Nilfisk-Advance SR 1700 2WD B, User Manual

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USER MANUAL
33014816(1)2005-07 A 17
Closed pocket filter replacement
– Remove the hood.
– Unscrew the cover (1, Fig. X) screws and remove the
cover.
– Remove the mounting bars by unscrewing the screws
(1, Fig. Y).
– Remove the filter (1, Fig. Z).
– Disconnect the filter shaker (1, Fig. AA) cable.
– Replace the filter (1, Fig. Z).
– Reconnect the filter shaker.
– Reinstall the filter (1, Fig. Z) in the hopper.
– Reinstall the mounting bars.
– Tighten the mounting screws (1, Fig. Y).
– Reinstall the cover.
– When installing the filter, make sure that the cover
gasket is air-tight and that the filter is positioned
correctly.
Machine releasing
To tow the machine, release the hydrostatic transmission by
turning the screw (1, Fig. AB) counterclockwise.
ACCESSORY BATTERY
Service instructions
For a tubular armoured drive storage battery consisting of 24
cells type 6 PZS 690 S - 48 V - Capacity 690 Ah with
discharge in 5 hours.
Use
The electrical machine should never be used up to the battery
complete discharge. To optimize the battery use, especially in
terms of length of service, only 90% of its capacity should be
allowed to run down over a 5-hour period. The machine
should therefore stop operating when the fluid capacity in the
cells drops to a specific weight of 1.13-1.14, that is the weight
which corresponds to 90% of its capacity. If the density is not
measured, the machine should be stopped at the first signs of
performance drop and the battery should be recharged either
immediately or, preferably, after a few hours of rest. The work
shift length should be programmed taking this requirement
into consideration; otherwise the battery deteriorates
prematurely.
Overcharge
Batteries which are in good condition do not generally require
overcharging.
Overcharging is recommended for batteries which have not
been used for over 15 days, because completely run down or
faulty etc.
The overcharging current should never be more than half the
normal charging current for a period lasting approx. 9 hours,
divided into three periods (3 hours of charging and 2 hours of
rest).
Special overcharging treatments, where required, will be
recommended by the technicians.
Maintenance
a) Topping up
The cell electrolyte level should be kept at approx. 1 cm
above the bored surface (splash guard) which can be seen
inside the cells when looking through the plug hole.
When the level drops, leaving the splash guard uncovered,
distilled water must be added until the required level is
reached. The electrolyte level should be topped up equally in
all cells so that its density is even.
This accuracy can only be obtained by means of the
“IMPIDOR” topping up device which is easy to use, not
requiring any particular precision. Topping up could never be
done evenly by using funnels, pipes etc., even if the operation
were carried out with the utmost care.
The topping up frequency depends on the type of efforts to
which the battery is subjected as well as on charging and
temperature. It is, however, important to check the electrolyte
level and density once a week after charging.
If topping up is required increasingly more frequently, this is
due to excessive or prolonged charging. Check and calibrate
the rectifier immediately.
b) Cleaning
The battery should always be kept clean and dry. This is of
extreme importance to avoid oxide formation on the lifting
hooks or on the battery container edges etc. as this leads to
current leakage and corrosion.
Periodically clean the entire surface of the battery with a
damp sponge so as to remove the film of acid which tends to
deposit during charging.
If the container has a discharge hole (unfortunately not all
containers have one, or can have one) it is possible to clean
the surface with a water jet, thus obtaining far superior results
than with a sponge.
It is not necessary to dry: since all acid traces have been
removed, the cells become dry in a short time.