HAKO Scrubmaster B175 R User manual

Scrubmaster B 175 R
(7180.XX)
Service-Handbuch
Service Booklet
Hako GmbH .Technisches Produktmanagement . D-23840 Bad Oldesloe .Updated 03/2019 - Rev.1.03
Vertraulich –nur für den internen Gebrauch .Confidential - For internal use only!
Schulung/Training
Fehlersuche/Troubleshooting
Einstelldaten/Adjustments
Sheet 1

Table of contents
Sheet 2
1 Information 7
2 General information 8
2.1 Settings 11
2.1.1 Control panel 12
2.1.2 Machine control unit 13
2.2 Brief description 14
2.2.1 Switching off suction / waste water tank full 15
2.2.2 Solution tank display 16
2.2.3 Machine home position 17
2.2.4 Seat contact switch (3.6.6.4.) 18
2.3 Diagnostics and communications 20
2.3.1 Prerequisites 20
2.3.2 Diagnostic software on the diagnostic computer 21
2.3.3 Connecting to the diagnostic PC 22
2.3.4 Connection scheme with the diagnostic PC 24
2.3.5 Flashing the software 25

Table of contents
2.4 Configuration menu 26
2.4.1 Entering the configuration menu 26
2.4.2 Time and Date setting menu 29
2.4.3 Configuration setting menu 30
2.4.4 Settings, that can be carried out without code 32
2.4.5 Settings, that can only be carried out with code 33
2.4.6 Resetting the last error and deleting the error memory 34
2.4.7 Deleting the last error on the display panel 35
2.4.8 Deleting error entries 36
3 Technical data 37
4 Maintenance intervals 45
4.1 Hako system maintenance (customer) 46
4.2 Hako system maintenance I 48
4.3 Hako system maintenance II 51
4.4 Hako system maintenance S 52
5 Cleaning programmes (FPV) 53
Sheet 3

Table of contents
6 Machine settings 56
6.1 Basic settings 56
6.1.1 Cleaning units 57
6.1.2 Battery and charger settings 59
6.1.3 Battery setting (LDS) 60
6.1.4 Charger 62
6.1.5 Charger characteristic curves 64
6.1.6 Charging data table of the integrated charger 65
6.1.7 All-wheel drive variant –X-AC 66
6.1.8 SD storage medium in control panel 67
6.2 Customer-specific settings (PPV) 68
7 Mechanical components 71
7.1 Squeegee 71
7.2 Rotating brush heads 77
7.3 Roller brush heads 78
7.4 Lifting element brush head 79
7.4.1 Potentiometer in the lifting element for the brush head 79
Sheet 4

Table of contents
8 Water pump 80
8.1 Water quantities 81
8.2 Water pump standstill detection 82
9 Drive 83
9.1 DMC drive control unit (front) 84
9.1.1 Connection description - drive control unit (front) 84
9.1.2 Service codes - drive control unit (front) 86
9.1.3 Brake - manual release of the brake (front) 92
9.1.4 Brake –testing the brake function 93
9.2 DMC drive control unit (rear) 94
9.2.1 Connection description - drive control unit (rear) 94
9.2.2 Service codes - drive control unit (rear) 96
9.2.3 Brake at the rear axle 101
9.2.4 Steering angle sensor 102
Sheet 5

Table of contents
10 Service messages 106
10.1 Meaning of different switch on displays 111
10.2 Service alarm clock 3.3.1.1 112
11 Battery charger 113
11.1 Operating manual 113
11.2 Programming the charger 117
12 Options 118
13 Notes 123
Sheet 6

1. Information
Sheet 7
Caution:
•During all work at the machine, secure it against unintentional movement.
•Only carry out work at the machine when it has been de-energised (disconnect the
battery plug), except for current and voltage measurements.
•After repairing electrical drives, measure the starting and operating currents to
detect possibly still present errors.
•During all work at the machine, always observe the general safety and accident
prevention regulations of the legislation.

