Komatsu PC300-7|PC300LC-7|PC350-7 Excavator Repair Workshop Manual

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The increased output and fuel savings of the Komatsu

SAA6D114E engine result in increased production and

improved production per unit of fuel.

Engine

The PC350-7 gets its exceptional power and work capacity

from a Komatsu SAA6D114E engine. Output is 180 kW

242 HP, providing increased hydraulic power and improved

fuel efficiency.

Hydraulics

Unique two-pump system ensures smooth compound

movement of the work equipment. HydrauMind controls both

pumps for efficient engine power use. This system also

reduces hydraulic loss during operation.

Larger Maximum Drawbar Pull

PC350-7’s maximum drawbar pull is increased by 17% and

provides superb steering and slope climbing performance.

Maximum drawbar pull: 264 kN 26900 kgf 59,300 lb.

Komatsu PC300-7|PC300LC-7|PC350-7 Excavator Repair Workshop Manual

● High Rigidity Work Equipment

The arm and boom are strengthened to correspond to increasing bucket and arm

digging forces. The top and lower plate of the boom are changed from a threepiece

to a one-piece welded structure to improve durability. The arm plate thickness

is also increased (compared with PC300-7). The boom and arm have large

cross sectional dimensions as well

as continuous groove welding to improve

digging and side-contact strength.

● Sturdy Frame Structure

The revolving frame, center frame and undercarriage

are designed by using the most advanced three-dimensional

CAD and FEM analysis technology.

● Reliable Components

All of the major machine components,

such as engine, hydraulic pumps,

hydraulic motors and control valves, etc.,

are exclusively designed and manufactured by Komatsu.

● Highly Reliable Electronic Devices

Exclusively designed electronic devices have passed

severe testing.

● Controller ● Sensors

● Connectors ● Heat resistant wiring

● Metal guard rings protect all the hydraulic cylinders and improve reliability.

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Komatsu PC 300- 350 LC 7EO Excavator Workshop Service Manual

Komatsu PC300-7|PC300LC-7|PC350-7 Excavator Repair Workshop Manual, Komatsu PC300LC-7 Service Repair Manual, Komatsu PC350LC-7 Repair Service Manual