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Kärcher BR 30/4 C, Service Manual

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Kärcher BR 30/4 C Service Manual Download Page 6

6 

English 5.906-434.0 Rev. 00 (12/10)

The brush contact pressure cannot be adjusted.
The brush roller has a diameter of 60 mm. It rotates 
at 1,450 rpm for the mains model and at 1,270 for the 
battery model.

BR 30/4 C Adv
To vacuum in corners, a vacuuming nozzle can be at-
tached to the vacuum pipe of this model.

3.6

Cleaning operations

Summary of Contents for BR 30/4 C

Page 1: ...English 5 906 434 0 Rev 00 12 10 1 BR 30 4 C BR 30 4 C Adv BR 30 4 C Bp Pack BR 4 300 Service Manual ...

Page 2: ...2 English 5 906 434 0 Rev 00 12 10 ...

Page 3: ...ush head BR 30 4 C Bp Pack only 16 4 5 9 Displays on the charger BR 30 4 C Bp Pack only 16 4 5 10 Control board BR 30 4 C Bp Pack only 17 4 5 11 Balance weight BR 30 4 C Bp Pack only 17 5 Basic settings and service procedures 18 5 1 Removing the appliance components 18 5 1 1 Replacing the main switch 18 5 1 2 Replacing the water pump switch 19 5 1 3 Replacing the brush roller intake 20 5 1 4 Repla...

Page 4: ... 0 089 099 0 BR 30 4 C 230V 50 60 Hz BR 4 300 34 7 2 Circuit diagram 0 089 149 0 BR 30 4 C 120 V 60 Hz 35 7 3 Circuit diagram 0 089 150 0 BR 30 4 C 100V 50 60 Hz 36 7 4 Circuit diagram 0 089 305 0 BR 30 4 C Bp Pack 37 8 Technical specifications 38 8 1 BR 30 4 C power models 38 8 2 BR 30 4 C Bp Pack 38 8 3 Exchange times 39 8 4 Tightening torques 39 8 5 Special tools 39 9 Documents 40 ...

Page 5: ...shing it and backwards by pulling it by the han dle The fresh water tank must be filled with the correct mixture of water and detergent prior to operation The detergent solution flows to the brush head via a water pump and is revacuumed by two vacuum bars Content of fresh water tank 3 7 l Content of wastewater reservoir 3 7 l The suction turbine M1 produces a vacuum pres sure in the wastewater res...

Page 6: ...annot be adjusted The brush roller has a diameter of 60 mm It rotates at 1 450 rpm for the mains model and at 1 270 for the battery model BR 30 4 C Adv To vacuum in corners a vacuuming nozzle can be at tached to the vacuum pipe of this model 3 6 Cleaning operations ...

Page 7: ...r tank lock 5 Release park position 6 Vacuum bar lift pedal 7 Cleaning head 8 Fresh water tank 9 Fresh water level display 10 Release of fresh water reservoir 11 Dirt water reservoir 12 Release wastewater reservoir 13 Carrying handle 14 Water pump switch 4 Setup and function 4 1 Front view BR 30 4 C Adv and BR 30 4 C ...

Page 8: ...tteries 2 x 25 2 VDC 8 Fresh water tank 9 Fresh water level display 10 Release of fresh water reservoir 11 Dirt water reservoir 12 Release wastewater reservoir 13 Carrying handle 14 Water pump switch 15 Charging station 1 16 Charging station 3 17 Charger 18 Mains cable 19 Battery at charging station 4 20 Charging station 2 21 Battery charge indicator 4 2 Front view BR 30 4 C Bp Pack ...

Page 9: ... air cover 6 Suction hose 7 Release park position 8 Suction tube connection 9 Suction pipe 10 Bellow 11 Vacuum bar holder BR 30 4 C Adv only 12 Suction nozzle BR 30 4 C Adv only 13 Vacuum bar BR 30 4 C Adv only 14 Suction tube handle BR 30 4 C Adv only 4 3 Rear view BR 30 4 C Adv and BR 30 4 C BR 30 4 C Bp Pack ...

Page 10: ... Rev 00 12 10 1 Park roller 2 Space roller 3 Rear vacuum bar 4 Brush roller 5 Front vacuum bar 6 Space roller The spacer rollers prevent the cleaning head from scraping on the floor when the brush is worn 4 4 View from below ...

