Offering world class performance, value and reliability.

Rated Net Power 143 hp
Model Cat® 3056E DIT ATAAC
SAE J1349 143 hp
ISO 9249 (1997) 145 hp
EEC 80/1269 145 hp
Max. Net Power @ 2000 rpm 155 hp
SAE J1349 155 hp
ISO 9249 (1997) 156 hp
EEC 80/1269 156 hp
Bore 3.94 in
Stroke 5 in
Displacement 366 in3

Operating Weight 27140 lb
Optional Counterweight 654.77 lb

Bucket Capacities 2.0 m3 - 2.3 m3 2.6 yd3 - 3.0 yd3
Bucket Width 8.36 ft
Capacity - Reference bucket 2.62 yd3
Type - Reference bucket GP
Breakout force - Reference bucket 25844 lb

Overall Height 16.4 ft
Wheelbase 9.6 ft
Width over tires 6.4 ft
Height to Top of ROPS/FOPS 10.8 ft
Height to Top of Exhaust Stack 10.6 ft
Height to Top of Hood 7.3 ft
Height to Center of Axle 2.3 ft
Ground Clearance 1.4 ft
Overall Length 23.1 ft
Length - Rear Axle to Bumper 6.4 ft
Center Line of Front Axle-Hitch 4.9 ft
Wheel Base Length 9.6 ft
Dump Clearance-Max Lift-45° 9.5 ft
Bucket Clearance-Max Lift/Carry 12.4 ft
Bucket Pin Height at Max Lift 12.4 ft
Overall Height - Bucket Raised 16.4 ft
Reach at Max Lift and 45° Dump 3 ft
Rack Back Angle at Max Lift 58 Degrees
Dump Angle at Max Lift 45 Degrees
Rack Back Angle-Ground 44 Degrees
Rack Back Angle at Carry 47.8 Degrees
Carry Height 3 ft
Digging Depth 3.4 in

Operating Specifications
Breakout Force 25844 lb
Static Tipping Load (Full Turn) 18931.07 lb
Reach - full lift/45 degree dump angle 3 ft
Dump clearance - Full lift/45 degree dump angle 9.5 ft
Articulation Angle 40 Degrees

Loader Hydraulic System
Output at 2300 engine rpm and 6900 kPa (1000 psi) with SAE 10W oil at 65°C (150°F) 40.3 gal/min
Hydraulic Cycle Time 10.1 Seconds
Pump flow - Implement pump 40.15 gal/min
Hydraulic cycle time:
Raise 6.1 Seconds
Dump 1.2 Seconds
Lower, empty, float down 2.8 Seconds
Total 10.1 Seconds
Relief valve setting 3600 psi
Lift cylinders, double acting:
Bore 4.75 in
Stroke 27 in
Tilt cylinder, double acting:
Bore 5 in
Stroke 21.7 in

Size 17.5-25PR (L-2)
Tread Width 96 ft
Choice of:

Axle Oscillation 11 Degrees

Steering Articulation 40 Degrees
Minimum turning radius (over tire) 206 in
Steering angle, each direction 40 Degrees
Steering cylinders, two, bore 2.75 in
Hydraulic output at 2300 engine rpm and 6900 kPa (1000 psi) 27 gal/min
Maximum working pressure 3000 psi

Forward 1 4.9 mph
2 7.8 mph
3 16 mph
4 23.4 mph
Reverse 1 4.9 mph
2 7.8 mph
3 16 mph

Service Refill Capacities
Fuel tank 59.4 gal
Cooling system 11.1 gal
Crankcase 3.7 gal
Transmission 9.1 gal
Differentials and final drives:
Front 6.9 gal
Rear 6.6 gal
Hydraulic system (including tank) 33 gal
Hydraulic tank 18.5 gal


ROPS SAE J1040 MAY94, ISO 3471-1994
FOPS SAE J/ISO 3449 APR98 Level II, ISO 3449-1992 Level II

Implement Controls

Caterpillar Power Train
Rugged, dependable Cat components deliver maximum rimpull to the ground and full power to the loader hydraulics.

Caterpillar Power Train

Caterpillar Engine
The six-cylinder 3056E Direct Injection Turbocharged (DIT) engine with Air-to-Air After Cooler (ATAAC) has a proven reputation for reliability, durability and performance. Fuel injection is electronically controlled for precise timing.

