Cab Design

Cab Exterior

Cab Mounts

Additional Features

• Low effort joysticks.
• Numeric view of fuel consumption on the monitor.
• Optional rearview camera for added safety.
• Optional HID (High Intensity Discharge) lights with time delay for the boom and cab lights.
• Optional premium air suspension seat with adjustable/tilt console.
• Two-way radio-ready option.
  Engine

  Cat® C18 Engine

  The C18 engine with ACERT™ Technology powers the 390D. The C18 has a proven record of long life. Materials like high-strength steels and cast iron contribute to its durability, while uniquely designed water-cooled turbochargers and mechanically actuated fuel injection contribute to its reliability.
  

  Improved Fuel Efficiency

  The 390D optimizes fuel consumption through flexible power settings incorporated into the ADEM™ controller, which electronically manages engine response to load demand. The operator can select High Production, Standard or Economy mode to meet application requirements.
  

  Hydraulic Cooling Fans

  The 390D uses hydraulically driven cooling fans that operate based on coolant and hydraulic oil temperatures. To reduce load when cranking the engine, the cooling fan speed is fixed for a set amount of time after the engine is started and then is increased gradually to a specific speed.
  

  Reversible Fan

  A reversible fan option is offered to help clean the cooling package for increased uptime and reduced service cost.
  
  
  
  Control System

  Monitor Display

  The monitor is a full-color Liquid Crystal Display (LCD). A master caution lamp blinks ON and OFF when one of the critical conditions below occurs:

  • Engine oil pressure low
  • Coolant temperature high
  • Hydraulic oil temperature high

  Under normal conditions or the default condition, the monitor display screen is divided into four areas: clock and throttle dial, gauge, event display and multi-functional display.
  

  Gauge Display

  Three analog gauges – fuel level, hydraulic oil temperature and coolant temperature – are displayed in this area.
  

  Pattern Control Changer

  The standard hand control pattern changer can be accessed through the monitor to utilize either the standard excavator control pattern or backhoe pattern, making it easier for operators to work in the mode they are accustomed.
  

  Electronic Joysticks

  Electronic joysticks provide features not possible with hydraulic pilot valves:

  • Eliminate pilot lines in cab for quieter operation
  • Simple pattern change through the monitor

  
  

  Operator Gain/Response

  This is used to suit the operator preference or application.

  • Faster for quick response
  • Slower for more precision

  
  

  Product Link

  Product Link is a proprietary Caterpillar technology that tracks machine location, product health, hours of use and fuel consumption. This information is transmitted back to customers to help maximize machine productivity.
  

  Structures

  Variable Gauge Undercarriage

  The variable gauge undercarriage is standard, providing a wide, stable base for operating or a narrow gauge for reduced shipping width. Changes to the 390D/390D L undercarriage include:

  • Improved track link to reduce and avoid stresses
  • Improved carrier rollers to reduce the risk of leaking lubrication oil
  • Improved forged idler for added durability in severe underfoot conditions
  • Positive Pin Retention 2 (PPR2) to prevent pin movement

  
  

  Catwalks

  Slip-resistant catwalks are 500 mm wide and stretch the length of the machine to provide safe access to major service points.
  

  Track Roller Frame

  The thick, steel-plated track roller frame is welded into a box structure, which provides increased rigidity and impact resistance.
  

  
  

  Undercarriage

  Undercarriage

  The undercarriage supports the swing bearing and upper structure and is the link that transmits the reaction forces from digging to the ground. The strength of the Cat undercarriage plays a major factor in machine stability and durability.
  

  Track Roller Frame

  The track roller frame has been improved by installing a longer stroke recoil spring and lowering the front idler. The longer recoil spring improves durability and service life of the undercarriage while the offset idler increases the stability of the machine while working over the front.
  

  Positive Pin Retention 2 (PPR2)

  Track links with the PPR2 are provided as standard on the 390D/390D L. The PPR2 is designed to prevent looseness of the track pin in the track link and to reduce stress concentrations. The PPR2 system eliminates pin movement for increased service life.
  

  Carrier Rollers

  The carrier rollers use a floating Duo-Cone seal, which reduces the risk of leaking lubricating oil.
  

  Forged Idler

  A forged idler for increased durability is standard on the 390D/390D L.
  

  Front Linkage

  Front Linkage

  Cat® Excavator booms and sticks are built for performance and long service life.

  • Casting and forgings are used at high stress areas such as the boom nose, boom foot, boom cylinder and stick foot.
  • All booms and sticks are stress-relieved for optimal life and durability while minimizing weight for improved performance.
  • All booms and sticks are ultrasonic inspected to ensure reliability.

  
  

  Bucket Linkage

  Two bucket linkages are available for the 390D.
  

  Boom Construction

  390D booms feature a large cross section to improve strength, reduce weight and maximize payload. Baffle plates reinforce the boom interior for higher rigidity.
  

  Stick Construction

  Sticks are made of high-tensile strength steel in a box-section design, making them strong and light. All sticks are reinforced with a thick baffle plate for added rigidity. The connection between stick and boom is made of forged steel, and a thick steel plate is used at the bucket connecting location for increased strength and rigidity at load-bearing points. An additional wear plate is added to the bottom plate to protect against damage. There are two reach sticks, three general purpose sticks and two mass sticks available to meet your needs.
  

