834K Scoops Wheel Dozer

Engine

Engine Model	C18 Cat®
Net Power	496 HP
Bore	145 mm
Stroke	183 mm
Displacement	18.1 l
Rated Speed	1,900/min
Emissions	U.S. EPA Tier 4 Final/EU Stage IV, Tier 3 Equivalent, or Tier 2 Equivalent
Torque Rise	52%
Net - SAE J1349	370 kW
Peak Power Speed	1500/min
Peak Torque - 1,300 rpm	2836 N·m
Gross - SAE J1349	419 kW

Transmission

Direct Drive - Reverse 3	23 km/h
Forward - 3	20.3 km/h
Direct Drive - Reverse 1	7.2 km/h
Forward - 2	11.6 km/h
Direct Drive - Forward 2	12.4 km/h
Forward - 1	6.8 km/h
Direct Drive - Reverse 2	13 km/h
Reverse - 2	12.2 km/h
Direct Drive - Forward 3	22.1 km/h
Reverse - 1	6.8 km/h
Reverse - 3	21.4 km/h
Forward - 4	35.4 km/h
Direct Drive - Forward 1	Lock-up disabled
Direct Drive - Forward 4	38.5 km/h
Transmission Type	Cat planetary power shift
Note	Travel speeds based on 35/65-R33 tire.

Brakes

Brakes

ISO 3450: 2011

Axles

Front	Fixed
Rear	Trunnion
Oscillation Angle	±13°

Weights

Operating Weight

51290 kg

Service Refill Capacities

Cooling System	120 l
Crankcase	60 l
Transmission	120 l
Hydraulic System - Tank Only	140 l
Differential - Final Drives - Rear	186 l
Differential - Final Drives - Front	186 l
Hydraulic System Factory Fill	240 l
Diesel Exhaust Fluid Tank*	33 l
Fuel Tank	793 l
Note (1)	All non-road Tier 4 Final/Stage IV Technology diesel engines are required to use: – Ultra Low Sulfur Diesel (ULSD) fuels containing 15 ppm (mg/kg) sulfur or less. Biodiesel blends up to B20 are acceptable when blended with 15 ppm (mg/kg) sulfur or less ULSD and when the biodiesel feedstock meets ASTM D7467 specifications. – Cat DEO-ULS™ or oils that meet the Cat ECF-3, API CJ-4, and ACEA E9 specifications are required.
Note (2)	*Only applicable to Tier 4 Final/Stage IV equipped machines.

Operating Specifications

Coal Scoop Operating Weight	51103 kg
Chip Scoop Operating Weight	51290 kg

Sound Performance - Tier 4 Final/Stage IV: Suppression

Operator Sound Level (ISO 6396)	72 dB(A)
Machine Sound Level (ISO 6395)	109 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.
Note (3)	The machine sound power level was measured according to the test procedures and conditions specified in ISO 6395:2008. – The measurement was conducted at 70 percent of the maximum engine cooling fan speed.

Sound Performance - Tier 4 Final/Stage IV - Standard

Operator Sound Level (ISO 6396)	73 dB(A)
Machine Sound Level (ISO 6395)	111 dB(A)
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.
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 (3)	The machine sound power level was measured according to the test procedures and conditions specified in ISO 6395:2008. – The measurement was conducted at 70 percent of the maximum engine cooling fan speed.

Dimensions (Approximate)

Height - Top of Exhaust Stack	4498 mm
Centerline of Front Axle to Hitch	2275 mm
Length - With Chip Scoop on Ground	11974 mm
Ground to Center of Front Axle	978 mm
Length - With Coal Scoop on Ground	11971 mm
Height - Top of Cab	4184 mm
Length - Front of Tire	8715 mm
Centerline of Rear Axle to Edge of Bumper	3187 mm
Height - Top of Air Cleaner	3895 mm
Height - Top of Hood	3334 mm
Ground Clearance	531 mm
Wheel Base	4550 mm
Height - Edge of Dumped Scoop	1520 mm
Height - Edge of Retracted Scoop	2250 mm
Dump Angle at Full Lift Height	64 deg

