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798 AC Electric Drive Mining Truck
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Weights - Approximate |
| Nominal Rated Payload |
410 ton (US) |
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| Rated Gross Machine Weight |
1375000 lb |
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| Chassis Weight |
453826 lb |
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| Body Weight Range |
38 833 - 43 275 kg (85,611 - 95,406 lb) |
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| Note (1) |
Consult your tire manufacturer for maximum tire load. |
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| Note (2) |
Chassis weight with 100% fuel, hoist, body mounting group, rims, and tires. |
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| Note (3) |
Body weight varies depending on how body is equipped. |
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Engine |
| Gross Power - SAE J1995 |
3500 HP |
825 HP |
605 HP |
| Engine Model |
Cat® C175-16 |
Cat® C27 |
Cat® C18 |
| Net Power - SAE J1349 |
3405 HP |
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| Optional Gross Power - SAE J1995 |
3100 HP |
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| Rated Speed |
1800 r/min |
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| Emissions Rating |
Fuel Optimized |
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| Bore |
6.9 in |
5.4 in |
5.7 in |
| Stroke |
8.7 in |
6 in |
7.2 in |
| Displacement |
5187 in³ |
1648 in³ |
1105 in³ |
| 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. |
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| Note (2) |
U.S. EPA Tier 4 Final / EU Stage V available for applicable markets. |
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| Note (3) |
Additional fuel optimized selectable power ratings: 2312 kW / 3,100 hp |
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| Rated Net Power - SAE J1349 |
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683 HP |
550 HP |
| Note |
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Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator. Specifications shown are for LRC model. |
Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator. |
| Rated Engine Speed |
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1700 r/min |
| Number of Cylinders |
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6 |
Service Refill Capacities - High Altitude Only |
| Fuel Tank |
2000 gal (US) |
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| Cooling System |
273 gal (US) |
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| Crankcase |
124 gal (US) |
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| Hydraulic Tank |
273 gal (US) |
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| Hydraulic System (includes tank) |
342 gal (US) |
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Service Refill Capacities |
| Fuel Tank |
1300 gal (US) |
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| Fuel Tank (Tier 4) |
1200 gal (US) |
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| Diesel Exhaust Fluid Tank |
100 gal (US) |
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| Cooling System |
211 gal (US) |
45 gal (US) |
33 gal (US) |
| Crankcase |
82 gal (US) |
24 gal (US) |
17 gal (US) |
| Final Drive - Each |
67 gal (US) |
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| Hydraulic System - Including Tank |
385 gal (US) |
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| Hydraulic Tank |
296 gal (US) |
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| Grease Tank |
90 lb |
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| Note (1) |
DEF Tank only available for U.S. EPA Tier 4 Final / EU Stage V engine option |
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| Fuel Tank Capacity |
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210 gal (US) |
140 gal (US) |
| Differential - Final Drives |
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38 gal (US) |
47 gal (US) |
| Steering System - Including Tank |
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14 gal (US) |
60 gal (US) |
| Brake/Hoist Hydraulic Tank |
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46.5 gal (US) |
38 gal (US) |
| Brake Hoist System |
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85 gal (US) |
60 gal (US) |
| Torque Converter - Transmission System |
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17 gal (US) |
Steering |
| Steer Angle |
39 ° |
31 ° |
31 ° |
| Turning Diameter - Front |
106.3 ft |
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| Steering Standards |
Steering Standards: ISO 5010:2007 |
ISO 5010:2007 |
ISO 5010:2007 |
| Note |
Turning Diameter (ISO 7457:1997) |
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| Turning Diameter |
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77.1 ft |
57.7 ft |
| Turning Circle - Clearance Diameter |
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85.6 ft |
66.6 ft |
AC Drive System |
| Total Reduction Ratio |
35:01:00 |
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| Top Speed - Loaded |
40 mile/h |
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| Generator/Alternator |
Brushless, engine mounted, dual bearing |
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| Controls |
IGBT Inverter Technology, air cooled, pressurized cabinet with filtration |
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| Wheel Motor |
Cat high-torque AC induction, rear axle mounted |
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| Cooling System |
Cat variable speed, hydraulically driven cooling system |
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Braking System |
| Service Brakes |
Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated |
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| Front Wet Disc Brake Surface Area |
22642 in² |
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| Rear - Wet Disc Brake Surface Area |
32730 in² |
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| Standards |
Service and Secondary: ISO 3450:2011 |
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| Electric Retarding |
Radial Grid Design |
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| Dynamic Retarding Power - Continuous |
5480 HP |
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| Parking Brakes |
Four-corner, Multi-disc, Spring Applied, Hydraulically Released |
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| Load Brake |
Rear service brakes |
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| Note |
Anti-Lock Brake System (ABS) optional with CMD package |
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Weight Distributions - Approximate |
| Front Axle - Empty |
47 % |
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| Rear Axle - Empty |
53 % |
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| Front Axle - Loaded |
33 % |
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| Rear Axle - Loaded |
67 % |
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| Note |
Weight distributions optimized with Cat body. |
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Capacity - HE Body - 100% fill factor |
| Struck |
129-200 m³ (168-261 yd³) |
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| Heaped (SAE 2:1) |
218-276 m³ (285-361 yd³) |
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| Note |
Contact your local Cat dealer for body recommendations. |
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Body Hoists |
| Type |
Twin, two-stage hydraulic cylinders with snubbing valve. |
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| Pump Flow - High Idle |
257.3 gal/min |
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| Relief Valve Setting - Raise |
