988 Wheel Loader
360° Exterior View
360° Exterior View
360° Exterior View
360° Exterior View
360° Interior View
360° Interior View
360° Interior View
At a Glance
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Overview
Engine
+ -Net Power - SAE J1349:2011 | 538hp |
Engine Power - ISO 14396:2002 | 580hp |
Gross Power - SAE J1995:2014 | 588hp |
Engine Model | Cat® C18 ™ |
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 | 5.7in |
Stroke | 7.2in |
Displacement | 1105in³ |
Peak Torque - 1,200 rpm | 2230lb/ft |
Torque Rise | 58% |
Operating Specifications
+ -Operating Weight | 112574lb |
Rated Payload - Quarry Face | 12.5t |
Rated Payload - Loose Material | 16t |
Bucket Capacity Range | 4.7-13 m3 (6.2-17 yd3) |
Cat Truck Match - Standard | 770~772 |
Cat Truck Match - High Lift | 773~775 |
Transmission
+ -Transmission Type | Cat planetary powershift |
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 1 | Lock-up disabled |
Direct Drive - Forward 2 | 7.8mile/h |
Direct Drive - Forward 3 | 13.9mile/h |
Direct Drive - Forward 4 | 24.4mile/h |
Direct Drive - Reverse 1 | 5mile/h |
Direct Drive - Reverse 2 | 8.9mile/h |
Direct Drive - Reverse 3 | 15.8mile/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 | 153gal/min |
Relief Valve Setting - Lift/Tilt | 4757psi |
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 | 551psi |
Hydraulic Cycle Time (1,400-1,860 rpm)
+ -Rack Back | 4.5s |
Raise | 8s |
Dump | 2.2s |
Lower Float Down | 3.5s |
Total Hydraulic Cycle Time - Empty Bucket | 18.2s |
Hydraulic System - Steering
+ -Steering System - Circuit | Pilot, load sensing |
Steering System - Pump | Piston, variable displacement |
Maximum Flow | 71.3gal/min |
Relief Valve Setting - Steering | 4351psi |
Total Steering Angle | 86 ° |
Steering Cycle Times - High Idle | 3.4s |
Steering Cycle Times - Low Idle | 5.6s |
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. |
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 | 188gal (US) |
Cooling System | 31.7gal (US) |
Coolant (Validated by Test Cell Fill Quantities) | 33gal (US) |
Crankcase | 15.9gal (US) |
Diesel Exhaust Fluid Tank | 8.7gal (US) |
Transmission | 31.7gal (US) |
Transmission - Validated by Test Cell Fill Quantities | 29gal (US) |
Differential - Final Drives - Front | 49.1gal (US) |
Differential - Final Drives - Rear | 49.1gal (US) |
Hydraulic System Factory Fill | 125.5gal (US) |
Hydraulic System - Tank Only | 63.4gal (US) |
Sound Performance - Tier 4 Final / Stage V - Standard
+ -Operator Sound Pressure Level (ISO 6396:2008) | 73dB(A) |
Machine Sound Power Level (ISO 6395:2008) | 111dB(A) |
Sound Performance - Tier 3 / Stage III - Standard
+ -Operator Sound Pressure Level (ISO 6396:2008) | 73dB(A) |
Machine Sound Power Level (ISO 6395:2008) | 112dB(A) |
Dimensions (Approximate) - Standard Lift Linkage
+ -Ground to Top of ROPS | 13.8ft |
Ground to Top of Exhaust Stacks | 14.8ft |
Ground to Top of Hood | 10.9ft |
Rear Axle - Centerline to Bumper | 10.5ft |
Front Axle Centerline to Bucket Tip | 14ft |
Wheel Base | 14.9ft |
Maximum Overall Length | 39.3ft |
Ground to Lower Hitch Clearance | 1.9ft |
Clearance at Maximum Lift | 11.9ft |
B-Pin Height - Maximum Lift | 18ft |
Maximum Overall Height - Bucket Raised | 24.5ft |
Reach - Maximum Lift | 6.5ft |
Dimensions (Approximate) - High Lift Linkage
+ -Ground to Top of ROPS | 13.8ft |
Ground to Top of Exhaust Stacks | 14.8ft |
Ground to Top of Hood | 10.9ft |
Rear Axle - Centerline to Bumper | 10.5ft |
Front Axle Centerline to Bucket Tip | 15.3ft |
Wheel Base | 14.9ft |
Maximum Overall Length | 40.7ft |
Ground to Lower Hitch Clearance | 1.9ft |
Clearance at Maximum Lift | 13.3ft |
B-Pin Height - Maximum Lift | 19.3ft |
Maximum Overall Height - Bucket Raised | 25.8ft |
Reach - Maximum Lift | 6.8ft |
Buckets
+ -Bucket Capacities | 4.7-13 m3 (6.2-17 yd3) |
Standard Equipment:
Note
+ --
Standard and optional equipment may vary. Consult your Cat dealer for details.
