789C Mining Truck Dimensions All dimensions are approximate Shown with Dual Slope Body 14 12 13 11 10 15 16 17 18 19 20 21 Height to Top of ROPS Overall Body Length Inside Body Length Overall Length Wheelbase Rear Axle to Tail Ground Clearance Dump Clearance Loading Height – Empty 10 Rear Sidewall Height 11 Inside Body Depth – Max 12 Overall Height – Body Raised Dual Slope 5495 mm 18 ft 11 630 mm 38 ft in 8154 mm 26 ft in 12 177 mm 39 ft 11 in 5700 mm 18 ft in 3617 mm 11 ft 10 in 1173 mm ft 10 in 1330 mm ft in 5206 mm 17 ft in Flat Floor 5495 mm 18 ft 11 630 mm 38 ft in 8154 mm 26 ft in 12 177 mm 39 ft 11 in 5700 mm 18 ft in 3617 mm 11 ft 10 in 1173 mm ft 10 in 1562 mm ft in 5715 mm 18 ft in 1067 mm 2613 mm 960 mm 2650 mm ft in ft in 11 902 mm 39 ft in ft in ft in 11 950 mm 39 ft in 13 Centerline Front Tire Width 14 Engine Guard Clearance 15 16 17 18 19 20 Overall Canopy Width Outside Body Width Inside Body Width Front Canopy Height Rear Axle Clearance Centerline Rear Dual Tire Width 21 Overall Tire Width Dual Slope 5430 mm 17 ft in Flat Floor 5430 mm 17 ft in 1195 mm ft 11 in 1195 mm ft 11 in 7674 mm 6940 mm 6500 mm 6150 mm 1225 mm 4622 mm 25 ft in 22 ft in 21 ft in 20 ft in ft 15 ft in 7974 mm 7558 mm 7112 mm 6182 mm 1225 mm 4622 mm 26 ft in 24 ft 10 in 23 ft in 20 ft in ft 15 ft in 6926 mm 22 ft in 6926 mm 22 ft in 789C Mining Truck Retarding Performance To determine retarding performance: Add lengths of all downhill segments and, using this total, refer to proper retarding chart Read from gross weight down to the percent effective grade Effective grade equals actual % grade minus 1% for each 10 kg/t (20 lb/ton) of rolling resistance From this weight-effective grade point, read horizontally to the curve with the highest obtainable gear, then down to maximum descent speed brakes can properly handle without exceeding cooling capacity The following charts are based on these conditions: 32° C (90° F) ambient temperature, at sea level, with 37R57 tires NOTE: Select the proper gear to maintain engine rpm at the highest possible level, without overspeeding the engine If cooling oil overheats, reduce ground speed to allow transmission to shift to the next lower speed range Typical Field Empty Weight 154 244 kg (340,000 lb) Load 176 900 kg (390,000 lb) Load Gross Weight 100 50 200 300 100 400 150 500 200 600 250 lb x 1000 700 300 30% 350 kg x 1000 25% 15% 1st Gear 2nd Gear 10% Effective Grade (Favorable) 20% 3rd Gear 4th Gear 5% 5th Gear 6th Gear 0 10 20 10 30 15 20 40 25 50 30 60 35 Speed Continuous Grade Length 70 40 80 km/h 45 50 mph 789C Mining Truck Retarding Performance Typical Field Empty Weight 154 244 kg (340,000 lb) Load Gross Weight 176 900 kg (390,000 lb) Load 0 100 200 300 400 500 600 50 100 150 200 250 700 300 lb x 1000 350 kg x 1000 25% 30% 1st Gear 15% 2nd Gear 3rd Gear 4th Gear 5th Gear 10% 6th Gear Effective Grade (Favorable) 20% 5% 0 10 20 10 30 15 20 40 25 50 60 30 35 70 40 80 km/h 45 50 mph Speed Grade Distance — 450 m (1475 ft.) Typical Field Empty Weight 154 244 kg (340,000 lb) Load Gross Weight 176 900 kg (390,000 lb) Load 0 100 200 300 400 500 600 50 100 150 200 250 700 300 lb x 1000 350 kg x 1000 25% 30% 1st Gear 15% 2nd Gear 10% 3rd Gear 4th Gear 5th Gear 6th Gear 10 20 10 30 15 20 40 25 50 30 60 35 5% 70 40 Effective Grade (Favorable) 20% 45 Speed Grade Distance — 600 m (1975 ft.) 80 km/h 50 mph 789C Mining Truck Retarding Performance Typical Field Empty Weight 154 244 kg (340,000 lb) Load Gross Weight 176 900 kg (390,000 lb) Load 0 100 200 300 400 500 600 50 100 150 200 250 700 