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ATTIX 751-01/-11/-21ATTIX 751-2M/-0HATTIX 761-21XC/-2MXC ATTIX 763-21ED/-2MEDATTIX 791-21/-2M/B1ATTIX 751-61/-71ATTIX 19 Gallon/-AEATTIX 19 Gallon/AS/PE2
Repair Manual
A. Safety instructions
B. Technical data
C. Components
D. Operation
E. Troubleshooting
F. Spare parts
G. Tools
H. Wiring
Nilfisk ALTO
Attix7_ver.1.0_140105
Preface .....................................................................7
Symbols used to .....................................................................7mark instructions
A Safety instructions .....................................................................8
B Technical data .....................................................................9
C Components 1 Trolley with container and adapter ring....... 122 Cleaner heads............................................. 123 Filter cleaning.............................................. 134 Suction turbines.......................................... 145 Electrical components................................. 15
D Operation 1 Automatic filter cleaning(Attix 761/-21XC/-2M / 763-21ED/-2MED19 Gallon/AS/P2)......................................... 17
2 EC drive (Attix 791-21/-2M/B1)....................173 EC-3 electronics (Attix 791-21/-2M/B1)........174 Electronic starter,
EC-3 electronics (Attix 791-21)....................175 Electronic flow sensor (Attix 791-2M/B1).....176 Layout of electronic flow sensor EC
(Attix 791-2M/B1).........................................187 Electronic soft start
(Attix 751-01/-11, Attix 19 Gallon)................ 188 Electronic starter with speed control
(Attix 751-21)............................................... 189 Electronic flow metering (Attix 751-0H)....... 1810 Electronic flow metering (Attix 751-2M)...... 1811 Electronic magnet control (Attix 761-21XC,
763-21ED, 9 Gallon/AS/PE2)...................... 1812 Electronic flow sensor XC (Attix 761-2MXC,
763-2MED).................................................. 1813 Turbine/temperature monitoring
(Attix 751-61/-71, 19 Gallon AE).................. 1914 Electronic level control
(Attix 751-61/-71, 19 Gallon AE).................. 1915 Layout of electronic level control
(Attix 751-61/-71, 19 Gallon AE). 21
E Troubleshooting 1 ESD (electrostatic discharge)..................... 22
2 Troubleshooting on unit............................... 222.1 Unit will not work (all units with
brush motor). ............................................ 22
Contents
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Nilfisk ALTO
Attix7_ver.1.0_140105
2.2 Unit will not work (all units with EC drive)......................................................23
2.3 Warning sound! (all cleaners)...................... 243 Trolley/container...........................................253.1 Removing/fitting castors (all models except
Attix 751-71)................................................ 253.2 Removing/fitting wheels (all models except
Attix 751-71)................................................ 253.3 Removing/fitting feet (Attix 751-71)............. 253.4 Removing/fitting wheels (Attix 751-71)........ 263.5 Removing/fitting grips (all models except
Attix 751-71)................................................ 263.6 Removing/fitting lock (all models)................ 263.7 Removing/fitting grip with tensioning band
(all models).................................................. 273.8 Removing/fitting belt (all models)................ 283.9 Removing/fitting pump (Attix 751-61/-71,
19 Gallon AE).............................................. 293.10 Removing/fitting non-return pipe
(Attix 751-61/-71, 19 Gallon AE).................. 294 Cleaner head............................................... 304.1 Removing/fitting grip (Attix 751-61/-71,
19 Gallon AE).............................................. 304.2 Removing/fitting grip (Attix 751-01/-11/-21,
751-2M/-0H, 791-21/-2M/B1, 19 Gallon)..... 304.3 Removing/fitting grip (Attix 761-21XC/-2M
XC, 763-21ED/-2MED, 19 Gallon./AS/PE2).304.4 Removing/fitting hood (Attix 751-01/-11/-21/
-2M/-0H, 791-21, 751-61/-71, 19 Gallon AE)304.5 Removing/fitting hood (Attix 761-21XC/-2MXC,
763-21ED/-2MED, 19 Gallon/AS/PE2)........ 304.6 Removing/fitting cooling air filter
(Attix 791-2M/B1).........................................314.7 Removing/fitting hood (Attix 791-2M/B1)..... 314.8 Removing/fitting locking clamps (Attix
751-01/-11/-21/-2M/-0H, 761-21XC/-2MXC,763-21ED/-2MED, 751-61/-71, 19 Gallon AE, 19 Gallon/AS/PE) .................32
4.9 Removing/fitting locking clamps(Attix 791-21)............................................... 32
4.10 Removing/fitting locking clamps (Attix 791-2M/B1).........................................32
5 Suction turbine.............................................335.1 Removing/fitting clamping plate
(Attix 751-01/-11/-21/-2M/-0H/-61/-71,19 Gallon AE)............................................... 33
5.2 Removing/fitting clamping plate (Attix761-21XC/-2MXC, 763-21ED/-2MED,19 Gallon/-AE)............................................. 33