Electrical
+ --
Alarm, back-up
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Alternator, single 150 amp
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Batteries, dry
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Converter, 10/15 amp, 24V to 12V
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Lighting system (halogen, work lights, access and service platform lighting)
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Starting and charging system, 24V
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Jump start receptacle
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Starter lockout in bumper
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Transmission lockout in bumper
Operator Environment
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Graphical Information Display, displays real time operating information, performs calibrations and customizes operator settings
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Air conditioner
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Cat Vision, rear vision camera system
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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
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Controls, lift and tilt function
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Heater, defroster
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Horn, electric
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Instrumentation, gauges: – Coolant temperature – Engine hour meter – Hydraulic oil temperature – Power train oil temperature
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Light, cab, dome
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Lunchbox, beverage holders
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Mirrors, rearview (externally mounted)
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Rimpull Control System
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Seat, deluxe
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Seat belt minder
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Seat belt, retractable, 76 mm (3 in) wide
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STIC Control System
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UV glass
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Transmission gear indicator
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Vital Information Management System (VIMS) with Graphical Information Display: External Data Port, Customizable Operator Profiles, Cycle Timer, Integrated Payload Control System
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Wet-Arm wipers/washers (front and rear): – Intermittent front and rear wipers
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Lights, directional
Power Train
+ --
Brakes, oil-cooled, multi-disc, service/secondary
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Case drain screens
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Crankcase guard
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Electro hydraulic parking brake
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Engine, C18 MEUI diesel, turbocharged/aftercooled
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Ground level engine shutoff
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Turbine precleaner, engine air intake
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Radiator, Aluminum Modular Radiator (AMR)
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Starting aid, ether, automatic
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Throttle lock, electronic
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Torque converter, Impeller Clutch (ICTC) with Lock up clutch (LUC), Rimpull Control System
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Transmission, planetary powershift, 4F/3R electronic control
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Manual switch and automatic fuel priming
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Cat Production Measurement ready
Other
+ --
Automatic bucket lift kickout/positioner
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Base machine price includes a rim allowance
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Hydraulically driven demand fan
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Couplings, Cat O-ring face seals
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Doors, service access (locking)
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Ecology drains for engine, radiator, hydraulic tank
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Fuel tank, 712 L (188 gal)
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Hitch, drawbar with pin
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Hoses, Cat XT™
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Hydraulic, steering and brake filtration/screening system
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Cat Clean Emission Module
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Oil sampling valves
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Premixed 50% concentration of extended life coolant with freeze protection to –34° C (–29° F)
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Rear access to cab and service platform
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Steering, load sensing
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Toe kicks
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Vandalism protection caplocks
Optional Equipment:
Note
+ -Standard and optional equipment may vary. Consult your Cat dealer for details.
Power Train
+ -–50° C (–58° F) antifreeze
Engine oil change system, high speed, Wiggins
High ambient cooling – software
Cat Production Measurement
Operator Environment
+ -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
Additional Equipment
+ -Additional counterweight
Front and rear roading fenders
Fast fill fuel system (Shaw-Aero)
Cold Weather Starting (extra starter plus two batteries), engine block heater 120V or 240V, heated fuel lines
Other Optional Configurations
+ -Aggregate Handler