Nilfisk SC401 17 B User manual

Category
Floor Machine
Type
User manual

This manual is also suitable for

SC401, SCRUBTEC 344
07/2018 (B) Form No. 9100002300
Service Manual
Advance Model Numbers:
9087394020 SC401 17 B
9087395020 SC401 17 BD
Nilsk Model Numbers:
9087391020 SC401 43 B
9087390020 SC401 43 B FULL PKG
9087392020 SC401 43 E
9087393020 SC401 43 BD
9087398020 SC401 43 BD FULL PKG
9087396020 SCRUBTEC 344 B COMBI
9087397020 SCRUBTEC 344 E
English
Contents iiService Manual – SC401, SCRUBTEC 344
Contents
03 - General Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Machine General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Service Manual Purpose and Field of Application . . . . . . . . . . . . . . . . . . . . . 7
Other Reference Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Name Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Visible Symbols on the Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
General Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Lifting The Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Transporting The Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Technical Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Battery Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Cord Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Battery Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Cord Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Know Your Machine (Battery). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Control Panel View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Rear/Left Machine View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Front/Right Machine View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Know Your Machine (Cord) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Control Panel View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Rear/Left Machine View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Front/Right Machine View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Service and Diagnostic Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
04 - Control System - Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Functional Block Diagram (no Drive) . . . . . . . . . . . . . . . . . . . . . . . . . .30
Functional Block Diagram (Drive) . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Maintenance and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Parameter Machine Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
General System Fault Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Main Machine Controller (EB1). . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
User Interface Controller (EB2) and Operator’s Presence Sensors (S1, S2) . . . . .44
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Main Machine Controller (EB1) Connectors . . . . . . . . . . . . . . . . . . . . . .46
User Interface Controller (EB2) Connectors . . . . . . . . . . . . . . . . . . . . . .53
Shop Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Main Machine Controller (EB1) . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
User Interface Controller (EB2). . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Contents iiiService Manual – SC401, SCRUBTEC 344
05 - Control System - Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
Maintenance and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
Parameter Machine Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Main Machine Controller (EB1). . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
User Interface Controller (EB2) and Operator’s Presence Sensors (S1, S2) . . . . .75
Operator’s Presence Sensors (S1, S2). . . . . . . . . . . . . . . . . . . . . . . .76
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
Main Machine Controller (EB1) Connectors . . . . . . . . . . . . . . . . . . . . . .77
User Interface Controller (EB2) Connectors . . . . . . . . . . . . . . . . . . . . . .82
10 - Chassis System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Chassis (Main Parts) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
14 - Wheel System, Non-Traction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
20 - Wheel System, Traction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
Maintenance and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
Drive Motor Clenanig . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Drive Wheels Controller (EB3) Parameters . . . . . . . . . . . . . . . . . . . . . .91
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
Drive Wheels Controller (EB3) Alarms . . . . . . . . . . . . . . . . . . . . . . . . .94
Drive System Gear Motor Current Draw Test . . . . . . . . . . . . . . . . . . . . . 96
Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
Drive Wheels Controller (EB3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
Drive System Gearmotor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
Drive Wheels Controller (EB3) Connectors. . . . . . . . . . . . . . . . . . . . . .101
Shop Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Drive Wheels Controller (EB3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105
Contents ivService Manual – SC401, SCRUBTEC 344
24 - Electrical System (Battery). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106
Battery Charge State Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Maintenance and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Setting the Installed Battery Type . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Battery Charger Setting and Dipswitches Conguration . . . . . . . . . . . . . . 111
Battery Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Battery Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Checking/Replacing Relay or Fuses . . . . . . . . . . . . . . . . . . . . . . . . . .116