5.3 Removing/fitting clamping plate (Attix-791-21)............................................... 33
5.4 Removing/fitting clamping plate (Attix 791-2M/B1).........................................33
Contents
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Nilfisk ALTO
Attix7_ver.1.0_140105
5.5 Removing/fitting bracket for filter tightener(Attix 761-21XC/-2MXC, 763-21ED/-2MED, 19 Gallon/AS/PE2)........ 33
5.6 Removing/fitting hose for level monitoring (Attix 761-21XC/-2MXC,763-21ED7-2MED, 19 Gallon/AS/PE,751-61/-71, 19 Gallon AE)........................... 33
5.7 Removing/fitting motor carbon brushes (all models except with EC drive)................ 34
5.8 Removing/fitting motor (all models except with EC drive).............................................. 34
5.9 Checking motor, removing/fitting motor(Attix 791-21/-2M/B1)...................................34
6 Automatic filter cleaning (Attix 761-21XC/-2MXC, 763-21ED/-2MED,19 Gallon/AS/PE2).......................................34
7 Electrical...................................................... 357.1 Removing/fitting electrical components....... 357.2 Removing/fitting power cord (Attix 751-01/-11
-21/-0H/-2M/-61/-71, 791-21, 19 Gallon AE)357.3 Removing/fitting power cord (Attix 761-21XC/
-2MXC, 763-21ED/-2MED, 19 Gal/AS/PE2).357.4 Removing/fitting socket (Attix 791-2M/B1)...357.5 Removing/fitting power cord
(Attix 791-2M/B1).........................................367.6 Checking electronic flow metering EC in
manual mode (Attix 791-2M/B1).................. 377.7 Checking electronic flow metering EC in
automatic mode (Attix 791-2M/B1).............. 387.8 Checking flow sensor detection (performance)
of electronic flow metering(Attix 751-2M/-0H, 761-2MXC, 763-2MED,791-2M/B1).................................................. 39
7.9 Checking and calibration (adjustment)of flow sensor (Attix 751-2M/-0H, 761-2MXC, 763-2MED, 791-2M/B1)...................39
7.10 Removing/fitting electronic flow metering EC(Attix 791-2M/B1).........................................39
7.11 Checking electronic level control in manualmode (Attix 751-61/-71,19 Gallon AE)......... 40
7.12 Checking electronic level control inautomatic mode (Attix 751-61/-71,19 Gallon AE)...............................................41
7.13 Calibrating electronic level control(Attix 751-61/-71, 19 Gallon AE).................. 43
7.14 Removing/fitting electronic level control(Attix 751-61/-71, 19 Gallon AE).................. 43
7.15 Checking temperature sensor(Attix 751-61/-71, 19 Gallon AE).................. 44
7.16 Removing/fitting temperature sensor/flow sensor (Attix 751-61/-71/-2M/-0H, 19 Gallon AE, 763-2MED, 791-2M/B1).........44
Contents
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Nilfisk ALTO
Attix7_ver.1.0_140105
7.17 Checking, removing/fitting electronic soft start (Attix 751-01/-11, 19 Gallon)................ 44
7.18 Checking, removing/fitting electronic EAwith speed control (Attix 751-21)................. 44
7.19 Checking, removing/fitting electronic flowmetering (Attix.751-2M/-0H)........................ 44
7.20 Checking, removing/fitting electronic magnetcontrol (Attix 761-21XC, 763-21ED, 19 Gallon/AS/PE2).......................................44
7.21 Checking level monitoring (Attix 761-21XC/-2MXC, 763-21ED/-2MED, 19 Gallon/AS/PE2)......................................44
7.22 Checking, removing/fitting electronic flowsensor XC (Attix 761-2MXC, 763-2MED).... 45
7.23 Potentiometer (hose diameter)(Attix 751-2M, 761-2MXC, 263-2MED, 791-2M/B1).................................................. 45
7.24 Checking piezo buzzer (Attix 751-2M/-0H, 761-2MXC, 763-2MED, 791-2M/B1)............45
7.25 Checking, removing/fitting electronic EA. with speed control EC-3 (Attix 791-21)........ 45
7.26 Checking, removing/fitting electronic EC-3 (Attix 791-21/-2M/B1)...................................45
7.27 Checking, removing/fitting RFI filter/varistor (Attix 791-21/-2M/B1)......................45
F Spare parts ............................................................................. 46
G Tools 1 Special-purpose tools.................................. 47
H Wiring 1 Wiring diagram (Attix 751-01)...................... 482 Wiring diagram (Attix 751-11, 19 Gallon).....493 Wiring diagram (Attix 751-21)...................... 504 Wiring diagram (Attix 751-2M)..................... 515 Wiring diagram (Attix 751-0H)..................... 526 Wiring diagram (Attix 761-21XC,
763-21ED)................................................... 537 Wiring diagram (Attix 761-2MXC,
763-2MXC).................................................. 548 Wiring diagram (Attix 791-21)...................... 559 Wiring diagram (Attix 791-2M/B1)................5610 Wiring diagram (Attix 751-61,
19 Gallon AE)...............................................5711 Wiring diagram (Attix 751-71)...................... 5812 Wiring diagram (Attix 19 Gallon AS/PE2).... 59
Contents
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Nilfisk ALTO
Attix7_ver.1.0_140105.
