4
3550
GENERAL SPECIFICATIONS ENGINE
Fuel system
The engine complies with the regulations relative to fume emissions "TIER2".
The fuel pump sucks the fuel from the tank. between the tank and the fuel pump, the fuel flows through two interchangeable cartridge fuel filters, one a water separator, the other filtering the impurities in the fuel.
Type ..................... CUMMINS QSM 11-330/365 HP Direct injection, turbocharged, after-cooled, 4-stroke diesel Bore ............................................................ 125 mm Stroke ......................................................... 147 mm Total displacement ........................................ 10.82 l
Air intake Dry air cleaner with replaceable paper cartridges, turbo charged by turbocharger type HOLSET HX55 TURBO equipped with WASTGATE valve and after cooler.
Compression ratio ....................................... 16.3 : 1 6 in-line cylinders, firing order ..................1-5-3-6-2-4 Max. net power at flywheel: - 221 kW at 2100 rpm - 253 kW at 1800 rpm Maximum torque (at 1400 rpm) ............ 167,4 daNm
Lubrication Forced lubrication by gear type pump. Minimum allowable lubrication: - At low idle ..................................... 0.8 bar (12 Psi) - At nominal speed ........................ 2.04 bar (35 Psi) Quantity of oil in the sum .... 35 litres (9.2 U.S. Qts.)
Coolant system Water, circulated by centrifugal pump, integrally mounted. The coolant flows from the oil heat exchanger in the block, then passing to the cylinder head. Radiator equipped with 8-blade blowing fan. Water circulation from the engine to the radiator regulated by thermostat.
TRANSMISSION Hydraulic torque converter with maximum stall ratio 2.3 : 1. "Power shift" transmission, with three forward and three reverse speeds, with electric FINGER TIP CONTROL. Neutral button cutting-off directly the speed engaged, shifting the transmission into neutral. AUTO SHIFT function button. Safety device lever that in "locked" position prevents the gear shifting of the transmission and engages automatically the service brakes. Oil cooling of the torque converter/transmission circuit by oil-air radiator. Transmission oil filtration by two full flow filters; one metal mesh and magnetic rod on suction, the other on the delivery with built-in by-pass valve.
Final drives
Thermostat setting .................................. 82 ÷ 93 °C
Central reduction with bevel gear set at the centre of the rear transmission housing.
Max. opening .................................................. 95 °C
Single reduction final drive.
Temperature in upper tank
Planetary gear final drive.
Maximum allowed ...................................... 101,6 °C
Reduction ratio 1 : 15.6.
Minimum recommended ................................ 100 °C
Oil-bath lubrication.
Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)
