Large Wheel Dozers

834K Scoops Wheel Dozer

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834K Scoop Wheel Dozer
834K Coal Scoop Wheel Dozer
834K Chip Scoop Wheel Dozer
834K Chip Scoop Wheel Dozer
US
Metric

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

Engine Model
Cat® C18 ACERT™
Net Power
496.00 hp
370.00 kW
Bore
5.70 in
145.00 mm
Stroke
7.20 in
183.00 mm
Displacement
1105.00 in3
18.10 L
Torque Rise
52%
Emissions
U.S. EPA Tier 4 Final/EU Stage IV, Tier 3 Equivalent, or Tier 2 Equivalent
Gross – SAE J1349
562.00 hp
419.00 kW
Net - SAE J1349
496.00 HP
370.00 kW
Peak Power Speed
1,500 rpm
Peak Torque - 1,300 rpm
2092.00 ft·lbf
2836.00 N·m
Rated Speed
1,900 rpm

Weights

Operating Weight
112838.00 lb
51290.00 kg

Operating Specifications

Coal Scoop Operating Weight
112428.00 lb
51103.00 kg
Chip Scoop Operating Weight
112838.00 lb
51290.00 kg

Transmission

Direct Drive Forward 1
Lock-up disabled
Direct Drive Forward 2
7.70 mph
12.40 km/h
Direct Drive Forward 3
13.70 mph
22.10 km/h
Direct Drive Forward 4
23.90 mph
38.50 km/h
Direct Drive Reverse 1
4.50 mph
7.20 km/h
Direct Drive Reverse 2
8.10 mph
13.00 km/h
Direct Drive Reverse 3
14.30 mph
23.00 km/h
Forward 1
4.20 mph
6.80 km/h
Forward 2
7.20 mph
11.60 km/h
Forward 3
12.60 mph
20.30 km/h
Forward 4
22.00 mph
35.40 km/h
Reverse 1
4.20 mph
6.80 km/h
Reverse 2
7.60 mph
12.20 km/h
Reverse 3
13.30 mph
21.40 km/h
Transmission Type
Cat planetary power shift

Brakes

Brakes
ISO 3450:2011

Axles

Front
Fixed
Rear
Trunnion
Oscillation Angle
±13°

Dimensions (Approximate)

Height - Top of Exhaust Stack
14.80 ft
4498.00 mm
Length - With Coal Scoop on Ground
39.30 ft
11971.00 mm
Length - With Chip Scoop on Ground
39.30 ft
11974.00 mm
Height to Top of Cab
13.70 ft
4184.00 mm
Height to Top of Hood
10.90 ft
3334.00 mm
Height - Top of Air Cleaner
12.80 ft
3895.00 mm
Ground to Center of Front Axle
3.20 ft
978.00 mm
Centerline of Front Axle to Hitch
7.50 ft
2275.00 mm
Centerline of Rear Axle to Edge of Bumper
10.50 ft
3187.00 mm
Wheelbase
14.90 ft
4550.00 mm
Length - Front of Tire
28.40 ft
8715.00 mm
Ground Clearance
1.70 ft
531.00 mm

Service Refill Capacities

Diesel Exhaust Fluid Tank*
8.70 gal
33.00 L
Fuel Tank
209.50 gal
793.00 L
Hydraulic System (tank only)
37.00 gal
140.00 L
Hydraulic System Factory Fill
63.40 gal
240.00 L
Cooling System
31.70 gal
120.00 L
Crankcase
15.90 gal
60.00 L
Transmission
31.70 gal
120.00 L
Differentials and Final Drives – Front
49.10 gal
186.00 L
Differentials and Final Drives – Rear
49.10 gal
186.00 L

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)
Cylinders, Double Acting - Lift, Bore and Stroke
170.0 mm × 1107 mm (6.7 in × 43.6 in)
Lift/Tilt System
Variable displacement piston
Lift/Tilt System - Circuit
Pilot operated LS valve with EH
Maximum Flow at 1,900 rpm
153.00 gal/min
582.00 l/min
Pilot Maximum Flow
13.70 gal/min
52.00 l/min
Pilot Relief Valve Setting
580.00 psi
4000.00 kPa
Pilot System
Variable displacement piston
Relief Valve Setting - Lift/Tilt
4206.00 psi
29000.00 kPa

Sound Performance: Tier 4 Final/Stage IV – Standard

Operator Sound Level (ISO 6396)
73.00 dB(A)
73.00 dB(A)
Machine Sound Level (ISO 6395)
111.00 dB(A)
111.00 dB(A)