In this manual you will find the essentials you need to know when repairing wet and dry cleaners of the Attix 7 and 19 Gallon series.
When carrying out re-pairs, make sure you have a suitable work-bench or the like with the necessary power supply available.
If you determine an error in operation, be sure to refer the customer to the user manual.
A fault in the equipment can have a number of cau-ses. Chapter E Trouble-shooting will help you here.
Use the illustrated spare parts lists for your repairs. These show you the locati-on of the individual parts and the sequence in which they are assembled.
Read the technical infor-mation sheets. These will tell you about any techni-cal modifications made after publication of this repair manual.
Technical information sheets are a supplement to the spare parts list until a follow-on publication.
Repair manuals and tech-nical information sheets should be available at the site where repairs are car-ried out. Further repair manuals of the Attix series may be necessary for repairs to the equipment.
It is not permitted to give them to third parties.
Use original Nilfisk ALTO spare parts only!
Symbols used to mark in-structions
Safety instructions mar-ked with this symbol in this manual must be ob-served to prevent danger to persons.
This symbol is used to mark safety instructions that must be observed to prevent damage to the equipment and degradati-on of performance.
This symbol indicates tips and instructions to simpli-fy work and to ensure safe operation.+
Preface
7/59
ANilfisk ALTO
For your own safety
Repairs should only be made by someone who has received proper instructions for the job or who is a qualified elec-trician.
Observe national safety directives and regulations for the electrical enginee-ring trade, in particular:
IEC 60335-2-69EN 60335-2-69
DIN VDE 105 part 1:operation of electrical power installations
DIN VDE 0701/0702:repair, modification and testing of electrical instal-lations
Before starting the equip-ment, be sure to read the accompanying service manual, and keep it close as ready reference.
The equipment should only be used by persons who have been instructed in its use and are authori-zed to do so.
ESD (e lec t rosta t ic discharge)
Observe the following ESD precautions before any repair of or near electronic parts:
• Touch the protective conductor to discharge your own body.
• Possibly wear an anti-static wrist strap.
• Use a conducting floor or tabletop.
• Never touch a circuit board or electronic components, always hold them by the plastic or insulation.
• Transport electronic parts in conductive packaging (e.g. special ESD packages).
Attix7_ver.1.0_140105
Safety instructions
Sa
fety
In
st
uc
tio
ns
r
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Attix7
_ve
r.1.0
_1
40
10
5
Version /
TypeAttix
751-01 751-21 751-2MNational
VariantsZA EU DK CH GB 110V
GB 230V
EU EU EU DK EU DKGB
110VGB
230V
Voltage V 110 110 230
Frequency Hz
Fusing A 25 13 10 16 10 25 13
Power consumption PIEC W
Connected load for appliance socket
W - 2400 1550 1800 2400 1100 1550 1800
Total connected load W - 3600 2750 3000 3600 2300 2750 3000
Power cord lenght m 10 10
Power cord type
