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    988 GC Wheel Loader
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    988 Wheel Loader
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    903D Compact Wheel Loader
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    Operating Specifications
    Operating Weight 112426 lb 112574 lb -
    Bucket Capacity Range 6.4-7.6 m3 (8.3-10 yd3) 4.7-13 m3 (6.2-17 yd3) -
    Rated Payload - Quarry Face 12.5 ton (US) 12.5 t -
    Cat Truck Match - High Lift 772/773/775 773 - 775 -
    Rated Payload - Loose Material - 16 t -
    Cat Truck Match - Standard - 770 - 772 -

    Engine
    Engine Model Cat® C15 Cat® C18 Cat C2.4*
    Rated Speed 2000 rpm 1700/rpm -
    Peak Power Speed 1600 rpm 1500/rpm -
    Gross Power - SAE J1995:2014 456 hp 588 hp -
    Net Power - SAE J1349:2011 448 hp 538 hp -
    Bore 5.4 in 5.7 in 3.4 in
    Stroke 6.75 in 7.2 in 4 in
    Displacement 927 in³ 1105 in³ 147 in²
    Peak Torque (1,200 rpm) - SAE J1995:2014 1778 lbf·ft - -
    Torque Rise 16% 58 % -
    Note (1) Two engine emission options are available: 1. Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan emission standards. 2. Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA. Three engine emission 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. 3. Meets China Nonroad Stage IV emissio -
    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. 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. -
    Note (3) Net power at the flywheel when the fan is at maximum speed is 304 kW / 408 hp per SAE reference conditions. - -
    Engine Power - ISO 14396:2002 - 580 hp -
    Peak Torque - 1,200 rpm - 2104 lbf·ft -
    Maximum Gross Power - - 42 hp
    Gross Power - - 42 hp
    Net Power - 2,200 rpm - SAE J1349 R-ing - - 40 hp
    Net Power - 2,200 rpm - ISO 9249 R-ing - - 40 hp
    Note - - *Engine meets U.S. EPA Tier 4 Final emission standards.

    Transmission
    Transmission Type Cat planetary power shift Cat planetary powershift -
    Forward - 1 5 mile/h 4 mile/h -
    Forward - 2 8 mile/h 7.2 mile/h -
    Reverse - 1 5 mile/h 4.7 mile/h -
    Reverse - 2 8 mile/h 8.3 mile/h -
    Direct Drive - Forward 1 Lock-up disabled Lock-up disabled -
    Direct Drive - Forward 2 8 mile/h 7.8 mile/h -
    Direct Drive - Forward 3 14 mile/h 13.9 mile/h -
    Direct Drive - Forward 4 24 mile/h 24.4 mile/h -
    Direct Drive - Reverse 1 Lock-up disabled 5 mile/h -
    Direct Drive - Reverse 2 9 mile/h 8.9 mile/h -
    Direct Drive - Reverse 3 16 mile/h 15.8 mile/h -
    Direct Drive - Reverse 4 25.4 mile/h - -
    Note Travel speeds based on 35/65-R33 tires. - -
    Forward - 3 - 12.7 mile/h -
    Forward - 4 - 21.6 mile/h -
    Reverse - 3 - 14.4 mile/h -
    Travel Speed - - 12.4 mile/h

    Hydraulic System - Lift/Tilt
    Lift/Tilt System - Circuit EH - Load Sense EH- Positive Flow Control, Flow Sharing -
    Lift/Tilt System - Pump Variable displacement piston Variable displacement piston -
    Maximum Flow at 2,165 rpm 159 gpm - -
    Relief Valve Setting - Lift/Tilt 4598 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) 266 mm × 685 mm (8.7 in × 27 in) -
    Pilot System Variable displacement piston Variable displacement piston -
    Relief Valve Setting 500 psi - -
    Maximum Flow at 1,400-1,860 rpm - 153 gpm -
    Relief Valve Setting - Main - 551 psi -

