Overview
Increased horsepower, better controllability, extended service intervals and a redesigned operator station increase your productivity and lower your operating costs.
Specifications
| Engine Model | Cat® 3066T |
| Flywheel Power | — |
| Operating Weight | — |
Benefits & Features
Specifications
| Engine Model | Cat® 3066T |
| Flywheel Power | — |
| Gross Power | — |
| ISO 9249 | — |
| SAE J1349 | — |
| EEC 80/1269 | — |
| Bore | — |
| Stroke | — |
| Displacement | — |
| Operating Weight | — |
| Operating Weight - Long Undercarriage | — |
| Operating Weight - Long Narrow Undercarriage | — |
| Swing Torque | — |
| Swing Speed | — |
| Maximum Drawbar Pull | — |
| Travel Speed | — |
| Main Implement System - Maximum Flow (2x) | — |
| Maximum Pressure - Implements | — |
| Maximum Pressure - Travel | — |
| Maximum Pressure - Swing | — |
| Pilot System - Maximum Flow | — |
| Pilot System - Maximum Pressure | — |
| Boom Cylinder - Bore | — |
| Boom Cylinder - Stroke | — |
| Stick Cylinder - Bore | — |
| Stick Cylinder - Stroke | — |
| Bucket Cylinder - Bore | — |
| Bucket Cylinder - Stroke | — |
| Fuel Tank | — |
| Cooling System | — |
| Engine Oil | — |
| Swing Drive - Each | — |
| Final Drive - Each | — |
| Hydraulic System - Including Tank | — |
| Hydraulic Tank | — |
| Performance | ANSI/SAE J1166 OCT98 |
| Transport Width | — |
| Length - Center of Rollers | — |
| Shipping Height | — |
Benefits & Features
Engine
Torque Rise
The engine is designed for high torque rise at medium speeds – a feature that is especially beneficial for heavy-duty use.
Low Sound and Vibration Levels
The engine is attached to the main frame with four rubber mounts. These mounts reduce vibration transmitted to the frame and decrease sound levels.
Maintenance Access
The oil level dipstick, oil filter, fuel filter and priming pump are located in front of the engine for easy maintenance. To reduce downtime, the engine oil filter and fuel filter change intervals have been extended. Valves for engine oil and coolant have been added on top of the engine to make fluid sampling easier.
Fuel System
Fuel injector pump and injector nozzle design provide starting ease and low sound and emission levels. The spin-on Cat fuel filter makes replacement quick and easy. A standard fuel system water separator uses a filter to remove water from the fuel system.
Cooling System
A corrugated-wave fin, four-row radiator design makes it easy to clean. A wire mesh screen that mounts in front of the radiator helps prevent clogging.
Air Cleaner
The radial seal air filter features a double-layered filter core for more efficient filtration.
Turbocharger
The turbocharger increases engine power and efficiency by compressing atmospheric air bound for the cylinders. Compressed air gives the engine more power because it allows the engine to burn additional fuel more efficiently.
Air Intake Heater
A standard engine air intake heater assists engine starting in cold weather.
Emission Countermeasure
The Cat 3066T meets all domestic emission control standards, U.S. EPA standards and European primary emission control standards.
High Ambient Cooling Package
Ambient working temperature for the standard 318C is 43ºC (109ºF). The optional high ambient cooling package has a 52ºC (125ºF) capacity. The high ambient package attachment provides increased radiator fan speed and increased air inlet and outlet of side covers.
Cold Weather Starting Kit
The optional cold weather starting kit is designed to allow starting down to -25ºC (-13ºF). This kit includes a battery with a larger capacity. The standard 318C allows starting to -18ºC (-0.4ºF).
Remanufactured Components
Using remanufactured components reduces engine repair and maintenance costs. The following components are available as remanufactured 318C components: injectors, heads, crankshafts, turbochargers, water pumps and starters.