Torque Rise
The engine features a 41% torque rise for increased power during heavy-duty use.

Emission Standards
The 3056E DIT ATAAC engine meets worldwide emissions standards.

Low cylinder pressure rise and low peak pressure provide outstanding reliability and durability.

Cooling System
Engine and cooling system are in separate compartments for clean, quiet operation and easy service.

Air-to-Air After Cooling
Air-to-air after cooling reduces engine emissions.

Electronic Control Module
The Caterpillar engine control module not only controls the timing needs of the engine but also monitors critical systems to maintain optimum performance and provide engine protection.

Service Intervals
The recommended engine oil change requirement is every 500 hours of operation.

Heavy-duty design features strong gears and bearings for durable performance. Oscillating rear axle helps assure four-wheel ground contact for optimum traction and stability.

Oil-disc brakes are adjustment-free and fully enclosed.

Optional Heavy-Duty Brakes
Optional heavy-duty brakes provide additional brake discs and axle oil cooler for severe applications.

Duo-Cone® Seals
Duo-Cone Seals keep oil in and contaminants out.

Limited Slip Differentials
Optional front and rear Limited Slip Differentials provide improved traction in poor or uneven underfoot conditions.

Rugged, field-proven Caterpillar 4F/3R transmission uses heavy-duty components for durable and reliable operation. High-energy friction materials allow for better heat tolerance while thick reaction plates allow for better heat dissipation. The transmission is also designed for easy service and rebuild.

Electronic Clutch Pressure Control
The Electronic Clutch Pressure Control (ECPC) manages shift torque providing exceptional smoothness.

High-contact ratio spur gears are precision ground and heat treated for quiet, durable operation.

Shifting Options
Operator can choose manual shift or two autoshift modes (full throttle or variable shift control). Full throttle selection provides maximum acceleration while variable selection increases fuel economy and improves operator comfort.

Operator Station
Ergonomic design emphasizes comfort, visibility and easy operation.

Operator Station

The ergonomic cab provides a comfortable work environment with large windows, spacious interior room, generous storage areas and low interior sound levels.

Access/egress is through a two-door design. Both doors open fully and lock flush against the cab. Steps leading up to the cab are wide and angled out for secure footing.

Large windows improve visibility in all directions. The rear window features a standard electric defroster. Sliding glass is available as an option on the doors.

Visibility to critical areas such as the bucket have been optimized. Lift arm spacing is wide and linkage geometry maximizes visibility throughout the production cycle.

Instrument Panel
Redesigned instrument panel is conveniently located with easy-to-read gauges and expanded warning/indicator and diagnostic functions.

Electronic Engine Speed Control
A specific engine RPM can be set and maintained with a switch in the cab.

Steering System
The load-sensing, closed-center steering system with flow amplification matches steering response to a wide variety of applications. The adjustable steering console lifts easily out of the way. Dual suspended brake pedals function as a brake and a transmission neutralizer so the operator can maintain high engine RPM for full hydraulic flow and fast cycle times.

Low Effort Operation
Hydraulic joystick controls provide ease of lift and tilt functions. A single joystick is standard. An integrated directional control switch on the joystick provides easy operation and enhanced productivity. A two lever control is optional.

The standard seat is available in cloth or vinyl and with fully adjustable fore/aft position, seatback angle, bottom cushion height, armrest angle and suspension stiffness. Other seat options include:
  • Cat Contour Seat, fabric, with adjustable backrest and lumbar support.
  • Cat Contour Seat, fabric, electrically adjustable with air suspension.

Generous storage space includes a lockable compartment, coat hook and special molded compartments designed to hold a lunchbox/cooler, cup or can. A tool box is also provided.

Customize the Cab
The cab can be customized with:
  • 12V converter for powering electronics such as cellular phones, two-way radios and music systems
  • Radio installation packages
  • Sun visor for windshield
  • Roll-down sun screen for rear window
  • External mirror package
  • Auxiliary lighting packages

Hydraulic System
Hydraulic system provides improved efficiency and greater control.

Hydraulic System

Precise Control
Designed by Caterpillar, the hydraulic system provides low-effort operation and superior control.

Fast loader cycle times result in greater productivity. The hydraulic system is matched to the power train for outstanding performance.

Joystick Control
Low effort, joystick implement control improves efficiency with simultaneous lift and tilt functions.