Scoops

Coal Scoop Carry Capacity	22.9 m³
Type	Large capacity scoops for both wood chip and coal applications. A mesh screen integrated into the back of the scoop maintains visibility to the cutting edge. The chip scoop version has extra screens at the top due to higher capacity.
Components	Both scoops come with dual lift cylinders for increased lift capacity. Integrated stabilizer system makes sure that the scoop stays stable and centralized on the machine. Scoop tilt function is standard and provides ±15 degrees of tilt to maintain grade conditions and keep your operation safe.
Coal Scoop Doze Capacity	45.9 m³
Chip Scoop Carry Capacity	26.8 m³
Chip Scoop Doze Capacity	53.5 m³

Hydraulic System - Lift/Dump/Tilt

Pilot Maximum Flow	52 l/min
Pilot Relief Valve Setting	4000 kPa
Maximum Flow at 1,900 rpm	582 l/min
Lift/Tilt System	Variable displacement piston
Cylinders, Double Acting - Left and Right Dump, Bore and Stroke	127 mm × 838 mm (5.0 in × 33.0 in)
Lift/Tilt System - Circuit	Pilot operated LS valve with EH
Relief Valve Setting - Lift/Tilt	29000 kPa
Cylinders, Double Acting - Lift, Bore and Stroke	170.0 mm × 1107 mm (6.7 in × 43.6 in)
Pilot System	Variable displacement piston
Cylinders, Double Acting - Tilt, Bore and Stroke	152.4 mm × 953 mm (6.0 in × 37.5 in)

Hydraulic System - Steering

Maximum Flow	250 l/min
Total Steering Angle	86°
Steering Cycle Times - Low Idle	5.7 s
Steering Cycle Times - High Idle	3.1 s
Relief Valve Setting - Steering	24100 kPa
Steering System - Pump	Piston, variable displacement
Steering System - Circuit	Pilot, load sensing

Sound Performance - Tier 2 Equivalent/Stage II: Standard

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.
Machine Sound Level (ISO 6395)	112 dB(A)
Operator Sound Level (ISO 6396)	81 dB(A)
Note (3)	The machine sound power level was measured according to the test procedures and conditions specified in ISO 6395:2008. – 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.

Sound Performance - Tier 2 Equivalent/Stage II: Suppression

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.
Machine Sound Level (ISO 6395)	109 dB(A)
Operator Sound Level (ISO 6396)	81 dB(A)
Note (3)	The machine sound power level was measured according to the test procedures and conditions specified in ISO 6395:2008. – The measurement was conducted at 70 percent of the maximum engine cooling fan speed.

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.

Efficiency

Delivering fuel efficiency you demand through integrated machine systems.

Cat C18 ACERT Engine

The Cat C18 ACERT engine is built and tested to meet your most demanding applications. Three C18 ACERT engine options are available in this machine: Tier 4 Final/Stage IV with aftertreatment, Tier 3 equivalent, or Tier 2 equivalent.

• Fully integrated electronic engine controls works in concert with the entire machine to make your fuel go farther.
• Use less fuel idling with Engine Idle Shutdown.
• Maximized durability with Delayed Engine Shutdown.

Cat Planetary Powershift Transmission

Featuring all new Advanced Productivity Electronic Control Shifting (APECS) transmission controls provides greater momentum on grades and fuel savings by carrying that momentum through the shift points.

Impeller Clutch Torque Converter (ICTC)

Enable your operators to maximize efficiency by varying machine rimpull while putting more horsepower to hydraulics.

• Reduced tire wear
• Enables full throttle shifts for faster cycle times
• Provides smooth approach to the dump target for less spillage and faster cycle times.

Cat Torque Converter with Lock-up Clutch

• Eliminates TC losses while lowering system heat
• Improves travel speeds
• Reduces cycle times in load and carry operations

Improved Hydraulic Efficiency

• New flow sharing implement and steering variable displacement load sensing piston pumps.
• Hydraulic flow now on demand, for improved fuel efficiency.

Structures

Best built for the toughest conditions.

Robust Structures

Your bottom line is improved by highly durable structures that achieve multiple life cycles and withstand the toughest conditions.

• Full box-section rear frame resists torsional shock and twisting forces.
• Heavy-duty steering cylinder mounts efficiently transmit steering loads into the frame.
• Axle mounting has been optimized for increased structural integrity.
• Lower hitch pin, frame plate, and bearing size have been increased for longer life.

Robust Structures Design

• Push beams are through-width, not merely attached to side of frame.
• In corner dozing, stresses are transferred and absorbed through a larger portion of the frame.

Power Train

Move material more efficiently with improved power and control.