H05RR-F3G0,75
H05RR-F3G1,5
H07BQ-F 3G2,5
H07RN-F3G1,5
H05RR-F3G1,0
H05RR-F3G1,5
H05RR-F3G1,0
H07BQ-F 3G2,5
H05RR-F3G1,5
Protection class II
Protection category
RFI suppression
Width mm
Depth mm
Hight mm
Weight kg
Tank volume l
Air volume flow (max) l/min
Static wate lift (max) Pa
Sound pressure level at 1m, EN 60704-1
dB(A)
Operating noise dB(A)
751-11 751-0H 761-21 XC
230 230
50/60
16 10
I II
970
25 27
7,5
I
7,5
H05RR-F3G1,0
H05RR-F3G1,5
1100
2300
2400
3600
-
-
Dim
en
sio
ns
an
dw
igh
t
Un
it-s
pe
cif
ic
da
ta
IPX4
EN 55014-1
580
605
57
64 60
3600
Ele
ctr
ica
ld
ata
70
12001000
16
1200
Pro
tec
-
tio
n
23000
64
3600 3100
23000 20000
Tech
nica
l Da
ta
Technical data
9/59
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Attix7
_ve
r.1.0
_1
40
10
5
Version /
TypeAttix 763-21 ED 761-2M XC 763-2M ED 791-21 751-71
National
VariantsEU EU EU EU EU
GB110V
GB230V
EU DK CH EU
Voltage V 230 230 230 230 230 110 230 230Frequency HzFusing A 25 13 16 16Power consumption PIEC WConnected load for appliance socket
W 1550 1800
Total connected load W 2750 3000Power cord lenght m 10 10(FI)
Power cord type
H07RN-F3G1,5
H07BQ-F 3G2,5H07RN-F3G1,5
Protection class
Protection category
RFI suppression
Width mm 480Depth mm 510Hight mm 1284 970 1280 875Weight kg 17 27 17 31Tank volume l 30 70 30
Air volume flow (max) l/minStatic wate lift (max) Pa
Sound pressure level at 1m, EN 60704-1
dB(A)
Operating noise dB(A)
36007,5
23000
64
580605
3600
970
70
791-2M/B1 751-61
230
1050/60
16
Dim
en
sio
ns
an
dw
igh
t
25
Un
it-s
pe
cif
ic
da
ta
I
IPX4
33
EN 55014-1
57
1200
2400 650
Pro
tec
-
tio
n
Ele
ctr
ica
ld
ata
H05RR-F3G1,5
H05RR-F3G1,0
H05RR-F3G1,5
18507,5
Tech
nica
l Da
ta
Technical data
10/59
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Attix7
_ve
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_1
40
10
5
Version /
Type Attix19 Gallon 19 Gallon-AS/PE2
Voltage V
Frequency Hz
Fusing A
Power consumption HP 1,4 1,4Connected load for appliance socket
HP 0,5 0,5
Total connected load HP
Power cord lengt ft 25 25
Power cord type
SJTW-AAWG14/3
SJTW-AAWG14/3
Protection class
Protection category
RFI suppression
Width in
Depth in
Height in
Weight ib 55 60
Tank volume gal
Volume flow (air) cfm
Static water lift in
Sound pressure level at 1m EN 60704-1
dB(A)
Operating noise dB(A)
127
93
64
19 Gallon-AE
73
24
38
1,9
I
IPX4
EN 55014-1
Un
it-s
pecif
ic
data
57
120
60
15
Pro
tecti
on
Ele
ctr
icalD
ata
Dim
en
sio
ns
an
dw
eig
ht 23
19
1,1
0,8
SJTW-A AWG14/3
35
Tech
nica
l Da
ta
Technical data
11/59
CNilfiskALTO
Attix7_ver.1.0_140105
1 Trolley with container and adapter ring
1) Base frame2) Adapter ring3) Container4) Belt
2 Cleaner heads
Attix 751-01,-0H Attix 751-11/-21, Attix 19 GallonAttix 761-21XCAttix 791-21
3
2
4
Attix7 3516
1
Attix5 0602 Attix5 0601
Components
Co
mp
on
en
ts
12/59
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Attix7_ver.1.0_140105
Attix 751-2MAttix 761-2MXCAttix 763-2MED
Attix 19 Gallon/AS/PE2XC
Attix 791-2M/B1 Attix 751-61/-71Attix 19 Gallon AE
3 Filter cleaning All units with automatic filter cleaning.
Filter cleaning with the Attix 7 is the same as for theAttix 560-XC (see repair manual Attix 550/560, section“Components” page 13).
