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798 AC Electric Drive Mining Truck
SAFETY
- Greater visibility thanks to wide field of view from the cab and radial retard grid that improves right-hand view.
- Safer access and egress with 600-mm-wide (23.6-in-wide) ladders, flat deck, toe kicks, and optional power access stair attachment.
- Confidence-building features such as anti-rollback, traction controls, reverse shift inhibitor, Automatic Retarding Control, and door sensor warning for park brake application.
- Full dynamic retarding through a compact radial grid, backstopped by the proven design of Caterpillar four-corner oil-cooled brakes, for stable handling and confident stopping.
- Fully independent secondary brake system that provides emergency controllability with a hydraulically actuated secondary brake pedal that serves as a backup to electronic controls.
PRODUCTIVITY
- The most efficient electric drive truck in its size class — moving more tonnes per liter (tons per gallon) and hauling more material faster—so you can move more over the course of a shift, or haul the same amount of material with fewer trucks.
- Available with higher horsepower to boost productivity in deeper pits, plus electronically-selectable lower horsepower settings that allow the 798 to better align with mixed fleets.
- Ease of operation and reduced costs thanks to deep integration of Cat engine, AC drive system, hydraulics and controls.
- End-to-end visibility of all truck parameters for optimized fuel efficiency, speed on grade and parasitic loads across the operating range.
- Excellent slow speed control within service areas as well as superior motor torque and acceleration pulling away from the shovel.
OPERATOR COMFORT
- Ergonomic cab layout, excellent all-around visibility, and controls, levers and switches that are positioned for ease of use.
- Automatic climate control and reduced vibration and sound.
- Next generation seat with height adjuster, adjustable shoulder stock to keep the seatbelt from rubbing, and seat back, side and lumbar bolsters to increase stability.
SERVICEABILITY
- High displacement, low rpm rating and conservative horsepower ratings, which mean more time on the haul road and less time in the shop.
- Inlet manifolds and turbochargers that are located outside of the engine’s V, giving the service technicians more space to work on top of the engine and within the engine bay.
- Sealed and pressurized inverter cabinet that requires no cleaning, eliminating hundreds of hours of maintenance over the life of the truck/
- Engine walkways and service platforms, modular components, service-friendly layout and ground-level grouped service points.
- Extended oil change interval (up to three times) with standard engine equipment including Centrifugal Oil Filter (COF) and Self-Cleaning Filter (SCF).
DURABILITY AND LONG LIFE
- First overhaul life of 25,000 hours for lower cost of ownership, with proven C175 engine and electric drive system.
- Highly validated and proven straight frame rail design that eliminates the bends and breaks that can occur at stress concentrations.
- Outstanding durability delivered by box section construction that uses Caterpillar proprietary steel specification for excellent welding characteristics.
- Increased frame life thanks to deep section main rails in critical areas of the frame lower stress levels.
- Frame, powertrain, engine and components that are built to be rebuilt — delivering multiple lives of like-new performance at a fraction-of-new price.
PROVEN AC DRIVE & POWERTRAIN
- High voltage system that operates at lower current than most competitive trucks, contributing to higher efficiency, lower heat generation, smaller and lighter components, and longer component life.
- Radial style retarding grid with AC electric motor that requires no regular motor maintenance and is quieter and lighter than box grids.
- State-of-the-art high voltage IGBTs for maximum AC drive system efficiency, and a dual-bearing brushless alternator that delivers long life and less maintenance, with no shimming required.
- AC Drive dynamic retarding for continuous retarding power; AC electric motor that reduces maintenance; and state-of-the-art high voltage IGBTs for maximum AC drive system efficiency.
- Variable hydraulic blower fan, which provides optimized cooling even at idle for increased component performance and life.
SUSTAINABILITY
- Designed to use less fuel, which reduces engine emissions and carbon footprint.
- Optional U.S. EPA Tier 4 Final / EU Stage V engine, which reduces NOx by 62% and particulates by 93% when compared to Tier 1 emissions.
- Reduced waste thanks to Centrifugal Oil Filter (COF), standard self-cleaning engine filter, extended oil change intervals and reduced oil usage.
- Engines compatible with diesel fuel blended with lower-carbon intensity fuels such as biofuels and renewable fuels, plus power options like trolley.
- Cat Rebuild and Cat Reman programs, which preserve raw materials, conserve energy and reduce emissions.