Tilt Cylinder
A large tilt cylinder delivers exceptional backdrag performance.

Caterpillar XT™ hoses and couplings provide rugged, reliable performance with significantly reduced risk of leaks and blown lines.

Dual Circuit Control Valve
The 928Gz comes standard with a control valve for lift and tilt functions. One additional valve section can be added to the existing ones for additional functions.

Ground Level Access
The control valves feature convenient ground level access for easy modifications to the system.

Separate steering and implement pumps improve machine response.

Load-Sensing Steering
Load-sensing steering provides low effort operator control, making more power available for rimpull, breakout and lift forces.

Pressure Taps
Standard pressure taps allow quick diagnosis of the entire hydraulic system.

Optional Ride Control System
The improved Ride Control System provides a comfortable ride at all speeds and improved hard bank digging. Three modes are available: auto, on and off.

Caterpillar Buckets
Caterpillar buckets are an integral part of a machine designed to optimize performance.

Caterpillar Buckets

Choice of Buckets
Caterpillar offers a variety of buckets to meet your specific job requirements. Careful match of the bucket design and machine operating characteristics provide the best digging, loading and carrying performance.

General Purpose Buckets
Caterpillar general purpose buckets, available in 2.0 m3 (2.6 yd3) and 2.3 m3 (3.0 yd3) capacities with bolt-on cutting edge, and are suitable for most general applications. Features include:
  • Improved bucket design with longer floor and a larger radius for easier flow of material into the bucket
  • Patented Two-Bolt Corner Guard Cutting Edge System for superior wear resistance, better stability and a simple bolt-on system
  • Built-in, replaceable heel wear plates for extended bucket life

Ground Engaging Tools
Ground engaging tools include hardened steel cutting edges, choice of short or long teeth and a variety of tooth adapters. These tools optimize performance, improve load retention and extend the useful life of Caterpillar buckets.

For expanded machine versatility, factory installed quick couplers and other special purpose buckets are also available. Contact your Caterpillar dealer for details.

Improved access and fewer maintenance requirements add up to unparalleled ease of service.


Easy Access
Gull-wing engine enclosure doors with gas struts lift for exceptional access to filters and service points. Radiator and oil coolers are easily accessible for cleaning.

Simplified Routine Service
All service points are accessible from the ground level. Easily check radiator coolant, hydraulic oil and transmission oil levels with sight gauges.

Swing-out Cooling Fan
A swing-out cooling fan allows quick, easy cleaning and service of the radiator. The fan is hydraulically driven and separate from the engine compartment for exceptional low noise operation.

Optional Reversing Fan
Optional reversing capability of the fan cleans screens without interrupting machine operation.

S•O•SSM Ports
Scheduled Oil Sampling ports are factory installed for improved access to engine, transmission and hydraulic oils. S•O•S ports make oil sampling quicker, cleaner and provide the best oil sample for analysis.

Oil Filters
Spin-on filters for engine oil, transmission oil and hydraulic oil are vertically mounted for easier servicing.

Self-diagnostic transmission and data link allows quick and easy troubleshooting by service personnel. Service codes are easily accessed through the gauge console.

Extended Life Coolant/Antifreeze
Cat Extended Life Coolant/Antifreeze allows extended operation (up to 6,000 hours) between changes.

Other Service Features
Other service features include:
  • Maintenance-free driveshaft
  • Stationary radiator and coolant hoses
  • Standard hydraulic oil cooler
  • Adjustment-free brakes
  • Adjustment-free engine fuel system
  • Grouped grease fittings
  • Positive torque hose clamps
  • Braided, color coded and numbered wiring

Owning & Operating Costs
Cost saving features help improve your bottom line.

Owning & Operating Costs

Low Fuel Consumption
The 3056E DIT ATAAC engine features low fuel consumption for more economical operation.

Increased Power, Faster Cycle Times
High horsepower and increased torque rise results in more power and faster cycle times, allowing the operator to get more work done in a day.

Extended Service Intervals
Service intervals have been extended to reduce machine service time and increase machine availability:
  • 4,000 hour hydraulic oil change (S•O•S sampling required)
  • 1,000 hour hydraulic filter change
  • 500 hour engine oil change

Smoother Transmission for Increased Productivity
A smoother shifting transmission provides a more comfortable work environment, allowing the operator to be more productive throughout the entire work shift.

