988 Wheel Loader

  • Exterior View
  • Exterior View
  • Exterior View
  • Exterior View
  • Interior View
  • Interior View
  • Interior View

Engine

Net Power
541 HP
Engine Model
Cat® C18
Bore
6 in
Stroke
7 in
Displacement
1,105 in³
Torque Rise
58 %
Rated Speed
1700/rpm
Peak Power Speed - 1,500 rpm - Gross - ISO 14396
580 HP
Peak Power Speed
1500/rpm
Peak Power Speed - 1,500 rpm - Gross - SAE J1995
588 HP
Net Power - SAE J1349
541 HP
Peak Torque - 1,200 rpm
2,104 lbf·ft
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
Peak Power Speed - 1,500 rpm - Net Power - SAE J1349
541 HP
Gross - ISO 14396
580 HP
Engine Power - ISO 14396
580 HP
Gross Power - SAE J1995
588 HP
Net Power - SAE J1349:2011
538 hp
Engine Power - ISO 14396:2002
580 hp
Gross Power - SAE J1995:2014
588 hp
Note (1)
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.

Sound Performance - Tier 4 Final/EU Stage V - Standard

Operator Sound Level (ISO 6396)
72 dB(A)
Machine Sound Level (ISO 6395)
111 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.

Operating Specifications

Operating Weight
112,574 lb
Bucket Capacity Range
4.7-13 m3 (6.2-17 yd3)
Rated Payload - Loose Material
16 t
Rated Payload - Quarry Face
13 t
Cat Truck Match - High Lift
773 - 775
Cat Truck Match - Standard
770 - 772

Transmission

Transmission Type
Cat planetary powershift
Forward - 1
4 mile/h
Forward - 2
7 mile/h
Forward - 3
13 mile/h
Forward - 4
22 mile/h
Reverse - 1
5 mile/h
Reverse - 2
8 mile/h
Reverse - 3
14 mile/h
Direct Drive - Forward 2
8 mile/h
Direct Drive - Reverse 2
9 mile/h
Direct Drive - Forward 4
24 mile/h
Direct Drive - Reverse 3
16 mile/h
Direct Drive - Reverse 1
5 mile/h
Direct Drive - Forward 3
14 mile/h
Direct Drive - Forward 1
Lock-up disabled

Hydraulic System - Lift/Tilt

Relief Valve Setting - Main
551 psi
Cylinders, Double Acting - Tilt, Bore and Stroke
266 mm × 685 mm (8.7 in × 27 in)
Pilot System
Variable displacement piston
Maximum Flow at 1,400-1,860 rpm
153 gpm
Relief Valve Setting - Lift/Tilt
4,757 psi
Maximum Flow
14 gal/min
Cylinders, Double Acting - Lift, Bore and Stroke
210 mm × 1050 mm (8.7 in × 41.3 in)
Lift/Tilt System
Variable displacement piston
Lift/Tilt System - Circuit
EH- Positive Flow Control, Flow Sharing
Lift/Tilt System - Pump
Variable displacement piston

Service Refill Capacities

Fuel Tank
188 gal (US)
Cooling System
32 gal (US)
Crankcase
16 gal (US)
Transmission
24 gal (US)
Hydraulic System - Tank Only
63 gal (US)
Differential - Final Drives - Rear
49 gal (US)
Diesel Exhaust Fluid Tank (For Tier 4 Final/Stage IV Only)
9 gal (US)
Differential - Final Drives - Front
49 gal (US)
Hydraulic System Factory Fill
126 gal (US)
Coolant (Validated by Test Cell Fill Quantities)
33 gal (US)
Transmission - Validated by Test Cell Fill Quantities
29 gal (US)
Diesel Exhaust Fluid Tank
9 gal (US)
Diesel Exhaust Fluid Tank (For Tier 4 Final/Stage V Only)
9 gal (US)
Note
• 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

Buckets

Bucket Capacities
4.7-13 m3 (6.2-17 yd3)

Axles

Front
Fixed
Rear
Trunnion
Oscillation Angle
13 °

Brakes

Brakes
ISO 3450:2011

Hydraulic System - Steering

Maximum Flow
71 gal/min
Total Steering Angle
86 °
Relief Valve Setting - Steering
4,351 psi
Steering System - Circuit
Pilot, load sensing
Steering System - Pump
Piston, variable displacement
Steering Cycle Times - Low Idle
6 s
Steering Cycle Times - High Idle
3 s
Maximum Flow at 1,400-1,600 rpm
71 gpm

Hydraulic Cycle Time (1,400-1,860 rpm)

Dump
2 s
Total Hydraulic Cycle Time - Empty Bucket
18 s
Rack Back
5 s
Lower Float Down
4 s
Raise
8 s

Sound Performance - Tier 4 Final/Stage IV - Standard

Machine Sound Level (ISO 6395)
111 dB(A)
Operator Sound Level (ISO 6396)
72 dB(A)

Sound Performance - Tier 4 Final/Stage IV: Suppression

Operator Sound Level (ISO 6396)
72 dB(A)
Machine Sound Level (ISO 6395)
109 dB(A)

Sound Performance - Tier 2 Equivalent/Stage II: Standard

Machine Sound Level (ISO 6395)
112 dB(A)
Operator Sound Level (ISO 6396)
73 dB(A)

Sound Performance - Tier 2 Equivalent/Stage II: Suppression

Machine Sound Level (ISO 6395)
110 dB(A)
Operator Sound Level (ISO 6396)
72 dB(A)