300 lb x 1000 350 kg x 1000 25% 30% 1st Gear 15% 2nd Gear 3rd Gear 4th Gear 5th Gear 10 20 30 10 15 20 40 25 10% 6th Gear 50 5% 60 30 35 Effective Grade (Favorable) 20% 70 40 80 km/h 45 50 mph Speed Grade Distance — 900 m (2950 ft.) Typical Field Empty Weight 154 244 kg (340,000 lb) Load Gross Weight 176 900 kg (390,000 lb) Load 0 100 200 300 400 500 600 700 50 100 150 200 250 300 lb x 1000 350 kg x 1000 25% 30% 15% 1st Gear 2nd Gear 10% 3rd Gear 4th Gear 5th Gear 5% 6th Gear 0 10 20 10 30 15 20 40 25 50 30 60 35 70 40 Effective Grade (Favorable) 20% 45 Speed Grade Distance — 1500 m (4900 ft.) 80 km/h 50 mph 789C Mining Truck Gradeability/Speed/Rimpull To determine gradeability performance: Read from gross weight down to the percent of total resistance Total resistance equals actual percent grade plus 1% for each 10 kg/t (20 lb/ton) of rolling resistance From this weight-resistance point, read horizontally to the curve with the highest obtainable gear, then down to maximum speed Usable rimpull will depend upon traction available and weight on drive wheels Typical Field Empty Weight 176 900 kg (390,000 lb) Load 37.00-R57 Tires Gross Weight kg x 1000 90 50 lb x 1000 200 40 50 60 70 100 150 200 500 kg x 1000 600 700 1000 lb x 1000 E L 30% 20% 25% 15% 10% 8% 3rd Gear 50 6% 4th Gear 4% 5th Gear 15 Rimpull 300 300 2nd Gear 20 150 200 1st Gear 100 30 10 80 100 1st Gear 70 50 40 30 6th Gear 20 2% 10 Total Resistance (Grade plus Rolling) 20 Torque Converter Drive Direct Drive 0 10 15 20 25 30 35 40 45 50 mph 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 km/h Speed 789C Mining Truck Optional Equipment With approximate changes in operating weights Optional equipment may vary Consult your Caterpillar Dealer for specifics kg Bodies Body extensions (dual slope): Tail Sideboards1 Body heat (exhaust) Body and tail extension liners2 Full-length liner Tail extension liner3 Brake oil recirculating (custom) Brakes, extended life disc Display, external payload LED, LH/RH Fuel tanks 850 gal/3222 L 1,000 gal/3785 L lb see chart below 770 1300 36 1,700 2,866 80 7633 338 127 – 64 16,828 745 280 – 141 1197 1383 2,640 3,050 Heater, fuel recirculation type, non-electric Heater, engine coolant and oil 120-volt external power source Hub odometer – km (miles) Muffler Oil Renewal System Prelube system Rim, spare for 37.0-R57 tire Road Analysis Control (RAC) Starting system Air (TDI Turbine) Air (IR Turbine) Variable speed fan, Rockford Vessels – EU Wiggins (custom) kg lb 227 7.7 11 1542 15 500 17 25 3,400 13 –5 23 259 40 –10 50 570 88 Increases capacity to 120 m3/157 yd3 Minimum yield strength 900 mPa/9000 Bar/130,500 psi; 400 Brinell steel Use with full liners when tail extension used Weight/Payload Calculation (Example) Chassis Body Mounting Group Tires (6) 37.0-R57 Rims (6) 29-57 Total Weight Debris Allowance (4% of Total Wt.) Body Weight Liners (optional) Tail Extension (optional) Side Boards (optional) Gross Machine Weight (Empty) Flat Floor 69 853 kg 154,000 lb 816 kg 1,800 lb 18 370 kg 40,500 lb 9253 kg 20,400 lb 98 293 kg 216,700 lb Dual Slope 69 853 kg 154,000 lb 862 kg 1,900 lb 18 370 kg 40,500 lb 9253 kg 20,400 lb 98 339 kg 216,800 lb 3900 kg 30 018 kg 1905 kg 8,700 lb 66,200 lb 4,200 lb 134 173 kg 295,800 lb 3900 kg 27 045 kg 9453 kg 771 kg 1297 kg 140 852 kg Includes: common arrangement, 100% fuel, starting system, seats, fan arrangement, exhaust system Flat Floor with grid liner Flat Floor with optional rear third liner Dual Slope with optional full liner 8,700 lb 59,625 lb 20,840 lb 1,700 lb 2,860 lb 310,525 lb