  Linkage Pins

  All front linkage pins have thick chrome plating, giving them high wear resistance. Each pin diameter is made to distribute the shear and bending loads associated with the stick and to help ensure long pin, boom and stick life.
  

  Buckets and Teeth

  Optimized Package

  Caterpillar offers a wide range of buckets – each designed and field tested to function as an integral part of your excavator. All Cat® Buckets feature K Series™ Ground Engaging Tools (GET). Buckets are available in four levels of durability and are built to take full advantage of the machine’s power.
  

  General Duty (GD)

  General Duty buckets are designed for use in low impact, low abrasion material such as dirt, loam and mixed compositions of dirt and fine gravel.
  

  Heavy Duty (HD)

  Heavy Duty buckets are the most popular and a good “centerline” choice. This bucket style is a good starting point when application conditions are not known. Heavy Duty buckets are designed for a wide range of impact and abrasion conditions, including mixed dirt, clay and rock.
  

  Severe Duty (SD)

  Severe Duty buckets are designed for higher abrasion conditions such as shot granite. When compared to the Heavy Duty bucket, wear bars and wear plates are substantially thicker and larger for added protection.
  

  Extreme Duty (XD)

  Extreme Duty buckets are designed for very high abrasion conditions such as granite quarries. Corner shrouds have been added, and side wear plates are larger for added protection.
  

  Work Tools

  Increase Machine Versatility

  The Cat combination of machine and tool provides a total solution for just about any application. Work tools can be mounted either directly to the machine or to a quick coupler, making it fast and easy to release one work tool and pick up another.
  

  Quick Coupler

  Cat quick couplers enable the operator to simply release one work tool and pick up another so your hydraulic excavator becomes extremely versatile.
  

  Work Tools

  An extensive range of Cat Work Tools for the 390D includes buckets, grapples, shears, multi-processors and rippers. Each is designed to optimize the versatility and performance of your machine. Cat Work Tools and couplers are ready to work in a variety of applications, such as site and structure demolition, debris clean-up, truck loading, scrap processing and breaking road surfaces and bedrock.
  

  Hydraulic Kits

  Caterpillar offers field-installed hydraulic kits designed to simplify the process of ordering and installing the right kit. Modular kit designs integrate Cat Work Tools with Cat Hydraulic Excavators. Every kit is easy to install. Hoses are pre-made, tubes are pre-bent and pre-painted and there are comprehensive instructions.
  

  Environment

  Emissions

  ACERT™ Technology is a differentiated technology that reduces emissions at the point of combustion. It capitalizes on proven Caterpillar leadership in three core engine systems: fuel, air and electronics.
  

  Electro Magnetic Compliance

  The 390D meets the following EMC (Electro Magnetic Compliance) requirements:

  • ISO 13766 Earth Moving Machinery – Electromagnetic compliance
  • EU Directive 89/336/EEC
  • Aus EMC Framework

  
  

  Fluid Management

  Many serviceability elements are designed into the 390D to limit fluid spillage while performing routing maintenance.
  

  Filters

  Hydraulic return filters are vertically mounted, capsule-type with shutoffs in the inlet and outlet ports.
  

  Ecology Drains

  Ecology drains for the fuel and hydraulic tanks allow fluids to be captured in a container when draining the tanks.
  

  Certified Rebuild

  When most other manufacturers’ models require replacement, Cat equipment can be rebuilt using many remanufactured parts. This means less materials going to landfills.
  

  Service and Maintenance

  Service Intervals

  Long service intervals reduce maintenance costs. Engine oil, oil filter and fuel filters are rated at 500 hours.
  

  Oil Sample and Pressure Ports

  Oil sample and pressure ports provide easy checking of machine condition and are standard on every machine.
  

  Hydraulic Capsule Filters

  The return filters, or capsule filters, for the hydraulic system are located beside the hydraulic tank. The filter elements are removable without spilling hydraulic oil.
  

  Service Points

  Service points are centrally located with easy access to facilitate routine maintenance.
  

  Pilot Hydraulic System Filter

  A pilot hydraulic system filter keeps contaminants from the pilot system and is located in the pump compartment.
  

  Remote Greasing Block

  A concentrated remote greasing block on the boom delivers grease to hard-to-reach locations.
  

  Radial Seal Cleaner

  The radial seal main air cleaner with precleaners has a double-layered filter element for more efficient filtration. No tools are required to change the element.
  

  Fuel-Water Separator

  The fuel-water separator removes water from fuel, even when under pressure, and the water level can be monitored in the cab.
  

  Complete Customer Support

  Product Support

  Cat dealers utilize a worldwide parts network to minimize machine downtime. Plus you can save money with Cat remanufactured components.
  

  Machine Selection

  Make detailed comparisons of machines you are considering. What are the job requirements and machine attachments? What production is needed? Your Cat dealer can provide recommendations.
  

  Purchase

  Consider financing options and day-to-day operating costs. Look at dealer services that can be included in the machine’s cost to yield lower owning and operating costs over time.
  

  Customer Support Agreements

  Cat dealers offer a variety of customer support agreements and work with you to develop a plan to meet specific needs. These plans can cover the entire machine, including attachments, to help protect your investment.
  

  Operation

  Improving operating techniques can boost your profits. Your Cat dealer has videos, literature and other ideas to help you increase productivity. Caterpillar also offers simulators and certified operator training to help maximize the return on your investment.
  

  Replacement

  Repair, rebuild or replace? Your Cat dealer can help you evaluate the cost involved so you can make the right choice.