988K Wheel Loader
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Engine
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- Net Power
- 541.0hp
- Engine Model
- Cat® C18 ACERT™
- Net Power – SAE J1349
- 541.0hp
- Bore
- 5.7in
- Stroke
- 7.2in
- Displacement
- 1105.0in3
- Torque Rise
- 58.0%
- Rated Speed
- 1,700 rpm
- Emissions
- U.S. EPA Tier 4 Final/EU Stage IV OR Tier 3/Stage IIIA Equivalent OR Tier 2/Stage II Equivalent
- Gross - ISO 14396
- 580HP
- Peak Power Speed
- 1500/min
- Peak Power Speed - 1,500 rpm - Gross - ISO 14396
- 580HP
- Peak Power Speed - 1,500 rpm - Gross - SAE J1995
- 588HP
- Peak Power Speed - 1,500 rpm - Net Power - SAE J1349
- 541HP
- Peak Torque - 1,200 rpm
- 2104lb/ft
- Net Power
- 541HP
- Engine Model
- Cat® C18 ™
- Bore
- 5.7in
- Stroke
- 7.2in
- Displacement
- 1105in³
- Torque Rise
- 58%
- Rated Speed
- 1700/min
- Emissions
- U.S. EPA Tier 4 Final/EU Stage V OR Tier 3/Stage IIIA Equivalent OR Tier 2/Stage II Equivalent
- Net Power - SAE J1349
- 541HP
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Operating Specifications
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- Operating Weight
- 112574.0lb
- Rated Payload – Quarry Face
- 12.5tons
- Rated Payload – Loose Material
- 16tons
- Rated Payload - High Lift
- 12.5tons
- Bucket Capacity Range
- 4.7-13 m3 (6.2-17 yd3)
- Cat Truck Match - Standard
- 770～772
- Cat Truck Match - High Lift
- 773～775
- Operating Weight
- 112574lb
- Rated Payload - Loose Material
- 16t
- Rated Payload - Quarry Face
- 12.5t
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Buckets
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- Bucket Capacities
- 4.7-13 m3 (6.2-17 yd3)
- Bucket Capacities
- 4.7-13 m3 (6.2-17 yd3)
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Transmission
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- Transmission Type
- Cat planetary power shift
- Forward 1
- 4.0mph
- Forward 2
- 7.2mph
- Forward 3
- 12.7mph
- Forward 4
- 21.6mph
- Reverse 1
- 4.7mph
- Reverse 2
- 8.3mph
- Reverse 3
- 14.4mph
- Direct Drive Forward 2
- 7.8mph
- Direct Drive Reverse 1
- 5.0mph
- Direct Drive Reverse 2
- 8.9mph
- Direct Drive - Forward 1
- Lock-up disabled
- Direct Drive - Forward 3
- 13.9mile/h
- Direct Drive - Forward 4
- 24.4mile/h
- Direct Drive - Reverse 3
- 15.8mile/h
- Transmission Type
- Cat-Planetenlastschaltgetriebe
- Forward - 1
- 4mile/h
- Forward - 2
- 7.2mile/h
- Forward - 3
- 12.7mile/h
- Forward - 4
- 21.6mile/h
- Reverse - 1
- 4.7mile/h
- Reverse - 2
- 8.3mile/h
- Reverse - 3
- 14.4mile/h
- Direct Drive - Forward 2
- 7.8mile/h
- Direct Drive - Reverse 1
- 5mile/h
- Direct Drive - Reverse 2
- 8.9mile/h
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Axles
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- Front
- Fixed
- Rear
- Trunnion
- Oscillation Angle
- 13°
- Front
- Fixed
- Rear
- Trunnion
- Oscillation Angle
- 13 °
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Hydraulic System – Steering
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- Steering System – Circuit
- Pilot, load sensing
- Steering System – Pump
- Piston, variable displacement
- Maximum Flow
- 71.3gal/min
- Steering Cycle Time (high idle)
- 3.4sec
- Steering Cycle Time (low idle)
- 5.6sec
- Total Steering Angle
- 86°
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Service Refill Capacities
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- Fuel Tank
- 188.0gal
- Cooling System
- 31.7gal
- Crankcase
- 15.9gal
- Transmission
- 31.7gal
- Differentials and Final Drives – Front
- 49.1gal
- Differentials and Final Drives – Rear
- 49.1gal
- Hydraulic System (tank only)
- 63.4gal
- Diesel Exhaust Fluid Tank (for Tier 4 Final/Stage IV only)
- 8.7gal
- Fuel Tank
- 188gal (US)
- Cooling System
- 31.7gal (US)
- Crankcase
- 15.9gal (US)
- Transmission
- 31.7gal (US)
- Hydraulic System - Tank Only
- 63.4gal (US)
- Diesel Exhaust Fluid Tank (For Tier 4 Final/Stage IV Only)
- 8.7gal (US)
- Differential - Final Drives - Front
- 49.1gal (US)