Demand Fan
Demand fan changes speed to meet cooling requirements and save fuel.

Engine Derate Feature
Auto Derate monitors vital engine systems and will reduce the engine horsepower up to 50% to protect the engine.

Equipment Management Option
Caterpillar's asset management or equipment management system called Product Link-World View, enables dealers and their customers to track equipment for hours and location, and in some cases monitor machine health. This easy-to-use system provides information flow between a machine and the user through the internet based Dealer StoreFront. This information helps lower operating costs through timely service/repairs and optimized machine use.

Machine Security System Option
The Machine Security System (MSS) inhibits unauthorized machine use by immobilizing vital electrical circuits. Critical machine circuits are inhibited unless a valid key is used to start the machine.

Environmentally Responsible Design
Caterpillar machines not only help you build a better world, they help maintain and preserve the fragile environment.

Environmentally Responsible Design

Low Fuel Consumption
The 928Gz is a top performer in it's size class. The result is more work done in a day, less fuel consumed and minimal impact on the environment.

Low Exhaust Emissions
The Cat 3056E DIT ATAAC is a low emission engine designed to meet current worldwide emission regulations and is Tier 2 compliant.

Quiet Operation
The engine cooling system allows the engine to be fully enclosed, allowing less engine noise to escape. With the optional sound suppression package, the 928Gz is even quieter.

Ozone Protection
To help protect the earth's ozone layer, the air conditioning unit uses only R-134a refrigerant which does not contain harmful chlorofluorocarbons (CFC's).

Fewer Leaks and Spills
Engine oil, transmission and hydraulic filters are positioned vertically and are easily removed without spillage. The Cat 3056E is fitted with a Closed Circuit Breather to eliminate valve cover drips. Cat O-ring face seals, XT hose and hydraulic cylinders are all designed to help prevent fluid leaks that can weaken the machine's performance and cause harm to the environment.

Rebuildable Components
All major components are designed for rebuildability.

Biodegradable Hydraulic Oil
Caterpillar biodegradable hydraulic oil can be used in the 928Gz, providing an environmentally-sound alternative to mineral-based oils.

Complete Customer Support
Caterpillar dealer services ensure a longer machine operating life with lower costs.

Complete Customer Support

Make detailed comparisons of machines before purchasing. What are the job requirements? What production is needed? What is the true cost of lost production? Your Cat dealer can give you precise answers to these questions.

Look at the total package. Consider the financing options available through your Cat dealer as well as day-to-day operating costs. Dealer support services can be included in the cost of the machine to yield lower equipment owning and operating costs over the life of the machine.

For the best operating techniques to increase productivity and your profit, turn to your Cat dealer for the latest training literature and knowledgeable staff.

Choose from a wide range of maintenance services at the time of machine purchase. Repair option programs guarantee the cost of repairs up front. Diagnostic programs such as S•O•S Oil Analysis and Technical Analysis help avoid unscheduled repairs that can cost unnecessary time and money.

Repair, rebuild or replace? Your Cat dealer can help you evaluate the cost involved to make the right choice.

Product Support
You will find nearly all parts at our dealer parts counter. Cat dealers utilize a worldwide computer network to find in-stock parts to minimize machine downtime. Additionally, Caterpillar offers a line of genuine remanufactured components which can help lower repair costs.

For more complete information on Cat products, dealer services, and industry solutions, visit us on the web at www.cat.com. Specializing in fast, accurate and up-to-date information, the Cat web site delivers the information you need to operate your business, 24-hours a day.

