Scrubtec 337.2 - Vantage 14
Service Manual
Nilsk-ALTO Scubtec 337.2, 9087343020
Clarke Vantage 14, 9087345020
English
2013-05 Form No. 9099961000
Table of Contents
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Machine General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Service Manual Purpose and Field of Application . . . . . . . . . . . . . . . . . . . . . . 4
Other Reference Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Service and Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Visible Symbols on the Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
General Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Machine Lifting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Machine Transportation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Machine Nomenclature (know your machine) . . . . . . . . . . . . . . . . . . . . . . . . 9
Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Service and Diagnostic Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Scheduled Maintenance Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Table of Contents 2Service Manual – Scrubtec 337.2 / Vantage 14
Chassis System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Frame (main parts). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Maintenance and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
General Wiring Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Recovery System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Maintenance and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Scrub System, Disc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Table of Contents 3Service Manual – Scrubtec 337.2 / Vantage 14
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Maintenance and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Solution System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Squeegee System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Maintenance and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Wheel System, Non-Traction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Service Manual – Scrubtec 337.2 / Vantage 14
General Information
General Information
Machine General Description
The Scubtec 337.2 is a “walk behind” industrial machine designed to wash and dry oors in one pass. The machine is powered by on-board batteries. The machine is equipped with disc brushes, a controlled solution ow
dosing system and a squeegee with blades integrated in the deck, which vacuums and dries the oor.
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 SC351, 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
4
Model Product Code User Manual Spare Parts List
Nilsk Alto Scrubtec 337.2 9087343020 9099872000 9099873000
Clarke Vantage 14 9087345020 9099878000
These manuals are available at:
• Local Nilsk-Alto or Clarke retailer
• website: www.nilsk-alto.com - www.clarke-us.com
Service Manual – Scrubtec 337.2 / Vantage 14
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.
Service and Spare Parts
Service and repairs must be performed only by authorised personnel or Nilsk Alto / Clarke Service Centers.
The authorised personnel is trained directly at the manufacturer’s premises and has original spare parts and
accessories.
Contact Nilsk Alto / Clarke Retailer indicated below for service or to order spare parts and accessories, speci-
fying the machine model and serial number.
(Apply Retailer label here)
5
Serial Number Label
The machine serial number and model name are
marked on the plate (see the example to the side).
Product code and year of production are marked on
the same plate.
This information is useful when requiring machine
spare parts. Use the following table to write down
the machine identication data.
Model: Scrubber-Dryer VANTAGE 14
Prod. Nr: 9087345020
GVW: 81 kg/180 lb
42 A
Type E Floor cleaning machine
ANSI/UL 583
CSA STD C22.2 N.68-92
A Nilfisk-Advance Brand
IPX4
Charg.100-240Vac 50/60Hz
Control Nr:
3084826
Serial No: ..................
Date code: .......
LpA = 64 dB(A)
Battery 12 Vdc
2%
“Made in Hungary”
Nilfisk-Advance, Inc.
Plymouth, MN, USA
www.advance-us.com
P100771A
MACHINE model .............................................................................................
PRODUCT number ..........................................................................................
MACHINE serial number .................................................................................
Service Manual – Scrubtec 337.2 / Vantage 14
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.
WARNING!
max.2%
Do not use the machine on slopes with a gradient exceeding the specications.
6
Symbols
Danger! It indicates a dangerous situation with risk of death for the operator.
Warning! It indicates a potential risk of injury for people or damage to objects.
Caution! It indicates a caution related to important or useful functions.
Note: It indicates a remark related to important or useful functions.
General Instructions
Specic warnings and cautions to inform about potential damages to people and machine are shown below.
Warning! Make sure to follow the safety precautions to avoid situations that may lead to
serious injuries.
− Before performing any cleaning, maintenance, repair or replacement procedure, turn the func-
tion selection knob to “0” and disconnect the battery connector.
− 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.