2. General information
Sheet 8
The Scrubmaster B175 R is equipped with a multifunction display on which all
machine statuses are displayed and machine settings can be made.
If a fault occurs, the wrench in the display lights up and the machine beeps. The
current service code (four-digit alphanumerical code in the service indicator) is shown
with flashing dots between the characters.
It is only a current service message if these criteria apply!

2. General information
Sheet 9
Scrubmaster B175 R
The Scrubmaster B175 R is available in working widths of between 85 cm (cylindrical
brush) as well as 90 cm and 108 cm (plate brush).
The machines are delivered from the factory with batteries as standard; here it is
possible to choose between a maintenance-free 36V/280Ah PzV trough battery and a
36V/320Ah PzS trough battery.
Furthermore, it is differentiated between edition machines and configuration machines.
Edition machines are machines that have a clearly defined scope of equipment. In this
context, only a limited scope of additional equipment features is available. Additional
options are not installed in the factory but supplied loose with the delivery for
installation on site at the customer’s.
A separate operating manual, which describes the operating and service statuses of
the charger, is available for the chargers and supplied together with the device. The
charge indicator is shown on the machine display. Service messages of the charger
are also shown on the machine display.

2. General information
Sheet 10
Configuration machines are manufactured order-specifically according to customer
wishes from a pool of available equipment features. Additional options (chemical
dosing, working light, warning signal, etc.) are installed in the factory.
For more details, see the relevant current price lists.

2.1 Settings
Sheet 11
Respective settings can be carried out via the machine’s configuration menu.
Currently, these settings are carried out via the machine display. There are settings
which can also be carried out by the operator without restrictions (e.g. cleaning
programmes in Chapter 3 and several settings in Chapter 2). This is always possible if
a diskette is displayed next to the value (Chapter-Configuration-Content). However, if
a lock is displayed a diagnostic connector with order number PN 03006790 is required
to adjust this value, or a 4-digit pin must be entered in the field above it. This is
described in more detail in the Configuration chapter.

2.1 Settings
2.1.1 Control panel - MFD
Sheet 12
In order for the display of the control panel to work, a micro-SD card must be inserted
on the PCB of the control panel containing a special image file. This is required to
make the control panel work. A micro-SD card with the required image file can be
written to using the Hako diagnostics. If the micro SD card is missing or the image file
on the card is defective or missing, the control panel will only show a “blue screen”.
The micro SD card must not be formatted, and cannot be read by the usual computer
operating systems (Windows, Linux, IOS, Android).

2.1 Settings
2.1.2 Machine control unit
Sheet 13
A new machine control unit is supplied without machine software ex spare parts
warehouse. Following mechanical and electrical installation of the central control unit
in a machine and switching on the key switch, the display will be in an indeterminate
state, since no data has been transferred from the machine control unit to the control
panel.
Therefore, the machine software must be “flashed” onto the central control unit after
mechanical installation and electrical connection of the central control unit.
•Service PC on which the current Hako diagnostic software is installed. (Windows 7
or higher)
•1 free USB 2.0 port
•CAN-FOX interface PN 03502430
•Alternatively, CANUSB interface PN 03501750
•Interface cable PN 03502750

2.2 Brief description
Sheet 14
Machine control takes place with the following electronics:
•Central electronics (A01)
•Control and display panel (A02) (MFD)
•Drive control unit (A04) / All-wheel-drive-option —2. Drive control unit (A05)
•Chemical dosing (A101)
•Side brush control (A07)
The control electronics (A01) assumes all control and monitoring tasks in the machine
except for the drive functions.
As well as the group messages of the drive control unit on the display of the machine,
these are displayed as detailed flash codes on the drive control using flashing LEDs
(see Chapter 9).
It is possible to toggle back and forth between the tip switches for scrubbing, suction
and the green Hakomatic button for combined cleaning, thus ensuring that the
selected function is activated. When pressing tip switch “boost”, the brush pressure is
increased and the water quantity set to max. as long as the tip switch is pressed.
Tool operation can only be switched on if the parking brake is applied and the seat
contact switch is open.