Attix7 3517
Attix5 2903 Attix7 3508
Attix7 3608
Components
Co
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on
en
ts
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Attix7_ver.1.0_140105
4 Suction turbines
Attix 751-01/-11/-21/-2M/-0H/-61/-71Attix 19 Gallon/-AE
Attix 761-21XC/-2MXCAttix 763-2M EDAttix 19 Gallon/AS/PE2XC
Attix 791-21Attix 791-2M/B1
Attix5-0445
Attix5-2913
Attix EC-2809
Components
Co
mp
on
en
ts
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Attix7_ver.1.0_140105
5 Electrical components
Electronic flow metering ECAttix 791-2M/B1
Electronic level controlAttix 751-61/71
The following Attix 7 models are fitted with the same electronic circuitry used in other units:
Attix
Electronic
soft start
Electronic
EA
Electronic
flow
metering
Electronic
magnet
contol
Electronically
identical to Attix
See section
"Components" in
repair manual
751-01/-11
19 Gallon X
550-01, 12 Gallon
Attix 550/560 page 14
751-21
X
550-21, 12 Gallon RDF
Attix 550/560 page 14
751-2MX 550-2M/-2H
Attix 550/560 page 14
751-0HX 550-0H
Attix 550/560 page 14
761-21XC,
763-21ED,
19Gallon/AS/
PEX
560-21XC, 12 Gallon RDFD
Attix 550/560 page 14
761-2M/XC,
763-2M/ED X 560-2MXC/-2HXC
Attix 550/560 page 14
791-21X
590-21, 12 Gallon EC
Attix 590-21 page 8
Attix7 3631Attix7 3634
Components
Co
mp
on
nts
e
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Attix7_ver.1.0_140105
PRCD circuit-breakerAttix 751-71
Submersible pumpAttix 751-61/-71Attix 19 Gallon AE
Attix7-3640
Attix7-3638
Attix7-2360
GFCI circuit-breakerAttix 19 Gallon-AE
Components
Co
mp
on
nts
e
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DNilfisk ALTO
Attix7_ver.1.0_140105
5 Electronic flow sensor EC (Attix 791-2M/B1)
The following Attix 7 functions are identical to other models:
Several functions are integrated on this circuit board:- M a i n s w i t c h
Man - 0 - Auto ‘- Speed control- Remote control of EC
drive- Soft start- Automatic starter for
electrical tools- Flow detection by flow-
sensor- Setting of different hose
diameters
Alto no.: 302001710(200–230 Vac/50–60 Hz)
Alto no.: 302001709(100–120 Vac/50–60 Hz)
Operating data:saved operating data can be read out on the Alto ter-minal (no. 301 000 383 for operating data retrieval).
LED functions:Green LED flashes: unit on standby
Green LED on:flow > 22 m/s
Yellow LED on:flow > 20 m/s and < 22 m/s
Red LED on:flow < 20 m/s plus buzzer sounds
Soft start: the motor always makes a soft start.
Main switch, speed con-trol, automatic starter:as described in Attix 550/560 repair manual section D.
Flow sensor:as described in Attix 550/560 repair manual, section D.
Attix
761-21XC/-2MXC
763-21ED/-2MED 19
Gallon AS/PE2
791-21 /-
2M/B1
791-21 /-
2M/B1 791-21
Function
identical to Attix
see section
"Operation" in
repair manual
1 Function of automatic
filter cleaning system
X
560-21/-2M/-2H,
12 Gallon RDFD Attix 550/560
2 Function of EC.drive
X
590-21,
12 Gallon EC Attix 590-21
3Technical description
of electronic EC-3 X
590-21,
12 Gallon EC Attix 590-21
4Technical description
of electronic EA. EC-3 X
590-21,
12 Gallon EC Attix 590-21
Operation
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Attix7_ver.1.0_140105
6 Layout of electronic flow sensor EC (Attix 791-2M/B1)
P w r lino e e
eSpe depot ntiometer
Mai w chn s it
Motorterm nali
L1
N
o de ngS l ri jum erp
JS 1
er iT m nalflow sensor
0 8302 0042
rm alTe in piezo
zbuz er
Hosedia eterm
ti etepoten om r
LE reD d
LED ellowy
LED green
Terminalco p ssed rm re aif ow moni orl t
L1
N
Socketo etutll tz wirei
Operatingdata
ureado t
Plug-in jumpers raelf-calib tion
Cal bratii onbutton
1 6
C nn c r foo e to rr mote ntroe co lof EC rive d
The following Attix 7 functions are identical to other models:
Attix
751-01/-11
19 Gallon 751-21 751-0H 751-2M
761-21XC
763-21ED
19 Gal./AS/PE2
761-2MXC
763-2MED
Function
identical to
Attix
See section
"Operation" in
repair manual
7 Technical
description of
electronic
softstart X
550-01
12 Gallon Attix 550/560
8 Technical
description of
electronic
automatic starter.
X
550-21
12 Gal.RDF Attix 550/560
9 Technical
description of
electronic flow
measurment X 550-0H Attix 550/560
10 Technical
description of
electronic flow
measurment X 550-2M/-2H Attix 550/560
11 Technical
description of
electronic magnet
control X
550-21
12 Gal.RDFD Attix 550/560
12 Technical
description of
electronic flow
measurement XC X
560-2MXC/-
2HXC Attix 550/560
Operation
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Attix7_ver.1.0_140105
A sensor in the exhaust air duct (like flow sensor) measures the temperature of the air from the turbine. If the turbine reaches a temperature of more than 85°C, motor speed is reduced.
13 Turbine / temperature monitoring (Attix 751-61/-71,19 Gallon AE)
14 Electronic level control(Attix 751-61/-71, 19 Gallon AE)
Alto no.: 302001712(200–230 Vac/50–60 Hz)
Alto no.: 302001711(100–120 Vac/50–60 Hz)
Several functions are inte-grated on this circuit board:- Main switch Pump -
Auto - 0 - Man- Speed control in manu
al- Soft start- Level control- Turbine temperature-
monitoring
Main switch:this allows selection of three modes.
