Suction Fan - Nilfisk RS 850 Instructions D'utilisation

ENGLISH
Problem

SUCTION FAN

The suction fan is noisy
The suction fan turns but it is not effi cient
The suction fan does not turn
SUCTION INLET AND SKIRT
The suction inlet does not collect debris
effi ciently
The suction inlet does not lift
SUCTION INLET AND SKIRT
The suction inlet does not lower
The suction inlet does not shift sideways
The skirt opening force is not suffi cient
The skirt does not open/close
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INSTRUCTIONS FOR USE
Not-lubricated fan bearings
Worn fan bearings
The motor is faulty
The dust fi lters 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 inlet position is incorrect
Open electrical contact
The control valve assembly is stuck
The cylinder gaskets are worn
There is no pressure at the hydraulic system
The fuse is blown
Open lifting push-button
Open joystick safety push-button
Relay board failure
The solenoid valve is burnt
The suction fan is off
There is no pressure at the parachute valve
Lack of pressure in the control valve assembly
solenoid valve
The fuse is blown
Deactivated broom switch
Open lowering push-button
Open joystick safety push-button
Relay board failure
The solenoid valve is burnt
Lack of pressure in the cylinder because of
worn gaskets
The fuse is blown
Open left shifting push-button
Open right shifting push-button
Open safety push-button
Relay board failure
The solenoid valve is burnt
The skirt opening pressure is incorrect
The switch is deactivated
The solenoid valve is burnt
33015123(3)2008-02
Possible cause
RS 850
Remedy
Lubricate
Replace
Repair
Clean
Clean
Replace
Replace/adjust
Adjust the pump pressure
Repair
Replace
Replace
Check the suction inlet and skirt height and
operation
Repair the electrical system
Repair
Overhaul the cylinder
Check the pump pressure
Replace
Replace
Replace
Overhaul
Replace
Activate
Check the suction fan control valve assembly
pressure
Check the pressure
Replace
Activate
Replace
Replace
Overhaul
Replace
Overhaul the cylinder
Replace
Replace
Replace
Replace
Replace
Replace
Adjust the opening pressure
Activate
Replace