Komatsu PC78US-11 Excavators Facts & Figures

Complete Komatsu PC78US-11 Excavators facts & figures including specifications, capacity and horsepower, production years and hours, performance rating, attachments, technical specifications, transmission type, forage boxes, weights, widths and more details.

Komatsu PC78US-11- TORQUE MEASURED @: 1,500 rpm

Komatsu PC78US-11 is a great excavator for use in tight areas where a larger machine is not practical. The PC78US-11 has an operating weight of 18,800 lbs and a digging depth of 13 feet 3 inches. It is a zero tail swing machine so the back of the house will not protrude past the width of the tracks when digging in tight areas. It has a powerful 65 hp turbo charged engine that provides power for all your excavating needs!

The best feature about this machine is the Komatsu Smart control system. This system allows you to adjust your engine RPM from inside the cab, which helps reduce fuel consumption and noise levels.

Komatsu PC78US-11 is designed with ease of maintenance in mind. The top decking comes off easily so there are no hydraulic hoses running across it and all filters are located at ground level for quick access when changing them out during routine maintenance intervals.

The undercarriage on this PC78US-11 has been designed with durability in mind. The side frames are cast steel with extra welds on them to prevent cracking or warping over time which could lead to premature failure of other components.

Komatsu PC78US-11


The Komatsu PC78US-11 Compact Excavator doesn’t have to rely on a hydraulic hammer to dig through rocky soil. The dual flange steel tracks are as durable and reliable as the machine itself. This excavator can perform even in the toughest conditions making it perfect for any job site.

The Komatsu PC78US-11 Compact Excavator has a net power of 48HP and comes with a variety of features including:

◦High Performance Undercarriage with Steel Tracks for Stability and Durability

◦Excellent Digging, Load Holding, and Swing Torque Capabilities

◦Low Noise Level

◦Easy to Operate Hydraulic System with Low Vibration Controls

With its powerful engine, smooth operating hydraulics, and exceptional operator comfort, you can’t go wrong with this excavator. If you’re looking for a machine that will get the job done right, then look no further than the Komatsu PC78US-11 Compact Excavator!

Facts & Figures

Komatsu PC78US-11-Engine – Make/Model Type: Komatsu SAA4D95LE-6

Engine – Make/Model Type: Komatsu SAA4D95LE-6

Generator – Model Type: Doosan DPG150E

Generator – Rating: 175 kVA at 1500 rpm

Generator – Voltage: 240 Volts AC, Three Phase, 4 Wire 60 Hertz

Generator – Frequency Regulation: + or – 1.5%

Generator – Power Factor: 0.8 Leading to 0.8 Lagging

Komatsu PC78US-11-Approved ROPS/FOPS cab or canopy

Approved ROPS/FOPS cab or canopy

A Roll-Over Protective Structure (ROPS) is a structure which prevents the overturning of a vehicle and protects the occupants from impact with the ground. A Falling Object Protective Structure (FOPS) is a structure over a ROPS that provides additional protection from falling objects.

ROPS are mandatory on agricultural tractors, forestry tractors and certain specialist vehicles where the likelihood of rollover is high, such as many forklift trucks.

The most common design for a simple ROPS is a sturdy frame to which the seat and controls are attached, so that if the vehicle overturns, these accessories are not crushed by the chassis or engine. The next stage of sophistication is to mount the frame on hinges or telescopic struts so that it will collapse in stages rather than break off cleanly at its mounting points in an accident.


The primary member of a ROPS is usually steel tubing, although structural steel I beams have also been used. Either can be designed to meet recognized engineering standards, such as ISO 3471, AS 1636 and others. The most commonly used tube sizes are 2-inch diameter (typically made from schedule 80 pipe) or 2.

Komatsu PC78US-11-Suspension seat with adjustable head rest and retractable seat belt

Seat with adjustable head rest and retractable seat belt

Seat for a vehicle such as an all-terrain vehicle (ATV), snowmobile, or motorcycle includes a seat frame having two side edges, two front edges, and a rear edge. A suspension assembly is attached to the seat frame, wherein the suspension assembly includes a front suspension member having a first end and a second end. The first end of the front suspension member is attached to the seat frame, while the second end of the front suspension member is located within a first cavity defined by the side edges, front edges and rear edge of the seat frame. A headrest is attached to the seat frame and includes a support member that extends upwardly from the headrest. The support member has an upper portion that defines at least one slot, wherein at least one strap is secured in place within each slot. A retractable seat belt assembly is attached to either of the headrest or the seat frame.

Komatsu PC78US-11-Machine lighting package includes front and rear lamps and hazard lamp

1, Emergency lighting switch: the emergency lighting switch is used to implement the emergency lighting system of the vehicle.

2, Lighting fuse: The position and function of the fuse are shown in the vehicle electrical diagram. When each circuit of the car fails, first check whether the corresponding circuit has an abnormally large current consumption, if it is an abnormally large current consumption, first check whether there is a short circuit between the load and ground. If there is a short circuit between the load and ground, replace with a working no-fuse wire. After replacing the working no-fuse wire, check whether there is still a short circuit between the load and ground. If there is no short circuit between the load and ground, remove all loads of this circuit one by one and check whether there is a short circuit between them and ground to find out which load has a short-circuit fault. Replace this load with a good one to solve the problem. If there is still a short circuit between any two loads, first use work no-fuse line to replace it for inspection. If there is still a short circuit between them after changing to work no-fuse line, it can prove that they are both faulty loads or bad wiring connections, so they are replaced.

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