- Differential - Final Drives - Rear
- 49.1gal (US)
- Hydraulic System Factory Fill
- 125.5gal (US)
- Coolant (Validated by Test Cell Fill Quantities)
- 33gal (US)
- Transmission - Validated by Test Cell Fill Quantities
- 29gal (US)
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Sound Performance – Tier 4 Final/Stage IV: Standard
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- Machine Sound Level (ISO 6395)
- 111dB(A)
- Operator Sound Level (ISO 6396)
- 72dB(A)
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Hydraulic System – Lift/Tilt
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- 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)
- Maximum Flow at 1,400-1,860 rpm
- 153.0gal/min
- Pilot System
- Variable displacement piston
- Relief Valve Setting – Lift/Tilt
- 4757psi
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Sound Performance – Tier 4 Final/Stage IV: Suppression
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- Machine Sound Level (ISO 6395)
- 109dB(A)
- Operator Sound Level (ISO 6396)
- 72dB(A)
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Brakes
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- Brakes
- SAE J1473 OCT90, ISO 3450:1992
- Brakes
- SAEÂ J1473Â OKT90, ISOÂ 3450:1992
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Hydraulic System - Lift/Tilt
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- Cylinders, Double Acting - Tilt, Bore and Stroke
- 269 mm × 685 mm (8.7 in × 27 in)
- Lift/Tilt System - Circuit
- EH- Positive Flow Control, Flow Sharing
- Maximum Flow at 1,400-1,860 rpm
- 153gal/min
- Pilot System
- Variable displacement piston
- Relief Valve Setting - Lift/Tilt
- 4757psi
- Lift/Tilt System
- Variable displacement piston
- Maximum Flow
- 13.7gal/min
- Relief Valve Setting - Main
- 551psi
- Cylinders, Double Acting - Lift, Bore and Stroke
- 210 mm × 1050 mm (8.7 in × 41.3 in)
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Hydraulic System - Steering
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- Maximum Flow
- 71.3gal/min
- Steering Cycle Times - High Idle
- 3.4s
- Steering Cycle Times - Low Idle
- 5.6s
- Steering System - Circuit
- Pilot, load sensing
- Steering System - Pump
- Piston, variable displacement
- Total Steering Angle
- 86 °
- Relief Valve Setting - Steering
- 4351psi
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Sound Performance - Tier 4 Final/Stage IV - Standard
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- Machine Sound Level (ISO 6395)
- 111dB(A)
- Operator Sound Level (ISO 6396)
- 72dB(A)
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Sound Performance - Tier 4 Final/Stage IV: Suppression
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- Machine Sound Level (ISO 6395)
- 109dB(A)
- Operator Sound Level (ISO 6396)
- 72dB(A)
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Sound Performance - Tier 2 Equivalent/Stage II: Standard
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- Operator Sound Level ( ISO 6396)
- 73dB(A)
- Machine Sound Level (ISO 6395)
- 112dB(A)
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Hydraulic Cycle Time (1,400-1,860 rpm)
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- Dump
- 2.2s
- Lower Float Down
- 3.5s
- Rack Back
- 4.5s
- Raise
- 8s
- Total Hydraulic Cycle Time - Empty Bucket
- 18.2s
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Sound Performance – Tier 2 Equivalent/Stage II: Standard
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- Operator Sound Level (ISO 6396)
- 73dB(A)
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Sound Performance - Tier 2 Equivalent/Stage II: Suppression
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- Operator Sound Level (ISO 6396)
- 72dB(A)
- Machine Sound Level (ISO 6395)
- 110dB(A)
Standard Equipment:
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- Note
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- Standard and optional equipment may vary. Consult your Cat dealer for details.