Standard Equipment

  • Alternator, 80-amp
  • Alarm, back-up
  • Batteries, maintenance-free, 950 CCA, (2)
  • Directional signals (front & rear)
  • Starting and charging system, 24V
  • Halogen work lights (front & rear)
  • Ignition key start/stop switch
  • Roading lights
  • Starting aid, thermal
  • Cab, ROPS (sound suppressed and pressurized)
  • Gauges: - Engine coolant temperature - Hydraulic oil temperature - Torque converter oil temperature - Fuel level gauge - Speedometer - Digital tachometer - Digital hour meter/odometer
  • Warning indicators: - Primary steering malfunction - Electrical system voltage low - Coolant temperature - Engine oil pressure low - Parking brake applied - Brake charge pressure low - Transmission oil temperature - Transmission oil filter bypass - Hydraulic oil filter bypass
  • Adjustable tilt steering column
  • Coat hook
  • Ground level door release
  • Heater/defroster
  • Horn, steering wheel mounted (electric)
  • Hydraulic control lever lockout
  • Interior light
  • Interior and exterior auxiliary power sockets
  • Lighter
  • Lunch box storage with cup holder
  • Pilot hydraulic implement controls
  • Rear window defroster, electric
  • Rear view mirrors (2 inside)
  • Seat, adjustable suspension, armrest (fabric or vinyl)
  • Seat belt, 75 mm (3 in), retractable
  • Tinted safety glass
  • Tool box
  • Two door cab, fixed glass
  • Wet arm front & rear wiper/washer, front intermittent
  • Engine, Caterpillar 3056E DIT ATAAC - Low emission diesel engine - Turbocharged - After cooled - Closed Circuit Breather (CCB) - Electronically controlled engine
  • Air cleaner, dry type
  • Brakes, enclosed wet-disc full hydraulic
  • Differentials, conventional (front/rear)
  • Driveshaft, lubed for life
  • Engine fuel priming pump
  • Engine speed control
  • Fuel/water separator
  • Muffler
  • Radiator, unit serviceable
  • S•O•S oil sampling port, engine oil
  • S•O•S oil sampling port, transmission oil
  • Torque converter
  • Transmission, 4F/3R, autoshift, single lever control with F/N/R and kickdown button
  • Transmission neutralizer; operator programmable
  • Hydraulic diagnostic connectors
  • Hydraulic oil cooler
  • Hydraulic control, 2-valve, 1-lever with F/N/R
  • Load-sensing steering system
  • S•O•S oil sampling port, hydraulic oil
  • Antenna, for radio
  • Antifreeze/coolant, extended-life protects to -36°C (-33°F)
  • Automatic bucket positioner/fork positioner
  • Brakes, secondary and parking
  • Bucket positioner, automatic
  • Counterweight
  • Engine enclosure, lockable
  • Fenders, front
  • Hitch, recovery
  • Loader linkage, z-bar with sealed pins
  • Lift kickout, automatic
  • Machine Security System ready
  • Product Link-World View ready
  • Remote grease lines
  • Steering stops, cushioned
  • Swing-out, hydraulically driven demand fan
  • Vandalism protection, lockable service points
  • Visual indicators: - air cleaner service - coolant level - hydraulic oil - transmission oil

Optional Equipment

Air conditioner (R-134a refrigerant)
Alternator, 95-amp
Antifreeze/coolant, extended-life, protects to -50°C (-58°F)
Beacon light, rotating, magnetic-mount
Brakes, heavy duty
Buckets/ground engaging tools
Canopy, ROPS
Counterweight, additional 297 kg (655 lb)
Differential, Limited Slip, front axle and/or rear axle
Differential, NoSpin, rear axle only (custom)
Dust bowl pre-cleaner
Electrical accessories package (12V converter, accessory plug outlet, wiring)
Extended lift arms available through Cat Work Tools
Fan, reversing
Fenders, roading, rear
Flood lights, auxiliary, cab-mounted
Guards: - Crankcase - Front driveline - Power train - Waste guarding package
Hydraulic control, two lever (lift/tilt)
Hydraulic control, third valve
Hydraulic oil cooler, heavy-duty
Load check valves (dealer installed)
Machine Security System
Material handling arm
Mirrors, external (two)
Pallet forks, carriage
Product Link
Quick Coupler
Radio prep packages:
  • 12V installation, includes speakers, cable, mounting bracket, hardware, converter and accessory plug. Radio not included.
  • AM/FM Radio
  • AM/FM Radio with CD Player
Radiator, wide fin spacing, 5.5 fpi
Ride Control System
Seats: - Cat Contour Seat, fabric, with adjustable backrest and lumbar support - Cat Contour Seat, fabric, electrically adjustable with air suspension
Sliding door windows (left and right)
Sound suppression package (custom)
Starting aid, engine coolant heater, 120V
Steering, secondary
Sun screen, rear
Tires: - Bias ply, 17.5 - 25 and 20.5 - 25 - Radial, 17.5 - R25, 20.5 - R25 and 600/65 R25
Visor, sun (front)



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