Hydraulics
Precise Control
Hydraulics deliver smooth changes in speed and outstanding overall control, so operators remain comfortable and productive throughout the day.
Pilot System
The hydraulic pilot system controls the front linkage, swing and travel operations.
Component Layout
The 318C hydraulic system was designed to provide a high level of efficiency. With all major components located close together, shorter tubes and lines are needed, resulting in less friction loss in the lines and reduced pressure drops.
Flow Control System
When controls are in neutral position, flow is minimized resulting in longer component life and lower fuel consumption and sound levels.
Hydraulic Cross-Sensing System
The system utilizes the two main hydraulic pumps to maximize engine power under all operating conditions, resulting in faster implement speeds and pivot turns.
Boom and Stick Regeneration Circuit
Saves energy during boom-down and stick-in operation, providing shorter cycle times and lower operating costs.
Automatic Boom and Swing Priority
For simpler operation, work mode and power mode switches have been eliminated. Instead, the automatic boom and swing priority function selects the best mode, based on joystick movement.
Boom/Stick Drift Reducing Valves
Valves reduce the natural drift of the boom and stick, so lifted material will remain suspended for long periods with virtually no drift.
Reverse Swing Damping Valve
Standard reverse swing-damping valves reduce swing wag.
Auxiliary Hydraulic Valve
The auxiliary hydraulic valve is standard on the 318C for use with optional hydraulic circuits.
Stackable Valves
Up to two stackable valves can be used in combination with the main control valve, allowing additional tool circuits to be added.
Hydraulic Cylinder Snubbers
Snubbers are located at the rod-end of the boom cylinders and both ends of the stick cylinders to cushion shocks while reducing sound levels and extending cylinder life.
Electronic Power Unit Control System
Protection of the Electronic Power Unit Control System (EPC) has been improved. Input-output terminals and electric terminals are fully protected so reverse connections or shorts do not affect the main unit.
Automatic Engine Speed Control
During no-load and lighter-load conditions, the automatic engine speed control reduces engine speed and is controlled by the EPC.
Fine Swing Control
A fine swing control mechanism is available as an attachment for applications requiring smoother movements at swing stop.
Front Linkage
Front Linkage Attachments
Allows the choice of one boom, three sticks and five buckets. Using these combinations makes the excavator productive in a wide range of applications.
Boom
The reach boom is designed to provide maximum digging capability. The boom features a box-section design and high-tensile strength steel for high durability and consistency.
Sticks
The customer's working envelope and bucket capacity requirements determine stick choice. Three stick attachments are available: a long stick to maximize reach, medium stick for the most versatile front linkage or short stick for a good digging envelope with large bucket sizes and good stability for hammer work. All sticks use a box-section design made of high tensile-strength steel and a baffle plate.
Linkage Bearings
Self-lubricated, sintered bearings greatly extend the greasing interval on front linkage pins by reducing pin friction. Greasing intervals on the bucket swing pin connection are also extended using a mesh bearing design.
Linkage Pin
All pins have thick chrome plating, making them resistant against galling and squealing. To smoothly distribute the shear and side loads associated with the stick, the diameter of each pin is made as large as possible.
Buckets
To meet customer needs, five bucket sizes are available for heavy-duty applications. High tensile-strength steel is used in high-stress areas for excellent wear and shock resistance. The side and bottom wear plates and cutting edges are reinforced for extra protection.
Bucket-Flop Adjustment Mechanism
Each Cat bucket is equipped with this feature, allowing the operator or service person to reduce the side play at the bucket to stick-nose connection.
Undercarriage
Track Types
The 318C is available with two different track types: long and long narrow.
Carbody and Track Roller Frame
X-shaped, box-section carbody provides high rigidity and excellent resistance to torsional bending. The track frame is made from a press-formed pentagonal section for maximum strength and long service life.
Grease-Lubricated Track
Grease-lubricated seals protect the track link and provide longer wear life by helping to keep dirt and debris from entering the pin and bushing joint.
