Specifications
| Tractor Engine | Cat® 3408E |
| Net Power - Tractor/Scraper | 336 kW (450 hp) |
| Gross Power - Gears 1-2 | — |
| Gross Power - Gears 3-8 | — |
| Net Power - Gears 1-2 | — |
| Net Power - Gears 3-8 | — |
| Bore | — |
| Stroke | — |
| Displacement | — |
| Capacity Heaped | — |
| Rated Load | — |
| Capacity - Struck | — |
| Depth of Cut - Maximum | — |
| Width - Cut - To Router Bits | — |
| Ground Clearance - Maximum | — |
| Hyd. Penetration Force - 621G | — |
| Depth of Spread - Maximum | — |
| Apron Opening | — |
| Apron Closure Force | — |
| 1 Forward | — |
| 2 Forward | — |
| 3 Forward | — |
| 4 Forward | — |
| 5 Forward | — |
| 6 Forward | — |
| 7 Forward | — |
| 8 Forward | — |
| Reverse | — |
| Bowl Cylinder Bore | — |
| Bowl Cylinder Stroke | — |
| Apron Cylinder Bore | — |
| Apron Cylinder Stroke | — |
| Ejector Cylinder Bore | — |
| Ejector Cylinder Stroke | — |
| Steering Circuit | — |
| Scraper Circuit | — |
| Cushion Hitch Circuit | — |
| Secondary Steering Circuit | — |
| Relief Valve - Steering Circuit | — |
| Relief Valve - Implement Circuit | — |
| Compensator Settings - Cushion Hitch Circuit | — |
| Steering Angle - Right | 90° |
| Steering Angle - Left | 85° |
| Crankcase | — |
| Transmission | — |
| Differential | — |
| Final Drive - Each | — |
| Cooling System | — |
| Hydraulic Reservoir | — |
| Wheel Coolant - Each | — |
| Windshield Washer | — |
| Width - Overall Machine | — |
| Width - Tractor | — |
| Width - Rear Tire Center Lines | — |
| Width - Inside of Bowl | — |
| Width - Outside Rear Tires | — |
| Height - Overall Shipping | — |
| Height - Top of Cab | — |
| Ground Clearance - Tractor | — |
| Front of Tractor to Front Axle | — |
| Axle to Vertical Hitch Pin | — |
| Height - Scraper Blade Maximum | — |
| Wheel Base | — |
| Length - Overall Machine | — |
| Rear Axle - Rear of Machine | — |
| Total Shipping | — |
| Tractor Shipping | — |
| Scraper Shipping | — |
| Total Operating - Empty | — |
| Front Axle | — |
| Rear Axle | — |
| Total Operating - Loaded | — |
| Front Axle Weight - Loaded | — |
| Rear Axle - Weight - Loaded | — |
| Operating Weight | — |
| Cab | Meets ANSI, SAE |
| ROPS/FOPS | Meets SAE, ISO |
| Brakes | Meets ISO |
Benefits & Features
Power Train - Engine
3408E Tractor Engine
The 3408E, with dual horsepower capability, provides high power and torque rise for excellent lugging in tough loading conditions. The 3408E is designed for long hours of continuous operation with high displacement and low RPM ratings.
Dual Horsepower
The electronic engine provides increased power when the auger is engaged or when the machine is in the roading gears, which provides quicker acceleration on the haul road.
Emissions Compliant
The 3408E is U.S. Environmental Protection Agency Tier 2 and EU Stage II compliant.
HEUI™ Fuel System
Hydraulically actuated, electronically controlled unit injectors deliver fuel precisely for clean, efficient combustion and excellent fuel economy. The HEUI system has fewer moving parts than mechanical unit injection, for greater reliability and lower maintenance costs.
Electronic Control Module
The ECM responds to operator commands and engine sensor input to optimize engine and machine performance. This advanced engine management software controls and protects the engine at all times against cold starts, high altitude operations and air filter plugging by monitoring:· injection timing and pressure· engine cooling fan speed· ether starting aid · hydraulic pumps
Radiator
The radiator pulls the air from grill side across the radiator fins for cooling. The folded core radiator is comprised of individual modules set in a V configuration with 33 fins per inch. The modular design simplifies servicing, and using a V configuration maximizes surface area in a compact design.