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Complete Wiring Diagram (Battery no Drive) . . . . . . . . . . . . . . . . . . . . . . 118
Complete Wiring Diagram (Battery Drive) . . . . . . . . . . . . . . . . . . . . . . . . 119
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120
24 - Electrical System (Cord) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Complete Wiring Diagram (Cord) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
30 - Solution System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125
Pre Wetted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Adjusting of Detergent Concentration in the Washing Water . . . . . . . . . . . . 126
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Maintenance and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Cleaning the Water Tank and Filter . . . . . . . . . . . . . . . . . . . . . . . . . 130
Detergent Tank and Detergent System Cleaning . . . . . . . . . . . . . . . . . . 131
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Solenoid Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135
34 - Scrub System, Disc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136
Brush Engage and Release System . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Brush Engagement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Brush Release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Brush Motor ANTISPLASHING System . . . . . . . . . . . . . . . . . . . . . . . 137
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Maintenance and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Brush or Pad-Holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Brush Motor Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Brush Motor Current Draw Test . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Brush Deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Brush Motor Carbon Brushes Checking/Replacing . . . . . . . . . . . . . . . . . 146
Brush Motor Disassembly/Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 147
Starting Capacitor Replacing (Cord Model) . . . . . . . . . . . . . . . . . . . . . 148
Capacitor Run Replacing (Cord Model) . . . . . . . . . . . . . . . . . . . . . . . . 149
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150
Contents vService Manual – SC401, SCRUBTEC 344
38 - Squeegee System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .151
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .151
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Maintenance and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Squeegee Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Checking/Replacing the Squeegee Blades . . . . . . . . . . . . . . . . . . . . . . 154
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Spring on the Squeegee Support . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .157
40 - Recovery System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .158
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .158
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Maintenance and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Recovery Tank Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .161
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Vacuum Motor Current Draw Test . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Vacuum Motor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Container and Vacuum Motor Disassembly/Assembly. . . . . . . . . . . . . . . . 165
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .170
90 - Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
6Service Manual – SC401, SCRUBTEC 344
03 - General Information
Machine General Description
The SC401, SCRUBTEC 344 is a “walk-behind” scrubber industrial machine designed to wash and dry oors
in one pass. The machine is powered by on-board batteries or cord power supply. The machine features a
oor disc brush, controlled detergent solution dosing and a rear squeegee with rubber blades that vacuums
and dries the oor.
Figure 1:
Drive handlebar
Recovery tank
Detergent bottle
Vacumm system
Solution tank
Squeegee Solution system
Brush deck
Brush
7Service Manual – SC401, SCRUBTEC 344 03 - General Information
Service Manual Purpose and Field of Application
The Service Manual is a technical resource intended to help service technicians when carrying out
maintenance and repairs on the scrubbers, to guarantee the best cleaning performance and a long working
life for the machine.
Please read this manual carefully before performing any maintenance and repair procedure on the machine.
Other Reference Manuals
Model Model No. Instructions for Use Spare Parts List
Advance SC401 17 B 9087394020 9100002290 9100002293
Advance SC401 17 BD 9087395020
Nilsk SC401 17 B FULL PKG 9087390020
9100002291 9100002294
Nilsk SC401 17 B 9087391020
Nilsk SC401 17 BD 9087393020
Nilsk SC401 17 BD FULL PKG 9087398020
Nilsk SCRUBTEC 344 B COMBI 9087396020
Nilsk SC401 17 E 9087392020 9100002292 9100002295
Nilsk SCRUBTEC 344 E 9087397020
Assembly Instructions Instruction Code Machines concerned
Key Kit 9100002549 Nilsk Battery
Detergent Kit 9100002550 Nilsk Battery
Battery charger kit 9100002551 Nilsk Battery
Counter hour 24V KIT 9100002547 Advance / Nilsk Battery
USB port kit 9100002548 Advance / Nilsk Battery
Trackclean kit 9100002586 Advance / Nilsk Battery
These manuals are available at:
Local Advance or Nilsk retailer
Advance website: www.advance-us.com
Nilsk website: www.nilsk.com
EZ-Data application
8Service Manual – SC401, SCRUBTEC 344 03 - General Information
Conventions
Forward, backward, front, rear, left or right are intended with reference to the operator’s position, that is to
say in driving position.
Name Plate
Reference to Figure 2
The machine serial number and model name
are marked on the plate (see the example to the
side).
Model number and year of production (Date
code: A18, as January 2018) are marked on the
same plate.