Pump:momentary contact for emptying the container. O n e - t i m e o p e r a t i o n causes the pump to run for 30 s.
Man:the turbine immediately starts.
Auto:the turbine and pump are controlled as a function of the level.
Speed control:the integrated speed con-trol only works in Man mode. The control range is 90° to 130°.
Advantages:- Optimal matching of
suction capacity to the application
- Prolonged turbine servi-ce life
- Reduced noise emissi-on
- Power savings
LED functions:Green LED (D2) on:operating voltage applied
Green LED (D6) on:pump on
Green LED (D7) on:motor on
Red LED (D3) flashes:microprocessor working
Red LED (D5) on:level - turn off motor
Yellow LED (D4) on:level - turn on pump
Continued on page 20
Operating data:saved operating data can be read out on the Alto ter-minal (no. 301 000 383 for operating data retrieval).
Operation
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Attix7_ver.1.0_140105
Level control:Level control by means of a pressure sensor is imple-mented to optimize working with the equipment. The le-vel in the container is metered in a rubber baffle pi-pe.The pressure sensor measures the difference in pres-sure between the container and the baffle pipe. Rising water level increases the pressure in the pipe. The pres-sure in the baffle pipe increases linearly with water level.
Man mode:The electronic circuitry cuts out the turbine upwards of a defined pressure (water level), and remains in this status until the cleaner is turned off and the container emptied. The pump cannot be started in manual mode. The power of the turbine can be altered by speed control.
Auto mode:Only the suction turbine runs when there is no water in the container. When the container fills with water, the pump is turned on. If more water flows into the container than the pump can convey out of the container, the level continues to rise. To prevent overfilling, the suction tur-bine is cut out at maximum level. As soon as the water le-vel is significantly reduced by the pump, the suction mo-tor is cut in again. Upon total emptying of the container, the pump is cut out with a time delay.
Pump mode:The Pump switch setting is a momentary contact (auto-matic reset). One-time actuation causes the pump to work for 30 s. This function can be used to completely empty the container. At the same time this is a safeguard against the pump running when it is dry.
Operation
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Attix7_ver.1.0_140105
15 Layout of electronic level control (Attix 751-61/-71, Attix 19 Gallon AE)
B2
Pe
sr
ns
rr
sue
seo
L1N
na
Term
il 1
Mo
tor
erv
DR
es
e. L
E
E
nL
Dg
ree
(D2
)S
ocke
tte
rmin
al
Pu
mp
oe
r le
Pw
in
L1Ne
Sp
ed
ot
er
pte
nio
met
L
ree
ED
gn
rn
(7
Mo
to o
D)
na
Term
il 2
or
Mo
t
LE
r
en
Dg
eP
um
on
p
(D6
)r
Ca
liba
tion
butto
n
eo
LE
D y
llw
el
p
Le
v p
um
on
(D4
)
LE
Dre
d
Mo
tor o
ff(D
5)
LE
Dre
(D)
d
3f
Ino
Re
ad
ou
to
pe
ratin
ga
da
t
Tem
pe
ratu
rese
nso
r
Operation
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Attix7_ver.1.0_140105
1 ESD (electrostatic discharge) - Touch the protective conductor to discharge static from your own body.
- Possibly wear an anti-static wrist strap.
- Use a conductive floor-tabletop.
- Never touch a circuitboard or electronic components, always holdthem by the plastic or insulation.
- Transport electronicparts in conductive packaging (e.g. SpecialESD packages).
Observe the following ESD precautions before any repairs to electronic circuitry:
2 Troubleshooting on unit
2.1 Unit will not work (all units with brush motor) Start:
line voltage must be present and plug must be plugged in.
Vol tage appl ied to switch?
Check plug and power c o r d , r e p l a c e i f necessary.
Do electronics work?Replace electronics.
Does motor work? Repair or replace motor.
Does cleaner work?
Cn
du
ct s
aty
ch
ec
.o
fek
Yes
No
No
Yes
No
Yes
Ye
s
No
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ENilfisk ALTO
Attix7_ver.1.0_140105
2.2 Unit will not work (all units with EC drive)
Start: line voltage must be present and plug must be plugged in.
Voltage applied to switch?
Check plug and power c o r d , r e p l a c e i f necessary.
Voltage applied to EC-3 electronics? (See c h e c k o f E C - 3 electronics)
Check electronics/ board and RFI filter, replace if necessary .
Does EC motor work? Check EC mo to r, replace if necessary.
Does cleaner work?
Co
nu
ct s
afe
tych
eck
.d
Yes
No
No
Yes
No
Yes
Ye
s
No
Do EC-3 electronics work? (See check of EC-3 electronics)
R e p l a c e E C - 3 electronics.
