Block Handling
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Caterpillar
988 Wheel Loader
Net Power – SAE J1349:2011
538 hp
401 kW
Engine Power – ISO 14396:2002
580 hp
432 kW
Gross Power – SAE J1995:2014
588 hp
439 kW
Overview
The Cat® 988 Wheel Loader helps you move more material in less time, at a low cost per ton, for a fast return on your investment. This machine offers significant fuel savings with durability to achieve multiple lifecycles.
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Exterior
360° Exterior view. Double click on the image to zoom in on any area of the product.
Interior
360° interior view. Double click on the image to zoom in on any area of the product.
Details
Specifications
Engine
| Spec | Value |
|---|---|
| Net Power – SAE J1349:2011 | 538 hp 401 kW |
| Engine Power – ISO 14396:2002 | 580 hp 432 kW |
| Gross Power – SAE J1995:2014 | 588 hp 439 kW |
| Engine Model | Cat® C18 ™ Cat® C18 ™ |
| Peak Power Speed | 1500/rpm 1500/rpm |
| Rated Speed | 1700/min 1700/min |
| 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 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 | 5.7 in 145 mm |
| Stroke | 7.2 in 183 mm |
| Displacement | 1105 in³ 18.1 l |
| Peak Torque – 1,200 rpm | 2230 lb/ft 3023 N·m |
| Torque Rise | 58 % 58 % |
Operating Specifications
| Spec | Value |
|---|---|
| Operating Weight | 112574 lb 51062 kg |
| Rated Payload – Quarry Face | 12.5 t 11.3 t |
| Rated Payload – Loose Material | 16 t 14.5 t |
| Bucket Capacity Range | 4.7-13 m3 (6.2-17 yd3) 4.7-13 m3 (6.2-17 yd3) |
| Cat Truck Match – Standard | 770～772 770～772 |
| Cat Truck Match – High Lift | 773～775 773～775 |
Transmission
| Spec | Value |
|---|---|
| Transmission Type | Cat planetary powershift Cat planetary powershift |
| Forward – 1 | 4 mile/h 6.5 km/h |
| Forward – 2 | 7.2 mile/h 11.6 km/h |
| Forward – 3 | 12.7 mile/h 20.4 km/h |
| Forward – 4 | 21.6 mile/h 34.7 km/h |
| Reverse – 1 | 4.7 mile/h 7.5 km/h |
| Reverse – 2 | 8.3 mile/h 13.3 km/h |
| Reverse – 3 | 14.4 mile/h 23.2 km/h |
| Direct Drive – Forward 1 | Lock-up disabled Lock-up disabled |
| Direct Drive – Forward 2 | 7.8 mile/h 12.5 km/h |
| Direct Drive – Forward 3 | 13.9 mile/h 22.3 km/h |
| Direct Drive – Forward 4 | 24.4 mile/h 39.3 km/h |
| Direct Drive – Reverse 1 | 5 mile/h 8 km/h |
| Direct Drive – Reverse 2 | 8.9 mile/h 14.3 km/h |
| Direct Drive – Reverse 3 | 15.8 mile/h 25.5 km/h |
Hydraulic System - Lift/Tilt
| Spec | Value |
|---|---|
| Lift/Tilt System – Circuit | EH- Positive Flow Control, Flow Sharing EH- Positive Flow Control, Flow Sharing |
| Lift/Tilt System | Variable displacement piston Variable displacement piston |
| Maximum Flow at 1,400-1,860 rpm | 153 gal/min 580 l/min |
| Relief Valve Setting – Lift/Tilt | 4757 psi 32800 kPa |
| Cylinders, Double Acting – Lift, Bore and Stroke | 210 mm × 1050 mm (8.7 in × 41.3 in) 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) 269 mm × 685 mm (8.7 in × 27 in) |
| Pilot System | Variable displacement piston Variable displacement piston |
| Relief Valve Setting – Main | 551 psi 3800 kPa |
Hydraulic Cycle Time (1,400-1,860 rpm)
| Spec | Value |
|---|---|
| Rack Back | 4.5 s 4.5 s |
| Raise | 8 s 8 s |
| Dump | 2.2 s 2.2 s |
| Lower Float Down | 3.5 s 3.5 s |
| Total Hydraulic Cycle Time – Empty Bucket | 18.2 s 18.2 s |
Hydraulic System - Steering
| Spec | Value |
|---|---|
| Steering System – Circuit | Pilot, load sensing Pilot, load sensing |
| Steering System – Pump | Piston, variable displacement Piston, variable displacement |
| Maximum Flow | 71.3 gal/min 270 l/min |
| Relief Valve Setting – Steering | 4351 psi 30000 kPa |