3029 psi |
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| Body Raise Time - High Idle |
21 s |
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| Body Lower Time - Float |
22 s |
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| Body Power Down- High Idle |
17.5 s |
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| Note (1) |
Twin, two-stage hydraulic cylinders mounted outside main frame; double-acting cylinders in both stages. |
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| Note (2) |
Power raise in both stages; power down capability in both stages. |
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| Note (3) |
Automatic body-lower modulation reduces impact on frame. |
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Suspension |
| Type |
Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments |
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| Effective Cylinder Stroke - Front |
10 in |
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| Effective Cylinder Stroke - Rear |
5 in |
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Cab |
| Air Conditioning |
HFC - 134A refrigerant: 21,600 Btu/h |
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| Heater / Defroster |
24600 Btu/h |
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| Note |
Ambient capabilities down to -15C (5F) for heater/defroster and up to 50C (122F) for air conditioning. |
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| ROPS Standards (1) |
ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer. |
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| FOPS Standards |
FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer. |
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Engine - High Altitude Only |
| Engine Model |
Cat® C175-20 |
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| Gross Power SAE J1995:2014 |
4150 HP |
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| Net Power - SAE J1349:2011 |
4000 HP |
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| Rated Speed |
1750 r/min |
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| Emissions Rating |
Fuel Optimized |
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| Bore |
6.9 in |
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| Stroke |
8.7 in |
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| Displacement |
6469 in³ |
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| 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. |
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| Note 2 |
Additional fuel optimized selectable power rating: 2983 kW / 4,000 hp |
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Tires |
| Rims |
44" x 63" Rims |
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| Standard Tires |
59/80 R63 |
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| Note (1) |
Quick Change Rims optional. |
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| Note (2) |
Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities. |
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Dimensions (Approximate) |
| Height - Top of ROPS |
22.1 ft |
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| Overall Length |
51.44 ft |
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| Wheel Base |
21.9 ft |
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| Rear Axle - Tail |
16.07 ft |
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| Dump Clearance - Empty |
5.72 ft |
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| Loading Height - Empty |
25.54 ft |
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| Overall Height - Body Raised |
48.85 ft |
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| Centerline Front Tire Width |
23.06 ft |
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| Front Axle Clearance - Loaded |
2.81 ft |
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| Overall Canopy Width (with rock deflectors) |
33.15 ft |
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| Outside Body/Canopy Width (without rock deflectors) |
31.62 ft |
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| Inside Body Width |
29.44 ft |
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| Front Canopy Height - Empty |
26.01 ft |
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| Rear Axle Clearance - Loaded |
2.8 ft |
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| Centerline of Rear Dual Tire Width |
19.5 ft |
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| Overall Tire Width - Empty |
30.27 ft |
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| Overall Length (High Altitude only) |
51.87 ft |
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| Note |
Dimensions listed includes canopy deflectors |
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Sound |
| Sound Standards |
The operator sound pressure level, 75 dB(A), measured according to ISO 6394:2008 and ISO 6396:2008. |
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Weights |
| LRC Bare Chassis Weight without Hoist |
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75118 lb |
58414 lb |
| LRC Bare Chassis Weight with Hoist |
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76326 lb |
59223 lb |
| LRC Gross Vehicle Weight (Target) without Hoist |
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246503 lb |
180999 lb |
| LRC Gross Vehicle Weight (Target) with Hoist |
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246503 lb |
180999 lb |
| HRC Bare Chassis Weight without Hoist |
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76573 lb |
59567 lb |
| HRC Bare Chassis Weight with Hoist |
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77781 lb |
60376 lb |
| HRC Gross Vehicle Weight (Target) without Hoist |
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246503 lb |
180999 lb |
| HRC Gross Vehicle Weight (Target) with Hoist |
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246503 lb |
180999 lb |
| Note |
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LRC model is offered for lesser regulated countries. HRC model is offered for highly regulated countries. U.S. EPA Tier 4 Final / EU Stage V available for applicable markets. |
LRC model is offered for lesser regulated countries. HRC model is offered for highly regulated countries. U.S. EPA Tier 4 Final / EU Stage V available for applicable markets. |
ROPS |
| Tractor ROPS |
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85288 lb |
77430 lb |
Operating Specifications |
| Nominal Water Tank Capacity |
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15000 gal (US) |
11000 gal (US) |
Transmission |
| Forward - 1 |
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6.6 mile/h |
8 mile/h |
| Forward - 2 |
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9.3 mile/h |
10.9 mile/h |
| Forward - 3 |
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12.6 mile/h |
14.8 mile/h |
| Forward - 4 |
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16.8 mile/h |
19.8 mile/h |
| Forward - 5 |
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22.8 mile/h |
26.9 mile/h |
| Forward - 6 |
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30.7 mile/h |
36.2 mile/h |
| Forward - 7 |
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41.6 mile/h |
49.2 mile/h |
| Reverse |
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8.7 mile/h |
10.4 mile/h |
| Note |
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Maximum travel speeds with standard 24.00R35 (E4) tires |
Maximum travel speeds with standard 21.00R33 (E4) tires. |
Brakes |
| Brake Surface - Front |
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257 in² |
216 in² |
| Brake Surface - Rear |
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9497 in² |
7794 in² |
