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    988 GC Wheel Loader
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    995 Wheel Loader
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    988 Wheel Loader
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    Engine
    Engine Model Cat® C15 Cat® 3516E Cat® C18 ™
    Rated Speed 2000 - 1700/min
    Peak Power Speed 1600 - 1500/rpm
    Engine Power - ISO 14396 449 HP 1847 HP -
    Gross Power - SAE J1995 456 HP 1870 HP -
    Net Power - SAE J1349 373 HP - -
    Emissions U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 U.S. EPA Tier 4 Final/EU Stage V or U.S. EPA Tier 1 equivalent 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 5.4 in 6.7 in 5.7 in
    Stroke 6.75 in 8.5 in 7.2 in
    Displacement 927 in³ 4766 in³ 1105 in³
    Peak Torque - 1,200 rpm - SAE J1995 1778 ft·lbf 8549 lb/ft -
    Torque Rise 16% 39% 58 %
    Net Power - SAE J1349 - Standard Ambient - 1739 HP -
    Net Power - SAE J1349 - High Ambient - 1696 HP -
    Note (1) - The power ratings apply when tested under the reference conditions for the specified standard. -
    Note (2) - The net power advertised is the power available at the flywheel when the engine is equipped with fan, alternator, air cleaner and muffler. -
    Note (3) - The gross power advertised is with the fan at maximum speed. -
    Net Power - SAE J1349:2011 - - 538 HP
    Engine Power - ISO 14396:2002 - - 580 HP
    Gross Power - SAE J1995:2014 - - 588 HP
    Peak Torque - 1,200 rpm - - 2230 lb/ft

    Operating Specifications
    Operating Weight 116858 lb - 112574 lb
    Rated Payload - Quarry Face 12.5 ton (US) - 12.5 t
    Bucket Capacity Range 6.4-7.6 m3 (8.3-10 yd3) 17.2-43.6 m3 (22.3-57 yd3) 4.7-13 m3 (6.2-17 yd3)
    Cat Truck Match - High Lift 772/773/775 789/793/794 773～775
    Operating Weight - Standard - 543772 lb -
    Operating Weight - High Lift - 547675 lb -
    Rated Payload - Standard Lift (Low to Moderate Digging Resistance) - 60 ton (US) -
    Rated Payload - Standard Lift (Moderate to High Digging Resistance) - 50 ton (US) -
    Rated Payload - High Lift (Low to Moderate Digging Resistance) - 55 ton (US) -
    Rated Payload - High Lift (Moderate to High Digging Resistance) - 50 ton (US) -
    Note - *Please contact your local dealer to determine if your application is suitable for this increased rated payload. -
    Cat Truck Match - Standard - 785/789 770～772
    Rated Payload - Loose Material - - 16 t

    Transmission
    Transmission Type Cat planetary power shift Cat Planetary Power Shift Cat planetary powershift
    Forward - 1 5 mile/h 4.6 mile/h 4 mile/h
    Forward - 2 8 mile/h 8 mile/h 7.2 mile/h
    Reverse - 1 5 mile/h 5 mile/h 4.7 mile/h
    Reverse - 2 8 mile/h 8.8 mile/h 8.3 mile/h
    Direct Drive - Forward 1 Lock-up disabled Lock-up disables Lock-up disabled
    Direct Drive - Forward 2 8 mile/h 8.7 mile/h 7.8 mile/h
    Direct Drive - Forward 3 14 mile/h 15.2 mile/h 13.9 mile/h
    Direct Drive - Forward 4 24 mile/h - 24.4 mile/h
    Direct Drive - Reverse 1 Lock-up disabled Lock-up disables 5 mile/h
    Direct Drive - Reverse 2 9 mile/h 9.6 mile/h 8.9 mile/h
    Direct Drive - Reverse 3 16 mile/h 16.8 mile/h 15.8 mile/h
    Direct Drive - Reverse 4 25.4 mile/h - -
    Forward - 3 - 13.6 mile/h 12.7 mile/h
    Reverse - 3 - 14.9 mile/h 14.4 mile/h
    Note - Travel speeds based on 58/85-57 tires. -
    Forward - 4 - - 21.6 mile/h

