Safety Functions; Reverse Gear Buzzer; Hopper Lifting/Lowering Lever Safety Flange; Suction Inlet And Broom Lifting/Lowering Lever Safety Flange - Nilfisk Advance RS 501 Manuel D'utilisation

SAFETY FUNCTIONS

The machine is equipped with the following safety functions.

REVERSE GEAR BUZZER

The machine is equipped with a sensor and a buzzer to indicate that the machine is moving in reverse.

HOPPER LIFTING/LOWERING LEVER SAFETY FLANGE

The hopper lifting/lowering lever can be activated only after having lifted the safety flange.

SUCTION INLET AND BROOM LIFTING/LOWERING LEVER SAFETY FLANGE

The suction inlet and broom lifting/lowering lever can be activated only after having lifted the safety flange.

SENSOR FOR ENGINE START-UP INHIBITION WHEN THE DRIVE PEDAL IS PRESSED

The machine is equipped with a sensor that do not allow for engine start up when the drive pedal is pressed.

TROUBLESHOOTING

The following table shows the most common problems that may arise during the use of the machine, the possible causes and
the suggested remedies to solve them.
NOTE
The sweeper is equipped with 3 "minitest" plugs (1, 2 and 3, Fig. AN) to measure the hydraulic pressure on
the component.
WARNING!
The suggested remedies must be performed by qualified personnel, according to the instructions shown in
this Manual, if present, otherwise contact a Nilfisk-Advance Service Center, where it is possible to consult
the Service Manual.
For explanation or information, contact a Nilfisk-Advance Service Center.

PROBLEMS AND REMEDIES

Problem
BROOMS
The brooms do not clean correctly
The brooms do not rotate
SUCTION FAN
The suction fan is noisy
The suction fan rotates but suction is not
efficient
The suction fan does not rotate
33015501(2)2006-10 A
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Possible cause
The brooms are not adjusted correctly
Broom speed is not correct
Oil leaks from the hydraulic system
fittings/hoses
Hydraulic motor failure
The accessory system pump does not
pressurize the oil in the circuit
Hydraulic motor failure
Clogged dust filters
Clogged suction pipe
Cut/torn suction pipe
Broken or wrongly positioned gasket between
the suction inlet and the hopper
Lack of pressure in the suction fan motor
drive pump
Stuck control valve assembly
Motor failure
Pump failure
USER MANUAL
Remedy
Adjust
Adjust the speed
Repair/replace
Replace
Check the oil pressure in the hydraulic
system
Repair
Clean
Clean
Replace
Replace/adjust
Adjust the pump pressure
Repair
Replace
Replace
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