At a glance data:
Engine Power - ISO 14396:2002:
580hp
Engine Model:
Cat® C18
Rated Speed:
1700/rpm
Peak Power Speed:
1500/rpm
Overview
Cat® Large Wheel Loaders are designed with durability built in, ensuring maximum availability through multiple life cycles. With optimized performance and simplified serviceability, our machines allow you to move more material efficiently and safely at a low cost per ton. Introduced in 1963, the 988 has been an industry leader for 60 years. Focused on helping our customers succeed, we have continued to build upon each new series. The 988 continues our legacy of reliability, performance, safety, operator comfort, serviceability, and efficiency.
Category:
Large Wheel Loaders
Category:
Large Wheel Loaders
Brand:
Caterpillar
Brand:
Caterpillar
Engine
Engine Power - ISO 14396:2002:
580hp
Engine Model:
Cat® C18
Rated Speed:
1700/rpm
Peak Power Speed:
1500/rpm
Gross Power - SAE J1995:2014:
588hp
Net Power - SAE J1349:2011:
538hp
Bore:
5.7in
Stroke:
7.2in
Displacement:
1105in³
Peak Torque - 1,200 rpm:
2104lbf·ft
Torque Rise:
58%
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 emission standards.
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.
Operating Specifications
Operating Weight:
112574lb
Bucket Capacity Range:
4.7-13 m3 (6.2-17 yd3)
Rated Payload - Quarry Face:
12.5t
Rated Payload - Loose Material:
16t
Cat Truck Match - Standard:
770 - 772
Cat Truck Match - High Lift:
773 - 775
Transmission
Transmission Type:
Cat planetary powershift
Forward - 1:
4.0mile/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:
5.0mile/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 - Pump:
Variable displacement piston
Maximum Flow at 1,400-1,860 rpm:
153gpm
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:
266 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:
8.0s
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 at 1,400-1,600 rpm:
71.3gpm
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 or R1234yf. See the label or instruction manual for identification of the gas. • If equipped with R134a (Global Warming Potential = 1430), the system contains 1.8 kg (3.9 lb) of refrigerant which has a CO2 equivalent of 2.574 metric tonnes (2.837 tons).
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
Sound Performance - Tier 4 Final / Stage V
Operator Sound Pressure Level (ISO 6396:2008):
73dB(A)
Machine Sound Power Level (ISO 6395:2008):
111dB(A)
Operator Sound Pressure Level (ISO 6396:2008)*:
72dB(A)
Machine Sound Power Level (ISO 6395:2008)**:
109dB(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):
73dB(A)
Machine Sound Power Level (ISO 6395:2008):
112dB(A)
Operator Sound Pressure Level (ISO 6396:2008)*:
72dB(A)
Machine Sound Power Level (ISO 6395:2008)**:
110dB(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.
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 (For Tier 4 Final/Stage V Only):
8.7gal (US)
Transmission:
24.3gal (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)
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)* – 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. • Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).** • For pre-Tier 4 engines: Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels** up to: – 100% biodiesel FAME (fatty acid methyl ester)* – 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. * For use of blends higher than 20% biodiesel, consult your Cat dealer. ** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels.
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:
18.0ft
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
Standard Equipment
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
Optional Equipment
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
Block Handling Coupler for 988K Wheel Loaders
Engine Power - ISO 14396:2002:
580hp
Engine Model:
Cat® C18
Rated Speed:
1700/rpm
Peak Power Speed:
1500/rpm
4.4m³ (5.75yd³) Iron Ore Bucket for Wheel Loaders
Engine Power - ISO 14396:2002:
580hp
Engine Model:
Cat® C18
Rated Speed:
1700/rpm
Peak Power Speed:
1500/rpm
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