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USER MANUAL
32
33014576(4)2008-02 A RS 850
Suction pipe cleaning (after every use)
Thoroughly clean the suction pipe (6, Fig. F) inside, up to the suction inlet, with pressurized water.
Carefully check the suction pipe gasket (5, Fig. F) for integrity, and replace it if necessary.
Suction fi lter and fan cleaning (after every use)
Inside the hopper, remove the fasteners (16, Fig. F) of the suction fi lter (15).
Remove the suction fi lter (15, Fig. F).
Operating in the compartment (13, Fig. F), wash the fan (1, Fig. P) with pressurized water; check that all fan sectors (2) are
clean.
Clean the suction fi lter (1, Fig. Q) with pressurized water.
Install the suction fi lter and secure it with the fasteners (16, Fig. F).
Remove the lid support rod (17, Fig. F) and lower the hopper (7, Fig. G) according to the instructions shown in the relevant
paragraph.
Turn the ignition key (24, Fig. D) to OFF position and remove it.
Breather fi lter cleaning (after every use)
With a ladder and the help of an assistant, disengage the fasteners (26, Fig. G) of the breather fi lter hood (27).
Open the hood (1, Fig. R) and install the safety pins (2).
Remove the mounting screws (1, Fig. S), then remove the breather fi lter (2).
Clean the breather fi lter (1, Fig. T) with pressurized water.
Install the breather fi lter and its hood performing steps from 15 to 17 in reverse order.
Suction fan bearing lubrication (after every use)
Open the left side lid (9, Fig. G).
Lubricate the suction fan bearings with the grease nipples (1, Fig. U).
Grease quantity to be applied:
4 - 5 pumping, in case of a manual pump.
15 - 20 seconds of injection, in case of an air pump.
Close the left side lid (9, Fig. G).
DUST CONTROL SYSTEM NOZZLE AND FILTER CLEANING
WARNING!
Protect body parts (eyes, hair, hands, etc.) properly, when performing cleaning procedures using compressed
air or water gun.
Preliminary operations
Engage the parking brake (13, Fig. E).
Turn the ignition key (24, Fig. D) to OFF position and remove it.
Cleaning of nozzles and fi lters on side brooms
Unscrew the ring nuts (1, Fig. V).
Remove and clean the nozzles (2, Fig. V) and fi lters (3) with compressed air. Remove calcium deposits. If necessary, replace
the fi lters (3).
Install the fi lters and nozzles, and secure them with the ring nuts.
Cleaning of nozzles and fi lters in the suction pipe, from suction inlet to hopper
Empty the hopper (7, Fig. G); if it contains a small quantity of waste, it is not necessary to dump it.
Drive the machine on a solid and level ground, then engage the parking brake (13, Fig. E).
Lift the hopper (7, Fig. G), according to the procedure shown in the relevant paragraph.
Turn the ignition key (24, Fig. D) to OFF position and remove it.
To avoid that the hopper lowers by accident, install the lifted hopper support rods (3, Fig. F), according to the instructions
shown on the relevant paragraph.
Operating inside the suction pipe (6, Fig. F), with a 0.55 in (14 mm) socket wrench, unscrew the nozzle (1, Fig. X) and remove
the fi lter (2) (check the actual position of the nozzle).
Clean the nozzle (1, Fig. X) and fi lter (2) with compressed air. Remove calcium deposits. If necessary, replace the fi lter (2).
Install the fi lter and nozzle in the reverse order of removal.
Remove the lifted hopper support rods (3, Fig. F) and lower the hopper (7, Fig. G) (see the procedure in the relevant
paragraphs).
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