Power Train - Transmission
Transmission
Electronically controlled Caterpillar planetary powershift transmission with eight forward and one reverse speed. Gears 1 & 2 operate in converter drive for increased torque capability during cut and fill operations. Gears 3-8 operate in direct-drive for drive train efficiency during the haul.
Final Drives
Outboard-mounted, planetary design final drives reduce torque loads on other power train components. Large-capacity, double-row roller bearings and Caterpillar Duo-Cone® seals deliver exceptional reliability in the toughest applications.
Independent Systems
Expanding shoe-type brakes are a cam-operated design that is air-applied and spring released. The braking system uses independent front and rear circuits with secondary brakes automatically applied if the service air pressure drops to 380 kPa (55 psi).
Electronic Controls
Simplified System
The electrical system has been redesigned to utilize three electronic control modules (ECM) instead of four.
Improved Serviceability
Combined monitoring systems, easy access diagnostics and more durable components make routine maintenance and servicing simple and fast.
Product Link Ready
Mounting locations and wiring provided for Product Link, which allows customer to track machine location, hours, and machine health. The system has the capability to automatically issue alerts when the machine is being operated beyond owner defined time and location limits.
Fuel Economy
Electronic controls yield a fuel savings by optimizing the timing setting for varying conditions.
Reduced Exhaust Smoke
Utilizing electronic sensors, the optimum air/fuel ratio is precisely controlled by the ECM during all segments of the haul cycle. This results in a reduction of smoke and particulates during cranking, starting, and acceleration.
Operator Station
Multi-Adjustable Seat
The Cat Comfort Cloth Seat has an adjustable seat and armrests for maximum operator comfort.· Swivels and locks in four positions (0º to 30º) providing the optimum operating position in the cut or on the haul. · Fore/aft and vertical height adjustment to accommodate various sized operators.
Revised Steering Column
Increases legroom a full 89 mm (3.5 in), and reduces knee contact.
Standard Air Conditioning
Standard air conditioning system with improved ventilation location enhances airflow in the cab.
Storage And Amenities
Convenient storage location includes space for a lunch box and first aid kit. The cab also has a cup holder as well as an ashtray.
Visibility
The redesigned hood has sloped corners to maintain visibility. The exhaust is located at the back of the hood for good visibility to the right side.
Single Lever Implement Control
Simple and easy to operate, the joystick enhances the productivity of operators of all skill levels. Requires less force to control the critical scraper functions and requires less lever travel. 1) Bowl (forward & back) 2) Ejector (side to side) 3) Apron (thumb rocker switch) 4) Transmission Hold 5) Cushion Hitch 6) Trigger (not shown - is on front of joystick) · Auger (on/off) · Push-Pull (bail up/down) * Standard open bowl does not have a trigger.
Simplified Transmission Control
Simplifies gear selection (1st, 2nd, Drive and Reverse) and allows operator-defined top gear control. Relocating the gear control to the rear increases operator legroom.
Instrument Display Panel
Features a new quad-gauge layout showing engine coolant temp, transmission / torque converter oil temp, fuel level, and system air pressure.
Throttle Lock Controller
Enhances operation during long haul cycles by allowing the operator to maintain a desired engine speed without maintaining pressure on the throttle.
Structures
Cushion Hitch
The electronically actuated cushion hitch incorporates a parallelogram-type linkage for exceptional strength with nitrogen accumulators to deliver a smooth ride for enhanced operator comfort. · controlled oil flow dampens rebound oscillation · leveling valve automatically centers piston in cylinder for all loads· steel castings are used extensively to eliminate many welded joints and increase strength· double-kingbolt design withstands high external forces and simplifies installation and removal
Scraper Bowl
Redesigned Bowl
Excellent productivity with a 10% increase in bowl capacity, improved draft arm protection, and better load retention. Low-profile design of the bowl offers less resistance to incoming materials, while cellular construction adds strength and dent resistance to bowl sides and floor.
Bulldozer Ejection System
Combines constant spreading control while minimizing carryback material. A spill guard on the ejector helps retain material and keep it from spilling over onto the rear of the scraper.
Cutting Edges
May be adjusted according to job conditions. The stinger (drop down) position provides good penetration and efficient flow of material into the bowl whereas the level cutting edge is used for finish work or very high impact conditions.
Caterpillar Ground Engaging Tools (G.E.T.)