No
Yes
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ENilfisk ALTO
Attix7_ver.1.0_140105
2.3 Warning sound! (all cleaners)
Start: switch on “I” for full power, poten-tiometer set to correct hose diame-ter, unit in normal cleaning mode.
Remove hose from con-tainer fitting.
Check if hose or n o z z l e i s clogged.
Remove filter bag from container.
Insert new filter bag.
Check flow sensor, re-place if necessary.
Check flow sensor de-tection (function), i.e. electronic flow mete-ring, replace electronics if necessary.
Check adjustment of flow sensor, recalibrate if necessary.
Co
nd
uct
a
fety
ch
eck
.s
No Ye
s
Check filter, replace if necessary.
Warning gone.
Warning gone.
Warning still sounds.
Performance check of flow sensor: OK?
Warning still sounds.
Warning still sounds.
Warning still sounds.
Warning still sounds.
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ENilfisk ALTO
Attix7_ver.1.0_140105
3 Trolley/container
3.1 Removing/fitting castors (all models except Attix 751-71)
1. Use an Allen key (5 mm) to undo the countersunk head screw (1), and remo-ve the castor.
2. Fit in the reverse order.
3.2 Removing/fitting wheels (all models except Attix 751-71)
1. Lever off the wheel cap (1) with a screwdriver, and remove the wheel.
2. Fit in the reverse order.
1. Take the container out of the base frame, and raise the frame by laying the handle on the floor.
2. Unscrew the nut (1), and remove the foot with the screw.
3. Fit in the reverse order.
3.3 Removing/fitting feet (Attix 751-71)
Attix7 3648
1Attix7 3647
1
Attix7 3649
1
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ENilfisk ALTO
Attix7_ver.1.0_140105
1. Lever off the wheel cap (1) with a screwdriver.
2. Lever the clamping ring (2) off the axle with a screwdriver, and remove the wheel.
3. Fit in the reverse order.
Do not push the clamping ring too far onto the axle otherwise the wheel will not turn freely.
3.4 Removing/fitting wheels (Attix 751-71)
3.5 Removing/fitting grips (all models except Attix 751-71)
1. Undo the six screws (1) with a Phillips screwdriver, and remove the grips.
2. Fit in the reverse order.
3.6 Removing/fitting lock (all models)
1. Lever off the lock (1) with a screwdriver.
2. Fit in the reverse order, pressing the lock (1) firmly over the latch so that you hear it snap into place.
Attix7 3650
2
1
Attix7 3655
1
Attix7 3652
1
1 1
1
1 1
+
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ENilfisk ALTO
Attix7_ver.1.0_140105
3.7 Removing/fitting grip with tensioning band (all models)
1. Take the cleaner head with the adapter ring off the container, and lift the container out of the base frame.
2. Mark (1) the position of the grip (4) and the facing stop (5) on the container.
3. Undo the screw (2) on the tensioning band (3) with a screwdriver, and re-move the grip (4) and ten-sioning band (3).
4. Fit in the reverse order, placing the grip (4) and stop (5) between the mar-kings and lightly tightening the screw (2) on the ten-sioning band (3).
5. Set the container in the base frame, and lock it in place.
6. Align the grip (4) and stop (5) on the container in the base frame (7), and firmly tighten the screw (2) on the tensioning band (3).
Note:The contact faces of the contact spring (6) must be clean and free of corrosi-on.
Attix7 3657
1 1
4
76
7
Attix7 3661
Attix7 3660
7 7
Attix7 3659
11
2 35
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Attix7_ver.1.0_140105
3.8 Removing/fitting belt (all models)
1. Take the cleaner head with the adapter ring off the container, and lift the container out of the base frame.
2. Mark the position of the belt on the container (1).
3. Take out the C-coupling (2) with a long screwdriver (only cleaners used by fire brigades).
4. Thread a normal length of cord (3) or the like (60-80 cm) through one of the loops (4) of the tensioning device, and pull the loop (4) back over the catch (6). Detach the second loop (4) in the same way, and take off the belt (7).
5. Fit in the reverse order, making sure the belt (7) is correctly positioned.
Note:On cleaners used by fire brigades, always fit the C-coupling (2) first as a posi-tioning aid.
Attix7 3663
1
2
Attix7 3662
3
7
4
4
6
6
+
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Attix7_ver.1.0_140105
1. Take the cleaner head with the adapter ring off the container, and lift the container out of the base frame..
2. Take out the C-coupling (see 3.8/3, page 27).
3. Disassemble the plug (1) of the pump (3), undo the cable fixture (4) on the container, pull the cable through, and take out the pump.
Fit in the reverse order.
