GENERAL SPECIFICATIONS

GENERAL SPECIFICATIONS

ENGINE

The engine complies with the regulations relative to fume emissions "TIER2".

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 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. Thermostat setting ..................................82 ÷ 93 °C Max. opening ..................................................95 °C Temperature in upper tank Maximum allowed ...................................... 101,6 °C Minimum recommended ................................100 °C Fuel system 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.

Air intake

Dry air cleaner with replaceable paper cartridges, turbo charged by turbocharger type HOLSET HX55 TURBO equipped with WASTGATE valve and after cooler.

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 Central reduction with bevel gear set at the centre of the rear transmission housing. Single reduction final drive. Planetary gear final drive. Reduction ratio 1 : 15.6. Oil-bath lubrication.

STEERING DIFFERENTIAL The steering differential provides the steering of the machine without stopping the track chain, transmitting continuously power to both track chains when steering, also with tight turns. With both track chains moving, it is possible to push larger loads at maximum speed as well. The steering occurs by increasing the speed of one track chain and the slowing-down of the other one, in equal measure. The speed differential makes the machine steer. The steering system operates as a differential and it is composed of: a pump, a hydraulic motor and the relevant controls actuated by a single movement of the fingers.

BRAKES

Oil-bath disc brakes

The single pedal in the cab actuates simultaneously the brakes of both track chains, both as service and emergency devices. The machine is prevented from moving with the parking brakes engaged. A manual system provides the disengagement of the brakes when there is no hydraulic pressure, to provide the towing of the machine in the event of failure.

Parking brake: automatically engaged, by lowering the transmission safety lever or engine inoperative.

HYDRAULIC SYSTEM The hydraulic system, fully load-sensing, controls with the best efficiency, the hydraulic power required by the steering/equipment circuits. The delivery on the steering circuit is prioritised when power is requested at the same time, on the equipment controls. The circuit is composed of a variable displacement piston pump and an hydraulic motor, distributing power appropriately to each track chain during the steering. UNDERCARRIAGE

Composed by two frames of a boxed and welded structure type. The frames are connected frontally by a swinging cross-member and are hinged at the rear on the PIVOT-SHAFT.

Lubricated track chains. Seven permanently lubricated bottom rollers and two support rollers for each track frame. Sprockets with replaceable sectors toothed crown. Permanently lubricated idlers, with hydraulic track chain tensioner.

-Number of bottom rollers per track chain:...........7 -Number of support rollers per track chain:..........2 -Number of shoes per track chain:....................44 -Width of standard shoes:.........................610 mm optional: ...............711 mm

ELECTRICAL SYSTEM

Power voltage 24 Volt.

Alternator: DELCO REMY 70 Amp.

Starter motor: DELCO REMY 9.5 kW (type 42 MT) Starter motor with solenoid operated automatic pinion engagement.

Batteries: Two 12 Volt batteries connected batteries, 180 Amp. Maintenance-free type.

CAB

Modular type cab, elastically mounted on elastic blocks, integrated by FOPS safety structure. The cab ensures an excellent visibility of the blade and the rear attachments for maximum productivity. Also, the cab ensures maximum comfort to the operator at all times.

WEIGHT AND SPEEDS The weight of the machine with HSU bulldozer blade plus arms and lifting cylinders plus linkages, without ripper, safety cab, fluids and operator: 35,900 kg (79,150 lbs)

Maximum speeds (forward-reverse) in km/h:

Speeds I II III

- forward 3.8 6.1 10.3 - reverse 4.4 7,1 11.4

RIPPER (optional)

Model ...................................................... RPMD350

Of a parallelogram type, with welded plate element frame. Three position tool bar with a semi curved type tool, with interchangeable tips. Controlled by 4 double stroke hydraulic cylinders. Weight: ....................................3,200 kg (7,050 lbs)

AUXILIARY APPLICATIONS

Some of the equipment described and illustrated in this Manual are provided in determined markets to satisfy specific requirements. Other devices and special applications are provided upon request, in agreement with the Sales Organisation.