How to improve poor braking effect on Kärcher BR 250 R Floor Machine?
To improve a poor braking effect on your Kärcher Floor Machine: – Test the electromagnetic brake (Y1) and adjust or replace if necessary, using test mode. – Test the driving module printed circuit board (A2) and replace if necessary, using test mode.
What to do if Kärcher Floor Machine raises dust or does not vacuum (RI version)?
If your Kärcher Floor Machine (RI version with pre-sweeping unit) raises dust or doesn't vacuum: – Check and replace the side brush and main brush if needed. – Verify the direction of rotation of the main brush and properly connect the electrical connecting cables (plus/minus). – Check and replace the seal of the filter case of the debris container if needed. – Check and replace the round filter if needed. – Check, adjust, or replace sealing lips/strips. – Check and replace the fan drive belt if needed. – Check and adjust the pre-sweeping unit for parallelism. – Check and replace the clean module pre-sweeping system (F6) safety lock if needed. – Check and replace the fan motor (M13) if needed. – Check and replace the clean module pre-sweeping system (A3/1) if needed.
What to do if side brushes cannot be lifted or lowered on Kärcher BR 250 R Floor Machine (RI version)?
If the side brushes on your Kärcher Floor Machine (RI version with pre-sweeping unit or side brush option) cannot be lifted or lowered: – Check for any mechanical blockage and repair it. Check the function of the side brush suspension (spring, Bowden cable, deflection pulley). – Check and replace the side brush lift module (F8) safety lock if needed. – Check and replace the pre-sweeping system (S6) switch if needed. – Check and replace the program switch (S9) if needed. – Check and replace the micro-switch of the lower side brush (S40) if needed. – Check and replace the micro-switch of the upper side brush (S41) if needed. – Check and replace the lifting motor of the side brush (M40) if needed. – Check and replace the lift module of the side brush (A4/1) if needed.
General| Brand | Kärcher |
|---|---|
| Model | BR 250 R |
| Category | Floor Machine |
| Language | English |
Details the technical specifications for the BR/BD 100/250 R model, covering drive system, sweeping system, and electrical system.
Details the technical specifications for the BR/BD 100/250 RI model, highlighting its pre-sweeping unit and differences from the R version.
Details technical specifications for BR/BD 120/250 R and RI models, including Bp and BP Pack versions and working width.
Illustrates and labels key components of the machine visible from the left-hand side.
Illustrates and labels key components of the machine visible from the right-hand side.
Illustrates and labels key components of the machine visible from the rear.
Describes the wheel hub motor, including its components, freewheeling lever, and notes on transport.
Details the brush head components for BR and BD versions, including mounting parts and lifting motor.
Describes the suction beam, its components, rubber strips, and lifting mechanism.
Explains the function and location of the suction motor, including removal steps.
Details the water filter, water pump, cleaning agent metering pump, and optional cleaning agent canister.
Describes the dirty water tank, float switch, and the optional recycling mode lever.
Illustrates and lists the functions of various buttons, switches, and indicators on the control panel.
Explains the 8 switching positions of the program switch and their corresponding functions.
Describes the integrated seat sensor safety function and the distribution box connections.
Details the battery configuration, filling system, and central plug connections.
Provides operating instructions and indicator light explanations for the battery charger.
Illustrates the side brush suspension, motors, and optional features.
Details the pre-sweeper unit, its components, and its integration with the machine.
Provides a schematic overview of the machine's functional components and their interconnections.
Details the mounting components for the brush head, distinguishing between BR and BD versions.
Explains how brush contact pressure is adjusted via the lifting motor and current consumption.
Illustrates the functional diagram of the pre-sweeper unit for RI models.
Outlines operator functions, service program availability, and the function of info buttons.
Details operator functions, test modes for service technicians, and display modes.
Provides an overview of the modular system and its network configuration.
Illustrates the modular system architecture for the BR/BD 100/250 R basic unit.
Illustrates the modular system for BR/BD 100/250 R with an optional side brush.
Illustrates the modular system architecture for the BR/BD 100/250 RI model.
Explains emergency driving procedures by connecting the drive module directly to the head CPU.
Shows the view from below of the control panel, highlighting the warning/information and head CPU modules.
Details the lifting module (A4) and accessories module (A5), including their terminal strips and PCBs.
Details the driving module (A2) and cleaning module (A3), including their printed circuit boards and connections.
