HAKO Scrubmaster B 120 R Installation and operation manual

Sheet 1
Scrubmaster B 120 R
(7177.XX)
Service Booklet
Service-Handbuch
Hako GmbH .Technisches Produktmanagement . 23840 Bad Oldesloe, Germany Updated 05/2018 - Rev.1.03
Confidential – for internal use only
Schulung/Training
Fehlersuche/Troubleshooting
Einstelldaten/Adjustments

Sheet 2
Table of contents
1 Information 6
2 General information 7
2.1 Settings 10
2.1.1 Connecting to the diagnostics PC 12
2.1.2 Flashing the control unit 14
2.1.3 Connection diagram 16
2.2 Brief description 17
2.2.1 Switching off vacuuming / dirt water tank full 18
2.2.2 Indication Solution Tank empty 21
2.2.3 Machine home position 22
2.2.4 Seat contact switch (3.6.6.4.) 23
2.2.5 Accessing programming 25
2.2.6 Resetting the last service message in the switch-on menu 29
3 Technical data 30

Sheet 3
Table of contents
4 Maintenance intervals 35
4.1 Hako system maintenance (customer) 36
4.2 Hako system maintenance I 37
4.3 Hako system maintenance II 39
4.4 Hako system maintenance S 40
5 Cleaning programmes (FPV) 41
6 Machine settings 44
6.1 Basic settings 44
6.1.1 Cleaning units 45
6.1.2 Battery and charger settings 47
6.1.3 Battery setting (LDS) 48
6.1.4 Charger 50
6.1.5 Charger characteristic curves 52
6.1.6.Charging characteristics table of the integrated charger 53
6.2 Customer-specific settings (PPV) 54

Sheet 4
Table of contents
7 Mechanical components 58
7.1 Squeegee 58
7.2 Rotating brush heads 63
7.3 Roller brush heads 63
7.4 Lifting element brush head 64
7.4.1 Potentiometer in the lifting element for the brush head 65
8 Water pump 66
8.1 Water quantities 67
8.2 Water pump standstill detection 68
9 Drive 69
9.1 DMC drive control (AC motor) 70
9.1.1 Connection description 71
9.2 Service codes DMC control unit 72
9.3 Brake – manual release of the brake 77
9.4 Brake – testing the brake function 78

Sheet 5
Table of contents
10 Service messages 79
10.1 Service alarm clock 3.3.1.1 84
11 Battery charger 85
11.1 Operating manual 85
11.2 Programming the charger 89
11.3 Charge data table 90
12 Options 91
13 Real-time clock (RTC) 94
14 Notes 97

Sheet 6
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.
1. Information

Sheet 7
The Scrubmaster B120 R is equipped with a service indicator in the display of the
operating hours meter. When switching on the key switch, four digits are shown on the
display for approx. 3 seconds that state the software version (e.g. 1.004), and possibly
further four digits that show the last displayed service message, followed by the hour
indicator.
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 8
Scrubmaster B120 R
The Scrubmaster B120 R is available in working widths of between 70 cm and 90 cm.
The machines are always supplied ex factory with batteries; here, it is possible to
choose between various battery sizes (from 180 Ah to 320 Ah) as well as between
different battery technologies (EPzS/EPzB, PzV or GiV).
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 loosely with the delivery for on-site
installation at the customer’s premises.
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 9
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. General information

Sheet 10
Respective settings can be carried out via the machine’s configuration menu.
Currently, these settings are carried out via the machine display. The diagnostics plug
(order no. PN 03006790) is required for these settings. Setting via the diagnostics
system is planned but currently not yet available.
Settable parameters include:
• Cleaning unit
• LDS (Low Discharge Signal sender) / Battery type
• Charger
• Options
• Deleting the display of the last error after repair work
• Programmable programme variants (PPV)
• Fixed programme variants (FPV), cleaning programmes
2.1 Settings

Sheet 11
A new machine control unit is supplied without machine software ex spare parts
warehouse. This is indicated by the service code 4.5.2.5 after installing the central
control unit and switching on the key switch in the machine’s operating hours meter.
This service code is generated direct from the display control board. Only the boot
loader has already been pre-installed.
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 diagnostics 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
2.1 Settings