A wide variety of Ground Engaging Tool (GET) options, such as standard, serrated, and abrasion resistant material (ARM), are available to optimize scraper loading in various materials. Most are reversible to provide long life and reduced operating costs. Contact your Cat Dealer to learn more about the best tools for your applications.
Dual Horsepower
Provides increased horsepower during the haul, which results in faster cycle times.
Material Application
Well suited to handle a wide variety of material from clay to shot rock.
Push-Loading
To achieve maximum productivity, the 631G should be push loaded by a D9R or D10R Track-Type Tractor.
Auger Arrangement
Versatility
The auger has a wide material appetite ranging from rock to free flowing material such as sand. The auger lifts material off of the cutting edge, conditions it, and spreads it evenly in the bowl.
Auger Mechanism
The auger lifts material off of the cutting edge and carries it to the top of the load for true self-loading capability.
Material Handling
The auger actions on the material produce several benefits: · wide material appetite, ideal for landfills · blends the material to help eliminate voids in the bowl for consistent payloads · conditions material which promotes compaction in the fill · reduces dust and noise during loading · precise metering of material in the fill
Dual Horsepower
Tractor engine automatically reverts to the higher setting when the auger motor is engaged.
Slip Limiter Switch
Prevents rear wheel slip during loading.
Hydraulic System
Single hydraulic system for entire machine with separate implement pumps/valves.
Serviceability
Grouped Service Points
Maintenance and service points for the engine are grouped on the right-hand side for easy access. They include the engine air cleaner, engine oil check and fill, fuel filters and priming, coolant level sight glass, window washer bottle, air conditioning dryer cartridge, ether starting aid canister, engine oil filter, fan drive lubrication, and sampling ports for the engine oil and coolant.· Spin-on fluid filters for all but the main hydraulic filter · Cab wiring harness redesigned and relocated for better serviceability
Customer Support
Product Support
You will find nearly all parts at our dealer parts counter. Cat dealers use a world-wide computer network to find in-stock parts to minimize machine down time. Save money with genuine Cat Reman parts. You receive the same warranty and reliability as new products at substantial cost savings.
Machine Selection
Make detailed comparisons of the machines under consideration before purchase. Cat dealers can estimate component life, preventive maintenance cost, and the true cost of lost production.
Purchase
Look past initial price. Consider the financing options available as well as day-to-day operating costs. Look at dealer services that can be included in the cost of the machine to yield lower equipment owning and operating costs over the long run.
Customer Support Agreements
Cat dealers offer a variety of product support agreements, and work with customers to develop a plan that best meets specific needs. These plans can cover the entire machine, including attachments, to help protect the customer's investment.
Operation
Improving operating techniques can boost your profits. Your Cat dealer has videotapes, literature and other ideas to help you increase productivity, and Caterpillar offers certified operator training classes to help maximize the return on your machine investment.
Maintenance Services
Talk to your dealer about the range of available maintenance services. Repair option programs guarantee the cost of repairs up front. Diagnostic programs such as S·O·SSM Analysis and Coolant Sampling and Technical Analysis help 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.
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Standard Equipment
- ELECTRICAL
- Alarm, backup
- Alternator, 75 amp
- Batteries (4), 12V Maintenance Free, High Output
- Electrical System, 24V
- Lighting System - Tractor
- Lighting System - Scraper
- Starting Receptacle - tractor engine
- OPERATOR ENVIRONMENT
- Air Conditioner (includes heater and defroster)
- Cigarette Lighter and Ashtray
- Coat Hook
- Diagnostic Connection Port (12V)
- Dome Courtesy Light
- Gauge Group
- Horn
- Implement Control Joystick
- Rearview Mirrors
- Radio Ready (two bays, speakers, 5-amp converter)
- ROPS Cab with Sound Suppression and Pressurization
- Static Seatbelt
- Seat, Air Suspension, Caterpillar Comfort, cloth
- Steering Wheel - tilt and telescoping
- Storage Compartment
- Throttle Lock
- Transmission Hold
- Windows - sliding side, swingout
- Windshield - laminated glass
- Windshield Wiper/Washer - front and rear
- POWER TRAIN
- Engine
- Braking System
- Transmission
- OTHER STANDARD EQUIPMENT
- Air dryer
- Cushion hitch
- Extended Life Coolant, -36° C (-33° F)
- Fast Oil Change
- Locks, vandalism protection
- Product Link ready
- Tires / Rims - 37.25-R35 radial
- Tow Pins - front and rear