Figure 2:
9Service Manual – SC401, SCRUBTEC 344 03 - General Information
Safety
The following symbols indicate potentially dangerous situations. Always read this information carefully and
take all necessary precautions to safeguard people and property.
Visible Symbols on the Machine
WARNING: Carefully read all the instructions before performing any operation on the
machine.
WARNING: Do not wash the machine with direct or pressurized water jets.
max.2%
WARNING: Do not use the machine on slopes with a gradient exceeding the
specications.
Symbols
The following symbols are used to help you recognize the information concerning the safety and the
prevention of problems.
DANGER: Indicates a potentially hazardous situation which, if not avoided, will result in death or
serious injury.
WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death
or serious injury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, could result in minor
or moderate injury.
Note: Indicates an important informational message.
10Service Manual – SC401, SCRUBTEC 344 03 - General Information
General Safety Instructions
Specic warnings and cautions to inform about potential damages to people and machine are shown below.
DANGER: BATTERY MODELS
Before performing any machine maintenance, repair, cleaning or replacement
procedure, disconnect the battery connector and remove the ignition key (if equipped).
When using lead (WET) batteries, keep sparks, ames and smoking materials away
from the batteries. During the normal operation explosive gases are released.
When using lead (WET) batteries, battery charging produces highly explosive
hydrogen gas. During battery charging, lift the recovery tank and perform this
procedure in well-ventilated areas and away from naked ames.
DANGER: CORD MODELS
Before performing any maintenance, repair, cleaning or replacement procedure
disconnect the plug from the electrical mains.
DANGER: ALL MODELS
This machine must be used by properly trained operators only.
Do not wear jewels when working near electrical components.
Do not work under the lifted machine without supporting it with safety stands.
Do not operate the machine near toxic, dangerous, ammable and/or explosive
powders, liquids or vapours. This machine is not suitable for collecting dangerous
powders.
CAUTION: BATTERY MODELS
Before using the battery charger, ensure that frequency and voltage values, indicated
on the machine serial number plate, match the electrical mains voltage.
Do not pull or carry the machine by the battery charger cable and never use the battery
charger cable as a handle. Do not close a door on the battery charger cable, or pull the
battery charger cable around sharp edges or corners. Do not run the machine on the
battery charger cable.
Keep the battery charger cable away from heated surfaces.
Do not charge the batteries if the battery charger cable or the plug are damaged. If the
machine is not working as it should, has been damaged, left outdoors or dropped into
water, return it to the Service Center.
To reduce the risk of re, electric shock, or injury, do not leave the machine
unattended when it is plugged in. Before performing any maintenance procedure,
disconnect the battery charger cable from the electrical mains.
Do not smoke while charging the batteries.
To avoid any unauthorized use of the machine, remove the ignition key.
Do not leave the machine unattended without being sure that it cannot move
independently.
(Only for machines with drive system): When the machine is to be pushed for service
reasons (missing or discharged batteries, etc.), the speed must not exceed 4 km/h.
11Service Manual – SC401, SCRUBTEC 344 03 - General Information
CAUTION: CORD MODELS
The machine power supply cable is grounded and the relevant plug is grounded too. In
case of machine malfunction or breakdown, grounding connection reduces the risk of
electric shock.
The power supply cable plug must be connected to an appropriate outlet, which is
grounded according to law in force.
Improper connection can cause electric shock. Consult a qualied technician to make
sure that the outlet is properly grounded.
Do not tamper with the power supply cable plug. If the power supply cable plug
cannot be connected to the outlet, have new grounded outlet installed by a qualied
technician, according to the law in force.
Before connecting the power supply plug to the electrical mains, check that frequency
and voltage, shown on the machine serial number plate (29), match the electrical
mains voltage.
Do not unplug the machine by pulling the supply cable. To unplug, grasp the plug, not
the cable.
Do not handle the plug or the machine with wet hands.
Turn o all controls before unplugging.
Regularly check the power supply cable for damages, cuts, cracks and wear. If
necessary, replace it.
If the power supply cable is damaged, it must be replaced by the Manufacturer or by an
authorised Service Centre.
