KOMATSU PC138US LC-11
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2024
Komastu
PC138US LC-11
New
Ontario
Quick and powerful
Impressive fuel efficiency
Spacious and comfortable
Designed for exceptional stability
Engine
| Model | Komatsu SAA4D95LE-7* |
| Type | Water-cooled, 4-cycle, direct injection |
| Aspiration | Variable flow, turbocharged, air-to-air aftercooled |
| Number of cylinders | 4 |
| Bore | 3.74 in |
| Stroke | 4.53 in |
| Piston displacement | 199 in³ |
| Horsepower: | |
| SAE J1995 / Gross | 97.3 HP |
| ISO 9249 / SAE J1349 / Net | 97.2 HP |
| Rated rpm | 2,050 |
| Fan at maximum speed /Net | 90.9 HP |
| Fan drive method for radiator cooling | Mechanical with viscous clutch |
| Governor | All-speed control, electronic |
*EPA Tier 4 Final emissions certified
Hydraulics
Type: HydrauMind (Hydraulic Mechanical Intelligence) system, closed-center system with load sensing valve and pressure compensated valve
| Number of selectable working modes | 6 |
| Main pump: | |
| Type | Variable capacity piston type |
| Pumps for | Boom, arm, bucket, swing, and travel circuits |
| Maximum flow | 64 US gpm |
| Hydraulic motors: | |
| Travel | 2 x piston motor with parking brake |
| Swing | 1 x piston motor with swing holding brake |
| Relief valve setting: | |
| Implement circuits | 5,050 psi |
| Travel circuit | 5,050 psi |
| Swing circuits | 4,240 psi |
| Pilot circuit | 470 psi |
| Maximum Auxiliary Flow at 3,553 psi* |
64 US gpm |
| Hydraulic cylinders / Number of cylinders: | bore x stroke x rod diameter |
| Boom / 2 | 4.1 x 41.5 x 2.76 in |
| Arm / 1 | 4.3 x 46.3 x 2.95 in |
| Bucket / 1 | 3.7 x 34.8 x 2.56 in |
* Auxiliary flow is adjustable through the monitor.
Drives and Brakes
| Steering control | Two levers with pedals |
| Drive method | Fully hydrostatic |
| Maximum drawbar pull | 27,560 lbf. |
| Gradeability | 70%, 35° |
| Maximum travel speed: | |
| High | 3.2 mph |
| Low | 1.8 mph |
| Service brake | Hydraulic lock |
| Parking brake | Wet, multiple-disc |
Swing System
| Driven by | Hydraulic motor |
| Swing reduction | Planetary gear |
| Swing circle lubrication | Grease-bathed |
| Swing lock | Wet, multiple-disc brake |
| Swing speed | 11.0 rpm |
| Swing torque | 21,627 ft.-lbs. |
Undercarriage
| Center frame | X-leg frame |
| Track frame | Box-section |
| Track type | Sealed track |
| Track adjuster | Hydraulic |
| Number of shoes | 46 each side |
| Number of carrier rollers | 2 each side |
| Number of track rollers | 8 each side |
Coolant & Lubricant Capacity (Refilling)
| Fuel tank | 52.8 US gal |
| Coolant | 4.6 US gal |
| Engine | 3.0 US gal |
| Final drive, each side | 0.55 US gal |
| Swing drive | 0.7 US gal |
| Hydraulic tank | 18.2 US gal |
| DEF tank | 3.3 US gal |
Operating Weight (Approximate)
Operating weight includes 15 ft. 1 in one-piece boom, 8 ft. 2 in arm, SAE heaped 0.67 yd3 backhoe bucket, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment.
| Triple-Grouser | Operating Weight | Ground Pressure |
| 20 in | 34,563 lbs. | 6.57 psi |
| 24 in | 35,673 lbs. | 5.49 psi |
| 28 in | 35,114 lbs. | 4.77 psi |
Sound Performance
| Exterior – ISO 6395 | 101 dB(A) |
| Operator – ISO 6396 | 71 dB(A) |
ENGINE
- Air cleaner, double element with auto dust evacuator
- Cooling fan, viscous type
- Debris guards for radiator and oil cooler
- Engine, Komatsu SAA4D95LE-7
- Engine overheat prevention system
ELECTRICAL SYSTEM
- Alternator, 24 V/60 A
- Auto-decelerator
- Batteries, 2 x 12 V/72 Ah
- Electric horn
- Starting motor 24 V/4.5 kW
- Working light on boom
- Working lights on cab (2)
HYDRAULIC SYSTEM
- Boom holding valve
GUARDS AND COVERS
- Fan guard structure
- Handrails
- Pump/engine partition cover
UNDERCARRIAGE
- Shoe, 24" triple grouser
OPERATOR ENVIRONMENT
- 2 x 12 V power points
- 2 way multi-control valve
- 24 V - 12 V power converter
- Automatic A/C
- Auto idle shutdown function
- Auxiliary input jack
- Cab includes: antenna, AM/FM radio, floor mat, intermittent front windshield wiper and washer, large ceiling hatch, pull-up front window, removable lower windshield
- Foldable mirror (LH)
- Large high resolution LCD monitor
- Lock lever
- Mirror (Rear)
- Operator identification function
- Operator protective top guard, OPG level 1 (ISO 10262)
- Rear view monitor system
- ROPS cab (ISO 12117-2)
- Seat belt, 3"
- Suspension seat
- Swing holding brake
OTHER
- Counterweight (total mass), 7,630 lb
- Equipment management monitoring system
- KOMTRAX®
- Pattern change valve
- Rear reflector
- Travel alarm
HYDRAULIC SYSTEM
- Hydraulic control unit - 1 additional actuator (+ 1 Hydraulics) with one and two-way flow
GUARDS AND COVERS
- Cab guard
— Full front guard, OPG level 1 (ISO 10262)
— Full front guard, OPG level 2 (ISO 10262)
— Bolt-on top guard, OPG level 2 (ISO 10262)
UNDERCARRIAGE
- Extended track frame steps for 28" tracks
- Shoes
— 20" triple grouser
— 28" triple grouser
— 20" rubber roadliner
OPERATOR ENVIRONMENT
- Sunvisor
WORK EQUIPMENT
- Arms
— 8'2" arm assembly
— 8'2" arm assembly with piping
— 9'10" arm assembly
— 9'10" arm assembly with piping - Booms
— 15'1" boom assembly
— 15'1" boom assembly with piping - Blade
— 8'6" wide blade
Features and benefits
Short implement swing radius
Get greater clearance when space is limited with a higher boom raise angle than our standard excavator that reduces the minimum front implement swing radius.
Short tail swing radius
Get more done in confined areas with the short tail swing radius that allows the machine to work in more spaces than our conventional excavator.
Rounded cab design with sliding door
High maneuverability is achieved through the purpose-built cabs that swings within the same radius as the counterweight. The sliding cab door allows operators to easily enter and exit when space is limited.
Stable platform
The compact counterweights provide exceptional lifting capability and stability providing a comfortable, confident operating experience.
Arm quick return valve
Help improve efficiency with the quick return valve that directs additional oil through a second line directly back to the tank when the arm is extended, helping to reduce back pressure and fuel consumption.
Efficient hydraulic system
For quick response to operator demands, the closed-center loading system (CLSS) helps improve fuel efficiency. Pilot proportional control (PPC) hydraulics and optional proportional joysticks provide exceptional control.