Steering and Transmission Integrated Control System (STIC™)

Experience maximum responsiveness and control with STIC that combines directional selection, gear selection and steering into a single lever.

• Simple side-to-side motion turns machine right or left, minimizing operator movements.
• Easy to operate finger controlled gear selection.
• Smoother, faster cycles and less operator fatigue through the use of low effort integrated controls.

Cat Planetary Powershift Transmission

Building your success begins with a best-in-class transmission designed specifically for mining applications.

• Consistent, smooth shifting and efficiency through integrated electronic controls that utilize Advanced Productivity Electronic Control Strategy (APECS).
• Long life and reliability through heat treat gear and metallurgy.
• Four forward and three reverse speeds to match your application.

Cat C18 ACERT Engine

Durability and efficiency at the heart of your 834K comes from the Cat C18 ACERT Engine. Optimum performance is built in through the use of a 6 cylinder, four-stroke design.

• Optimized performance and quick engine response with an electronic control module.
• Reliable efficiency with complete control over injection timing, duration and pressure with Mechanically Actuated Electronic Unit Injection (MEUI™).
• Extended engine life and improved fuel efficiency with reduced rated speed.
• Option of: Tier 4 Final/Stage IV emissions standards, Tier 3 equivalent, or Tier 2 equivalent.

Impeller Clutch Torque Converter (ICTC) and Rimpull Control System (RCS)

Lower your operating costs utilizing advanced ICTC and RCS for modulated rimpull.

• Reduce tire slippage and wear by modulating rimpull from 100 to 25 percent while depressing left pedal. After 25 percent rimpull is achieved the left pedal applies the brake.
• Reduce the potential for wheel slippage without reducing hydraulic efficiency with RCS.
• Improve fuel efficiency in certain applications with our lock-up clutch torque converter providing direct drive.

Operator Station

Best-in-class operator comfort and ergonomics.

Your operators can work more efficiently and stay comfortable with our customer-inspired cab features.

Entry and Exit

Enter and exit the cab easily and safely with these newly designed, ergonomic features.

• Fold up STIC steer/armrest.
• Reduced angles on access stairways.
• Standard stairway lighting.

Cat Comfort Series III Seat

Enhance comfort and reduce operator fatigue with Cat Comfort Series III seat.

• Mid back design and extra thick, contoured cushions.
• Air suspension system.
• Easy-to-reach seat levers and controls for six way adjustments.
• Seat-mounted implement pod and STIC steer that moves with the seat.
• 76 mm (3 in) wide retractable seat belt.

Control Panel

Ergonomic placement of switches and Information display keep your operators comfortable all day every day.

• Large backlit membrane switches feature LED activation indicators.
• Switches feature ISO symbols for quick function identification.
• Two position rocker switch activates the electro hydraulic park brake.

Environment

Your operator’s productivity is enhanced with our clean, comfortable cab environment.

• Experience reduced vibrations from isolation cab mounts and seat air suspension.
• Maintain desired cab temperature with automatic temperature controls.
• Pressurized cab with filtered air.
• Sound level reduced to a quiet 71 dB(A) when equipped with the sound suppression package.
• Convenient floor storage tray/lunch box.

Technology Solutions

Greater productivity through Integrated Electronic Systems.

The 834K electronic systems have been completely integrated to function as one machine. This integration creates a smart machine and more informed operator, maximizing the productivity of both.

Cat Product Link™

Cat Product Link allows remote monitoring of equipment to improve overall fleet management effectiveness. Events and diagnostic codes, as well as hours, fuel, idle time and other information are transmitted to a secure web based application, VisionLink™. VisionLink includes powerful tools to convey information to users and dealers, including mapping, working and idle time, fuel level and more.

VIMS™ 3G

We have worked hard to help our customers and operators perform at their best through our Vital Information Management System (VIMS 3G).

• Easy-to-view graphical information display features a large touch screen interface.
• Intuitive operation and easy navigation with our enhanced user interface.
• Decrease service time by keeping operators informed about machine system malfunction or operation.

Cat MineStar System

Work more productively.

Cat MineStar System is the industry’s broadest suite of integrated mine operations and mobile equipment management technologies, configurable to suit your operation’s needs. Its capability sets – Fleet, Terrain, Detect, Health and Command – contain a range of technologies that let you manage everything from fleet assignment and condition monitoring to remote and autonomous control. The 834K can take advantage of many of these advanced technologies, some of which are standard out of the factory.