    Hydraulic System - Lift/Tilt
    Lift/Tilt System - Circuit EH - Load Sense Positive Flow Control EH- Positive Flow Control, Flow Sharing
    Lift/Tilt System 2X x 145 cc Variable displacement piston - Variable displacement piston
    Maximum Flow at 2,165 rpm 159 gal/min - -
    Relief Valve Setting - Lift/Tilt 4598 psi 5004 psi 4757 psi
    Cylinders, Double Acting - Lift, Bore and Stroke 190 mm x 1216 mm (7.5 in x 48 in) 370 × 1713 mm (14.6 × 67.4 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) 310 × 1086 mm (12.2 × 42.8 in) 269 mm × 685 mm (8.7 in × 27 in)
    Pilot System Variable displacement piston Open Loop and Pressure Reducing Variable displacement piston
    Tilt Cylinder - Stroke 27 in - -
    Lift/Tilt System - Pump - Variable Displacement Piston -
    Maximum Flow at 1,700 rpm Engine Speed - 541 gal/min -
    Maximum Flow at 1,400-1,860 rpm - - 153 gal/min
    Relief Valve Setting - Main - - 551 psi

    Hydraulic Cycle Times
    Rack Back 3.8 s 4.9 s -
    Raise 7.5 s 12.6 s -
    Dump 3 s 3.1 s -
    Lower Float Down 4.6 s 4.2 s -
    Total Hydraulic Cycle Time - Empty Bucket 18.9 s - -

    Hydraulic System - Steering
    Steering System - Circuit Pilot, load sensing Pilot, Load Sensing Pilot, load sensing
    Steering System - Pump Piston, variable displacement Piston, Variable Displacement Piston, variable displacement
    Maximum Flow 52 gal (US) - 71.3 gal/min
    Relief Valve Setting - Steering 4000 psi - 4351 psi
    Total Steering Angle 70° 80 degrees 86 °
    Steering Cycle Times - High Idle 3 s 4.3 s 3.4 s
    Steering Cycle Times - Low Idle 5.2 s 7.6 s 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 1.8 kg of refrigerant which has a CO2 equivalent of 2.574 metric tonnes.

    Axles
    Front Fixed Fixed Fixed
    Rear Trunnion Trunnion Trunnion
    Oscillation Angle +/-12.5° 9° 13 °

    Brakes
    Brakes ISO 3450:2011 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 and ISO 3449:2005 Level II standards

    Service Refill Capacities
    Fuel Tank 141 gal (US) - 188 gal (US)
    Cooling System 27 gal (US) - 31.7 gal (US)
    Engine Crankcase 9 gal (US) - -
    Diesel Exhaust Fluid Tank 5.5 gal (US) - 8.7 gal (US)
    Transmission 20 gal (US) - 31.7 gal (US)
    Differential - Final Drives - Front 49 gal (US) - 49.1 gal (US)
    Differential - Final Drives - Rear 45 gal (US) - 49.1 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) or ULSD blended with the following lower-carbon intensity fuels up to: - 20% biodiesel FAME (fatty a - -
    Coolant (Validated by Test Cell Fill Quantities) - - 33 gal (US)
    Crankcase - - 15.9 gal (US)
    Transmission - Validated by Test Cell Fill Quantities - - 29 gal (US)
    Hydraulic System Factory Fill - - 125.5 gal (US)
    Hydraulic System - Tank Only - - 63.4 gal (US)

    Sound Performance - Tier 4 Final/EU Stage V - Standard
    Operator Sound Level (ISO 6396) 72 dB(A) - -
    Machine Sound Level (ISO 6395) 110 dB(A) - -
    Note (1) 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. - -
    Note (2) 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 (3) The machine sound power level was measured according to the test procedures and conditions specified in ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. - -

    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 - -
    Rear Axle - Centerline to Bumper 10.3 ft - -
    Front Axle Centerline to Bucket Tip 15.7 ft - -
    Wheel Base 12.5 ft - -
    Maximum Overall Length 39.5 ft - -
    Ground to Lower Hitch Clearance 1.5 ft - -
    Clearance at Maximum Lift 12 ft - -
    B-Pin Height - Maximum Lift 18.7 ft - -
    Maximum Overall Height - Bucket Raised 25 ft - -
    Reach - Maximum Lift 7.7 ft - -
    Note Specifications are calculated with 6.9 m3 (9.0 yd3 ) rock bucket equipped with Michelin XLDD1 35/65 R33 tires. - -

    Buckets
    Bucket Capacities 6.4-7.6 m3 (8.3-10 yd3) - 4.7-13 m3 (6.2-17 yd3)