− Keep the battery away from sparks, ames and incandescent material. During the normal opera-
tion explosive gases are released.
− Battery charging produces highly explosive hydrogen gas. Keep the cover open during battery
charging and perform this procedure in well-ventilated areas and away from naked ames.
Service Manual – Scrubtec 337.2 / Vantage 14
Caution! Make sure to follow the safety precautions to avoid situations that may lead to
serious injuries, damages to materials or equipments.
− Carefully read all the instructions before performing any maintenance/repair procedure.
− 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 use the machine if the battery charger cable or plug is 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 battery.
− Always protect the machine against the sun, rain and bad weather, both under operation and
inactivity condition. Store the machine indoors, in a dry place: This machine must be used 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 User Manual.
− 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 theyr safety.
− Children should be supervised to ensure that they do not play with the machine.
− Close attention is necessary when used near children.
− Use only as shown in this Manual. Use only Nilsk Alto / Clarke recommended accessories.
− Check the machine carefully before each use, always check that all the components have been as-
sembled 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.
− Pay attention to the machine moving parts. When using the machine, the deck can abruptly turn
by 180°.
− Do not use the machine on an incline.
− 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 scaffoldings, especially where there is a risk of falling objects.
− Do not lean liquid containers on the machine, use the relevant can holder.
− The machine operating 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%.
General Information
7
Service Manual – Scrubtec 337.2 / Vantage 14
− When using oor cleaning detergents, follow the instructions on the labels of the detergent bot-
tles.
− 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.
− 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 afxed 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 brushes and pads supplied with the machine or those specied in the User Manual. Using
other brushes or pads could reduce safety.
− In case of machine malfunctions, ensure that these are not due to lack of maintenance. If neces-
sary, 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
(battery, etc.), which are subject to standards that require disposal in special centres (see Scrapping chapter).
General Information
8
Machine Lifting
Warning! Do not work under the lifted machine without supporting it with safety stands.
Machine Transportation
Warning! Before transporting the machine, make sure that:
All covers are closed.
The battery is disconnected.
The machine is securely fastened to the means of transport.
Service Manual – Scrubtec 337.2 / Vantage 14
Transparent cover with vacuum grid
Machine Nomenclature (know your machine)
Vacuum grid with
automatic shut-off float
General Information
9
Battery charger
cable holder
Fuses
Serial number plate/
technical data/
conformity certification
Cover latch
Accessory and battery
compartment cover
(open)
Squeegee
Squeegee blades
assembly
GEL/AGM
battery
Battery charger
Battery
connection
connector
Handlebar with
control panel
Deck bumper
wheels
Can holder
Battery charger
cable
Solution tank filler plug
Brush/pad-holder deck
Squeegee vacuum hose
Brush rotation direction
Accessory and battery
compartment cover (closed)
Vacuum system
motor
Rear wheels
on fixed axle
Tanks assembly
(solution tank and recovery tank)
Brush deck gearmotor
Brush deck wheels
P100772A
Service Manual – Scrubtec 337.2 / Vantage 14
Program selection knob/rotary switch
Control Panel
General Information
10
Scrubbing program:
brush - solution flow activation
Drying program:
brush - vacuum system activation
Brush levers
Battery charge LED indicators
Scrubbing and drying program: Brush activation
- Vacuum system activation
- Solution flow activation
Machine start-up
enabling push-button
Machine switching off “0”
Handlebar inclination adjusting lever
Brush levers
Solution flow switch
P100773A
Service Manual – Scrubtec 337.2 / Vantage 14
General Information
Service and Diagnostic Equipment
Besides a complete set of standard meters, the following instruments are necessary to perform fast checks and
repairs on Nilsk Alto / Clarke machines:
• Laptop computer charged with the current version of EzParts, Adobe Reader and (if possible) Internet
connection
• Digital Volt Meter (DVM)
• Amp clamp with possibility of making DC measurements
• Hydrometer
• Battery charge tester to check 12 V batteries
• Static control wrist strap
• Dynamometric wrench set
• A copy of the User Manual and Spare Parts List of the machine to be serviced (provided with the machine
or available at www.advance-us.com or other Nilsk Alto / Clarke websites).