TECHNOLOGY SOLUTIONS
- Equipped with standard Product Link™ Elite monitoring system, which delivers health and payload information to keep performance high and enable proactive maintenance planning.
- Factory-ready for fully integrated Cat MineStar™ Command for hauling, an autonomous hauling solution proven to increase productivity up to 30%.
- Optional MineStar Fleet, a fleet monitoring system, to measure, manage and maximize the overall hauling operation.
- Optional MineStar Detect proximity detection system, which uses cameras to give operators a better view of what’s happening around their equipment.
- Optional in-cab Cat Driver Safety System (DSS) intervenes when operator fatigue or distraction are detected.
CAT BODIES
- Bodies designed to fit with the chassis, sized to meet payload requirements and work as part of the truck system.
- High Efficiency (HE) dump body option that is lightweight, simplified and durable.
- With unique minimal structure design, HE body provides long life while minimizing weight for increased payload.
- HE body sized and configured to meet the specific needs of the mine, dictated by fragmentation, abrasion, cohesion and the loading tool.
| Engine | |
|---|---|
| Gross Power - SAE J1995 | 2610 kW (3500 hp) |
| Engine Model | Cat® C175-16 |
| Net Power - SAE J1349 | 2539 kW (3405 hp) |
| Optional Gross Power - SAE J1995 | 2312 kW (3100 hp) |
| Rated Speed | 1800 r/min (1800 r/min) |
| Emissions Rating | Fuel Optimized |
| Bore | 175 mm (6.9 in) |
| Stroke | 220 mm (8.7 in) |
| Displacement | 85 l (5187 inu00b3) |
| Note (1) | Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator. |
| Note (2) | U.S. EPA Tier 4 Final / EU Stage V available for applicable markets. |
| Note (3) | Additional fuel optimized selectable power ratings: 2312 kW / 3,100 hp |
| Engine - High Altitude Only | |
|---|---|
| Engine Model | Cat® C175-20 |
| Gross Power SAE J1995:2014 | 3095 kW (4150 hp) |
| Net Power - SAE J1349:2011 | 2983 kW (4000 hp) |
| Rated Speed | 1750 r/min (1750 r/min) |
| Emissions Rating | Fuel Optimized |
| Bore | 175 mm (6.9 in) |
| Stroke | 220 mm (8.7 in) |
| Displacement | 106 l (6469 inu00b3) |
| Note 1 | Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator. |
| Note 2 | Additional fuel optimized selectable power rating: 2983 kW / 4,000 hp |
| Weights - Approximate | |
|---|---|
| Rated Gross Machine Weight | 623690 kg (1375000 lb) |
| Chassis Weight | 205852 kg (453826 lb) |
| Body Weight Range | 38 833 - 43 275 kg (85,611 - 95,406 lb) |
| Note (1) | Consult your tire manufacturer for maximum tire load. |
| Note (2) | Chassis weight with 100% fuel, hoist, body mounting group, rims, and tires. |
| Note (3) | Body weight varies depending on how body is equipped. |
| Nominal Rated Payload | 372 t (410 ton (US)) |
| Weight Distributions - Approximate | |
|---|---|
| Front Axle - Empty | 47 % (47 %) |
| Rear Axle - Empty | 53 % (53 %) |
| Front Axle - Loaded | 33 % (33 %) |
| Rear Axle - Loaded | 67 % (67 %) |
| Note | Weight distributions optimized with Cat body. |
| AC Drive System | |
|---|---|
| Total Reduction Ratio | 35:01:00 |
| Top Speed - Loaded | 64 km/h (40 mile/h) |
| Generator/Alternator | Brushless, engine mounted, dual bearing |
| Controls | IGBT Inverter Technology, air cooled, pressurized cabinet with filtration |
| Wheel Motor | Cat high-torque AC induction, rear axle mounted |
| Cooling System | Cat variable speed, hydraulically driven cooling system |
| Tires | |
|---|---|
| Rims | 44" x 63" Rims |
| Standard Tires | 59/80 R63 |
| Note (1) | Quick Change Rims optional. |
| Note (2) | Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities. |
| Braking System | |
|---|---|
