Safety functions, Troubleshooting, User manual – Nilfisk-ALTO 580 P User Manual
Page 20: Hood safety switch, Emergency push-button, Hopper lifting cylinder safety valve
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ENGLISH
USER MANUAL
18
FLOORTEC R 580 P
146 2603 000(1)2005-03 A
SAFETY FUNCTIONS
The machine is equipped with the following safety
functions.
HOOD SAFETY SWITCH
Turns off the engine when the hood (13, Fig. C) is open.
EMERGENCY PUSH-BUTTON
It is located in a position (8, Fig. B) that is easily accessible
for the Operator.
It must be pressed in case of emergency, to stop all the
machine functions.
HOPPER LIFTING/LOWERING AND
OVERTURNING ENABLING SWITCH
It is in the position (1, Fig. B) and must be pressed and
held to activate the hopper lifting/lowering and overturning
switches.
HOPPER LIFTING CYLINDER SAFETY
VALVE
It is located on the hopper lifting cylinder.
It stops the hopper in the position it has reached (without
possibility for it to lower accidentally) if the hydraulic
system piping, feeding the lifting cylinder should break.
PETROL ENGINE STOP DEVICE IN CASE
OF INSUFFICIENT ENGINE OIL LEVEL
The petrol engine is equipped with an internal devices that
checks the correct engine oil level and stops the engine if
the level should be insufficient.
TROUBLESHOOTING
(*): For the related procedure, see the Petrol Engine User
Manual.
For further information, refer to the Service Manual,
available at any Nilfisk-Alto Service Center.
TROUBLE
REMEDY
The petrol engine does not
start if activated with the
ignition key.
Check that the hood (13, Fig. C) is closed.
Check that the engine oil level is sufficient (*).
Check that the petrol tank (8, Fig. V) contains the
appropriate kind of fuel.
Check that the petrol reaches the carburettor and
the petrol filter is clean (*).
Check that the spark plug produces a spark (*).
The petrol engine stops
during operation
Check that the engine oil level is sufficient (*).
Check that the petrol tank (8, Fig. V) contains the
appropriate kind of fuel.
Check that the petrol filter is clean (*).
The machine collects little
debris/dust.
Check that the dust filter (3, Fig. C) is not
clogged.
Check that the hopper (4, Fig. C) is not full.
Check that the skirts (16, 17, 18, 19, Fig. C) are
not broken or incorrectly adjusted.
Check that the brooms (10, 11, 12, Fig. C) are at
the correct height.
When the forward/reverse
gear pedal is pushed the
machine does not move, or
it moves slowly
Check that the parking brake (22 with 15, Fig. B)
has been released.
Check that the engine throttle lever (24, Fig. B) is
on MAX (maximum speed).
Check that the hydraulic oil level in the tank (6,
Fig. V) is correct.
Check that the centrifugal pulley (petrol
engine-drive pump coupling joint) operates
properly.
Check that the forward speed pedal is correctly
adjusted and it activates the drive pump
correctly.
The hopper does not lift
Check that the hydraulic oil level in the lifting unit
tank (19, Fig. V) is correct.
Check that the control electrical connectors are
correctly connected.
Check that the hopper is not excessively loaded
(hydraulic lifting capacity exceeded). In this case,
unload the hopper.
The hopper does not
overturn
Check that the hopper is lifted from the ground at
an height greater than 270 mm.
Check that the control electrical connectors are
correctly connected.
The hopper does not lower Before lowering the hopper by means of the
related switch (11, Fig. B), check that the hopper
has returned to the horizontal position by means
of the related switch (12, Fig. B).
Wait a few minutes to allow the lifting cylinder
hydraulic oil to flow out through its interior
parachute valve; if the valve is stuck, it could be
necessary to press the lowering switch (12, Fig.
B) again.
The brooms do not rotate
correctly.
Check that the broom control belt tension is
correct.
Turn the throttle lever (24 fig. B) to MAX
(maximum speed), and check that the centrifugal
pulley engages.
With the engine
compartment (13, Fig. C)
hood lifted, the petrol
engine keeps running.
Malfunction of the hood safety micro-switch.
Please contact the Nilfisk-Alto Service Center.