    Hydraulic Cycle Times
    Rack Back 3.8 s - -
    Raise 7.5 s - -
    Dump 3 s - -
    Lower Float Down 4.6 s - -
    Total Hydraulic Cycle Time - Empty Bucket 18.9 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 2,165 rpm 52 gpm - -
    Relief Valve Setting - Steering 4000 psi 4351 psi -
    Total Steering Angle 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 1,400-1,600 rpm - 71.3 gpm -

    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 co • 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 -

    Axles
    Front Fixed Fixed -
    Rear Trunnion Trunnion -
    Oscillation Angle +/-12.5° 13 ° -

    Brakes
    Brakes ISO 3450:2011 ISO 3450:2011 -

    Operator's Cab
    ROPS/FOPS Rollover Protective Structure/Falling Objects Protective Structure (ROPS/FOPS) meet ISO 3471:2008 and ISO 3449:2005 Level II standards 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) 73 dB(A) 73 dB(A) -
    Machine Sound Power Level (ISO 6395:2008) 113 dB(A) 111 dB(A) -
    Operator Sound Pressure Level (ISO 6396:2008)* 72 dB(A) 72 dB(A) -
    Machine Sound Power Level (ISO 6395:2008)** 110 dB(A) 109 dB(A) -
    Note (1) * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives.” * 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. ** 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. 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. 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. 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. -

    Sound Performance - Tier 3 / Stage IIIA
    Operator Sound Pressure Level (ISO 6396:2008) 74 dB(A) 73 dB(A) -
    Machine Sound Power Level (ISO 6395:2008) 113 dB(A) 112 dB(A) -
    Operator Sound Pressure Level (ISO 6396:2008)* 73 dB(A) 72 dB(A) -
    Machine Sound Power Level (ISO 6395:2008)** 110 dB(A) 110 dB(A) -
    Note (1) * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives.” * 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. ** 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. 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. 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. 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 141 gal (US) 188 gal (US) 11.4 gal (US)
    Cooling System 27 gal (US) 31.7 gal (US) 3 gal (US)
    Engine Crankcase 9 gal (US) - -
    Diesel Exhaust Fluid Tank 5.5 gal (US) - -
    Transmission 20 gal (US) 24.3 gal (US) -
    Differential - Final Drives - Front 49 gal (US) 49.1 gal (US) -
    Differential - Final Drives - Rear 45 gal (US) 49.1 gal (US) -
    Hydraulic System Factory Fill 94 gal (US) 125.5 gal (US) -
    Note Cat 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% biodiesel FAME (fatty acid methyl ester) *** - 10 • All non-road Tier 4 Final/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 ester -
    Coolant (Validated by Test Cell Fill Quantities) - 33 gal (US) -
    Crankcase - 15.9 gal (US) -
    Diesel Exhaust Fluid Tank (For Tier 4 Final/Stage V Only) - 8.7 gal (US) -
    Transmission - Validated by Test Cell Fill Quantities - 29 gal (US) -
    Hydraulic System - Tank Only - 63.4 gal (US) -
    Hydraulic System - - 6.3 gal (US)
    Engine Oil - - 2.4 gal (US)