The following equipment is also available at Nilsk Alto / Clarke Centers:
• Vacuum water lift gauge, P/N 56205281
11
Service Manual – Scrubtec 337.2 / Vantage 14
General Information
Technical Data
Description
Solution tank capacity 2,9 USgal (11 litri)
Recovery tank capacity 3,2 USgal (12 litri)
Min/max machine length at the handlebar 31.9 in / 50 in (810 mm / 1270 mm)
Machine width 18.5 in (470 mm)
Min/max machine height with adjustable handlebar 21.6 / 39.4 in (550 / 1000 mm)
Minimum turning radius 21.6 in (550 mm)
Cleaning width 14.5 in (370 mm)
Diameter of wheels on xed axle 8.4 in (214 mm)
Wheel pressure on the oor (*) 87 psi (0,6 N/mm
Brush/pad diameter 14.5 in (370 mm)
Brush/pad pressure on the oor 46 lb (21 Kg)
Brush/pad pressure with full tank 66 lb (30 Kg)
Min/max solution ow
Sound pressure level at workstation (ISO 11201, ISO 4871, EN 60335-2-72)
(LpA)
Machine sound pressure level (ISO 3744, ISO 4871, EN 60335-2-72) (LwA)
Vibration level at the operator’s arms (ISO 5349-1, EN 60335-2-72)
Maximum gradient when working 2%
IP protection class
Protection class (electric)
Vacuum system motor power 0.27 hp (200 W)
Vacuuming (with closed inlet) 27.7 in/H
Brush motor power 0.35 hp (260 W)
Brush motor speed 140 rpm
Total absorbed power 42 A (0.5 kW)
Battery compartment size 17.8x6.9x9.4 in (350x175x240 mm)
Battery voltage 12 V
Standard battery 12V 55AhC20 AGM spiracell 12V 84AhC5 AGM
Battery charger 100-240 VAC
Work autonomy (standard battery) 2 hour 1 hour
Weight without battery and with empty tanks
Gross vehicle weight (GVW) 179 lb (81 kg)
Shipping weight
Nilsk Alto
SCRUBTEC 337.2
One drop: 0.066 gpm (0.25 litres/min)
Two drops: 0.13 gpm (0.5 litres/min)
64 dB(A) ± 3 dB(A)
84 dB(A)
2
98.4 in/s
159 lb (72 kg) 172 lb (78 kg)
(< 2.5 m/s2)
X4
III
O (710 mmH2O)
2
97 lb (44 kg)
Clarke
VANTAGE 14
2
)
12
(*) Machines have been tested under the following conditions:
◦ Battery maximum size
◦ Maximum brush and squeegee size
◦ Full clean water 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
Service Manual – Scrubtec 337.2 / Vantage 14
Dimensions
17 in - 432 mm
General Information
13
28.6 in - 726 mm
17 in - 432 mm
18.7 in - 475 mm
P100774A
Service Manual – Scrubtec 337.2 / Vantage 14
General Information
Maintenance
The lifespan of the machine and its maximum operating safety are ensured by correct and regular maintenance.
Warning! Read carefully the instructions in the Safety chapter before performing any
maintenance procedure.
The following tables provides the scheduled maintenance. The intervals shown may vary according to particu-
lar working conditions, which are to be dened by the person in charge of the maintenance.
For instructions on maintenance procedures, see the following paragraphs.
