Nilfisk-ALTO SR 1450 B-D Safety Systems, Main Technical Data, Dashboard, Hydraulic system

USER MANUAL

Dashboard

Fitted on the upper part of the frame and under the steering wheel, the dashboard houses the machine warning lights and instrumentation.

Hydraulic system

In the first circuit a variable delivery pump feeds the drive hydraulic motor (rear wheel). In the second circuit a gear pump feeds a lever double-acting distributor. The distributor operates the lifting cylinders and the broom motors. All circuits are protected by suction filters and safety valves.

Electrical system

SR 1450 D: 12 V electrical system supplied by an alternator operated by the engine. The circuits are protected by lamellar fuses housed in a relevant fuse box.

SR 1450 B: power electrical system supplied by a 36 V battery. The service electrical system is supplied by a 12 V power supply. The circuits are protected by lamellar fuses housed in a relevant fuse box.

Stability

Machine stability depends on the conditions in which it is used.

If the machine is used within the conditions of use specified in the manual, it is stable. To this end, the following tests were carried out under the same conditions on a prototype identical to the series model and no stability problems arose. The conditions were:

Flat ground with good surface conditions:

–Transfer maximum speed: 13 km/h (SR 1450 D)

Transfer maximum speed: 8 km/h (SR 1450 B)

–Working speed: from 1 to 8 km/h

–Bending radius (maximum speed of 12 km/h): 3 m (SR 1450 D)

–Bending radius (maximum speed of 7 km/h): 3 m (SR 1450 B)

–Bending radius (speed of 5 km/h): 0 m

On sloping ground with good surface conditions and maximum longitudinal slope of 20%:

–Bending radius (maximum speed of 5 km/h): 3 m

–Bending radius (speed of 1 km/h): 0 m Maximum crossfall while in transfer: 15%. Maximum crossfall at 5 km/h: 20%.

The tests were carried out with lowered and empty hopper. For different conditions of use, the machine operator should be able to assess the limits of the machine and should, in any case, follow the indications laid down in the manual.

Information on brooms

Side brooms (2, Fig. E)

–Polypropylene side broom

–Polypropylene and steel side broom

–Steel side broom

–Nylon side broom

Main brooms (12, Fig. E)

–Natural fibre and polypropylene main broom

–Polypropylene main broom

–Polypropylene and steel main broom

–Nylon main broom

Brooms with a moplen shaft or with different bristles can be supplied on request.

SAFETY SYSTEMS

The machine is provided with an operator's seat sensor that stops the machine as soon as the operator leaves the seat.

MAIN TECHNICAL DATA

SR 1450 D

General data	Values
Weight in running conditions (without	720 Kg
operator)
Length	1,880 mm
Width	1,170 mm
Height	1,470/2,230 mm
Speed	0/13 Km/h
Gradeability	16%
Sweeping range (main broom only)	800 mm
Sweeping range with one side broom	1,150 mm
Sweeping range with two side brooms	1,450 mm
Side broom diameter	550 mm
Main broom length	800 mm
Hopper capacity	115 litres
Hopper maximum load	120 Kg
Dumping height	0/1,420 mm
Filtering system	5 m2
Diesel engine	Lombardini Focs
	LDW 702
Tyres	3.00/8
Superelastic wheels	3.00/8
Fuel tank	10 litres
Hydraulic tank	32 litres
Engine oil pan capacity	1.6 litres
Transmission	Hydrostatic
Steering	Mechanical
Brake	Hydraulic
Parking brake	Mechanical
Sweeping system	Self-levelling device
Controls	Hydraulic

33014811(1)2005-07 A 7