834K Scoops

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Overview

Cat Wheel Dozers are designed with durability built in, ensuring maximum availability through multiple life cycles. With optimized performance and simplified serviceability, our machines allow you to support your job site efficiently and safely while lowering owning and operating costs. Introduced in the mid-1960’s, the 834 has been the industry leader for almost 50 years. Focused on helping our customers succeed, we have continued to build upon each new series. The 834K continues our legacy of reliability, performance, safety, operator comfort, serviceability, and efficiency.

Engine

Units:
Engine Model Cat® C18 ACERT™ Cat® C18 ACERT™ Less
Net Power 496.0 hp 370.0 kW Less
Bore 5.7 in 145.0 mm Less
Stroke 7.2 in 183.0 mm Less
Displacement 1105.0 in3 18.1 L Less
Torque Rise 52% 52% Less
Emissions U.S. EPA Tier 4 Final/EU Stage IV, Tier 3 Equivalent, or Tier 2 Equivalent U.S. EPA Tier 4 Final/EU Stage IV, Tier 3 Equivalent, or Tier 2 Equivalent Less
Gross – SAE J1349 562.0 hp 419.0 kW Less
Net – SAE J1349 496.0 hp 370.0 kW Less
Peak Power Speed 1,500 rpm 1,500 rpm Less
Peak Torque @ 1,300 rpm 2092.0 lbf-ft 2836.0 N·m Less
Rated Speed 1,900 rpm 1,900 rpm Less

Transmission

Direct Drive Forward 1 Lock-up disabled Lock-up disabled Less
Direct Drive Forward 2 7.7 mph 12.4 km/h Less
Direct Drive Forward 3 13.7 mph 22.1 km/h Less
Direct Drive Forward 4 23.9 mph 38.5 km/h Less
Direct Drive Reverse 1 4.5 mph 7.2 km/h Less
Direct Drive Reverse 2 8.1 mph 13.0 km/h Less
Direct Drive Reverse 3 14.3 mph 23.0 km/h Less
Forward 1 4.2 mph 6.8 km/h Less
Forward 2 7.2 mph 11.6 km/h Less
Forward 3 12.6 mph 20.3 km/h Less
Forward 4 22.0 mph 35.4 km/h Less
Reverse 1 4.2 mph 6.8 km/h Less
Reverse 2 7.6 mph 12.2 km/h Less
Reverse 3 13.3 mph 21.4 km/h Less
Transmission Type Cat planetary power shift Cat planetary power shift Less
Note Travel speeds based on 35/65-R33 tire. Travel speeds based on 35/65-R33 tire. Less

Brakes

Brakes ISO 3450:2011 ISO 3450:2011 Less

Axles

Front Fixed Fixed Less
Rear Trunnion Trunnion Less
Oscillation Angle ±13° ±13° Less

Weights

Operating Weight 112838.0 lb 51290.0 kg Less

Service Refill Capacities

Cooling System 31.7 gal 120.0 L Less
Crankcase 15.9 gal 60.0 L Less
Transmission 31.7 gal 120.0 L Less
Diesel Exhaust Fluid Tank* 8.7 gal 33.0 L Less
Fuel Tank 209.5 gal 793.0 L Less
Hydraulic System (tank only) 37.0 gal 140.0 L Less
Hydraulic System Factory Fill 63.4 gal 240.0 L Less
Differentials and Final Drives – Front 49.1 gal 186.0 L Less
Differentials and Final Drives – Rear 49.1 gal 186.0 L Less
Note 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.
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.
Less
Note *Only applicable to Tier 4 Final/Stage IV equipped machines. *Only applicable to Tier 4 Final/Stage IV equipped machines. Less

Operating Specifications

Coal Scoop Operating Weight 112428.0 lb 51103.0 kg Less
Chip Scoop Operating Weight 112838.0 lb 51290.0 kg Less

Sound Performance: Tier 4 Final/Stage IV – Standard

Operator Sound Level (ISO 6396) 73.0 dB(A) 73.0 dB(A) Less
Machine Sound Level (ISO 6395) 111.0 dB(A) 111.0 dB(A) Less
Note 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.
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.
Less
Note 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. 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. Less
Note 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.
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.
Less

Sound Performance: Tier 4 Final/Stage IV – Suppression

Operator Sound Level (ISO 6396) 72.0 dB(A) 72.0 dB(A) Less
Machine Sound Level (ISO 6395) 109.0 dB(A) 109.0 dB(A) Less
Note 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.
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.
Less
Note 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. 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. Less
Note 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.
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.
Less

Dimensions (Approximate)

