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Excavators - PC138US-8

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Overview

​If your application is an urban environment or tighter than normal; the 'US' model units offer a larger operational envelope whilst maintaining stability and lifting capability.

It is an integrated design which now includes a host of standard factory installed items, such as: Large ROPS Cabin, Emergency Stops, Quick Hitch and Attachment Piping to name a few!

This holistic approach means piece of mind and compliance with industry and customer expectations; additionally, it ensures a quiet environment for the operator.
 
The Komatsu Dash 8 excavators have been founded on an impeccable lineage of proven thoroughbred machines.
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Specifications

Engine

Model
Komatsu SAA4D95LE-5
Horsepower, Gross - SAE J1995 (kW)
72.1
Horsepower, Net - ISO 9249 (kW)
68.4
​Horsepower, Net - SAE J1349 (kW)
68.4
​Rated RPM
2200
​Fan drive method
​Mechanical
​Displacement (litre)
3.26
​Number of cylinders
4
​Related information
Komatsu water-cooled, turbocharged, aftercooled, Tier III compliant, common rail direct injection engine.​

Weights

Operating weight - total (kg)
​13850
Bucket weight – KGA GP (kg)
450
Quick hitch weight – KGA (kg)
178

Operation / Application

Boom size (m) & type
4.6 Standard
Arm size (m) & type
2.5 Standard
Bucket size – KGA standard GP (m3)
0.53
Arm crowd force – ISO (kgf)
6300
Bucket crowd force – ISO (kgf)
9500
Digging depth – maximum (mm)
5480
Digging reach – maximum (mm)
8300
Maximum reach @ ground level (mm)
8180
Swing radius (mm)
1480
Related information
 Komatsu Genuine Attachments available include a dynamic cast quick hitch an selection of bucket solutions.

Driveline and Swing

Drawbar pull, maximum (kg)
​12500
Gradeability (%)
70
Travel speeds (km/h)
2.9/5/1
Swing speed (rpm)
11.0
Related information
 The travel speed control has an automatic function.

Undercarriage

Shoe size & type
​500mm triple grouser
Related information
 

Hydraulic System

Type
​HydrauMind System
Selectable work modes
5
Economy sub-mode selections
4 
Main pump type
Variable displacement piston
Maximum flow rate (ltr/min)
241.5
Related information
Includes factory fitted: dual flow hammer piping; quick hitch piping, safety switch; boom and arm burst valves with overload alarm.

Dimensions (transport position)

Length, overall (mm)
​7260
Track length on ground (mm)
2880
Track gauge (mm)
1990
Overall track width (mm)
2490
Overall height (mm)
2850
Ground clearance (mm)
395
Related information
Overall height is at transport position.

Service information

Fuel tank (litre)
​195

Communication systems

Internal maintenance monitoring
​Yes
KOMTRAX Satellite tracking
Yes
Hourly fuel usage
Yes

Standard Fitment

ENGINE & RELATED ITEMS
- Komatsu SAA4D95LE-5 engine.
- Air cleaner, double element, dry type with dust indicator.
- Cooling fan with side by side coolers.
 
ELECTRICAL SYSTEM
- Alternator, 24V, 35 Ampere.
- Batteries, standard, 2 x 12 V/64 Ah.
- Starter motor, 24V/4.5 kW.
- Voltage reducer 24v to 12v, in cabin with socket.
 
TRAVEL & BRAKE SYSTEM
- Travel speed control, 2-stage automatic.
 
UNDERCARRIAGE
- Track rollers, single flanged.
- Track shoes, 500mm triple grouser with sealed and greased track links.
 
PROTECTORS, GUARDS AND COVERS
- Track roller guards.
- Revolving frame undercover.
- Cabin windscreen guard, lower part.
 
HYDRAULICS & CONTROLS
- "HydrauMind" CCLS hydraulic control system.
- Boom & Arm holding valve.
- Control levers for steering and travel with PPC system.
- Quickhitch piping, factory fitted, safety switch & alarm.
- Burst valve protection, factory fitted boom & arm, overload alarm.
- Hammer piping, factory fitted, dual flow.
 
SPECIAL ARRANGEMENTS
- EPA Tier III regulation arrangement.
- EU III emission regulation arrangement.
- EU New Noise Arrangement.
- Hard water area arrangement (corrosion resistor).
- Poor fuel arrangement (water separator).
 
SAFETY EQUIPMENT
- Rearview mirror, RH & LH.
- Hand rails, non-slip grip surfaces.
- Camera, factory fitted, single, rear, (plus wiring for additional).
- Emergency stops, factory fitted, (Qty - 3).
- Beacon, rotating type with guard.
 
OPERATOR ENVIRONMENT
- ROPS certified cabin with viscous damper mounts,
  lockable door, fixed RH & rear windows, provision for vandal covers.
- Large LCD colour monitor.
- 5 mode multi selection function buttons & eco-gauge.
- Equipment Management Monitoring System (EMMS).
- Seat, suspension type, fabric, reclining & tiltable arm rests.
- Seat belt, 78mm, retractable.
- Air conditioner, automatic with large air blower.
- Radio, AM/FM, domestic frequency range.
- Provision for UHF radio.
 
OTHER STANDARD EQUIPMENT
- Markings and Caution plates for Australia/NZ.
- Painting, Komatsu standard colouring.
- Work lights, 3 standard; 1 x boom, 2 x cab top.
- Service valve, one additional for attachments.
- Travel alarm.
- Lifting capacity chart.
- Komatsu Machine Tracking System, (KOMTRAX).
 
WORK EQUIPMENT
- Boom assembly, 4,600mm, with 2 x boom cylinders and 1 x arm cylinder.
- Arm assembly, 2,500mm, with 1 x bucket cylinder
- Counterweight, standard 2,850kg.
- Work equipment bushings for 100hr greasing interval.
- Blade with bolt on cutting edge
 
MATERIALS
- Operation and maintenance manuals, two sets.
- Parts books, two sets.
 
WARRANTY
- Premium warranty - 36 months / 6,000 hours.
"Specification is subject to change without notice"

Optional Equipment

​Contact a Komatsu sales representative for optional equipment information.
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Features

Key Features
High productivity ultra short "US" swing construction excavator. The PC138US-8 is tailored for the urban
 environment requiring compact machine versatility and machine safety.
> Improved productivity through superior maximum reach and minimum space working range
> Reduced fuel economy through small engine displacement and 5 work modes
> Safe machine operation from low noise, low protrusion safety cab and rear camera
> Low noise levels 
Productivity
> Low emission Tier 3 compliant engine
> Smooth and fast operation using HydrauMind Integrated hydraulic control system
 
Efficiency
> Reduce fuel consumption using HPCR fuel delivery
> CCLS Hydraulics consume less engine power
> Faster cycle times using arm quick return hydraulic circuit
 
Quality and Safety
> Factory fitted Hammer Piping and Quick Hitch Piping
> Large high visibility safety cab with ROPS certification
> Factory fitted rear camera, emergency stops
> Factory fitted boom and arm burst valves with overload alarm
 
Ergonomics and Systems
> Low vibration levels due to new damper mounted cab
> Automatic air conditioner with pressurised cab
> Large 7 inch LCD colour monitor for high visibility display
> Equipment Management Monitoring System (EMMS) for component monitoring,
maintenance and troubleshooting
 
Maintenance
> Ground access to components for easy maintenance
> Side by Side cooling for efficiency and reduced blockage
> Excellent fuel filtration through a 2 micron filter and pre-filter
 
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