Sound Performance: Tier 4 Final/Stage IV – Suppression

Operator Sound Level (ISO 6396)
72.00 dB(A)
72.00 dB(A)
Machine Sound Level (ISO 6395)
109.00 dB(A)
109.00 dB(A)

Hydraulic System – Steering

Maximum Flow
65.80 gal/min
250.00 L/min
Relief Valve Setting – Steering
3495.00 psi
24100.00 kPa
Steering Cycle Time (high idle)
3.10 sec
3.10 sec
Steering Cycle Time (low idle)
5.70 sec
5.70 sec
Steering System – Circuit
Pilot, load sensing
Steering System – Pump
Piston, variable displacement
Total Steering Angle
86°

Scoops

Coal Scoop Carry Capacity
30.00 yd³
22.90 m³
Coal Scoop Doze Capacity
60.00 yd³
45.90 m³
Chip Scoop Carry Capacity
35.00 yd³
26.80 m³
Chip Scoop Doze Capacity
70.00 yd³
53.50 m³

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.

Transmission

Note
Travel speeds based on 35/65-R33 tire.

Hydraulic System - Lift/Dump/Tilt

Cylinders, Double Acting - Tilt, Bore and Stroke
152.4 mm × 953 mm (6.0 in × 37.5 in)

Service Refill Capacities

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.
Note
*Only applicable to Tier 4 Final/Stage IV equipped machines.

Sound Performance: Tier 2 Equivalent/Stage II – Standard

Operator Sound Level (ISO 6396)
81.00 dB(A)
81.00 dB(A)
Machine Sound Level (ISO 6395)
112.00 dB(A)
112.00 dB(A)

Sound Performance: Tier 2 Equivalent/Stage II – Suppression

Operator Sound Level (ISO 6396)
81.00 dB(A)
81.00 dB(A)
Machine Sound Level (ISO 6395)
109.00 dB(A)
109.00 dB(A)

Sound Performance - Tier 4 Final/Stage IV - Standard

Note (1)
Der Schalldruckpegel am Fahrerohr wurde nach den in ISO 6396:2008 vorgegebenen Prüfverfahren und -bedingungen gemessen.
– Die Messung wurde bei 70 Prozent der maximalen Drehzahl des Motorlüfters durchgeführt.
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)
Der Schallleistungspegel der Maschine wurde nach den Prüfverfahren und -bedingungen gemessen, wie sie in ISO 6395:2008 festgelegt sind.
– Die Messung wurde bei 70 Prozent der maximalen Drehzahl des Motorlüfters durchgeführt.

Sound Performance - Tier 4 Final/Stage IV: 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.
Note (3)
Der Schallleistungspegel der Maschine wurde nach den Prüfverfahren und -bedingungen gemessen, wie sie in ISO 6395:2008 festgelegt sind.
– Die Messung wurde bei 70 Prozent der maximalen Drehzahl des Motorlüfters durchgeführt.

Sound Performance - Tier 2 Equivalent/Stage II: Standard

Note (1)
Der Schalldruckpegel am Fahrerohr wurde nach den in ISO 6396:2008 vorgegebenen Prüfverfahren und -bedingungen gemessen.
– Die Messung wurde bei 70 Prozent der maximalen Drehzahl des Motorlüfters durchgeführt.
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 2 Equivalent/Stage II: Suppression

Note (1)
Der Schalldruckpegel am Fahrerohr wurde nach den in ISO 6396:2008 vorgegebenen Prüfverfahren und -bedingungen gemessen.
– Die Messung wurde bei 70 Prozent der maximalen Drehzahl des Motorlüfters durchgeführt.
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)
Der Schallleistungspegel der Maschine wurde nach den Prüfverfahren und -bedingungen gemessen, wie sie in ISO 6395:2008 festgelegt sind.
– Die Messung wurde bei 70 Prozent der maximalen Drehzahl des Motorlüfters durchgeführt.

Dimensions (Approximate)

Height - Edge of Retracted Scoop
7.40 ft
2250.00 mm
Height - Edge of Dumped Scoop
5.00 ft
1520.00 mm
Dump Angle at Full Lift Height
64 deg

Scoops

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.

