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KOMATSU D71EXI-24

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Year

2024

Manufacturer

Komastu

Model

D71EXI-24

Condition

New

Location

Ontario

An all-around dozer that delivers

How do you make one of the industry’s most capable, dependable dozers even better? Make it smart. The industry’s newest slant-nosed, intelligent HST dozer features the latest IMC 2.0 capabilities, and patent-pending proactive dozing control with the ability to operate automatically 100% of the time.

  • IMC 2.0 built-in features to increase productivity
  • Increased overall travel speed and now 4 speed presets
  • Fast travel and steering response from HST drive

Engine

Model Komatsu SAA6D114E-6*
Type 4-cycle, water-cooled, direct injection
Aspiration Komatsu Variable Geometry Turbocharged, air-to-air aftercooled, cooled EGR
Number of cylinders 6
Bore x stroke 4.5 x 5.7 in
Piston displacement 540 in³
Governor All-speed and mid-range, electronic
Horsepower:  
    SAE J1995 - Gross 240 HP
    ISO 9249 / SAE J1349 - Net 237 HP
    Hydraulic fan at maximum speed 213 HP
Rated rpm 2,100 rpm
Fan drive type Hydraulic
Lubrication system:  
    Method Gear pump, force lubrication
    Filter Full-flow
*EPA Tier 4 Final emissions certified  

Hydrostatic transmission

Dual-path, hydrostatic transmission provides extensive speed changes up to 6.8 mph. The variable capacity travel motors allow the operator to select the optimum speed to match specific jobs. Travel control lock lever and neutral switch.

Travel speed
(quick shift mode)*
Forward Reverse
1st 0-2.4 mph 0-2.8 mph
2nd 0-4 mph 0-4.7 mph
2.5th 0-5.2 mph 0-5.8 mph
3rd 0-6.8 mph 0-6.8 mph
Travel speed
(variable mode)
0.5-6.8 mph 0.5-6.8 mph

*Quick shift speeds are adjustable in the monitor

Final drive

In-shoe mounted axial piston type travel motors with integrated two-stage planetary gear reduction. Compact in-shoe mount can reduce risk of damage by debris. Bolt-on sprocket for easy displacement.

Steering system

PCCS joystick control for all directional movements. Pushing the joystick forward results in forward machine travel, while pulling it backward reverses the machine. Simply tilt the joystick to the left or right to make a turn. Tilting the joystick fully to the left or right activates counter-rotation. HST eliminates steering clutches and brakes, providing smooth, powerful turns. Fully electronic control enables smooth operation. The PCCS utilizes shift buttons to increase and decrease speed.

Minimum turning radius  
D71EX-24/ D71EXi-24 10 ft. 2 in

Undercarriage

Suspension
Oscillating-type with equalizer bar and pivot shafts

Track roller frame
Monocoque, large section, durable construction

Rollers and idlers
Lubricated track rollers

Lubricated tracks
Parallel Link Undercarriage System (PLUS) with lubricated rotating bushings for extended system wear life and lower maintenance costs. Track tension is adjusted easily with grease gun.

  D71EX-24/
D71EXi-24
Number of track rollers (each side) 8
Type of shoes (standard) Single grouser
Number of shoes (each side) 45
Grouser height 2.6 in
Shoe width (standard) 24 in
Ground contact area 43 ft2
Ground pressure
(with dozer, ROPS cab)
(ISO 16754)
6.3 psi
Track gauge 7 ft. 3 in
Length of track on ground 10 ft. 8.9 in

Service refill capacities

Coolant 14.4 US gal
Fuel tank 116.0 US gal
Engine oil 8.1 US gal
Hydraulic ta 40.7 US gal
Final drive (each side) 2.6 US gal
DEF tank 5.3 US gal

Operating weight (approximate)

Tractor weight:
Including ROPS (ISO 3471) cab, U frame for PAT dozer, rated capacity of lubricant, coolant, full fuel tank, operator and standard equipment.

D71EXi-24 47,069 lbs.

Operating weight:
Including PAT dozer, ROPS (ISO 3471) cab, operator, standard equipment, rated capacity of lubricant, coolant and full fuel tank.

D71EX-24 49,824 lbs.
D71EXi-24 50,045 lbs.

Hydraulic system

Closed-Center Load Sensing System (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.
Hydraulic control unit:
All spool control valves externally mounted remote to the hydraulic tank. Piston-type hydraulic pump with capacity (discharge flow) of 62.3 US gpm at rated engine rpm.

Relief valve setting 4,177 psi
Hydraulic cylinders Double-acting, piston type
    (Number of cylinders) Bore
    Blade lift (2) 4.7 in
    Blade tilt (1) 5.1 in
    Blade angle (2) 4.3 in
Hydraulic oil capacity (refill):  
    Power angle tilt dozer 40.7 US gal
Control valves:  
3-spool control valve for Power Angle Tilt dozer  
    Positions:  
    Blade lift Raise, hold, lower, and float
    Blade tilt Right, hold, and left
    Blade angle Right, hold, and left
Additional control valve required for ripper  
    Positions:  
    Ripper lift Raise, hold, and lower
  • Air cleaner, double element with dust indicator
  • Air suspension seat with operator presence sensing system
  • Alternator, 24 V/90 A
  • Backup alarm
  • Batteries, 2 x 12 V/140 Ah
  • Closed engine hood
  • Color monitor, Liquid Crystal Display (LCD)
  • Decelerator/brake pedal (Single pedal)
  • Engine intake precleaner (Auto eject)
  • Expansion tank
  • Fuel prefilter with water separator
  • High mount foot rests
  • Hitch type drawbar
  • Hydraulically driven cooling fan with clean mode
  • Komatsu Diesel Particulate Filter (KDPF) with curved exhaust pipe
  • Locks, filler caps and covers
  • Radiator mask, swing up
  • Rear view monitor system
  • Starting motor, 11 kW/24 V
  • Steering system: HST system
  • Tie-offs
  • Track roller guard, center and end section
  • Track shoe assembly
    —Parallel Link Undercarriage System (PLUS) link
    24" single grouser shoe (EX)
    30" single grouser shoe (PX)
    36" single grouser shoe (PX wide)
  • Underguards:
    Oil pan and hydraulic pumps

    ROPS cab*

  • Air conditioner (A/C)
  • AUX-injack
  • Cab accessories
    —12 V x 2 power supply
    —Cup holder
    —Rear view mirror
  • Front pull hook
  • LED lights
  • Multifunction Audio
  • Work lamps (Front 4, rear 2)

* Dozer assembly and rear mounted equipment are not included in base machine standard equipment
** Cab meets ROPS (ISO 3471) and FOPS (ISO 3449) Level 2 standards

  • Hydraulics for ripper (EXI)
  • Long drawbar
  • Scoop holder
  • Tool kit
  • Track roller guard, full length

Multi-shank ripper (for D65EX/WX)

  • Weight (including hydraulic control unit): 3,924 lb
  • Beam length: 7'1"
  • Maximum lift above ground: 2'1"
  • Maximum digging depth: 1'11"

SUPPORT YOU CAN COUNT ON

FINANCING

Financing can be a major advantage for your operation, enabling you to get the equipment and service you need with terms to fit your business needs. Take advantage of competitive and flexible financial tools with Komatsu Financial.

MY KOMATSU

Access and manage all your machine telematics data, parts manuals, service manuals, software and parts ordering information from a single source anywhere, anytime.

DON'T OVERLOOK THE UNDERCARRIAGE

Keeping the undercarriage in good working conditions cn significantly minimize repair expenses and lower per-hour operating costs.

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