Troubleshooting; Problems And Remedies - Nilfisk RS 501 Instrucciones De Uso

ENGLISH

TROUBLESHOOTING

The following table shows the most common problems that may arise when using 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 Service Center, where it is possible to consult the Service Manual.
For explanation or information, contact a Nilfisk 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 turns but it is not efficient
The suction fan does not turn
SUCTION INLET AND SKIRT
The suction inlet does not collect debris
efficiently
The suction inlet does not lift
The suction inlet does not lower
The skirt opening force is not sufficient
The skirt does not open/close
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INSTRUCTIONS FOR USE
Possible cause
The brooms are not adjusted correctly
The broom speed is not correct
There are oil leaks from the hydraulic system
fittings/hoses
The motor is faulty
The accessory system pump does not
pressurize the oil in the circuit
The motor is faulty
The dust filters are clogged
The suction pipe is clogged
The suction pipe is cut/torn
The gasket between the suction inlet and the
hopper is broken or misadjusted (replace or
adjust)
There is no pressure at the suction system
motor
The control valve assembly is stuck
The motor is faulty
Pump failure
The suction fan is not engaged
The suction inlet position is incorrect
The control valve assembly is stuck
The cylinder gaskets are worn
There is no pressure at the hydraulic system
There is no pressure at the parachute valve
The skirt opening pressure is incorrect
The switch is deactivated
The solenoid valve is burnt
33015498(3)2008-02
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
Engage the suction fan
Check the suction inlet and skirt height and
operation
Repair
Overhaul the cylinder
Check the pump pressure
Check the suction fan control valve assembly
pressure
Adjust the opening pressure
Activate
Replace
RS 501