Do not pull or carry the machine by the power supply cable and never use the power
supply cable as a handle. Do not close a door on the power supply cable, or pull the
power supply cable around sharp edges or corners. Do not run the machine on the
power supply cable.
The rotating brush must not come into contact with the power supply cable.
Keep the supply cable away from heated surfaces.
To reduce the risk of re, electric shock, or injury, do not leave the machine
unattended when it is plugged in. Disconnect the machine from the electrical mains
when not in use and before performing maintenance procedures.
If the machine:
Does not work properly
Is damaged
Has water or foam leaks
Has been left outdoors exposed to bad weather conditions
Is wet or has been dropped into water,
turn it o immediately and contact the Nilsk Service Center or a qualied technician.
12Service Manual – SC401, SCRUBTEC 344 03 - General Information
CAUTION: ALL MODELS
Carefully read all the instructions before performing any maintenance/repair
procedure.
This machine is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction concerning use of the machine by a
person responsible for they safety.
Children should be supervised to ensure that they do not play with the machine.
Close attention is necessary when used near children.
Always protect the machine against the sun, rain and bad weather, both under
operation and inactivity condition. This machine must be used indoors in dry
conditions, it must not be used or kept outdoors in wet conditions.
Before using the machine, close all doors and/or covers as shown in the Instructions
for Use Manual.
Use only as shown in this Manual. Use only Nilsk’s recommended accessories.
Check the machine carefully before each use, always check that all the components
have been properly assembled before use. If the machine is not perfectly assembled it
can cause damages to people and properties.
Take all necessary precautions to prevent hair, jewels and loose clothes from being
caught by the machine moving parts.
Do not use the machine on slopes.
Do not tilt the machine more than the angle indicated on the machine itself, in order to
prevent instability.
Do not use the machine in particularly dusty areas.
Use the machine only where a proper lighting is provided.
While using this machine, take care not to cause damage to people or objects.
Do not bump into shelves or scaoldings, especially where there is a risk of falling
objects.
Do not lean liquid containers on the machine, use the relevant can holder.
The machine working temperature must be between +32 °F and +104 °F (0 °C and +40
°C).
The machine storage temperature must be between +32 °F and +104 °F (0 °C and +40
°C).
The humidity must be between 30 % and 95 %.
When using oor cleaning detergents, follow the instructions on the labels of the
detergent bottles.
To handle oor cleaning detergents, wear suitable gloves and protections.
Do not use the machine as a means of transport.
Do not allow the brush to operate while the machine is stationary to avoid damaging
the oor.
13Service Manual – SC401, SCRUBTEC 344 03 - General Information
In case of re, use a powder re extinguisher, not a water one.
Do not tamper with the machine safety guards and follow the ordinary maintenance
instructions scrupulously.
Do not allow any object to enter into the openings. Do not use the machine if the
openings are clogged. Always keep the openings free from dust, hairs and any other
foreign material which could reduce the air ow.
Do not remove or modify the plates axed to the machine.
This machine cannot be used on roads or public streets.
Pay attention during machine transportation when temperature is below freezing point.
The water in the recovery tank or in the hoses could freeze and seriously damage the
machine.
Use only the brushes supplied with the machine or those specied in the Instructions
for Use Manual. Using other brushes could reduce safety.
In case of machine malfunctions, ensure that these are not due to lack of maintenance.
If necessary, request assistance from the authorised personnel or from an authorised
Service Center.
If parts must be replaced, require ORIGINAL spare parts from an Authorised Dealer or
Retailer.
To ensure machine proper and safe operation, the scheduled maintenance shown in
the relevant chapter of this Manual, must be performed by the authorised personnel or
by an authorised Service Center.
Do not wash the machine with direct or pressurised water jets, or with corrosive
substances.
The machine must be disposed of properly, because of the presence of toxic-harmful
materials (batteries, etc.), which are subject to standards that require disposal in
special centres.
14Service Manual – SC401, SCRUBTEC 344 03 - General Information
Lifting The Machine
WARNING: Do not work under the lifted machine without supporting it with safety stands.