Roller Lubrication
All rollers, sprockets and idler joints are closed with floating seals. Lubricating oil from the seals prevents water and dirt from entering. The seals also make lubrication maintenance-free.
Travel Motors
Automatic speed selection enables the machine to automatically shift up and down from high and low speeds in a smooth, controlled manner. The 318C features increased drawbar pull for excellent maneuverability on slopes and in muddy underfoot conditions.
Track Guards
The idler guard and bolt-on center guard are standard equipment. They help maintain track alignment while traveling or working on slopes. For applications that require additional track protection or alignment, optional guards are available.
Straight-Line Travel Circuit
This circuit allows the 318C to maintain low-speed, straight-line travel, even when operating the front linkage. This circuit is especially useful when turning the upper structure while traveling, using a wrecking ball or similar tool, and for precise finishing or final leveling.
Final Drive
Two-stage reduction planetary drives feature a complete drive/brake unit, delivering excellent performance, reliability and compact size.
Operator Station
Cab Design
The cab has been redesigned to maximize operator comfort and space. The air conditioner and attachment switches are conveniently located on the right-hand wall, and the key switch and throttle dial are situated on the right-hand console.
Monitor
The compact monitor enhances viewing while displaying a variety of easy-to-read and understand language-based information.
Cab Exterior
The new exterior design uses thick steel tubing, running from the rear to the bottom of the front of the cab for improved resistance to fatigue and vibration.
Cab Mounts
The cab shell is attached to the frame with viscous rubber cab mounts, reducing vibrations and sound levels for enhanced operator comfort.
Windows
The right side glass is attached directly to the window frame with adhesive for improved visibility. The upper front windshield opens, closes and stores above the operator with a one-touch action release system. The lower front windshield features a rounded design to maximize downward visibility.
Skylight
An enlarged skylight with sunshade improves visibility and provides good ventilation.
Wipers
Pillar-mounted wipers increase the operator's viewing area and offer continuous and intermittent modes.
Consoles
Redesigned consoles feature a simple, functional design. Both consoles have attached adjustable armrests.
Seat
The new seat features two types of cushions, soft and firm, to reduce operator fatigue and support the operator in the proper position.
Automatic Climate Control
The 318C features a fully automatic climate control. The air conditioner adjusts temperature and flow and determines which air outlet would be best used in particular situations.
Standard Cab Equipment
To enhance operator comfort and productivity, the cab includes a lighter, drink holder, coat hook, service meter, literature holder, magazine rack and storage compartment.
Serviceability
Prestart Monitoring System
The prestart monitoring system allows the operator to check coolant, hydraulic oil and engine oil levels from the monitor inside the cab.
Diagnostics and Monitoring
The 318C is equipped with S•O•SSM sampling ports and hydraulic test ports for the hydraulic system, engine oil and coolant.
Engine Inspection
The engine can be accessed from the upper structure. The oil level gauge, oil filter, fuel filter and priming pump are all located in front of the engine for easy maintenance.
Air Filter Compartment
The air filter features a double-element construction for superior cleaning efficiency. When the air cleaner clogs, a warning is displayed on the monitor inside the cab.
Radiator Compartment
The left rear service door allows easy access to the engine radiator and oil cooler. A reserve tank simplifies maintenance.
Swing-Out Oil Cooler
Oil cooler swings out horizontally for easy cleaning.
Fan Guard
Engine radiator fan is completely enclosed by fine wire mesh, reducing the risk of injury.
Pump Compartment
A service door on the right side of the upper structure allows ground-level access to the pump and pilot filter.
Handrail and Steps
Large handrails and steps assist the operator in climbing on and off the machine.
Punched-Star Plate
Anti-skid punched-star plate covers the top of the storage box and upper structure to help prevent slipping during maintenance.
