45
Instruction Manual
Possible causes
Trouble shootimg
9.3 Micromotor
Possible causes
Trouble shootimg
Water drips from micromotor
No spray from micromotor
(Check with/without angle)
Insufficient micromotor performance
Excessive warming of hand piece
Loose screw coupling
Soiled water
Inappropriately installed seal face
Hard water
Lime residues on seal face
Soft water
Pitting corrosion on seal face
Insufficient bleeding of control valve
Insufficient pressure difference air/water
Defective tappet gasket (macerated?)
Incorrect magnetic valve on control valve
Defective control valve
Defective magnetic valve
Air within the water system
Insufficiently pushed pedal 5-F
Cable break at pedal 5-F in F4
Defective magnetic valve for spray air
Clogged / defective water throttle
Excessive pressure at pressure
regulator A1 / A2
Activated chip blower
Insufficient voltage on level in question
Insufficient amount of cooling air
Defective pressure regulator A1
Retighten screw coupling hand-tight
Check water quality and replace water filter if
necessary
Replace water valve and tappet
(320.3069.01)
Replace water valve and tappet
(320.3069.01)
Replace water valve and tappet
(320.3069.01)
Open bleed screw
Adjust pressure values A1 / A2
Replace tappet to water valve
(320.3016.01)
Check NC or NO valve
Replace control valve
(320.7010.01)
Replace magnetic valve
(320.7056.01)
Retighten coupling at connector plug
Push pedal to maximum (operation)
Check cables (blue/red)
Replace magnetic valve
(320.7056.01)
Open to maximum/replace throttle
(320.3036.01)
Pressure regulator A1 = 4.3 - 4.8 bar
Pressure regulator A2 = 3.0 - 3.5 bar
Deactivate chip blower
Check/Adjust voltage on micromotor circuit
board
Adjust cooling air at control valve
Replace pressure regulator
(320.7007.01)
Insufficiently pushed pedal 5-F
Cable break at pedal 5-F Pedal in F4
Defective magnetic valve for spray air
Clogged / defective water throttle
Activated chip blower
Excessive pressure at pressure
regulator A1 / A2
Clogged tappet in water valve
Insufficient voltage on level in question
Incorrectly set pressure regulator A1
Push pedal to maximum (operation)
Check cables (blue/red)
Replace magnetic valve
(320.7056.01)
Open to maximum/replace throttle (320.3036.01)
Deactivate chip blower
Pressure regulator A1 = 4.3 - 4.8 bar
Pressure regulator A2 = 3.0 - 3.5 bar
Clean or replace tappet
(320.3016.01)
Check/Adjust voltage on valve print
Set pressure regulator A1 to 4,3 – 4,8 bar
No spray from turbine
(Check with/without angle)
Insufficient power output of turbine