Nilfisk-Advance SR 1700 2WD B User Manual

Contents

USER MANUAL33014816(1)2005-07 A 17Closed pocket filter replacement– Remove the hood.– Unscrew the cover (1, Fig. X) screws and remove thecover.– 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 covergasket is air-tight and that the filter is positionedcorrectly.Machine releasingTo tow the machine, release the hydrostatic transmission byturning the screw (1, Fig. AB) counterclockwise.ACCESSORY BATTERYService instructionsFor a tubular armoured drive storage battery consisting of 24cells type 6 PZS 690 S - 48 V - Capacity 690 Ah withdischarge in 5 hours.UseThe electrical machine should never be used up to the batterycomplete discharge. To optimize the battery use, especially interms of length of service, only 90% of its capacity should beallowed to run down over a 5-hour period. The machineshould therefore stop operating when the fluid capacity in thecells drops to a specific weight of 1.13-1.14, that is the weightwhich corresponds to 90% of its capacity. If the density is notmeasured, the machine should be stopped at the first signs ofperformance drop and the battery should be recharged eitherimmediately or, preferably, after a few hours of rest. The workshift length should be programmed taking this requirementinto consideration; otherwise the battery deterioratesprematurely.OverchargeBatteries which are in good condition do not generally requireovercharging.Overcharging is recommended for batteries which have notbeen used for over 15 days, because completely run down orfaulty etc.The overcharging current should never be more than half thenormal charging current for a period lasting approx. 9 hours,divided into three periods (3 hours of charging and 2 hours ofrest).Special overcharging treatments, where required, will berecommended by the technicians.Maintenancea) Topping upThe cell electrolyte level should be kept at approx. 1 cmabove the bored surface (splash guard) which can be seeninside 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 isreached. The electrolyte level should be topped up equally inall 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, notrequiring any particular precision. Topping up could never bedone evenly by using funnels, pipes etc., even if the operationwere carried out with the utmost care.The topping up frequency depends on the type of efforts towhich the battery is subjected as well as on charging andtemperature. It is, however, important to check the electrolytelevel and density once a week after charging.If topping up is required increasingly more frequently, this isdue to excessive or prolonged charging. Check and calibratethe rectifier immediately.b) CleaningThe battery should always be kept clean and dry. This is ofextreme importance to avoid oxide formation on the liftinghooks or on the battery container edges etc. as this leads tocurrent leakage and corrosion.Periodically clean the entire surface of the battery with adamp sponge so as to remove the film of acid which tends todeposit during charging.If the container has a discharge hole (unfortunately not allcontainers have one, or can have one) it is possible to cleanthe surface with a water jet, thus obtaining far superior resultsthan with a sponge.It is not necessary to dry: since all acid traces have beenremoved, the cells become dry in a short time.