Nilfisk-ALTO RS 850 - Manual (Page 136)

ENGLISH USER MANUAL
22 33014576(4)2008-02 A RS 850
HOPPER DUMPING
The maximum hopper dumping height is 63.78 in (1,620 mm).
Dump the hopper according to the following procedure.
Turn off the dust control system water pump with the switch (27, Fig. D).
If open, close the dust control system taps (10, 11, 12, Fig. E).
Lift the 3rd broom by pushing the joystick (46, Fig. D) rearward.
Lift the suction inlet and side brooms by pressing the push-button (37, Fig. D).
Stop the 3rd broom and side broom rotation with the switch (29, Fig. D).
Turn off the suction fan with the lever (8, Fig. E).
If necessary, shift the 3rd broom arm to working mode, by moving the joystick (46, Fig. D) to left.
If the machine must be transported to an appointed dumping area, engage the parking brake (13, Fig. E), get out of the
machine and bring the 3rd broom safety arm from the position (2, Fig. H) (disengaged) to the position (1) (engaged), by
engaging the tooth (3) on the bracket (4).
Drive the machine to the appointed dumping area.
If the hopper may contain a lot of water, it is possible to drain it before lifting and dumping the hopper according to the following
procedure:
Engage the parking brake with the lever (13, Fig. E) and get out of the machine.
Open the left upper lid (9, Fig. G).
Disengage the hose (26, Fig. F) and drain the water from the hopper.
Reinstall the hose (26, Fig. F).
Close the left upper lid (9, Fig. G).
WARNING!
Perform the hopper dumping on a solid and level ground, to avoid machine unbalance.
Keep people away from the machine and especially from the hopper (7, Fig. G).
Loosen the side knobs (1, Fig. J) and open the rear shoote by turning it from the position (2) to the position (3).
Carefully lift the hopper (7, Fig. G), by pressing the push-button (43, Fig. D) and the safety push-button (45).
WARNING!
Do not move the machine when the hopper is lifted!
If machine movement with lifted hopper cannot be prevented, be sure to drive slowest possible speed to avoid
lateral instability.
Open the hopper lid (44, Fig. G) with the switch (21, Fig. D); keep the switch pressed until the lid is totally opened.
Carefully dump the hopper (7, Fig. G), by pressing the push-button (40, Fig. D) and the safety push-button (45). Dump the
debris from the hopper.
When the dumping is completed, return the hopper to the horizontal position, by pressing the push-button (39, Fig. D) and the
safety push-button (45).
Lower the hopper (7, Fig. G) completely, by pressing the push-button (44, Fig. D) and the safety push-button (45). Keep the
push-buttons pressed, until the warning light (18) turns off.
If necessary, check for hopper metal fi lter clogging, according to the following procedure:
Engage the parking brake and turn off the engine.
Lift the hopper lid manually and secure it with the support rod (17, Fig. F).
As shown in the Maintenance chapter, remove the fi lters (15 and 12, Fig. F) and check for clogging. If the fi lters are
clogged, clean them according to the relevant procedure. Reinstall the fi lters.
Disengage the support rod (17, Fig. F) and place it in its housing.
Start the engine and close the hopper lid (44, Fig. G) with the switch (21, Fig. D); keep the switch pressed until the warning
light turns off.
The machine is ready to start working again.
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