    Sustainability
    Recyclability 96% - -

    Complete System Fill
    Fuel Tank - Standard - 856 gal (US) -
    Fuel Tank - With 24 hr Attachment - 1414 gal (US) -
    Cooling System - 138 gal (US) -
    Engine Crankcase - 76 gal (US) -
    Transmission - 110 gal (US) -
    Differential - Final Drives - Front - 220 gal (US) -
    Differential - Final Drives - Rear - 200 gal (US) -
    Hydraulic Tank - Implement and Hydraulic Fan - 270 gal (US) -
    Hydraulic Tank - Steering and Braking - 100 gal (US) -
    Oil Renewal System (ORS)* - 20 gal (US) -
    Note - *Not available on Tier 4 Final/Stage V machines. Not available in all regions. -

    Cooling System
    Ambient Capability Hydraulically Driven Demand Fan - Standard - 109.4 °F -
    Ambient Capability Hydraulically Driven Demand Fan - High (Tier 1 equivalent) - 131 °F -
    Ambient Capability Hydraulically Driven Demand Fan - High (Tier 4 Final) - 127.4 °F -

    Sound Performance - Standard
    Operator Sound Level (ISO 6396:2008) - Tier 1/EU Stage I Equivalent - 74 dB(A) -
    Machine Sound Level (ISO 6395:2008) - 119 dB(A) -
    Note - The declared sound levels listed above include the addition of both measurement uncertainty and uncertainty due to production variation. Typical measurement uncertainty for this type of machine is 2 dBA in accordance with "ISO 4871". The measurement was c -

    Sound Performance - Suppression
    Operator Sound Level (ISO 6396:2008) - Tier 1/EU Stage I Equivalent - 73 dB(A) -
    Machine Sound Level (ISO 6395:2008) - 117 dB(A) -
    Note - The declared sound levels listed above include the addition of both measurement uncertainty and uncertainty due to production variation. Typical measurement uncertainty for this type of machine is 2 dBA in accordance with "ISO 4871". The measurement was c -

    Dimensions - Standard Lift - Approximate
    B-Pin Height - Maximum Lift - 28.8 ft -
    Clearance at Maximum Lift - 19.8 ft -
    Dump Angle at Maximum Lift - –50.0 degrees -
    Front Axle Centerline to Bucket Tip - 21.9 ft -
    Ground to Bumper Clearance - 4.4 ft -
    Ground to Center of Axles - 6 ft -
    Ground to Lower Hitch Clearance - 2.9 ft -
    Ground to Top of Exhaust Stacks - 23.2 ft -
    Ground to Top of Hood - 18.6 ft -
    Ground to Top of ROPS - 23.4 ft -
    Maximum Overall Height - Bucket Raised - 39.3 ft -
    Maximum Overall Length - 64.6 ft -
    Note - Assumes loaded 58/85-57 tires, tires at a static loaded radius of 1830 mm (6 ft), 596-5330 26 m3 (34 yd3) bucket, 431-0064 HD tips. -
    Rack Angle at Maximum Lift - 59.5 degrees -
    Rack Back Angle - Carry - 47.7 degrees -
    Rack Back Angle - Ground Level - 39.7 degrees -
    Reach - Maximum Lift - 9.6 ft -
    Rear Axle - Centerline to Bumper - 20.4 ft -
    Tread Width - 14.1 ft -
    Wheel Base - 22.3 ft -
    Width - Over Tires - With Bulge - 18.8 ft -

    Dimensions - High Lift - Approximate
    B-Pin Height - Maximum Lift - 31.6 ft -
    Clearance at Maximum Lift - 22.6 ft -
    Dump Angle at Maximum Lift - –50.0 degrees -
    Front Axle Centerline to Bucket Tip - 24.2 ft -
    Ground to Bumper Clearance - 4.4 ft -
    Ground to Center of Axles - 6 ft -
    Ground to Lower Hitch Clearance - 2.9 ft -
    Ground to Top of Exhaust Stacks - 23.2 ft -
    Ground to Top of Hood - 18.6 ft -
    Ground to Top of ROPS - 23.4 ft -
    Maximum Overall Height - Bucket Raised - 42.1 ft -
    Maximum Overall Length - 66.9 ft -
    Note - Assumes loaded 58/85-57 tires, tires at a static loaded radius of 1830 mm (6 ft), 596-5330 26 m3 (34 yd3) bucket, 431-0064 HD tips. -
    Rack Angle at Maximum Lift - 59.4 degrees -
    Rack Back Angle - Carry - 53.5 degrees -
    Rack Back Angle - Ground Level - 45 degrees -
    Reach - Maximum Lift - 9.4 ft -
    Rear Axle - Centerline to Bumper - 20.4 ft -
    Tread Width - 14.1 ft -
    Wheel Base - 22.3 ft -
    Width - Over Tires - With Bulge - 18.8 ft -

    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

    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
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