    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 - -
    Ground to Fuel Tank Clearance 2.2 ft - -
    Rear Axle - Centerline to Bumper 10.3 ft - -
    Front Axle Centerline to Bucket Tip 16.7 ft - -
    Wheel Base 12.5 ft - 6.42 ft
    Maximum Overall Length 39.5 ft - -
    Ground to Lower Hitch Clearance 1.5 ft - -
    Ground to Center of Front Axle 3.2 ft - -
    Clearance at Maximum Lift (45° Dump) 12 ft - -
    B-Pin Height - Maximum Lift 18.7 ft - -
    Maximum Overall Height - Bucket Raised 25 ft - -
    Reach at Maximum Lift (45° Dump) 7.7 ft - -
    Note Specifications are calculated with 6.9 m3 (9.0 yd3 ) rock bucket equipped with Michelin XLDD1 35/65 R33 tires. - -
    Cab Height - - 8.25 ft
    Ground Clearance - - 10 in
    Overall Length - With Bucket* - - 16.17 ft
    Reach at Maximum Dump Height* - - 2.42 ft
    Dig Depth - - 8 in
    Maximum Dump Height* - - 8 ft
    Load Over Height - - 9.67 ft
    Hinge Pin at Maximum Height - - 10.58 ft
    Departure Angle - Degrees - - 30°
    Overall Length - With Forks - - 17.58 ft
    Reach - Ground Level - - 3.25 ft
    Maximum Reach - - 4.92 ft
    Fork Depth Above Ground - - 2 in
    Fork Height at Maximum Reach - - 4.67 ft
    Maximum Fork Height - - 10.33 ft
    Fork Reach at Maximum Height - - 2 ft
    Turning Radius - Over Bucket* - - 13.42 ft
    Turning Radius - Inside Tire** - - 5.92 ft
    Width - Over Bucket* - - 5.83 ft
    Tire Gauge - - 4.33 ft
    Machine Width** - - 5.58 ft
    Articulation Angle - - 40°
    Steering Angle - - 80°
    Dump Angle at Maximum Height - - 40°
    Note (1) - - *Vary with bucket size.
    Note (2) - - **Vary with tire size.
    Note (3) - - Dimensions listed are based on the machine configured with cab with air conditioning, remote quick coupler, general purpose bucket or 1067 mm (42 in) forks, 75 kg (165 lb) operator, 33 × 15.5-16.5, 12 PR tires, without ride control, without precleaner.

    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 -

    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 -

    Weights
    Operating Weight - - 9414 lb

    Buckets
    Bucket Capacities - - 0.6-1.0 m3 (0.8-1.3 yd3)
    Bucket Capacities - General Purpose - - 0.6 m3 (0.8 yd3)
    Bucket Capacities - Light Material - - 1.0 m3 (1.3 yd3)

    Hydraulic System
    Main Relief - - 3481 psi
    3rd Auxiliary Flow - - 14 gpm
    Hydraulic Cycle Time - Lower, Float - - 2.4 s

    Loader Hydraulic System
    Hydraulic Cycle Time - Lift - - 4.4 s
    Hydraulic Cycle Time - Dump - - 0.7 s

    Cab
    ROPS - - ISO 3471:2008
    FOPS - - ISO 3449:2005 Level I

    Dimensions (Approximate) - Standard Lift
    Cab Height - - 8.25 ft
    Ground Clearance - - 10 in
    Wheel Base - - 6.42 ft
    Overall Length - With Bucket* - - 15.75 ft
    Reach at Maximum Dump Height* - - 2.33 ft
    Dig Depth - - 6 in
    Maximum Dump Height* - - 7.5 ft
    Load Over Height - - 9.17 ft
    Hinge Pin at Maximum Height - - 10.08 ft
    Departure Angle - Degrees - - 30°
    Overall Length - With Forks - - 17.08 ft
    Reach - Ground Level - - 2.67 ft
    Maximum Reach - - 4.5 ft
    Fork Depth Above Ground - - 2 in
    Fork Height at Maximum Reach - - 4.67 ft
    Maximum Fork Height - - 9.83 ft
    Fork Reach at Maximum Height - - 2 ft
    Turning Radius - Over Bucket* - - 13.17 ft
    Turning Radius - Inside Tire** - - 5.92 ft
    Width - Over Bucket* - - 5.83 ft
    Tire Gauge - - 4.33 ft
    Machine Width** - - 5.58 ft
    Articulation Angle - - 40°
    Steering Angle - - 80°
    Dump Angle at Maximum Height - - 40°
    Note (1) - - *Vary with bucket size.
    Note (2) - - **Vary with tire size.
    Note (3) - - Dimensions listed are based on the machine configured with cab with air conditioning, remote quick coupler, general purpose bucket or 1067 mm (42 in) forks, 75 kg (165 lb) operator, 33 × 15.5-16.5, 12 PR tires, without ride control, without precleaner.

