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USER MANUAL
44
33014576(4)2008-02 A
RS 850
Problem
Possible cause
Remedy
SUCTION FAN
The suction fan is noisy
Not-lubricated fan bearings
Lubricate
Worn fan bearings
Replace
The motor is faulty
Repair
The suction fan turns but it is not effi cient
The dust fi lters are clogged
Clean
The suction pipe is clogged
Clean
The suction pipe is cut/torn
Replace
The gasket between the suction inlet and the
hopper is broken or misadjusted (replace or
adjust)
Replace/adjust
There is no pressure at the suction system
motor
Adjust the pump pressure
The suction fan does not turn
The control valve assembly is stuck
Repair
The motor is faulty
Replace
Pump failure
Replace
SUCTION INLET AND SKIRT
The suction inlet does not collect debris
effi ciently
The suction inlet position is incorrect
Check the suction inlet and skirt height and
operation
The suction inlet does not lift
Open electrical contact
Repair the electrical system
The control valve assembly is stuck
Repair
The cylinder gaskets are worn
Overhaul the cylinder
There is no pressure at the hydraulic system
Check the pump pressure
The fuse is blown
Replace
Open lifting push-button
Replace
Open joystick safety push-button
Replace
Relay board failure
Overhaul
The solenoid valve is burnt
Replace
SUCTION INLET AND SKIRT
The suction inlet does not lower
The suction fan is off
Activate
There is no pressure at the parachute valve
Check the suction fan control valve assembly
pressure
Lack of pressure in the control valve assembly
solenoid valve
Check the pressure
The fuse is blown
Replace
Deactivated broom switch
Activate
Open lowering push-button
Replace
Open joystick safety push-button
Replace
Relay board failure
Overhaul
The solenoid valve is burnt
Replace
The suction inlet does not shift sideways
Lack of pressure in the cylinder because of
worn gaskets
Overhaul the cylinder
The fuse is blown
Replace
Open left shifting push-button
Replace
Open right shifting push-button
Replace
Open safety push-button
Replace
Relay board failure
Replace
The solenoid valve is burnt
Replace
The skirt opening force is not suffi cient
The skirt opening pressure is incorrect
Adjust the opening pressure
The skirt does not open/close
The switch is deactivated
Activate
The solenoid valve is burnt
Replace
Содержание RS 850
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