Transporting The Machine
WARNING: Before transporting the machine, make sure that:
All covers are closed.
The recovery tank and the detergent tank are empty.
The batteries are disconnected.
The ignition key is removed.
The machine is securely fastened to the means of transport.
15Service Manual – SC401, SCRUBTEC 344 03 - General Information
Technical Specications
Battery Models
Model SC401, SCRUBTEC 344
No Drive Drive
Solution tank capacity 7,9 US gal (30 liters)
Recovery tank capacity 7,9 US gal (30 liters)
Machine length 46,5 in (1.180 mm)
Machine width with squeegee 28 in (720 mm)
Machine width without squeegee 18 in (458 mm)
Machine height 41,5 in (1.055 mm)
Cleaning width 17 in (430 mm)
Deck right/left oset 1,8 in / 0 in (45 mm / 0 mm)
Front wheel diameter 7,8 in (200 mm)
Front wheel specic pressure on the oor (*) 116 psi (0,8 N/mm2)
Rear wheel diameter 3,1 in (80 mm)
Rear wheel specic pressure on the oor (*) 290 psi (2,0 N/mm2)
Brush/pad diameter 17 in (430 mm)
Brush pressure 55 lb (25 kg)
Solution ow values 0,08 - 0,18 - 0,53 gpm (0,3 / 0,7 / 2,0 L/m)
Detergent bottle capacity 0,26 US gal (1 liters)
Detergent System detergent percentage 0,25 ÷ 2,0 %
Sound pressure level at workstation (ISO 11201, ISO 4871, EN
60335-2-72) (LpA) 65 ±3 dB(A)
Sound pressure level at workstation in silent mode (LpA) 60 ±3 dB(A)
Machine sound power level (guaranteed value ISO 3744, ISO
4871, EN 60335-2-72) (LwA) 80 dB(A)
Vibration level at the operator’s arms (ISO 5349-1, EN 60335-2-
72) < 98 in/s2 (< 2,5 m/s2)
Maximum gradient when working 2 %
Drive system motor power -0.2 hp (150 W)
Drive speed (variable) -0 ÷ 3 , 1 m i / h
(0 ÷ 5 km/h)
Vacuum system motor power 0,4 hp (280 W)
Vacuum system circuit capacity 35,4 in H2O (900 mm H2O)
Brush motor power 0,6 hp (450 W)
Brush motor speed 140 rpm
16Service Manual – SC401, SCRUBTEC 344 03 - General Information
Model SC401, SCRUBTEC 344
No Drive Drive
Total power draw (EN 60335-2-72) 21 A (0,5 kW) 25 A (0,6 kW)
IP protection class X4
Protection class (electric) III (I for on board battery charger)
Battery compartment size 13,8 x 13,8 x 10,2 in (350 x 350 x 260 mm)
System voltage 24V
Standard batteries (q.ty 2)
Advance: 98 Ah C20 GEL / 105 Ah C20 WET
Nilsk: 12V-76 Ah GEL MONOBLOC
Battery charger -24V 10A
Operating time (standard batteries) (EN 60335-2-72) 2,6 h 2,4 h
Weight without batteries and with empty tanks 134 lb (61 kg) 161 lb (73kg)
Gross vehicle weight (GVW) 333 lb (151 kg) 359 lb (163 kg)
Shipping weight (basic / full package)
214 lb (97 kg)
340 lb (154 kg)
240 lb (109 kg)
366 lb (166 kg)
(*) Machines have been tested under the following conditions:
Battery maximum size
Maximum brush and squeegee size
Full detergent tank
Optional equipment installed
Wheel weight checked
Print on the oor checked on cement for each single wheel
Result expressed as maximum value for both front and rear wheels
17Service Manual – SC401, SCRUBTEC 344 03 - General Information
Cord Models
Model SC401, SCRUBTEC 344
Solution tank capacity 7,9 US gal (30 liters)
Recovery tank capacity 7,9 US gal (30 liters)
Machine length 46,4 in (1.180 mm)
Machine width with squeegee 28,3 in (720 mm)
Machine width without squeegee 18 in (458 mm)
Machine height 41,5 in (1.055 mm)
Cleaning width 17 in (430 mm)
Deck right/left oset 1,8 in / 0 in (45 mm / 0 mm)
