Operator's Cab

ROPS/FOPS ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards - -

Service Refill Capacities

Fuel Tank 188 gal (US) 112.5 gal (US) -
Cooling System 31.7 gal (US) 13.7 gal (US) -
Coolant (Validated by Test Cell Fill Quantities) 33 gal (US) - -
Crankcase 15.9 gal (US) 9.8 gal (US) -
Diesel Exhaust Fluid Tank 8.7 gal (US) - -
Transmission 31.7 gal (US) 20.3 gal (US) -
Transmission - Validated by Test Cell Fill Quantities 29 gal (US) - -
Differential - Final Drives - Front 49.1 gal (US) 22.2 gal (US) -
Differential - Final Drives - Rear 49.1 gal (US) 22.4 gal (US) -
Hydraulic System Factory Fill 125.5 gal (US) - -
Hydraulic System - Tank Only 63.4 gal (US) - -
DEF Tank - 5.5 gal (US) -
Hydraulic Tank - 40.4 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 - -
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) - -

Weights

Operating Weight - 66877 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 - 4.0-14.5 m³ 5.25-19 yd³ -

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* - 109 -
With Cooling Fan Speed at 70% of Maximum Value - Operator Sound Pressure Level (ISO 6396:2008) - 72 dB(A) -
With Cooling Fan Speed at Maximum Speed - Exterior Sound Power Level (ISO 6395:2008) - 112 dB(A) -
With Cooling Fan Speed at Maximum Speed - Exterior Sound Pressure Level (SAE J88:2013) - 78 -
With Cooling Fan Speed at Maximum Speed - Operator Sound Pressure Level (ISO 6396:2008) - 72 dB(A) -

Hydraulic System

Implement System - Maximum Operating Pressure - 4975 psi -
Implement System - Maximum Pump Output at 2,250 rpm - 119 gal/min -

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 - 8.9 ft -
Centerline of Rear Axle to Hitch - 6.3 ft -
Ground Clearance - 1.5 ft -
Height - Top of Exhaust Pipe - 12.5 ft -
Height - Top of Hood - 10.1 ft -
Height - Top of ROPS - 12.7 ft -
Hinge Pin Height at Carry - 2.2 ft -
Hinge Pin Height at Maximum Lift - 15.7 ft -
Lift Arm Clearance at Maximum Lift - 13.6 ft -
Overall Length - Without Bucket - 27.5 ft -
Tread Width - 8 ft -
Wheel Base - 12.6 ft -
Rack Back at Ground - 40 degrees -
Width over Tires (Loaded) - 10.9 ft -
Rack Back - Carry Height - 50 degrees -
Rack Back - Maximum Lift - 61 degrees -

Dimensions - Standard Lift

Centerline of Rear Axle to Hitch - 6.3 ft -
Ground Clearance - 456 mm -
Height - Top of Exhaust Pipe - 3764 mm -
Height - Top of Hood - 3064 mm -
Height - Top of ROPS - 3829 mm -
Hinge Pin Height at Carry - 2.2 ft -
Hinge Pin Height at Maximum Lift - 4554 mm -
Lift Arm Clearance at Maximum Lift - 3881 mm -
Overall Length - Without Bucket - 8155 mm -
Tread Width - 8 ft -
Wheel Base - 3800 mm -
Rack Back at Ground - 40 degrees -
Centerline of Rear Axle to Edge of Counterweight - 2661 mm -
Width over Tires (Loaded) - 10.9 ft -
Rack Back - Carry Height - 50 degrees -
Rack Back - Maximum Lift - 61 degrees -
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