Sheet 12
The following components are required to activate the control unit of the
Scrubmaster B120 R after a replacement:
• Current Hako diagnostics software (via the Hako WebX download portal)
• Service PC (e.g. Panasonic CF19 / CF20)
• Interface PN 03502430* (recommended interface) or, alternatively: PN 03501750
**
• Diagnostics cable PN 03502750
• Diagnostics plug PN 03006790
See Chapter 2.1.3 for connections to the recommended interface.
2.1.1 Connecting to the diagnostics PC

Sheet 13
Download the “HakoDiagnostics” software as a zip file or as a folder from the
Hako WebX download area.
Information on accessing the download server can be requested from Maike
Christiansen, e-mail: mchristi[email protected].
To install the software on a service computer or for Updating it:
Follow the instructions in the HakoDiagnose MainSetup Guide, delivered with the
Diagnosis software.
2.1.1 Connecting to the diagnostics PC

Sheet 14
• Install the control unit –A01 fully in the machine, activate the backup battery. To do
so, remove the insulating strip between the battery (CR2032) and the battery holder
on the rear of the control unit.
• Connect the interface (* / **) to a free USB port of the service PC.
• Establish a connection between the central control unit and the service PC using
the diagnostics cable (PN 03502750) and the interface.
• Connect the OBD plug (blue contact protection) of the diagnostics cable to the
machine’s OBD contact (located behind the cover in the steering column).
With CAN-FOX interface PN 03502430 (*): (recommended Variant – see chapter 2.1.3)
Connect the D-Sub 9 connection of the diagnostics cable marked CAN1 (red
marking) to the D-Sub 9 connection of the interface marked “CAN”.
Caution: Do not use the D-Sub 9 connection with the designation RS232.
2.1.2 Flashing the control unit

Sheet 15
With CANUSB interface PN 03501750 (**): (Alternative connecting opportunity)
Connect the D-Sub 9 connection of the diagnostics cable marked CAN1 (red
marking) to the round plug of the interface using the adapter piece (D-Sub 9 to
7-pole round plug) included in the scope of delivery of the diagnostics cable.
Flashing the software:
- Turn on the machine.
- Start the Hako diagnostics software. Select the “HAKO” button, then click the
“Scrubmaster B120R” button. The application independently searches for a new,
blank control unit.
- Follow the instructions of the programme. Do not turn off the machine or
disconnect the connection before flashing has been completed.
- Carry out the settings for operative units, options, battery and parameters via the
display according to the training documents.
2.1.2 Flashing the control unit

Sheet 16
2.1.3 Connection diagram
CAN-Fox Interface
PN 03502430 *
USB-plug, to the
Service PC D-Sub9-Connector „CAN“
D-Sub9-Con-
nector„RS232“
D-Sub9-Socket
„CAN1“ - RED
D-Sub9-Socket
„CAN2“ - BLACK
OBDII Cable
PN 03502750
OBD-plug, to
the Machine

Sheet 17
Machine control takes place with the following electronics:
• Central electronics (A1)
• Control and display panel (A2)
• Drive control (A4)
• Chemical dosing (A101)
The control electronics (A1) assumes all control and monitoring tasks in the machine
except for the drive functions.
In addition to the group messages of the drive control on the machine’s display, these
are shown as detailed flash codes using a flash LED. (see Chapter 9).
It is possible to toggle back and forth between the tip switches for scrubbing,
vacuuming 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 Brief description

Sheet 18
Vacuuming is switched off by the operator via the tip switch or automatically in case of
the signal “dirt 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).
2.2.1 Switching off vacuuming /
dirt water tank full

Sheet 19
2.2.1 Switching off vacuuming /
dirt water tank full
Switch off at recovery tank full:
The indicator switch for recovery tank full, is in the B120R a differential pressure sensor.
As soon as the little ball in the filter sieve is lifted up by the water level and then sucked,
the airflow to the suction motor is interrupted. This leads to different pressure levels at
both connectors of the sensor, and the electric contact of the differential pressure
sensor –B05 is closed. The differential pressure sensor is electrically connected to the
main control unit –A01.X9:10 and –A01.X9:20.
The hose that is fitted to the connector marked with „P“ at the sensor, is connected with
the borehole in the lid. This end measures the pressure in the recovery tank. The
other end of the differential pressure sensor is connected with the bohrhole . This End
is related to the intake of the suction motor.
The maximum tightening torque for the fixing screws of the sensor is 1,6Nm.
T
S

Sheet 20
2.2.1 Switching off vacuuming /
dirt water tank full
P
T
S