| Service Brakes | Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated |
| Front Wet Disc Brake Surface Area | 146081 cmu00b2 (22642 inu00b2) |
| Rear - Wet Disc Brake Surface Area | 211163 cmu00b2 (32730 inu00b2) |
| Standards | Service and Secondary: ISO 3450:2011 |
| Electric Retarding | Radial Grid Design |
| Dynamic Retarding Power - Continuous | 4086 kW (5480 hp) |
| Parking Brakes | Four-corner, Multi-disc, Spring Applied, Hydraulically Released |
| Load Brake | Rear service brakes |
| Note | Anti-Lock Brake System (ABS) optional with CMD package |
| Capacity - HE Body - 100% fill factor | |
|---|---|
| Struck | 129-200 mu00b3 (168-261 ydu00b3) |
| Heaped (SAE 2:1) | 218-276 mu00b3 (285-361 ydu00b3) |
| Note | Contact your local Cat dealer for body recommendations. |
| Body Hoists | |
|---|---|
| Type | Twin, two-stage hydraulic cylinders with snubbing valve. |
| Pump Flow - High Idle | 964 l/min (257.3 gal/min) |
| Relief Valve Setting - Raise | 20884 kPa (3029 psi) |
| Body Raise Time - High Idle | 21 s (21 s) |
| Body Lower Time - Float | 22 s (22 s) |
| Body Power Down- High Idle | 17.5 s (17.5 s) |
| Note (1) | Twin, two-stage hydraulic cylinders mounted outside main frame; double-acting cylinders in both stages. |
| Note (2) | Power raise in both stages; power down capability in both stages. |
| Note (3) | Automatic body-lower modulation reduces impact on frame. |
| Suspension | |
|---|---|
| Type | Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments |
| Effective Cylinder Stroke - Front | 254 mm (10 in) |
| Effective Cylinder Stroke - Rear | 133.35 mm (5 in) |
| Service Refill Capacities | |
|---|---|
| Fuel Tank | 4922 l (1300 gal (US)) |
| Fuel Tank (Tier 4) | 4542 l (1200 gal (US)) |
| Diesel Exhaust Fluid Tank | 379 l (100 gal (US)) |
| Cooling System | 799 l (211 gal (US)) |
| Crankcase | 310 l (82 gal (US)) |
| Final Drive - Each | 254 l (67 gal (US)) |
| Hydraulic System - Including Tank | 1458 l (385 gal (US)) |
| Hydraulic Tank | 1121 l (296 gal (US)) |
| Grease Tank | 41 kg (90 lb) |
| Note (1) | DEF Tank only available for U.S. EPA Tier 4 Final / EU Stage V engine option |
| Service Refill Capacities - High Altitude Only | |
|---|---|
| Fuel Tank | 7571 l (2000 gal (US)) |
| Cooling System | 1032 l (273 gal (US)) |
| Crankcase | 471 l (124 gal (US)) |
| Hydraulic Tank | 1032 l (273 gal (US)) |
| Hydraulic System (includes tank) | 1296 l (342 gal (US)) |
| Cab | |
|---|---|
| Air Conditioning | HFC - 134A refrigerant: 21,600 Btu/h |
| Heater / Defroster | 24600 Btu/h (24600 Btu/h) |
| Note | Ambient capabilities down to -15C (5F) for heater/defroster and up to 50C (122F) for air conditioning. |
| ROPS Standards (1) | ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer. |
| FOPS Standards | FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer. |
| Sound | |
|---|---|
| Sound Standards | The operator sound pressure level, 75 dB(A), measured according to ISO 6394:2008 and ISO 6396:2008. |
| Steering | |
|---|---|
| Steer Angle | 39 u00b0 (39 u00b0) |
| Turning Diameter - Front | 32.4 m (106.3 ft) |
| Steering Standards | Steering Standards: ISO 5010:2007 |
| Note | Turning Diameter (ISO 7457:1997) |
| Dimensions (Approximate) | |
|---|---|
| Height - Top of ROPS | 6720 mm (22.1 ft) |
| Overall Length | 15679 mm (51.44 ft) |
| Wheel Base | 6674 mm (21.9 ft) |
| Rear Axle - Tail | 4898 mm (16.07 ft) |
| Dump Clearance - Empty | 1744 mm (5.72 ft) |
| Loading Height - Empty | 7784 mm (25.54 ft) |
| Overall Height - Body Raised | 14890 mm (48.85 ft) |
| Centerline Front Tire Width | 7028 mm (23.06 ft) |
| Front Axle Clearance - Loaded | 855 mm (2.81 ft) |
