Case 1850K Tier 2 Crawler Dozer Operators Manual 76093503GB - PDF DOWNLOAD

Page 19

4

1850K

GENERAL SPECIFICATIONS ENGINE Engine "emissioned" Net flywheel power: 1850K Tier2 LT/XLT (190 Hp gross) kw Net power

rated @ 2000 rpm

hp

peak @ 1700 rpm

rated @ 2000 rpm

peak @ 1700 rpm

DIN 6270

136

142

182

190

SAE J1349

134

140

180

187

ISO 9249

135

141

182

189

EEC 80/1269

136

142

182

190

1850K Tier2 LGP (207 Hp gross) Net power

kw

hp

rated @ 2000 rpm

peak @ 2000 rpm

DIN 6270

147

197

SAE J1349

145

194

ISO 9249

146

196

EEC 80/1269

147

197

Make and model ................... CUMMINS 6CTAA8.3 Type ...... turbocharged, aftercooled, direct injection, 4-cycle diesel Number of cylinders .............................................. 6 Bore x stroke ............ 114 x 135 mm (4.49 x 5.31 in) Displacement ................................ 8267 cc (504 in3) Governed rpm ............... STD/XLT version 2000 rpm version LGP 2000 rpm Maximum torque .... 84.2 daNm (621 lb ft) at 1500 rpm Lubrication ..................... full pressure by gear pump The machine may be operated up to 2500 m (8202 ft) altitude without derating the engine. Engine complies with TIER 2 CE 97/68, and with U.S. standards CARB & EPA. Lubrication Combined replaceable oil filter; the upper section includes the total flow filtering element, whereas the lower section contains the by-pass element. Minimum permissible lube pressure: - At low idle .................................. 0.69 bar (10 Psi) - At nominal rpm ........................... 2.07 bar (30 Psi) Oil sump capacity ............................... 19 L (5 USG)

Cooling system Circulated water by centrifugal pump, integrally mounted. The coolant flows from the oil heat exchanger into the cylinder block, then passes through the cylinder head. Radiator equipped with seven blade blowing fan. Water circulation from engine to radiator regulated by thermostat. Setting of thermostat ......... 81 to 83 °C (178 to 181 °F) Max. opening ...................................... 95 °C (203 °F) Upper tank temperature Max. allowed .................................... 100 °C (212 °F) Max. recommended ............................ 70 °C (158 °F) Fuel system In-line BOSCH type PES.MW injection pump, with RSV governor. BOSCH drilled injectors, set at 260 + 10 bar (3771 + 145 psi). A mechanical fuel pump pulling the fuel from the reservoir. The fuel flows through a pre-filter between reservoir and fuel pump. Two replaceable cartridge filters, one with water separator and one filtering the particles in the fuel. Air intake Dry air cleaner with replaceable cartridges, turbocharger, equipped with WASTEGATE valve.

TRANSMISSION Hydraulic torque converter with max. stall torque ratio 2.280 : 1. "Powershift" transmissions providing three forward and three reverse speeds, with ELECTRONIC sliding control. Moving the joy-stick to neutral the transmission is disengaged. AUTO KICK DOWN function button and AUTO SHIFT function button. Safety lock lever preventing in "lock" position the FORWARD + REVERSE operation of the joy-stick and automatically engaging the service brakes. Torque converter/transmission oil cooling by a radiator, side by side to the water radiator. Transmission oil filtered by two total flow filters; one metal mesh on suction line, the other cartridge type with by-pass valve on delivery line. Final drives Central bevel gear type reduction in the centre of rear transmission housing. Double reduction modular type final drives. Reduction ratio: 1 : 12.286.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)


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