Details optional lifting module (A4/1) and cleaning module (A3/1), including PCBs and connections.
Describes the service module for diagnostics, parameterization, and firmware updates.
Details accessing the test mode for machines with head CPU version 1.2.
Procedure for accessing test mode using program switch S9 position 1 (Drive).
Procedure for accessing test mode using program switch S9 position 2 (Scrub-Vacuum).
Describes how to measure current and perform on/off functions for components in test mode.
Procedure for accessing test mode using program switch S9 position 3 (Wet Scrub).
Procedure for accessing test mode using program switch S9 position 4 (Vacuum).
Procedure for accessing test mode using program switch S9 position 5 (Polish).
Step-by-step guide for calibrating the accelerator pedal in test mode.
Procedure for testing all illuminated symbols and LEDs on the machine.
Details how to access and navigate the service-operator menu for diagnostics and parameter setup.
Details accessing the test mode for machines with head CPU version up to 1.1.
Procedure for accessing the test mode with the original settings.
Details testing individual drive units (motors, pumps, valves) via the program switch.
Details testing lifting motors for brush head and suction beam via the program switch.
Details performing calibration tests for various machine functions.
Provides access to machine setup menus for parameter configuration.
Details accessing the setup menu for machines with head CPU version 1.2.
Procedure for accessing the main setup menu via the info button.
Details system and driving module parameters accessible through the setup menu.
Details cleaning and lifting module parameters accessible through the setup menu.
Details accessing the setup menu for machines with head CPU version up to 1.1.
Procedure for accessing the setup menu with original settings.
Details system and driving module parameters with original settings.
Details cleaning and lifting module parameters with original settings.
Procedure for saving adjusted parameters and navigating the save menu.
Procedure for loading backup operating hours from the cleaning module.
Provides manufacture settings for various modules like lift, clean, and driving modules.
Details various service procedures for the machine's components.
Describes the steering column, steering head, and wheel hub motor connections.
Explains how to adjust microswitches for the suction beam lifting motor.
Details adjusting upper and lower limit positions for the brush head lifting motor.
Covers maintenance tasks for the brush head, including replacing rollers, brushes, and drive belts.
Describes how to adjust the drive sensor and notes on proper installation.
Details checking and replacing carbon brushes for the wheel hub motor.
Explains how to remove, check, and set the electromagnetic brake and freewheeling lever.
Describes how to adjust the rear wheel brakes for uniform and symmetrical braking.
Lists components and their recommended replacement intervals in operating hours.
Provides troubleshooting steps for faults that do not appear on the display.
Troubleshooting steps for when the unit fails to start, checking power and switches.
Troubleshooting steps for insufficient water supply, checking tanks, filters, and hoses.
Troubleshooting steps for low suction performance and dirty water tank overflows.
Guidance on interpreting and troubleshooting error messages displayed on the machine.
Lists specific error codes for the drive module (A2) and their corresponding actions.
Lists specific error codes for the accessories module (A5) and their corresponding actions.
Lists specific error codes for lifting (A4) and cleaning (A3) modules and their actions.
Lists specific error codes for the Head CPU module (A1) and their corresponding actions.
Explains how to interpret module error codes and display patterns.
Details the format and meaning of module error codes and the buffer of past events.
Lists significant errors related to the Head CPU module (A1) and their potential causes.
Lists significant errors related to the Drive module (A2) and their potential causes.
Lists significant errors related to the Cleaning module (A3) and their potential causes.
Lists significant errors related to the Lifting module (A4) and their potential causes.
Lists significant errors related to the Accessories module (A5) and their potential causes.
Lists routine maintenance tasks to be performed after working hours, categorized by interval.
Presents the circuit diagram for the Head CPU (A1) module (original version).
Presents the circuit diagram for the Head CPU (A1) module (revised version).
Presents the circuit diagram for the Driving module (A2).
Presents the circuit diagram for the Cleaning module (A3).
Presents the circuit diagram for the optional Cleaning module (A3/1) for the pre-sweeper unit.
Presents the circuit diagram for the Lifting module (A4).
Presents the circuit diagram for the optional Lifting module (A4/1) for the side brush.
Presents the circuit diagram for the optional Lifting module (A4/2) for the pre-sweeper unit.
Presents the circuit diagram for the Accessory module (A5).
Provides a list of components and their references used in the circuit diagrams.
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