Engine

Engine Model
C18 Cat®
Net Power
496.00 HP
370.00 kW
Bore
5.70 in
145.00 mm
Stroke
7.20 in
183.00 mm
Displacement
1105.00 in³
18.10 l
Emissions
U.S. EPA Tier 4 Final/EU Stage IV, Tier 3 Equivalent, or Tier 2 Equivalent
Gross - SAE J1349
562.00 HP
419.00 kW
Peak Power Speed
1500/min
Rated Speed
1,900/min
Torque Rise
52%

Transmission

Direct Drive - Forward 1
Lock-up disabled
Direct Drive - Forward 2
7.70 mile/h
12.40 km/h
Direct Drive - Forward 3
13.70 mile/h
22.10 km/h
Direct Drive - Forward 4
23.90 mile/h
38.50 km/h
Direct Drive - Reverse 1
4.50 mile/h
7.20 km/h
Direct Drive - Reverse 2
8.10 mile/h
13.00 km/h
Direct Drive - Reverse 3
14.30 mile/h
23.00 km/h
Forward - 1
4.20 mile/h
6.80 km/h
Forward - 2
7.20 mile/h
11.60 km/h
Forward - 3
12.60 mile/h
20.30 km/h
Forward - 4
22.00 mile/h
35.40 km/h
Reverse - 1
4.20 mile/h
6.80 km/h
Reverse - 2
7.60 mile/h
12.20 km/h
Reverse - 3
13.30 mile/h
21.40 km/h
Transmission Type
Cat planetary power shift

Brakes

Brakes
ISO 3450: 2011

Axles

Front
Fixed
Rear
Trunnion
Oscillation Angle
±13°

Weights

Operating Weight
112838.00 lb
51290.00 kg

Service Refill Capacities

Cooling System
31.70 gal (US)
120.00 l
Crankcase
15.90 gal (US)
60.00 l
Transmission
31.70 gal (US)
120.00 l
Diesel Exhaust Fluid Tank*
8.70 gal (US)
33.00 l
Differential - Final Drives - Front
49.10 gal (US)
186.00 l
Differential - Final Drives - Rear
49.10 gal (US)
186.00 l
Fuel Tank
209.50 gal (US)
793.00 l
Hydraulic System - Tank Only
37.00 gal (US)
140.00 l
Hydraulic System Factory Fill
63.40 gal (US)
240.00 l

Sound Performance - Tier 4 Final/Stage IV - Standard

Machine Sound Level (ISO 6395)
111.00 dB(A)
111.00 dB(A)
Operator Sound Level (ISO 6396)
73.00 dB(A)
73.00 dB(A)

Sound Performance - Tier 4 Final/Stage IV: Suppression

Machine Sound Level (ISO 6395)
109.00 dB(A)
109.00 dB(A)
Operator Sound Level (ISO 6396)
72.00 dB(A)
72.00 dB(A)

Dimensions (Approximate)

Centerline of Rear Axle to Edge of Bumper
10.50 ft
3187.00 mm
Ground Clearance
1.70 ft
531.00 mm
Height - Top of Cab
13.70 ft
4184.00 mm
Height - Top of Hood
10.90 ft
3334.00 mm
Wheel Base
14.90 ft
4550.00 mm

Hydraulic System - Steering

Maximum Flow
65.80 gal/min
250.00 l/min
Relief Valve Setting - Steering
3495.00 psi
24100.00 kPa
Steering Cycle Times - High Idle
3.10 s
3.10 s
Steering Cycle Times - Low Idle
5.70 s
5.70 s
Steering System - Circuit
Pilot, load sensing
Steering System - Pump
Piston, variable displacement
Total Steering Angle
86°

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.

Service Refill Capacities

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.

Sound Performance - Tier 2 Equivalent/Stage II: Standard

Machine Sound Level (ISO 6395)
112.00 dB(A)
112.00 dB(A)
Operator Sound Level (ISO 6396)
81.00 dB(A)
81.00 dB(A)

Sound Performance - Tier 2 Equivalent/Stage II: Suppression

Machine Sound Level (ISO 6395)
109.00 dB(A)
109.00 dB(A)
Operator Sound Level (ISO 6396)
81.00 dB(A)
81.00 dB(A)

Transmission

Note
Travel speeds based on 35/65-R33 tire.
Features

Move More with Less Fuel

Long Term Value and Durability

Built to Perform

Work in Comfort

Integrated Cat® Technologies

Technology that Gets Work Done

Safety First

Reduce Environmental Impact

Achieve Greater Productivity

Save on Fuel Costs

Save on Service and Maintenance

Top-Tier Service and Support

Sales Features

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.
Standard Equipment
  • NOTE
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • 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, 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)
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
    • 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