The new Doosan Excavator DX55A provides the operator with a number of extra benefits. The new DX55A was created with the idea of “delivering the best possible value to the end customer” in mind. The electrical optimization of the hydraulic system and the use of a new generation engine enabled the company to increase productivity while simultaneously improving fuel efficiency. Improved ergonomics, enhanced comfort, and exceptional all-around vision guarantee a safe and comfortable working environment.

Improved dependability, achieved via the use of high-performance materials in conjunction with innovative techniques of structural stress analysis, has resulted in an increase in component life expectancy, which has resulted in a reduction in operating costs. Reduced maintenance enhances the availability of the excavator while also lowering its operating expenses. Specially designed and developed design and analysis technologies to ensure that all machines are as sturdy and long-lasting as possible Materials and structures are subjected to rigorous testing to ensure that they are strong and resilient under the harshest situations.

Performance and Fuel Economy

Powered by a strong digging force and equipped with a high-tech hydraulic system, the DX55A delivers the highest performance possible on any job site! Its most important characteristic is its outstanding performance! When it comes to good performance, overall safety and convenience are also important considerations. The engine automatically enters Idle mode four seconds after the joystick is depressed, and it returns to the predetermined operating speed when the joystick is depressed again four seconds later. This feature helps to minimize overall fuel usage as well as noise.


  • Height: 8.21ft
  • Length: 6.53ft
  • Width: 6.17ft
  • Operating weight: 12345.9 lb

Engine type: 4TNV98-Z

Vehicle type: excavator

Fuel tank: 30.4 gal

DOOSAN EXCAVATOR DX55A Factory Service Manual

The Doosan Excavator DX55A service manuals are extensive, covering every vehicle operation and maintenance element. A service manual should be included with every repair shop visit for a Doosan DX55A:

  • Maintenance
  • General
  • Service
  • Engine
  • Electrical
  • Power Transmission
  • Information System
  • Cab
  • Brakes
  • Steering
  • Interior
  • Hydraulic System

DOOSAN EXCAVATOR DX55A repair manuals are intended for technicians and dealerships to regularly maintain and repair vehicles. When focusing on Doosan Excavator troubleshooting, the owner must use these service instructions to verify that any maintenance or repairs are done properly and exactly on every occasion.

Doosan Excavator DX55A

In addition to the service manual mentioned above, there are also parts catalogs, wiring diagrams, and owner’s manuals available for purchase for your Doosan Excavator.

Design, Comfort, and Quality

Compared to medium and heavy-duty machines, this standard-duty machine has a large operational area only found in medium and heavy-duty machines. The ergonomic design of the cabin’s working controls ensures the operator’s ease and comfort while doing his or her duties. The most modern technology developed by Doosan Infracore Co., Ltd. put into the DX55A excavator provides strong performance while maintaining a simple and easy-to-maintain design.

In addition to providing the operator with handy maintenance checkpoints, it also increases the DX55A’s overall job efficiency. The equipment’s dependability influences the whole life running expenses of a machine. Doosan relies on finite elements and three-dimensional computer modeling to create its products.

The use of metal-textured plates, similar to those seen in high-end automobiles, and a clustered switch design increase the convenience and productivity of the workplace. A tiny storage box and a 12V charging port are included in the cabin for your convenience. Cell phones and other electrical gadgets may be securely kept in a locked cabinet or drawer. The rapid cooling air conditioner switch ensures the comfort of the operating personnel. The amount of noise has been reduced even more thanks to a new noise absorber. Overheating in the engine room is avoided, improving worker comfort and equipment longevity.

A Revolutionary Design

The chassis is equipped with a revolutionary design structure that reduces stress concentration while simultaneously improving machine longevity and work stability. The connection point for the track rollers was moved from the lower to the middle area of the chassis to increase undercarriage stability and structural strength of the chassis. The redesigned idler wheel improves the structural integrity of the joint, while the assembly procedure is simplified and joint stability is increased as a result of the one-piece casting.

A new battery box and storage compartment were added to the machine’s features list. A grease gun is in the battery box for convenience in the field. Key cylinders are used to keep the battery and toolbox safe and secure. The diesel cooler and water tank are installed in a parallel configuration to make installation, removal, and replacement simple and straightforward.