Height to Top of Exhaust Stack 14.8 ft 4498.0 mm Less
Length with Coal Scoop on Ground 39.3 ft 11971.0 mm Less
Length with Chip Scoop on Ground 39.3 ft 11974.0 mm Less
Height to Top of Cab 13.7 ft 4184.0 mm Less
Height to Top of Hood 10.9 ft 3334.0 mm Less
Height to Top of Air Cleaner 12.8 ft 3895.0 mm Less
Ground to Center of Front Axle 3.2 ft 978.0 mm Less
Centerline of Front Axle to Hitch 7.5 ft 2275.0 mm Less
Centerline of Rear Axle to Edge of Bumper 10.5 ft 3187.0 mm Less
Wheelbase 14.9 ft 4550.0 mm Less
Length to Front Tire 28.4 ft 8715.0 mm Less
Ground Clearance 1.7 ft 531.0 mm Less
Height to Edge of Retracted Scoop 7.4 ft 2250.0 mm Less
Height to Edge of Dumped Scoop 5.0 ft 1520.0 mm Less
Dump Angle at Full Lift Height 64 deg 64 deg Less

Scoops

Coal Scoop Carry Capacity 30.0 yd3 22.9 m3 Less
Coal Scoop Doze Capacity 60.0 yd3 45.9 m3 Less
Chip Scoop Carry Capacity 35.0 yd3 26.8 m3 Less
Chip Scoop Doze Capacity 70.0 yd3 53.5 m3 Less
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. 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. Less
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. 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. Less

Hydraulic System – Lift/Dump/Tilt

Cylinders, Double Acting: Left and Right Dump, Bore and Stroke 127 mm × 838 mm (5.0 in × 33.0 in) 127 mm × 838 mm (5.0 in × 33.0 in) Less
Cylinders, Double Acting: Lift, Bore and Stroke 170.0 mm × 1107 mm (6.7 in × 43.6 in) 170.0 mm × 1107 mm (6.7 in × 43.6 in) Less
Lift/Tilt System Variable displacement piston Variable displacement piston Less
Lift/Tilt System – Circuit Pilot operated LS valve with EH Pilot operated LS valve with EH Less
Maximum Flow at 1,900 rpm 153.0 gal/min 582.0 L/min Less
Pilot Maximum Flow 13.7 gal/min 52.0 L/min Less
Pilot Relief Valve Setting 580.0 psi 4000.0 kPa Less
Pilot System Variable displacement piston Variable displacement piston Less
Relief Valve Setting – Lift/Tilt 4206.0 psi 29000.0 kPa Less
Cylinders, Double Acting: Tilt, Bore and Stroke 152.4 mm × 953 mm (6.0 in × 37.5 in) 152.4 mm × 953 mm (6.0 in × 37.5 in) Less

Hydraulic System – Steering

Maximum Flow 65.8 gal/min 250.0 L/min Less
Relief Valve Setting – Steering 3495.0 psi 24100.0 kPa Less
Steering Cycle Time (high idle) 3.1 sec 3.1 sec Less
Steering Cycle Time (low idle) 5.7 sec 5.7 sec Less
Steering System – Circuit Pilot, load sensing Pilot, load sensing Less
Steering System – Pump Piston, variable displacement Piston, variable displacement Less
Total Steering Angle 86° 86° Less

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. 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. Less

Sound Performance: Tier 2 Equivalent/Stage II – Standard

Operator Sound Level (ISO 6396) 81.0 dB(A) 81.0 dB(A) Less
Machine Sound Level (ISO 6395) 112.0 dB(A) 112.0 dB(A) Less
Note 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.
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.
Less
Note 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. 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. Less
Note 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.
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.
Less

Sound Performance: Tier 2 Equivalent/Stage II – Suppression

Operator Sound Level (ISO 6396) 81.0 dB(A) 81.0 dB(A) Less
Machine Sound Level (ISO 6395) 109.0 dB(A) 109.0 dB(A) Less
Note 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.
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.
Less
Note 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. 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. Less
Note 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.
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.
Less

Efficiency

Delivering fuel efficiency you demand through integrated machine systems.


Structures

Best built for the toughest conditions.


Power Train

Move material more efficiently with improved power and control.


Operator Station

Best-in-class operator comfort and ergonomics.


Technology Solutions

Greater productivity through Integrated Electronic Systems.


Cat MineStar System

Work more productively.


Safety

Making your safety our priority.


Sustainability


Productivity

Designed to meet the needs of your application.


Operating Costs

Save time and money by working smart.


Serviceability

Enabling high uptime by reducing your service time.


Customer Support

Your Cat dealers know how to keep your machines productive.


834K Scoops Standard Equipment

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:
    – Engine coolant temperature
    – Fuel level
    – Hydraulic oil temperature
    – Speedometer/tachometer
    – Transmission oil temperature
    – Instrumentation, warning indicators
    – Axle/brake oil temperature (front/rear)
    – Brake oil pressure
    – Electrical system, low voltage
    – Engine intake/combustion air temperature
    – Engine oil pressure
    – Engine overspeed
    – Fuel pressure
    – Hydraulic oil filter status
    – Parking brake status
    – Transmission filter status
    – Cat Vision (rear vision camera)
  • 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)

834K Scoops Optional Equipment

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)

MISCELLANEOUS ATTACHMENTS
  • Front and rear roading fenders
  • Fast fill fuel system (Shaw-Aero)
  • Cat Detect
  • Halogen and HID lights