Fleet

Fleet provides comprehensive, real-time machine tracking, assignment and productivity management, giving you a comprehensive overview of all operations from anywhere in the world.

Terrain for Loading

Terrain with your 834K enables high-precision management of loading operations through the use of guidance technology. It increases 834K productivity and provides you real-time feedback for improved efficiency.

Detect

Detect helps increase operator awareness, enhancing safety at your operation. It includes a range of capabilities designed to assist the operator with areas of limited visibility around fixed and mobile equipment.

Health

Health delivers critical event-based machine condition and operating data for your entire fleet. It includes comprehensive equipment health and asset monitoring capabilities, with a wide range of diagnostic, analytic and reporting tools.

Safety

Making your safety our priority.

We are constantly introducing features on our machines in an effort to enhance safety for the operator.

Machine Access

• Left and right hand stairs with 45 degree angle enhance safety for operators getting on and off the 834K.
• Continuous walkway with non-skid surfaces are designed into the service areas.
• Maintain three points of contact at all times through ground level or platform accessible service areas.

Visibility

• Optional heated mirrors ensure enhanced visibility for safe operation.
• Standard Cat Vision or optional Cat Detect with radar increase operator awareness around the machine.
• LED lights provide excellent workspace visibility.
• Optional cab mounted LED warning beacons.

Operator Environment

• Reduced vibrations to the operator with isolated cab mounts and seat mounted implement and steering controls.
• Low interior sound levels.
• Pressurized cab with filtered air.
• Standard 76 mm (3 in) seat belts on the operator seat.

Sustainability

Sustainability is designed and built into our 834K’s features.

• Engine Idle Shutdown and Auto Idle Kickdown can help you save fuel by avoiding unnecessary idling.
• Reduce waste generation with our maintenance free batteries.
• The 834K is built for multiple lives. To assist with maximizing machine life, Caterpillar provides a number of sustainable options such as our Reman and Certified Rebuild programs. In these programs, reused or remanufactured components can deliver cost savings of 40 to 70 percent, which lowers operating cost.
• Caterpillar offers retrofit packages to bring new features to older machines, maximizing your resource. And, when you go through the Cat Certified Rebuild program, these retrofit kits are part of the rebuild process.

Productivity

Designed to meet the needs of your application.

Purpose Built Front Linkage

Cat wood chip and coal scoops have the unique capability of maximizing your production by both dozing and carrying a load with each pass. A purpose built hydraulic system is optimized for use with this work tool to maximize machine productivity and efficiency. Dual lift cylinders provide hydraulic lift capacity matched to the demands of the application.

Oscillating Rear Axle

The fixed front axle and oscillating rear axle ensures four-wheel ground contact for optimum traction and stability. The front axle is rigidly mounted to the front loader frame, while the rear axle is allowed to oscillate. This configuration allows the operator’s view of the scoop to remain constant as the rear axle oscillates enabling the operator to maintain a smooth and properly graded work area in any underfoot conditions.

Operating Costs

Save time and money by working smart.

The 834K has several features to achieve greater fuel efficiency:

• Positive Flow Control Hydraulics – Provides only the hydraulic flow required by the implement and steering systems for improved fuel efficiency and greater rimpull.
• ACERT Engine – Advanced engine controls maximizes power and efficiency.
• Engine Idle Shutdown – Automatic engine and electrical system shutdown conserves fuel.
• Lock-up Torque Converter – Transfers more power to the ground and optimizes fuel efficiency in all applications.
• Advanced Productivity Electronic Control Strategy (APECS) – All new APECS transmission controls provides greater momentum on grades and fuel savings by carrying that momentum through the shift points.

Machine configuration, operator technique, and job site layout can impact fuel consumption.

• Machine Configuration – Select the correct work tool and tire type based on machine application. Ensure proper inflation pressures.
• Idle – Set the parking brake to engage Engine Idle Management System.

Serviceability

Enabling high uptime by reducing your service time.

We can help you succeed by ensuring your 834K has design features to reduce your downtime.

• Safe and convenient service with ground level or platform access and grouped service points.
• Swing-out doors on both sides of the engine compartment provide easy access to important daily service checks.
• Ecology drains for ease of service and prevention of spilling potential environmental contaminants.
• Reduce downtime with VIMS system notifications so your operators and technicians can resolve any problems before failure.
• Ground level access to transmission control valves.

Customer Support

Your Cat dealers know how to keep your machines productive.