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

Operator's Cab

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

Dimensions (Approximate) - Standard Lift Linkage

Ground to Top of ROPS
14 ft
Ground to Top of Hood
11 ft
Ground to Top of Exhaust Stacks
15 ft
Rear Axle - Centerline to Bumper
11 ft
Front Axle Centerline to Bucket Tip
14 ft
Wheel Base
15 ft
Maximum Overall Length
39 ft
Ground to Lower Hitch Clearance
2 ft
Clearance at Maximum Lift
12 ft
B-Pin Height - Maximum Lift
18 ft
Maximum Overall Height - Bucket Raised
25 ft
Reach - Maximum Lift
7 ft

Dimensions (Approximate) - High Lift Linkage

Ground to Top of ROPS
14 ft
Ground to Top of Exhaust Stacks
15 ft
Ground to Top of Hood
11 ft
Rear Axle - Centerline to Bumper
11 ft
Front Axle Centerline to Bucket Tip
15 ft
Wheel Base
15 ft
Maximum Overall Length
41 ft
Ground to Lower Hitch Clearance
2 ft
Clearance at Maximum Lift
13 ft
B-Pin Height - Maximum Lift
19 ft
Maximum Overall Height - Bucket Raised
26 ft
Reach - Maximum Lift
7 ft

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)

Sound Performance - Tier 4 Final / Stage V

Operator Sound Pressure Level (ISO 6396:2008)
73 dB(A)
Machine Sound Power Level (ISO 6395:2008)
111 dB(A)
Operator Sound Pressure Level (ISO 6396:2008)*
72 dB(A)
Machine Sound Power Level (ISO 6395:2008)**
109 dB(A)
Note (1)
* 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.
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.
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.
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.

Sound Performance - Tier 3 / Stage IIIA

Operator Sound Pressure Level (ISO 6396:2008)
73 dB(A)
Machine Sound Power Level (ISO 6395:2008)
112 dB(A)
Operator Sound Pressure Level (ISO 6396:2008)*
72 dB(A)
Machine Sound Power Level (ISO 6395:2008)**
110 dB(A)
Note (1)
* 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.
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.
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.
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.

PROVEN RELIABILITY

LONG TERM VALUE AND DURABILITY

PERFORMANCE AND PRODUCTIVITY

PERFORMANCE WITH LESS FUEL

PRODUCTIVITY WITH TECHNOLOGY

SAFETY FIRST

SAVE ON SERVICE AND MAINTENANCE

OPERATOR COMFORT AND CONTROL

PURPOSE-BUILT SPECIALTY MODELS - BLOCK HANDLER

PURPOSE-BUILT SPECIALTY MODELS - MILLYARD

PURPOSE-BUILT SPECIALTY MODELS - STEEL MILL

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Electrical
    • Alarm, back-up
    • Alternator, single 150 amp
    • Batteries, dry
    • Converter, 10/15 amp, 24V to 12V
    • Lighting system (LED, work lights, access and service platform lighting)
    • Starting and charging system, 24V
    • Auxiliary jump start receptacle
    • Starter lockout in bumper
    • Transmission lockout in bumper
  • Operator Environment
    • Graphical Information Display, displays real time operating information, performs calibrations and customizes operator settings
    • CB radio ready
    • Air conditioner
    • Cat Vision, rear vision camera system
    • Cab, sound suppressed and pressurized, integrated rollover protective structure/falling objects 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 – Powertrain oil temperature
    • Light, cab, dome
    • Lunchbox, beverage holders
    • Radio, AM/FM/CD/MP3 Bluetooth®
    • Mirrors, rearview (externally mounted)
    • Rimpull Control System (RCS)
    • Seat, deluxe
    • Seat belt minder
    • Seat belt, retractable, 76 mm (3 in) wide
    • Steering and Transmission Integrated Control (STIC) System
    • UV glass
    • Vital Information Management System (VIMS) with Graphical Information Display: External Data Port
    • Wet-arm wipers/washers (front and rear): – Intermittent front and rear wipers
    • Lights, directional
  • Powertrain
    • Brakes, oil-cooled, multi-disc, service/secondary
    • Case drain screens
    • Electro hydraulic parking brake
    • Engine, C18 Mechanically Actuated Electronic Unit Injection (MEUI) diesel, turbocharged/aftercooled
    • Ground level engine shutdown switch
    • Turbine precleaner, engine air intake
    • Premixed 50% concentration of extended life coolant with freeze protection to –34° C (–29° F)
    • 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
  • Additional Equipment
    • 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, 712 L (188 gal)
    • Hitch, drawbar with pin
    • Hoses, Cat XT
    • Hydraulic, steering and brake filtration/screening system
    • Cat Clean Emission Module (CEM)
    • Oil sampling valves
    • Rear access to cab and service platform
    • Steering, load sensing
    • Toe kicks
    • Vandalism protection caplocks
  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Powertrain
    • –50° C (–58° F) antifreeze
    • Crankcase guard
    • Engine oil change system, high speed, Wiggins
    • High ambient cooling – software
    • Cat Production Measurement
  • Operator Environment
    • Cab precleaner
    • LED warning strobe
    • Window pull down visor
    • Handrail mounted mirrors
  • Additional Equipment
    • Additional counterweight
    • Front and rear roading fenders
    • Fast fill fuel system (Shaw-Aero)
    • Cold weather package: additional starter and 2 batteries, engine block heater 120V or 240V, heated fuel lines
  • Other Optional Configurations
    • Aggregate Handler
    • Block Handler
    • Millyard
    • Steel Mill
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