Page 11: ...ed using the pedal for the vacuum bar lift Note Turn the appliance off before you activate the suction bar lift Otherwise the brush drive can be triggered The BR 4 300 does not have a suction bar lift 1 Dirt water reservoir 2 Fresh water tank 3 Wastewater inlet opening with seal 4 Suction pipe 5 Funnel for fresh water inlet 6 Suction air channel 7 Suction air stub with seal Î The fresh water reser...

Page 12: ...etergent 1 Water outlet valve 2 Tappet Î The water outlet valve is located at the bottom of the fresh water reservoir 1 Valve pin 2 Sieve Î When inserting it into the appliance the valve pin pushes the tappet into the water outlet valve and the water can flow to the water pump M2 Î The contaminated sieve can be removed for cleaning 1 Spring element The spring element pushes the wastewater reservoi...

Page 13: ... inlet opening Î In order to remove the lid open the lock and pull the lid off the wastewater reservoir upwards 1 Wastewater inlet opening 2 Water separator 3 Cover dirt water reservoir 4 Seal 5 Floater seal 6 Locking flap 7 Float Î The floater is located in the lid This floater closes up the air suction opening and suctioning is no longer possible Î The wastewater reservoir needs to be emptied Wi...

Page 14: ... suction pipe out of the suction pipe con nection toward the top 1 Suction pipe 2 Suction nozzle Î Attach the suction nozzle to the suction pipe 1 Dirt water reservoir 2 Fresh water tank 3 Rear vacuum bar 4 Cleaning head 5 Brush roller 6 Front vacuum bar 7 Water distribution bar 4 5 5 Water flow schematic ...

Page 15: ...he cleaning head 1 Vacuum bar lift pedal 2 Vacuum bar guide 3 Vacuum bar 4 Vacuum bar holder 5 Suction channel Î Press the release and pull the depleted battery out of the battery compartment Î Insert the charged batteries into the battery com partment and push in until they lock into place 4 5 6 Remove the cover from the cleaning head 4 5 7 Replace the batteries BR 30 4 C Bp Pack only ...

Page 16: ...minate in red and the sec ond battery pack will be switched on added Its charging status will be displayed via the LED as signed to it according to its violtage level After the second battery pack has been depleted both LEDs will light up red the appliance will auto matically switch off after 30 seconds 1 Red LED charge status display 2 Green LED charge status display 3 Illumination examples for g...

Page 17: ... have been discharged to 20 Volts In this case the display changes to red con tinuous light After 30 seconds the control will shut off automatically Relay test When switching on switching off or switching from one battery to another the printed circuit board is checked for sticky relays If a relay sticks the appli ance cannot be started up The printed circuit board will give out an error message b...

Page 18: ...ons from the main switch Î Push the main switch out of the top of the housing Î Install the new main switch in reverse order 1 Connector protective conductor cable 2 Connector pump Main switch check switch Î Connect a resistance gauge between the connec tion plug 1 and 1a or 2 and 2a Target value Main switch turned off 1 MOhm Main switch turned on 2 Ohm Note For the BR 30 4 Bp the switch must be p...

Page 19: ...over Î Remove the cable plug connections from the wa ter pump switch Î Press the water pump switch out of the housing cover from the inside out Î Install the new water pump switch in reverse or der Check the water pump switch Î Connect a resistance gauge between the connec tion plug 1 and 1a or 2 and 2a Target value Water pump switch turned off 1 MOhm Water pump switch turned on 2 MOhm 5 1 2 Repla...

Page 20: ...screws Î Remove cover 1 Toothed belt disc 2 Outer ball bearing 3 Gear belt Î Remove the drive unit from the cleaning head 1 Towing brush roller 2 Inner ball bearing 3 Toothed belt disc 4 Outer ball bearing Î Install the new drive unit in reverse order 5 1 3 Replacing the brush roller intake ...

Page 21: ...Water distribution bar Î Remove the brush roller see chapter Removing the brush roller 1 Water distribution bar 2 Rubber tab water distribution bar 3 Water outlet 4 Cover water distribution bar Î Pull the water distribution bar out of the cleaning head by the rubber tab Î Install the new water distribution bar in reverse or der press firmly onto the water outlet The water distribution bar has a co...

Page 22: ...um bar is locked with an au dible click Note The standard suction bar is not suitable for vacuum ing oil soiled floors In this case you must use oiltight suction lips Î Remove the front vacuum bar see chapter Re placing the vacuum bar 1 Fastening screws 8x cleaning head housing Î Unscrew locking screws 1 Fastening screws 2x wheel mount Î Unscrew the cap and fastening screw of the wheel mount and r...