| Overall Canopy Width (with rock deflectors) | 10103 mm (33.15 ft) |
| Outside Body/Canopy Width (without rock deflectors) | 9639 mm (31.62 ft) |
| Inside Body Width | 8973 mm (29.44 ft) |
| Front Canopy Height - Empty | 7928 mm (26.01 ft) |
| Rear Axle Clearance - Loaded | 854 mm (2.8 ft) |
| Centerline of Rear Dual Tire Width | 5943 mm (19.5 ft) |
| Overall Tire Width - Empty | 9226 mm (30.27 ft) |
| Overall Length (High Altitude only) | 15810 mm (51.87 ft) |
| Note | Dimensions listed includes canopy deflectors |
Standard Equipment
- POWER TRAIN
- Cat® C175-16 Diesel Engine: 2610 kW (3,500 hp) Fuel Optimized , U.S. EPA Tier 2 equivalent (available for applicable markets)
- Cat® C175-16 Diesel Engine: 2610 kW (3,500 hp) U.S. EPA Tier 4 Final / EU Stage V (available for applicable markets)
- C175-16 Diesel Engine
– Turbocharging (4) / Aftercooled (ATAAC)
– Centrifugal oil filter
– Self-cleaning oil filter
– Charging Alternator (225 amp), brushless
– Pre-lubrication/engine
– Air cleaner with precleaner (4)
– Multi-point oil pressure sensing
– Exhaust – Muffler, Right Side Exit - Cat C175-20 Diesel Engine (High Altitude Only)
– 3095 kW (4,150 hp) Fuel Optimized (available for applicable markets)
– Centrifugal oil filter
– Self-cleaning oil filter
– Charging Alternator (225 amp), brushless
– Pre-lubrication/engine
– Air cleaner with precleaner (4)
– Multi-point oil pressure sensing
– Exhaust – Muffler, Right Side Exit - Braking system:
– Electric dynamic retarding with blended low speed
– Oil-cooled, Multi-disc (front and rear) – Service, Parking, Secondary
– Load Brake (rear axle only)
– Extended Life Brake Disc Material
– Automatic Retarder Control (ARC)
– Brake Release Motor (towing) - Cat® AC Drivetrain:
– AC generator
– AC induction motors (high-torque)
– IGBT motor control
– Radial retarding grid with AC motor control
– Programmable top speed
– TorqueBoost technology
– Traction control system - Directional Shift Management:
– Body-up reverse neutralizer
– Body-up shift inhibitor
– Reverse shift inhibitor
– Neutral coast inhibitor
– Neutral start inhibitor - Additional Features:
– Rear axle continuous lubrication and filtration
– Rear axle continuous oil cooling
- OPERATION AND CONTROLS
- Integrated ROPS/FOPS cab, insulated/sound suppressed
- Seat, operator, air suspension, adjustable, heated/cooled
- Seatbelt, operator, three point
- Seat, trainer, air suspension, adjustable
- Seatbelt, trainer, two point
- Steering wheel, tilt, telescopic, horn
- Horn, electric
- Directional shift lever
- Single Pedal Retarding & oil-cooled brake control
- Automatic Retard Control (ARC) toggle switch
- Load brake switch
- Windshield with tinted/safety glass
- Window, electric powered, operator/passenger
- Windshield Wipers (2), intermittent control and washer
- Visor (2)
- Storage rear of seats
- Cup holder (2)
- Dome courtesy light
- Entertainment radio ready with speakers and wiring harnesses
- Converter, 12V
- 12V DC power supply (1)
- Mirrors, standard (Left-Flat, Right-Convex)
- Fixed access ladder, left hand ground access
- Fixed access ladder, right hand round access (High Altitude Only)
- HVAC:
– Pressurized, filtered environment
– Air conditioner
– Heater/defroster - Metric or English gauges:
– Speedometer
– Tachometer
– Electric hour meter
– Fuel level
– DEF level (U.S. EPA Tier 4 Final / EU Stage V engines only)
– Hydraulic oil temperature
– Engine coolant temperature - Service & Information:
– Diagnostic connection port
– Electric engine control fault indicator
– Alarm, Park brake / open operator door
– Third party telematics port
– VIMS message center advisor
- ELECTRICAL
- Audible Alarm, backup
- Electrical system, 24V with fuses and breakers