    Operating Specifications - Standard Lift
    Tire Size - - 33 × 15.5-16.5, 12 PR
    Rated Bucket Capacity - - 0.8 yd³
    Breakout Force - - 6160 lbf
    Operating Weight - - 9414 lb
    Rated Operating Load at Full Turn - Bucket*** - - 2701 lb
    Straight Tipping Load - Bucket*** - - 6415 lb
    Full Turn Static Tipping Load - Bucket (ISO 14397-1*)*** - - 5401 lb
    Full Turn Static Tipping Load - Bucket (Rigid Tire**)*** - - 5512 lb
    Rack Back - Transport Position - - 51°
    Rated Operating Load at Full Turn - Forks (EN 474-3:2006, Firm and Level Ground, 500 mm [20 in] Load Center) (80% FTSTL)*** - - 3366 lb
    Rated Operating Load at Full Turn - Forks (EN 474-3:2006, Rough Terrain, 500 mm [20 in] Load Center) (60% FTSTL)*** - - 2524 lb
    Note (1) - - *Full compliance to ISO 14397-1 (2007) Sections 1 thru 6, which requires 2% verification be-tween calculation and testing.
    Note (2) - - **Compliance to ISO 14397-1 (2007) Sections 1 thru 5.
    Note (3) - - ***Manual quick coupler, precleaner hood.
    Note (4) - - Operating specifications shown are based on machine equipped with enclosed ROPS cab with air conditioning, remote quick coupler, 75 kg (165 lb) operator and general purpose bucket (GP), without ride control, without precleaner unless otherwise noted.

    Operating Specifications - High Lift
    Tire Size - - 33 × 15.5-16.5, 12 PR
    Rated Bucket Capacity - - 0.8 yd³
    Breakout Force - - 6204 lbf
    Operating Weight - - 9462 lb
    Rated Operating Load at Full Turn - Bucket*** - - 2502 lb
    Straight Tipping Load - Bucket*** - - 5975 lb
    Full Turn Static Tipping Load - Bucket (ISO 14397-1*)*** - - 5004 lb
    Full Turn Static Tipping Load - Bucket (Rigid Tire**)*** - - 5115 lb
    Rack Back - Transport Position - - 51°
    Rated Operating Load at Full Turn - Forks (EN 474-3:2006, Firm and Level Ground, 500 mm [20 in] Load Center) (80% FTSTL)*** - - 3148 lb
    Rated Operating Load at Full Turn - Forks (EN 474-3:2006, Rough Terrain, 500 mm [20 in] Load Center) (60% FTSTL)*** - - 2361 lb
    Note (1) - - *Full compliance to ISO 14397-1 (2007) Sections 1 thru 6, which requires 2% verification be-tween calculation and testing.
    Note (2) - - **Compliance to ISO 14397-1 (2007) Sections 1 thru 5.
    Note (3) - - ***Manual quick coupler, precleaner hood.
    Note (4) - - Operating specifications shown are based on machine equipped with enclosed ROPS cab with air conditioning, remote quick coupler, 75 kg (165 lb) operator and general purpose bucket (GP), without ride control, without precleaner unless otherwise noted.

    Maximum Material Densities - General Purpose
    Bucket Type - - General Purpose
    Rated Capacity - - 0.8 yd³
    Dump Height - - 90 in
    Maximum Material Density - - 3169 lb/yd³
    Bucket Width - - 70 in
    Note - - Based on ISO 7546:1983 and rated operating loads at full turn and standard linkage.

    Maximum Material Densities - Light Material
    Bucket Type - - Light Material
    Rated Capacity - - 1.3 yd³
    Dump Height - - 85 in
    Maximum Material Density - - 1989 lb/yd³
    Bucket Width - - 74 in
    Note - - Based on ISO 7546:1983 and rated operating loads at full turn and standard linkage.

    Sustainability
    Recyclability - - 97%
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