Wheel Loader

988

This unit includes a general purpose bucket, maintenance package, connectivity, remote monitoring and your own team of product experts from Holt of California

The image displayed is representative and may not reflect the exact specifications.
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The image displayed is representative and may not reflect the exact specifications.

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.

Engine

Net Power - SAE J1349 541HP
Engine Power - ISO 14396 580HP
Gross Power - SAE J1995 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
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/EU Stage V - Standard

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

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
  • 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
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
Miscellaneous Attachments
  • Load and carry 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
  • Aggregate Handler
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