Komatsu WA500-8 Wheel Loader

Komatsu WA500-8 Wheel Loader

Operating Weight
Rated power 266 kW 357 HP
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Komatsu SmartLoader Logic

The WA500-8 features Komatsu SmartLoader Logic, which controls engine torque to match machine demands. For example, engine torque needs are higher for digging in V-shape loading, but lower when driving with an empty bucket. This system optimizes the engine torque for all applications to minimize fuel consumption. Komatsu SmartLoader Logic functions automatically and doesn’t interfere with operation, saving fuel without decreasing production.


Large-Capacity Torque Converter

The Komatsu-designed power train features a large capacity torque converter for optimum efficiency. The WA500-8 has improved efficiency in V-shape loading applications because the increased tractive effort does not require full throttle. The large capacity torque converter allows the loader to up-shift gears faster for improved acceleration and hill climbing ability. The WA500-8 achieves high gear ranges and maintains high travel speed when working in load-and-carry applications. In most applications, production is increased and fuel consumption is reduced, resulting in improved fuel efficiency.


New Operator Seat with Electronic Pilot Control (EPC) Levers

A new standard, heated, air-suspension seat provides enhanced support on rough roads and dampens machine vibrations, providing a more comfortable ride for the operator. An EPC-lever console is built into, and moves with, the seat. The angle of the armrest is fully adjustable for optimum operator comfort. A secondary F-N-R switch is incorporated in to work equipment lever configurations.

 

Dual-Mode Engine Power Select System

This wheel loader offers two selectable operating modes
— Power (P) and Economy (E).
P Mode: This mode provides maximum power output for hard- digging operation or hill climbing.
E Mode: This mode provides maximum fuel efficiency for general loading.

 

Standard Rear View Monitoring System

The dedicated, full-color monitor on the right side of the cab provides the operator with a rear view of the machine. This monitor can be always on or only on when the loader shifts into reverse. Guidelines provide the operator with visual cues for the width of the loader.

 

Remote Bucket and Boom Positioner

The operator can set the bucket angle and remote boom positioner from the cab. Both upper and lower boom limits are adjustable in the cab with the push of a button. The bucket positioner can store three horizontal settings, allowing the operator to easily change attachments without resetting the bucket level position.

 

Automatic Digging System

The new automatic digging system actuates the bucket tilt and lifting operations by sensing the pressure applied to the work equipment. This system can alleviate operator's fatigue and optimize bucket load. This system is activated through the LCD color monitor panel.

 

Operator Identification Function

An operator identification (ID) code can be set for each operator, and used to manage operation information of individual machines through KOMTRAX. Data sent from KOMTRAX can be used to analyze operation status by operator job, as well as by machine.

 

Swing-Out Type Cooling Fan and Wider Core Radiator

The cooling fan swings out for easier cleaning. The coolers feature wider-spaced cooling fins to reduce clogging.

 

Komatsu Integrated Load Meter System

The integrated load meter system displays information directly to the machine’s main monitor display and information is also available remotely via KOMTRAX.  Load sub total and cancel functions are performed with buttons integrated to the machine work levers.


Engine

Model
Komatsu SAA6D140E-7*
Type
Water-cooled, 4-cycle
Aspiration
Variable geometry turbo-charged, after-cooled, cooled EGR
Number of cylinders
6
Bore x Stroke140 mm x 165 mm5.51" x 6.50"
Piston displacement15.24 ltr930 in³
Governor
All-speed, electronic
Horsepower

SAE J1995 - Gross266 kW357 HP
ISO 9249 / SAE J1349 - Net263 kW353 HP
Rated rpm
1900 rpm
Fan drive method for radiator cooling
Hydraulic
Fuel system
Direct injection
Lubrication system:

Method
Gear pump, force-lubrication
Filter
Full-flow type
Air cleaner
Dry type with double elements and dust evacuator, plus dust indicator
*EPA Tier 4 Final emissions certified

Transmission

Torque converter
three-elements, one-stage, two-phase
Transmission
Full-powershift, planetary type
Travel speed: (Measured with 23.5-25 tires)ForwardReverse
1st gear7.5 km/h
4.7 mph
8.5 km/h
5.3 mph
2nd gear12.9 km/h
8.0 mph
12.9 km/h
8.0 mph
2nd gear (Lock-up clutch ON)13.1 km/h
8.1 mph
13.1 km/h
8.1 mph
3rd gear22.2 km/h
13.8 mph
24.7 km/h
15.3 mph
3rd gear (Lock-up clutch ON)23.7 km/h
14.7 mph
26.6 km/h
16.5 mph
4th gear35.5 km/h
22.1 mph
38.0 km/h
23.6 mph
4th gear (Lock-up clutch ON)37.3 km/h
23.2 mph
38.0 km/h
23.6 mph

Axles and Final Drives

Drive system
Four-wheel drive
Front
Fixed, full-floating
Rear
Center-pin support, full-floating, 20° total oscillation
Reduction gear
Spiral bevel gear
Differential gear
Conventional type
Final reduction gear
Planetary gear, single reduction

Brakes

Service brakes
Hydraulically actuated, wet disc brakes actuate on four wheels
Parking brake
Wet disc brake
Emergency brake
Parking brake is commonly used

Steering System

Type
Articulated type, fully-hydraulic power steering
Steering angle
36° (40° to max end stop)
Minimum turning radius at the center of outside tire7050 mm23' 2"

Hydraulic System

Steering system:

Hydraulic pump
Piston pump
Capacity at rated rpm120 ltr/min31.7 U.S. gal/min
Relief valve setting24.5 MPa / 250 kgf/cm²3,555 psi
Hydraulic cylinders:

Type
Double-acting, piston type.
Number of cylinders
2
Bore x stroke100 mm x 486 mm3.9" x 19.1"
Loader control:

Hydraulic pump
Piston pump
Capacity at rated rpm320 ltr/min84.8 U.S gal/min
Relief valve setting34.3 MPa / 350 kgf/cm²4,980 psi
Hydraulic cylinders:

Type
Double-acting, piston type.
Number of cylinders:Bore x Stroke:Bore x Stroke:
Boom cylinder / 2160 mm x 898 mm6.3" x 35.4"
Bucket cylinder / 1185 mm x 675 mm7.3" x 26.6"
Control valve
2-spool type
Control positions:

Boom
Raise, hold, lower, and float
Bucket
Tilt-back, hold, and dump
Hydraulic cycle time (rated load in bucket):

Raise
7.2 sec
Dump
1.7 sec
Lower (Empty)
4.2 sec

Service Refill Capacities

Cooling system110 ltr29.1 U.S. gal
Fuel tank473 ltr124.9 U.S. gal
Engine37 ltr9.8 U.S. gal
Hydraulic system337 ltr89.0 U.S. gal
Axle (each front and rear)95 ltr25.1 U.S. gal
Torque converter and transmission71 ltr18.8 U.S. gal
DEF tank36 ltr9.5 U.S. gal

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