| Total Steering Angle | 86 ° 86 ° |
| Steering Cycle Times – High Idle | 3.4 s 3.4 s |
| Steering Cycle Times – Low Idle | 5.6 s 5.6 s |
Air Conditioning System
| Spec | Value |
|---|---|
| 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
| Spec | Value |
|---|---|
| Front | Fixed Fixed |
| Rear | Trunnion Trunnion |
| Oscillation Angle | 13 ° 13 ° |
Brakes
| Spec | Value |
|---|---|
| Brakes | ISO 3450:2011 ISO 3450:2011 |
Operator's Cab
| Spec | Value |
|---|---|
| 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
| Spec | Value |
|---|---|
| Fuel Tank | 188 gal (US) 712 l |
| Cooling System | 31.7 gal (US) 120 l |
| Coolant (Validated by Test Cell Fill Quantities) | 33 gal (US) 125 l |
| Crankcase | 15.9 gal (US) 60 l |
| Diesel Exhaust Fluid Tank | 8.7 gal (US) 33 l |
| Transmission | 31.7 gal (US) 120 l |
| Transmission – Validated by Test Cell Fill Quantities | 29 gal (US) 110 l |
| Differential – Final Drives – Front | 49.1 gal (US) 186 l |
| Differential – Final Drives – Rear | 49.1 gal (US) 186 l |
| Hydraulic System Factory Fill | 125.5 gal (US) 475 l |
| Hydraulic System – Tank Only | 63.4 gal (US) 240 l |
Sound Performance - Tier 4 Final / Stage V - Standard
| Spec | Value |
|---|---|
| Operator Sound Pressure Level (ISO 6396:2008) | 73 dB(A) 73 dB(A) |
| Machine Sound Power Level (ISO 6395:2008) | 111 dB(A) 111 dB(A) |
Sound Performance - Tier 3 / Stage III - Standard
| Spec | Value |
|---|---|
| Operator Sound Pressure Level (ISO 6396:2008) | 73 dB(A) 73 dB(A) |
| Machine Sound Power Level (ISO 6395:2008) | 112 dB(A) 112 dB(A) |
Dimensions (Approximate) - Standard Lift Linkage
| Spec | Value |
|---|---|
| Ground to Top of ROPS | 13.8 ft 4202 mm |
| Ground to Top of Exhaust Stacks | 14.8 ft 4521 mm |
| Ground to Top of Hood | 10.9 ft 3334 mm |
| Rear Axle – Centerline to Bumper | 10.5 ft 3187 mm |
| Front Axle Centerline to Bucket Tip | 14 ft 4254 mm |
| Wheel Base | 14.9 ft 4550 mm |
| Maximum Overall Length | 39.3 ft 11991 mm |
| Ground to Lower Hitch Clearance | 1.9 ft 568 mm |
| Clearance at Maximum Lift | 11.9 ft 3641 mm |
| B-Pin Height – Maximum Lift | 18 ft 5491 mm |
| Maximum Overall Height – Bucket Raised | 24.5 ft 7455 mm |
| Reach – Maximum Lift | 6.5 ft 1981 mm |
Dimensions (Approximate) - High Lift Linkage
| Spec | Value |
|---|---|
| Ground to Top of ROPS | 13.8 ft 4202 mm |
| Ground to Top of Exhaust Stacks | 14.8 ft 4521 mm |
| Ground to Top of Hood | 10.9 ft 3334 mm |
| Rear Axle – Centerline to Bumper | 10.5 ft 3187 mm |
| Front Axle Centerline to Bucket Tip | 15.3 ft 4661 mm |
| Wheel Base | 14.9 ft 4550 mm |
| Maximum Overall Length | 40.7 ft 12398 mm |
| Ground to Lower Hitch Clearance | 1.9 ft 568 mm |
| Clearance at Maximum Lift | 13.3 ft 4043 mm |
| B-Pin Height – Maximum Lift | 19.3 ft 5887 mm |
| Maximum Overall Height – Bucket Raised | 25.8 ft 7849 mm |
| Reach – Maximum Lift | 6.8 ft 2062 mm |
Buckets
| Spec | Value |
|---|---|
| Bucket Capacities | 4.7-13 m3 (6.2-17 yd3) 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
- 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
- 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
- Air conditioner
- Cat 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, deluxe
- 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
POWER TRAIN
- 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
OTHER
- 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, 712 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.
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
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