Scheduled Maintenance Table
14
Procedure
Battery charging
Squeegee Cleaning
Brush Cleaning
Tank and Vacuum Grid Cleaning
Squeegee blade check and/or replacement
Solution valve check and cleaning
Brush deck rotation clutch check and/or replacement
(Only for Clarke Vantage 14)
Daily, after using the
machine
Weekly
Every six
months
Yearly
Chassis System
Frame (main parts)
1. Frame
2. Handlebar holder
3. Wheels on xed axle
2
Chassis System 15Service Manual – Scrubtec 337.2 / Vantage 14
1
3
P100775
Control System
Functional Description
Control System 16Service Manual – Scrubtec 337.2 / Vantage 14
The function control is performed with the program
selection knob/rotary switch (SW1), the machine
start-up enabling push-button (SW2) (which can be
used simultaneously with the brush levers) and the
solution ow switch (SW3).
The switch outputs controls the relevant outputs: re-
The LED electronic board (EB1) is equipped with 3
LEDs which indicate the battery charge level, both
during operation and while recharging:
Battery charge level
LED display
lay (K1) for brush motor, relay (K2) for vacuum system motor, solenoid valve (EV).
The control circuit are protected by the fuse (F3).
The negative output of the battery charger (B2) allows function activation when battery level is sufcient and the battery charger is not connected to the
electrical mains.
Diagram of Output Activation according to the Position of the Switches (SW1), (SW2)
and (SW3)
Program selection knob/
rotary switch (SW1)
settings
O
Machine start-up
enabling push-button
(SW2) settings (with
brush activation levers)
Pressed/released Off Off Off
Released Off Off On
Pressed On On On
Released Off Off Off
Pressed On On Off
Released/ Off Off On
Pressed On Off On
Brush motor (M1) Solenoid valve (EV) Vacuum system motor
(M2)
Solution ow push-button setting (SW3) Symbols Solenoid valve ON time
0
1
(EV)
2 sec 2 sec
Always ON -
Solenoid valve OFF time
(EV)
Component Locations
Control System 17Service Manual – Scrubtec 337.2 / Vantage 14
• Handlebar with control panel
• Program selection knob/rotary switch (SW1)
• LED electronic board (EB1)
• Brush levers
Machine start-up
enabling push-button
(SW2)
Solution ow switch
(SW3)
Handlebar with control
panel
Brush levers
Handlebar inclination
and height adjusting
lever
• Machine start-up enabling push-button (SW2)
• Solution ow push-button (SW3)
• Wiring harness
• Handlebar inclination adjusting lever
Program selection
knob/rotary switch
(SW1)
Wiring harness
LED electronic board
(EB1)
P100777A
Removal and Installation
LED Electronic Board (EB1) Disassembly/Assembly
Control System 18Service Manual – Scrubtec 337.2 / Vantage 14
Disassembly
1. Drive the machine on a level oor. Make sure
that the machine cannot move independently.
2. Turn the machine program selection knob to “0”.
3. Disconnect the battery connector.
4. On the lower side of the handlebar with the
control panel, unscrew the screws (A).
5. Lower the upper side (B) of the handlebar with
the control panel.
A
A
6. Disconnect the connector (C) of the LED
electronic board (D). Remove the screws (E) and
remove the LED electronic board (D).
7. If necessary, disconnect the connector (F) and
remove the solution ow push-button (G) by
disengaging the inner tabs (H).
B
A
G
C
F
E
D
P100778A
H
E
Control System 19Service Manual – Scrubtec 337.2 / Vantage 14
LED Electronic Board (EB1) Disassembly/Assembly (Continues)
8. If necessary, remove the selector assembly (N) of the machine program selection knob (I), as shown
below:
• Disconnect the connectors (J)
• On the outer side, turn the knob (I) on the position (K) (vacuum system activation).
• Loosen the threaded dowel inside the housing (L), then remove the knob (I) from the housing.
• Remove the screws (M) and, from the inside, remove the selector assembly (N) of the knob (I).
Assembly
9. Assemble the components in the reverse order of disassembly.
J
N
J
K
I
L
M
P100779A
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