Capsule Filter
The hydraulic return filter, a capsule filter, is situated inside the hydraulic tank. This filter prevents contaminants from entering the system when hydraulic oil is changed.
Extended Service Intervals
Extended service and maintenance intervals reduce service time and increase machine availability.
Ground Level Service
Many service locations are easily accessible at ground level allowing critical maintenance to get done quickly and efficiently.
Greasing Points
A concentrated remote greasing block on the boom delivers grease to hard-to-reach locations.
Storage Box
The storage box is located at the front of the upper structure. Tools, grease guns and other repair equipment can be stored in this space. The lockable storage box also accommodates a refueling pump, which is available as an attachment; however, adding these attachments eliminates storage area.
Complete Customer Support
Selection
Make detailed comparisons of the machines you are considering before you buy. What are the job requirements, machine attachments and operating hours? What production is needed? What is the true cost of lost production? Your Cat dealer can give precise answers to these questions.
Purchase
Look past the initial price; look at the value the 318C offers. Consider the resale value and compare productivity and day-to-day operating costs. Consult your local Cat dealer for financing options.
Operation
For the best operating techniques to increase productivity and your profit, turn to your Cat dealer for the latest training literature and trained staff.
Maintenance
Repair option programs guarantee the cost of repairs up front. Diagnostic programs such as S•O•S and Technical Analysis help you avoid unscheduled repairs.
Replacement
Repair, rebuild or replace? Your Cat dealer can help you evaluate the cost involved so you can make the right choice.
Product Support
You will find nearly all parts at our dealer parts counter. Cat dealers utilize a worldwide computer network to find in-stock parts to minimize machine downtime. You can save money with Cat remanufactured components.
Warranty
Your local Cat dealer is there to support and protect you. Extended warranty options are also available.
Data not available.
Standard Equipment
- Cab
- - AM/FM radio, 24-volt
- - Ash tray and cigar lighter
- - Bi-level air conditioner with defroster
- - Bolt-on Falling Objects Guard System (FOGS) capability
- - Drink holder
- - Floor mat
- - Fully adjustable suspension seat
- - Horn
- - Hydraulic neutralizer lever for all controls
- - Joysticks, adjustable pilot-operated
- - Language display monitor with gauges
- - Light, interior
- - Literature compartment
- - Openable front windshield
- - Openable skylight with sunshade
- - Storage compartment
- - Travel control pedals with removable hand levers
- Power train
- - Cat 3066T diesel engine
- - One touch low idle
- - Swing-out oil cooler
- - Water separator
- - Two speed auto-shift travel
- - Straight line travel
- - Muffler
- Undercarriage
- - Track-type undercarriage with grease lubricated seals
- - 500 mm (20") triple grouser shoes - 318C LN
- - 600 mm (24") triple grouser shoes - 318C L
- - Hydraulic track adjusters
- - Idler and center section track guiding guards
Optional Equipment
- Auxiliary hydraulics - dual directions and a
- medium pressure circuit
- Cabs, optional
- - Cab with polycarbonate windows (mandatory in certain countries)
- - Cab with tempered windows
- Sticks
- - 3200 mm (10'6")
- - 2700 mm (8'10")
- - 2250 mm (7'5")
- Track
- - 600 mm (24") triple grouser shoes (318C LN only)
- - 700 mm (28") triple grouser shoes
- - 800 mm (32") triple grouser shoes (318C L only)
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| S320B | — | — | — |
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| Model | Closing Force - Tip | ||
|---|---|---|---|
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Stiff Link Thumbs
Stiff Link Thumbs feature a rigid link.
| Model | Number of Teeth/Tines | ||
|---|---|---|---|
| Stiff Link Thumb 3-tooth 401 mm (16 in): 378-2320 | 3 | — | — |
| Stiff Link Thumb 4-tooth 679 mm (27 in): 378-2322 | 4 | — | — |
| Stiff Link Thumb 4-tooth 679 mm (27 in): 378-2325 | 4 | — | — |