Page 23: ...ar connection 2 Water pump M2 Î Remove the cleaning head housing see chapter Removing the cleaning head housing Î Pull the shaped hose off the connection of the wa ter distribution bar Î Pull the water pump out of the water pump holder toward the top 1 Shaped hose water distribution bar connection 2 Water pump M2 3 Water hose to the water pump 4 Pump holder rubber 5 Pump holder rubber 6 Connector ...

Page 24: ...Bp Pack The connection voltage of 24 Volts is pulsed there fore only about 12 Volts can be measured on the wa ter pump This water pump does not have a diode The water pump is monitored by current If the current pickup is too high it is switched off 1 Fastening screws 2x cover 2 Cover Î Remove the cleaning head casing see chapter Removing the cleaning head casing Î Unscrew locking screws Î Remove c...

Page 25: ... screws Î Remove the half bearings 1 Rubber ring 2x 2 Bearing 2x 3 Cap Î Remove the cap 1 Toothed belt from suction turbine 2 coupling 3 Toothed belt to the brush roller drive Î Remove the coupling toward the top Î Remove both toothed belts Î Install the new toothed belts in reverse order Note The coupling is triggered in case of an overload and emits very loud noises Switch off the appliance brie...

Page 26: ...erload and emits very loud noises If the appliance is switched off briefly the coupling will lock in automatically and the appliance can be used once again Turn the appliance off before you activate the suction bar lift Otherwise the brush drive can be triggered 1 Suction turbine housing 2 Axle 3 Suction tube connection 4 Bearing for axle 5 Cleaning head bottom part 6 Water pump M2 Î Remove the cl...

Page 27: ...op half bearing suction turbine housing Î Remove the top half bowl of the suction turbine housing 1 Bottom half bearing suction turbine housing 2 Suction turbine M1 Î Remove the suction turbine from the bottom half bowl 1 Suction turbine M1 2 Lock 2x housing cover 3 Covering lid 4 Bottom housing part Î Open locks on both sides of the housing cover and remove the housing cover Î Pull the bottom par...

Page 28: ...ion turbine in reverse order 1 Release park position 2 Locking tabs 3 Pliers 4 Pressure spring Î Remove the wheel see chapter Removing the cleaning head Î Press the locking tabs together with pliers and at the same time pull the release out of the housing toward the top Caution A pressure spring is located under the release Î Install the release in reverse order 5 1 13Remove the parking position r...

Page 29: ...nce toward the rear 1 Suction pipe 2 Suction tube connection Î The suction pipe and the suction pipe connections are accessible for cleaning 1 Vacuum bar 2x 2 Suction channel Î Remove both vacuum bars from the vacuum bar support see chapter Replacing the vacuum bar Î The suction channel is accessible for cleaning Î Flush the suction hose and the suction channel with water or pull or push the obstr...

Page 30: ...l board in the reverse order Note In order to facilitate the installation of the board cover it is recommended to remove the battery locks 5 1 15Replace the control board BR 30 4 C Bp Pack only 1 X2 2 Terminal strip batteries 1 2 LED operating status display batteries 3 X2 3 Terminal strip batteries 2 4 X2 1 Terminal strip ground 5 X3 2 Terminal strip suction turbine 6 X3 1 Terminal strip suction ...

Page 31: ... the balance weight is slid all the way onto the axle To measure the voltage the gauge must be connect ed to the positive and negative plug contacts see ar rows Target value Between 17 5 and 27 5 VDC depending on the charge status If the voltage is lower than that the batteries have been deep discharged or they are de fective 5 1 16Remove the balance weight BR 30 4 C Bp Pack only 5 2 Check the bat...

Page 32: ...tration Target value 11 kOhm If the resistance is significantly higher or lower the batteries are defective Measurement value 2 To measure the resistance the gauge must be con nected to plug contacts as shown in the illustration Target value 7 8 kOhm at 20 C This value is temperature dependent Note The batteries can assume a temperature of up to 55 during the discharge process 5 2 2 Resistance mea...

Page 33: ...eck lock the correct positioning of the vacuum bar Check the vacuum bar for wear and tear replace if necessary Check the suction pipe connection whether the suction hose and the suction pipe are properly connected connect properly if nec essary Check the vacuum bar suction pipe and suction channel in the cleaning head for obstructions clear if necessary Check replace the suction turbine M1 Check w...

