Drive direct current motor

USER MANUAL

		Every 150	Every 200	Every 400	Every 6	Every	Every time
Maintenance		Every 150	Every 200	Every 400	Every 6	Every	a check is
Maintenance		hours	hours	hours	months	year	a check is
		hours	hours	hours	months	year	carried out
							carried out

Commutator	Ensure that the surface along which the carbon
	brushes slide is covered with an even, shiny,
	transparent light grey film.
	Check that there are no black marks or burns
	between the commutator segments and on the
	commutator outer crown.
	Ensure that the commutator surface is not lined,
	deeply grooved or burnt on the segment in or out
	edges.
	Check that the brooms have not grooved the
	commutator surface and that the insulating mica
	does not protrude from the copper segment.
	Check that the commutator is clean and that there
	are no burns on the segments; if necessary, clean
	the commutator as described.
	Check eccentricity.
	Clean the commutator with special rubber sticks. If
	necessary, clean between the segments.
Carbon	Check the carbon brush for wear. It is worn out
brushes	when more than half of its total length has been
	consumed. Check that it slides freely in the brush
	holder, that it is pressed correctly by the spring and
	that the spring is still elastic.
	Ensure that the surface along which the carbon
	brushes slide is evenly and highly polished and
	that any lines or porosity are extremely small and
	of similar dimensions.
	Check the wire for wear and ensure that the
	connection terminals are well tightened.
	Ensure that there are no big lines, deep grooves,
	craters, burns or splinters on the carbon brush
	edge and that all the carbon brushes are worn in
	the same way.
	Check the housing for wear and clearance.
	Brushes usually last from 6 months to 1 year,
	depending on use.
	Check the carbon brush and coupling pressure.
	When the warning light turns on, the carbon
	brushes need to be replaced, even if 300 hours
	have not been reached.

Terminals	Check that supply bolt nuts are well tightened and
	that the insulating materials are in good condition.
Fan	Ensure that air intakes are not clogged and that the
	fan turns freely.
Bearings	Check the temperature and the vibration and noise
	degree.
Insulation	Use a megger, especially when the environment is
	wet, to check the insulation value: it should never
	be less than 2 MOhm.
Screws	Check that the screws are not loose.
	Check that there are no faulty contacts in the
	electrical connections which could lead to local
	overheating.
Windings	General cleaning. Check that the insulation to
	ground is less than 2 MOhm.

33014816(1)2005-07 A

SR 1700 2WD B specifications

The Nilfisk-ALTO SR 1700 2WD B is a powerful ride-on scrubber dryer, specially designed for medium to large indoor areas such as retail spaces, warehouses, and industrial facilities. Built with efficiency and user comfort in mind, this advanced cleaning machine provides exceptional performance with several key features and innovative technologies that set it apart from its competitors.

One of the standout features of the SR 1700 2WD B is its effective dual-brush system that facilitates thorough cleaning of various floor types. The dual rotating brushes ensure an even, deep clean and can easily remove ingrained dirt and grime, leaving surfaces spotless. Furthermore, the adjustable brush pressure allows operators to customize cleaning according to specific surface requirements, optimizing performance while minimizing wear on brushes.

Equipped with a highly efficient vacuum system, the Nilfisk-ALTO SR 1700 2WD B excels in liquid recovery. It effectively picks up water and cleaning solution, resulting in safer, cleaner floors that dry quickly. This feature is particularly beneficial in high-traffic environments where slip hazards must be minimized.

The SR 1700 2WD B also features a reliable and easy-to-use control panel, which makes operation straightforward for any user. The intuitive design reduces the learning curve, allowing operators to concentrate on cleaning rather than grappling with complicated controls. Additionally, the ergonomic driving position enhances comfort during longer shifts, reducing fatigue and improving productivity.

Safety is a critical aspect of the Nilfisk-ALTO SR 1700 2WD B. The machine is designed with several safety features, including an automatic shut-off function to prevent accidents in case of operator error. Furthermore, the low center of gravity design improves stability while maneuvering, particularly in tight spaces and corners.

Moreover, the Nilfisk-ALTO SR 1700 2WD B is built to be environmentally friendly. It effectively reduces water and chemical consumption through its efficient cleaning system, contributing to sustainable cleaning practices. The robust build quality ensures a long lifespan, reducing the need for frequent replacements and minimizing waste.

Overall, the Nilfisk-ALTO SR 1700 2WD B combines cutting-edge technology with user-friendly design, offering reliability, efficiency, and superior cleaning results. Its combination of superior suction, adjustable brush pressure, and safety features make it an excellent choice for any facility looking to enhance its cleaning operations. The machine not only meets but exceeds the expectations of modern cleaning environments.