Front wheel diameter 7,9 in (200 mm)
Front wheel specic pressure on the oor (*) 116 psi (0,8 N/mm2)
Rear wheel diameter 3,1 in (80 mm)
Rear wheel specic pressure on the oor (*) 290 psi (2,0 N/mm2)
Brush/pad diameter 17 in (430 mm)
Brush pressure 66 lb (30 kg)
Solution ow values 0,08 / 0,18 / 0,53 gpm (0,3 / 0,7 / 2,0 L/m)
Sound pressure level at workstation (ISO 11201, ISO 4871, EN
60335-2-72) (LpA) 68 ±3 dB(A)
Machine sound power level (ISO 3744, ISO 4871, EN 60335-2-
72) (LwA) 87 dB(A)
Vibration level at the operator’s arms (ISO 5349-1, EN 60335-2-
72) < 98 in/s2 (< 2,5 m/s2)
Maximum gradient when working 2 %
Vacuum system motor power 0,4 hp (280 W)
Vacuum system circuit capacity 35,4 in H2O (900 mm H2O)
Brush motor power 1 hp (750 W)
Brush motor speed 170 rpm
Total power draw (EN 60335-2-72) 4,3 A (1,0 kW)
IP protection class X4
Protection class (electric) I
Power supply 230 V - 50-60 Hz
Weight with empty tanks 247 lb (112 kg)
Gross vehicle weight (GVW) 317 lb (144 kg)
Shipping weight 326 lb (148 kg)
(*) Machines have been tested under the following conditions:
Maximum brush and squeegee size
Full detergent tank
Optional equipment installed
Wheel weight checked
Print on the oor checked on cement for each single wheel
Result expressed as maximum value for both front and rear wheels
18Service Manual – SC401, SCRUBTEC 344 03 - General Information
Maintenance Schedule
Battery Models
Procedure Daily,
after use Weekly/
Monthly Every 6
Months Annually
Battery Charging
Squeegee Cleaning
Brush/pad cleaning
Recovery tank, debris tray, and vacuum grid with
oat cleaning, and cover gasket check
Detergent System cleaning and washing
Squeegee blade check
Solution Filter Cleaning
Battery (WET) uid level check
Squeegee blade replacement
Drive and brush motor check and cleaning
Brush motor carbon brush check or replacement
Cord Models
Procedure Daily,
after use Weekly/
Monthly Every 6
Months Annually
Squeegee Cleaning
Brush/pad cleaning
Recovery tank, debris tray, and vacuum grid with
oat cleaning, and cover gasket check
Power supply cable check
Squeegee blade check
Solution Filter Cleaning
Squeegee blade replacement
19Service Manual – SC401, SCRUBTEC 344 03 - General Information
Know Your Machine (Battery)
Control Panel View
Figure 3:
Operators presence
sensors
Reverse gear switch
(only for drive version)
Operators presence
sensors
Ignition key (0 - I) (standard
for drive version)
Vacuum system button
Battery level Led’s
Main machine start and
stop button
USB port
Solution button (3 level)
Speed adjuster (only for
drive version)
Hour counter
Battery charger inspection
window
20Service Manual – SC401, SCRUBTEC 344 03 - General Information
Rear/Left Machine View
Figure 4:
Front wheels
Brush deck
lifting/lowering
pedal
Tank lifting
handle
Solution drain
and level check
hose
Squeegee lifting/
lowering pedal
Drive handlebar
Control panel
Recovery water
drain hose
Battery charger
cable
Battery charger
cable housing
and document
holder
Serial number
plate/technical
data/conformity
certication
Battery
connector (red)
Squeegee
adjusting knob
Squeegee
mounting
handwheels
Recovery tank
cover
Recovery tank
Squeegee
vacuum hose
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Nilfisk SC401 17 B User manual

Category
Floor Machine
Type
User manual
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