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- Electrical
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- Alarm, back-up
- Alternator, single 150 amp
- Batteries, dry
- Converter, 10/15 amp, 24V to 12V
- Lighting system (halogen, work lights, access and service platform lighting)
- Starting and charging system, 24V
- Starter emergency start receptacle
- Starter lockout in bumper
- Transmission lockout in bumper
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- Operator Environment
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- Graphical Information Display, displays real time operating information, performs calibrations and customizes operator settings
- Air conditioner
- Cat Detect Vision, rear vision camera system
- Cab, sound suppressed and pressurized, integrated rollover protective structure (ROPS/FOPS) radio ready for entertainment, includes antenna, speakers and converter (12-volt 5-amp) and power port
- Controls, lift and tilt function
- Heater, defroster
- Horn, electric
- Instrumentation, gauges: – Coolant temperature – Engine hour meter – Hydraulic oil temperature – Power train oil temperature
- Light, cab, dome
- Lunchbox, beverage holders
- Mirrors, rearview (externally mounted)
- Rimpull Control System
- Seat, Cat Comfort (cloth), air suspension, six-way adjustable
- Seat belt minder
- Seat belt, retractable, 76 mm (3 in) wide
- STIC Control System
- UV glass
- Transmission gear indicator
- Vital Information Management System (VIMS) with Graphical Information Display: External Data Port, Customizable Operator Profiles, Cycle Timer, Integrated Payload Control System
- Wet-Arm wipers/washers (front and rear): – Intermittent front and rear wipers
- Lights, directional
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- Power Train
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- Brakes, oil-cooled, multi-disc, service/secondary
- Case drain screens
- Crankcase guard
- Electro hydraulic parking brake
- Engine, C18 MEUI diesel, turbocharged/aftercooled
- Ground level engine shutoff
- Turbine precleaner, engine air intake
- Radiator, Aluminum Modular Radiator (AMR)
- Starting aid, ether, automatic
- Throttle lock, electronic
- Torque converter, Impeller Clutch (ICTC) with Lock up clutch (LUC), Rimpull Control System
- Transmission, planetary powershift, 4F/3R electronic control
- Manual switch and automatic fuel priming
- Cat Production Measurement ready
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- Other
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- Automatic bucket lift kickout/positioner
- Base machine price includes a rim allowance
- Hydraulically driven demand fan
- Couplings, Cat O-ring face seals
- Doors, service access (locking)
- Ecology drains for engine, radiator, hydraulic tank
- Fuel tank, 731 L (188 gal)
- Hitch, drawbar with pin
- Hoses, Cat XT™
- Hydraulic, steering and brake filtration/screening system
- Cat Clean Emission Module
- Oil sampling valves
- Premixed 50% concentration of extended life coolant with freeze protection to –34° C (–29° F)
- Rear access to cab and service platform
- Steering, load sensing
- Toe kicks
- Vandalism protection caplocks
Optional Equipment:
-
- Note
-
- Standard and optional equipment may vary. Consult your Cat dealer for details.
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- Power Train
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- –50° C (–58° F) antifreeze
- Engine oil change system, high speed, Wiggins
- Engine block heater 120V or 240V
- High ambient cooling – software
- Cat Production Measurement
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- Operator Environment
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- Cab precleaner
- AM/FM/CD/MP3 radio
- Satellite Sirius radio with bluetooth
- LED warning strobe
- CB radio ready
- Window pull down visor
- Handrail mounted mirrors
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- Miscellaneous Attachments
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- Front and rear roading fenders
- Fast fill fuel system (Shaw-Aero)
- Cold Weather Starting (extra starter plus two batteries)
- Aggregate Handler