Page 34: ... X 2 1 X9 X11 X 1 3 X 1 2 X5 X8 X10 C1 M1 M 1 X1 1 X1 2 M2 PE M 1 X2 1 2 3 bn bl gn ge X0 230V 50 60Hz 16A 3X1qmm b n b l b n b l b n b l b n b l s w g n g e g n g e A1 Distribution board C1 De interference capacitor 0 22 µF M1 Brush motor M2 Water pump S1 Main switch for brushing vacuuming opera tions S2 Water pump switch X0 Mains plug X1 Connector 2 pin X3 Connector 3 pin ...

Page 35: ... 2 2 X3 X4 X 2 1 X9 X11 X10 X 1 3 X5 X 1 2 X8 C1 M2 PE M 1 X2 1 2 3 bn bl gn ge X0 120V 60Hz 15A 3X18AWG 1 2 1 2 3 g n g e 1 2 1 2 g n g e 19AWG A1 Distribution board C1 De interference capacitor 0 22 µF M1 Brush motor M2 Water pump S1 Main switch for brushing vacuuming opera tions S2 Water pump switch X0 Mains plug X1 Connector 2 pin X3 Connector 3 pin ...

Page 36: ...2 2 X3 X4 X 2 1 X9 X11 X10 X 1 3 X 1 2 X5 X8 C1 M2 PE M 1 X2 1 2 3 bn bl gn ge X0 100V 50 60Hz 7A 3X0 75mm 1 2 1 2 3 g n g e 1 2 1 2 g n g e 0 75mm A1 Distribution board C1 De interference capacitor 0 22 µF M1 Brush motor M2 Water pump S1 Main switch for brushing vacuuming opera tions S2 Water pump switch X0 Mains plug X1 Connector 2 pin X3 Connector 3 pin ...

Page 37: ... 1 3 X 2 2 X 2 3 X 2 1 X 3 1 X 3 2 X 4 1 X 4 2 1 3 bl 0 75 sw 0 75 bn 0 75 gn 0 5 gr 0 5 bn 0 5 ge 0 5 ws 0 5 rt 2 5 bn 2 5 bl 2 5 bl 0 75 bn 0 75 sw 2 5 rt 2 5 25 2V 3 3Ah 25 2V 3 3Ah bn 0 5 A1 Control board G1 G2 Batteries 25 2 V 3 3 Ah M1 Brush motor M2 Water pump S1 Main switch for brushing vacuuming opera tions S2 Water pump switch X0 Mains plug X1 Connector 3 pin ...

Page 38: ...m s2 0 2 Sound pressure level LpA dB A 72 Uncertainty KpA dB A 1 Sound pressure level LWA dB A 85 Uncertainty KWA dB A 1 8 2 BR 30 4 C Bp Pack Power Nominal voltage V 25 2 Nominal capacity Ah 3 3 Average power consumption W 550 Protective class III Type of protection IPX4 Current pickup Total appliance 25 2 V A 19 23 Pump A 1 Pump overload A 2 6 Vacuuming Cleaning power air quantity l s 23 Suction...

Page 39: ...ng Nilos ring brush roller bearing the complete drive is of fered as a spare parts kit 10 Water distribution bar 1 Flexible suction hose between the main body and the brush head 20 Vacuum bar 1 Suction channel 20 Suction hose 20 Main switch 5 Pump switch 5 Power cord 15 Wheels 5 Floater in the wastewater reser voir 2 Floater seal 2 Seal in wastewater reservoir 3 Pluggable valve fresh water 1 Compl...

Page 40: ...089 099 0 5 962 364 0 5 970 925 0 BR 30 4 1 783 202 0 0 089 149 0 5 962 037 0 5 970 925 0 BR 30 4 JP 1 783 203 0 0 089 150 0 5 962 064 0 5 970 925 0 BR 30 4 JP 1 783 204 0 0 089 150 0 5 962 064 0 5 970 925 0 BR 30 4 Adv EU 1 783 205 0 0 089 099 0 5 962 364 0 5 970 925 0 BR 30 4 C GB 1 783 207 0 0 089 099 0 5 962 364 0 5 970 925 0 BR 30 4 C Bp Pack EU 1 783 208 0 0 089 305 0 5 963 616 0 5 971 230 0...

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