Legendary Cat Dealer Support

A valued partner, your Cat dealer is available whenever you need them.

• Preventive maintenance programs and guaranteed maintenance contracts.
• Best-in-class parts availability.
• Improve your efficiency with operator training.
• Genuine Cat Remanufactured parts.

ELECTRICAL

 Alarm, back-up

 Alternator (100 amp)

 Batteries, maintenance-free

 Deutsch terminal connectors

 Electrical system (24V)

 Lighting system, halogen (front and rear), access stairway

 Starter, electric (heavy-duty)

 Starting receptacle for emergency starts

OPERATOR ENVIRONMENT

 Air conditioner

 Cab, sound suppressed and pressurized

 Internal four-post rollover protective structure (ROPS/FOPS), radio ready (entertainment) includes antenna, speakers and converter (12V, 15 amp), 12V power port, tinted glass

 Cigar lighter (12V, 15 amp) and ashtray

 Coat hook

 Electro-Hydraulic tilt, tip controls

 Heater and defroster

 Horn, electric

 Light, cab (dome)

 Lock-up clutch disable switch

 Lunchbox and beverage holders

 Monitoring system (VIMS 3G)

 Action alert system, three category

 Instrumentation, gauges:<br>– Engine coolant temperature<br>– Fuel level<br>– Hydraulic oil temperature<br>– Speedometer/tachometer<br>– Transmission oil temperature<br>– Instrumentati

 Mirrors, rearview (externally mounted)

 Rimpull select switch

 Seat, Comfort Series (cloth), air suspension

 Seat belt, retractable, 76 mm (3 in) wide

 STIC control system with steering lock

 Tilt and lift control system lock

 Transmission gear indicator

 Wet-arm wipers/washers (front and rear)

 Intermittent front wiper

POWER TRAIN

 Brakes, full hydraulic, enclosed, wet-disc

 Multiple disc service brakes

 Case drain filters

 Demand fan

 Engine, Cat C18 MEUI with ACERT Technology, ATAAC, ADEM™ IV controller

 Fuel priming pump (electric)

 Parking brake

 Precleaner, engine air intake

 Radiator, Next Generation Modular

 Radiator (NGMR)

 Separated cooling system

 Starting aid (ether) automatic

 Throttle lock

 Torque converter, impeller clutch with lock-up control system and rimpull control system (switch and dial in cab)

 Transmission, planetary, autoshift (4F/3R)

OTHER STANDARD EQUIPMENT

 Doors, service access (locking)

 Engine, crankcase, 500 hour interval with CH-4 oil

 Grouped Electronic Clutch Pressure

 Control, remote mounted pressure taps

 Hitch, drawbar with pin

 Hood, metallic with lockable service doors

 Hydraulic oil cooler

 Muffler (under hood)

 Oil sampling valves

 Stairway, left side (rear access)

 Steering, load sensing

 Vandalism protection caplocks

 Venturi stack

 ±15 degree scoop tilt

TIRES, RIMS AND WHEELS

 A tire must be selected from the mandatory attachments section – base machine price includes a tire allowance

ANTIFREEZE

 Premixed 50 percent concentration of Extended Life Coolant with freeze protection to –34° C (–29° F)

POWER TRAIN

 –50° C (–58° F) antifreeze

 Engine oil change system, high speed, Wiggins

 Engine block heater 120V or 240V

 Engine compression brake

 Automatic retarding control (with engine compression brake)

 Axle oil cooler

 Second starter

 Jacket water heater

 Crankcase guards

OPERATOR ENVIRONMENT

 Cab precleaner

 AM/FM/CD/MP3 radio

 Satellite Sirius radio with Bluetooth

 LED warning strobe

 CB radio ready

 Window pull down visor

 Sound suppression

 Visor group – cab pull-down shade

 Cat Detect (rear object detection)

Cab precleaner

AM/FM/CD/MP3 radio

Satellite Sirius radio with Bluetooth

LED warning strobe

CB radio ready

Window pull down visor

Sound suppression

Visor group – cab pull-down shade

Cat Detect (rear object detection)

MISCELLANEOUS ATTACHMENTS

 Front and rear roading fenders

 Fast fill fuel system (Shaw-Aero)

 Cat Detect

 Halogen and HID lights

Front and rear roading fenders

Fast fill fuel system (Shaw-Aero)

Cat Detect

Halogen and HID lights

360° Exterior View 360° Interior View