- Batteries, 12V (8) 90 amp hour
- Ground level Battery charge receptacle
- Lighting, signals/service:
– Headlights (4 low beam, 4 high beam), LED
– Headlights (4 low beam, 2 high beam), LED (High Altitude only)
– Backup and marker/hazard, LED
– Directional signals (front and rear), LED
– Front stair access/service deck, LED
– Stop/tail lights, LED
– Engine compartment, LED
– Inverter energy warning lights, LED - Payload indicator, red/green
- Payload, digital display
- ADDITIONAL FEATURES AND EQUIPMENT
- Accumulators (Steering & Brake) – Australian and Canadian certified
- Automatic lubrication system
- Rotating component guards
- Mud Flaps
- Tow hooks and pins (front)
- Tow pin (rear) (empty truck only)
- 44 x 63 rims, six position (6)
- Fueling:
– 4922 L (1,300 gal) fuel tank (Fuel optimized engines only)
– 4543 L (1,200 gal) fuel tank (U.S. EPA Tier 4 Final / EU Stage V engines only)
– 379 L (100 gallon) DEF tank (U.S. EPA Tier 4 Final / EU Stage V engines only)
– Fuel filter with water separator
– 210 GPM Fast fill fuel system (Left and Right) - Service:
– Engine service platforms (2)
– ANSI or ISO service instructions
– S•O•S℠ sample points (hydraulic oil, engine coolant, engine oil)
– Ground level machine lockout (battery)
– Ground level engine shut-down
– Drivetrain lockout
– Drivetrain lockout at ground level (High Altitude only)
– Engine start lockout
– Auxiliary “buddy” dumping quick connect
– Auxiliary steering quick connect (towing)
- CAT® TECHNOLOGY PRODUCTS
- Cat® MineStar™ Detect (Radar and Camera) System
- Cat® Product Link™ Elite (Cellular)
- DUMP BODY
- High Efficiency (HE) body, 218-276 m³ (285-361 yd³)
– HE Body Mounting Group
– Rock ejectors (chain)
- High Efficiency (HE) body, 218-276 m³ (285-361 yd³)
- ANTIFREEZE
- Cat Extended Life Coolant (ELC) protects to –35° C (–30° F)
Optional Equipment
- POWER TRAIN
- Cat® C175-16 Diesel Engine: 2312 kW (3,100 hp) power setting (Fuel optimized / U.S. EPA Tier 2 equiv. engines only)
- Cat C175-20 Diesel Engine (High Alititude only): 2983 kW (4,000 hp) power setting, Fuel Optimized (available for applicable markets)
- Body heat exhaust
- OPERATION AND CONTROLS
- Throttle lock
- Timer, engine shutdown
- Heated mirrors (Left and Right)
- Powered access ladder, left hand ground access
- Language monitors: English, Spanish, Italian, Portuguese, Dutch, Norwegian, Swedish, Estonian, Latin, Lithuanian, Slovakian, Slovenian, Greek, Romanian, Russian, Polish, Czech, Hungarian, Icelandic, Finnish, Danish, Thai, Indonesian, Vietnam, Malaysian, Chinese
- OPERATIONS AND CONTROLS
- Powered access ladder, right hand ground access (High Altitude only)
- ELECTRICAL
- Lighting, signals/service:
– Fog lights, LED
– Work lights, LED
– Side profile lights, LED
– Dump body marker/stop lights, LED - Retarding indicator light, multi-color, cab exterior
- Payload, digital display
- Lighting, signals/service:
- ADDITIONAL FEATURES AND EQUIPMENT
- Fueling: 300 GPM Fast fill fuel system (Left and Right)
- Portable fire extinguisher
- Front bumper single-point center tow
- Wheel chocks (ANSI and ISO)
- 44 x 63 rims, quick change (2 quick change, 4 standard)
- Service:
– Inverter platform (rear access)
– Service Center, fast-fill
- CAT® TECHNOLOGY PRODUCTS
- Cat® MineStar™ Detect (Camera Only) System
- Cat® Product Link™ Elite (Satellite)
- Cat® MineStar™ Health
- Cat® MineStar™ Fleet
- Cat® MineStar™ Terrain
- Cat® MineStar™ Command-Ready
- Cat® MineStar™ Command
- Cat® Trolley Assist Attachment
- DUMP BODY
- HE rock box liner
- HE canopy rock deflectors
- HE rear tire rock deflectors
- HE impact liner
- Chain and solid bar
- Canopy Extension
- ANTIFREEZE
- Antifreeze/coolant protects to –50° C (–58° F)