2.2.1 Switching off suction / waste water tank full
2.2 Brief description
Sheet 15
Suction is switched off by the operator via the tip switch or automatically in case of the
signal “waste water tank full” to protect the suction turbine.
Switching off by the operator:
•The squeegee is raised.
•The suction motor switches off with a delay (15 seconds).
Switching off because the tank is full:
The suction motors are shut off when the waste water tank is full via float switch S04,
which is connected to the machine control unit A01:X15.4 and A01:X15.16.

2.2.2 Solution tank display
2.2 Brief description
Sheet 16
The machine has a fill level indicator for the fresh water tank in the MFD which
displays the current fill level in steps of 20%.
The fill level is measured via a differential pressure sensor. The pressure sensor is
connected to an immersion tube via a hose which is located next to the water filling
opening of the fresh water tank. The immersion tube extends to just above the bottom
of the fresh water tank. A certain pressure is present at the pressure sensor via the
immersion tube and the hoses, which is converted into an electrical signal by the
electronics of the pressure sensor. This signal is evaluated by the machine control unit
and shown on the display as a fill level signal.
The sensor is supplied with a voltage of 5V via A01:X14.5. The minus connection
comes from A01:X15.15,and the analogue signal of the pressure sensor is present at
A01:X15.3.
In case a water column is present in the immersion tube, the water filling indication is
misaligned. The recalibration of the filling indication display is done by the following
procedure: empty the fresh water tank complete. This will also empty the immersion
tube in the fresh water tank and recalibrate the filling indication.

2.2.3 Machine home position
2.2 Brief description
Sheet 17
After switching on the machine, all components are set to “home position” provided
that the seat contact switch is actuated (closed).
The lifting elements will lift unless they have been switched off via the micro-switch for
the upper end position integrated in the lifting element (squeegee) or the upper end
position is detected by the control unit via the integrated potentiometer.
When removed, the spindle of the lifting element may not be twisted as otherwise the
positioning of the lifting element is misaligned.

2.2.4 Seat contact switch (3.6.6.4.)
2.2 Brief description
Sheet 18
The seat contact switch (S05) is connected to the control electronics A1 at
A1:X15.6+18 and A1:X15.7+19.
The control electronics (A1) responds to the relief of the seat with an approx. 2 second
delay. This means: If the contact at A1:X15.6+18 is open for more than 2 seconds
during machine operation, the motors stop.
If the switch is closed again within 2 seconds, the machine continues to operate
without any interruptions.
If the seat contact switch is not actuated for > 6 hours while the key switch is switched
on, the machine is locked in all functions (driving and cleaning). The same applies if
both contacts of the seat contact switch have the same switch status for longer than a
few seconds, i.e. both switches are detected as being open or closed by the machine
(seat switch manipulation).
The service code 3.6.6.4. is shown in the operating hours meter. If the seat contact
switch is actuated, only driving is now possible. If the key switch is switched off and
then back on without the seat contact switch being relieved or actuated again, the
driving function is also deactivated. The machine is blocked for use if the seat contact
switch is not actuated.

2.2 Brief description
Sheet 19
To reactivate the machine after triggering “seat switch manipulation”, the machine
control unit must “register” the change of the switch status or the change between
‘operator is sitting on the machine’ and ‘operator has left the seat’.
To achieve this, the seat contact switch must be opened and closed several times
while the machine is on.
A seat contact switch that has been detected as “open” by the machine (no operator
on the seat) is indicated on the control panel display via the “operator” in the top line
of the MFD. If the seat contact switch is detected as “closed”, i.e. the operator is on
the seat, the operator symbol in the MFD will go off.
Seat contact switch closed means there is an operator on the seat; Seat contact
switch open means there is no operator on the seat.
The second seat contact switch always has the respective opposite switching status.

2.3 Diagnostics and communication
2.3.1 Prerequisites
Sheet 20
The following components are required to activate the control unit of the
Scrubmaster B175 R after a replacement:
•Current Hako diagnostic software (via the Hako WebX download portal)
•Service PC (e.g. Panasonic CF19 / CF20)
•Interface PN 03502430 * (preferred variant) or alternatively also: PN 03501750 **
•Diagnostic cable PN 03502750
•Diagnostic connector PN 03006790
See Chapter 2.3.4 for connections to the recommended interface