| Operating Weight | |
|---|---|
| Rated power | 0-150 HP112 kW |
Wheel loaders have different torque requirements depending on working conditions. Komatsu SmartLoader Logic reads data from various sensors and vehicle controls to precisely control the torque output. This lowers the torque output during less demanding work, saving fuel. And because its seamless to the operator, it operates without decreasing production.
The HST provides quick travel response and aggressive drive into the pile. Full auto-shifting eliminates any gear shifting and kick-down operation to allow the operator to concentrate on the digging and loading. The HST also acts as a dynamic brake to slow the loader. This prolongs the life of the wet disc brakes.
The new variable speed control system is designed to adjust the operating speed for each working condition. S-mode reduces tire spin in slippery or snowy conditions. Auto-mode automatically optimizes the tractive effort for various working conditions. Max traction provides the full, 100%, tractive effort.
Creep mode limits the travel speed while still allowing for full hydraulic flow.
A new higher capacity heated, air suspension seat with suspension damper is now standard. The arm rest angle is fully adjustable for optimum operator comfort.
Operator’s ear noise level : 70 dB(A)
Dynamic noise level (outside): 107 dB(A)
The large cab is mounted with Komatsu’s unique ROPS/FOPS viscous mounts. The low-noise engine, hydraulically driven fan, and hydraulic pumps are mounted with rubber cushions, and the cab sealing is designed to provide a quiet, low-vibration, dustproof, and comfortable operating environment
Rear View Monitoring System (standard)
The operator can view the area directly behind the machine with a full color monitor that is located on the right side of the cab. This monitor can be set to be always on or only on when the loader goes into reverse. Visual guidelines can also be added to show the machine's travel path.
The Electronically Controlled Suspension System (ECSS) or ride control system uses an accumulator which absorbs some of the shock in the boom arm, giving the operator a much smoother ride. This reduces operator fatigue and reduces material spillage during load and carry operations. ECSS is speed sensitive, meaning that the boom won’t move during stationary digging. ECSS is standard on the WA270-7.
The multi-function mono lever with EPC control for 3rd spool is standard. It includes a forward-neutral-reverse switch for quick and easy travel. Third spool attachments can be set to continual or proportional control via the monitor panel allowing the operator to control the boom, bucket and attachment all with a single lever.
The operator can set the upper boom kickout from the cab.
The large gull-wing type engine doors are operated with low effort assisted by gas springs. The doors open in two steps for easy access to maintenance points. Large steps and hand holds are provided on each side of the frame to help access.
The large capacity cooling unit swings open for cleaning. It features wider spacing of cooling fins to reduce clogging.
Under most conditions, active regeneration will occur automatically with no effect on machine operation. In case the operator needs to disable active regeneration or initiate a manual stationary regeneration, this can be easily accomplished through the monitor panel.A soot level indicator is displayed to show how much soot is trapped in the KDPF.
| Model | Komatsu SAA6D107E-2* | |
| Type | Water-cooled, 4-cycle | |
| Aspiration | Turbo-charged, after-cooled, cooled EGR | |
| Number of cylinders | 6 | |
| Bore x stroke | 4.21" x 4.88" | 107 mm x 124 mm |
| Piston displacement | 408 in³ | 6.69 ltr |
| Governor | All-speed, electronic | |
| Horsepower: | ||
| Gross - SAE J1995 | 153 HP | 115 kW |
| Net - ISO 9249/SAE J1349 | 149 HP | 111 kW 149 HP |
| Rated rpm | 2000 rpm | |
| Max power - ISO 14396 @ 1900 rpm | 150 HP | 112 kW |
| 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 Interim and EU stage 3B emissions certified |
| Transmission | Hydrostatic, 1 pump, 2 motors with speed range select | |
| Travel Speed: | Forward | Reverse |
| 1st | 0.6 - 8.1 mph | 0.6 - 8.1 mph |
| 2nd | 8.1 mph | 8.1 mph |
| 3rd | 11.8 mph | 11.8 mph |
| 4th | 23.6 mph | 23.6 mph |
| Measured with 20.5-25 tires |
| Drive system | Four-wheel drive |
| Front | Fixed, semi-floating |
| Rear | Center-pin support, semi-floating, 20° total oscillation |
| Reduction gear | Spiral bevel gear |
| Differential gear | Torque proportioning |
| Final reduction gear | Planetary gear, single reduction |
| Service brakes | Hydraulically actuated, wet disc brakes actuate on four wheels |
| Parking brake | Wet, multi-disc brake on transfer output shaft |
| Emergency brake | Parking brake is commonly used |
| Type | Articulated type, fully-hydraulic power steering | |
| Steering angle | 38° each direction (40° to max end stop) | |
| Minimum turning radius at the center of outside tire | 17' 0" | 5175 mm |
| Steering system: | ||
| Hydraulic pump | Piston pump, in common with loader control | |
| Capacity (at rated rpm) | 39.6 U.S. gal/min | 150 ltr/min |
| Relief valve setting | 3,000 psi | 20.6 MPa 210 kgf/cm² |
| Hydraulic cylinders: | ||
| Type | Double-acting, piston type | |
| Number of cylinders | 2 | |
| Bore x stroke | 2.76" x 17.8" | 70 mm x 453 mm |
| Loader control: | ||
| Hydraulic pump | Piston pump, in common with steering system | |
| Capacity (at rated rpm) | 39.6 U.S. gal/min | 150 ltr/min |
| Relief valve setting | 4,555 psi | 320 kg/cm² 31.4 MPa |
| Hydraulic cylinders: | ||
| Type | Double-acting, piston type | |
| Number of cylinders: | bore x stroke: | bore x stroke: |
| Boom cylinder / 2 | 4.3" x 28.2" | 110 mm x 717 mm |
| Bucket cylinder / 1 | 5.5" x 18.9" | 140 mm x 480 mm |
| 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 | 5.7 sec | |
| Dump | 2.0 sec | |
| Lower (empty) | 3.2 sec |
| Cooling system | 7.4 U.S. gal | 28 ltr |
| Fuel tank | 49.1 U.S. gal | 186 ltr |
| Engine | 6.7 U.S. gal | 23 ltr |
| Hydraulic system | 20.6 U.S. gal | 78 ltr |
| Axle front | 4.9 U.S. gal | 18.5 ltr |
| Axle rear | 4.8 U.S. gal | 18 ltr |
| Transfer case | 2.1 U.S. gal | 7 ltr |
KOMATSU
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Service Tel : (8621)-6841-4567
E-mail :
Web Site : https://home.komatsu/en/
Address :
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