3.9 Removing/fitting pump (Attix 751-61/-71, Attix 19 Gallon AE)
3.10 Removing/fitting non-return pipe (Attix 751-61/-71, Attix 19 Gallon AE)
1. Remove the pump (1) (see 3.9, page 28).
2. Unscrew the non-return pipe (2) from the threaded fitting of the pump (1), and remove it.
3. Fit in the reverse order.
Note:The threaded fitting can be sealed with normal silicone.
Attix7 3664
13
4
Attix7 3668
21
+
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Attix7_ver.1.0_140105
4. Cleaner head
4.1 Removing/fitting grip (Attix 751-61/-71,19 Gallon AE)
As explained in the Attix 550/560 repair manual, section E, page 36. But first unscrew the clamping fixtures right and left (1).
The following repairs are identical as with other models.
Attix
751-01/-11/-21
751-2M /-0H
791-21/-2M /B1
19 Ga llon
761-21X C
761-2M X C
763-21ED
763-2M ED
19 Ga l./AS /P E2
Ide ntica l to
Attix
S e e se ction
"Trouble shooting"
in re pa ir m a nua l
4.2 Re m oving /
fitting grip X
550-01
12 Gallon
A ttix 550/560
page 36
4.3 Re m oving /
fitting grip X
560-21
12 Gal.RDFD
A ttix 550/560
page 37
Attix
751-01/-11/-21
751-2M /-0H
791-21/-2M /B1
19 Ga llon-AE
751-61/-71
761-21X C
761-2M X C
763-21ED
763-2M ED
19 Ga l./AS /P E2
Ide ntica l to
Attix
S e e se ction
"Trouble shooting"
in re pa ir m a nua l
4.4 Re m oving /
fitting hood X
550-01
12 Gallon
A ttix 550/560
page 36
4.5 Re m oving /
fitting hood X
560-21
12 Gal.RDFD
A ttix 550/560
page 37
Attix7 3611
1 1
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Attix7_ver.1.0_140105
4.7 Removing/fitting hood (Attix 791-2M/B1)
1. Unscrew the cooling air filter (see 4.6).
2. Unscrew the socket (see 7.4).
3. Undo the two screws (3) with an Allen key (5 mm), and take off the grip.
4. Undo the four screws (4) of the locking clamps with a Phillips screwdriver, and take off the hood.
5. Fit in the reverse order.
4.6 Removing/fitting cooling air filter (Attix 791-2M/B1)
1. Undo the screw (1) with an Allen key (5 mm), and take off the cover.
2. Pull off the filter insert (2) forwards.
3. Undo the four screws ( 3 ) w i t h a P h i l l i ps screwdriver, and take off the filter case.
4. Fit in the reverse order.
1
Attix7 3612
Attix7 3616
3
3
3
32
44
44
3
3
Attix7 3625
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Attix7_ver.1.0_140105
4.10 Removing/fitting locking clamps (Attix 791-2M/B1)
1. Remove the hood (see 4.7).
2. Take off the clamping plate (see Attix 590-21EC repair manual, section E).
3. Pull the locking clamps upwards and off.
4. Fit in the reverse order.
The following repairs are identical as with other models.
Attix
All m ode ls
e x ce pt
791-21/-2M /B1 791-21
Ide ntica l to
Attix
Se e se ction
"Trouble shooting"
in re pa ir m a nua l
4.8 Re m oving / fitting
locking cla m ps
X
550-01
560-21
12 Gallon/-RDFD
Attix 550/560
page 45
4.9 Re m oving / fitting
locking cla m ps X 590-21
A ttix 590-21
page 18
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Attix7_ver.1.0_140105
5. Suction turbine
5.4 Removing / fitting clamping plate (Attix 791-2M/B1).
1. Remove the hood (see 4.7).
2. Remove the clamping plate (see Attix 590-21EC repair manual, section E).
3. Fit in the reverse order.
The following repairs are identical as with other models.
The following repairs are identical as with other models.
Attix
751-01/-11/-21
751-2M/-0H
19 Gallon-AE
751-61/-71
761-21XC
761-2MXC
763-21ED
763-2MED
19 Gal./AS/PE2 791-21
Identical to
Attix
See section
"Troubleshooting"
in repair manual
5.1 Removing /
fitting clamping
plate X
550-01
12 Gal./-RDFD
Attix 550/560
page 38
5.2 Removing /
fitting clamping
plate X
560-21
12 Gal./-RDFD
Attix 550/560
page 39
5.3 Removing /
fitting clamping
plate X 590-21
Attix 590-21
page 18
Attix
761-21XC
761-2MXC
763-21ED
763-2MED
19
Ga l./AS/PE2
761-21XC
761-2MXC
763-21ED
763-2MED
19
Ga l./AS/PE2
751-61/-71
19 Ga llon AE
Identica l to
Attix
See section
"Troubleshooting"
in repa ir m anua l
5.5 Rem oving / fitting
bracket for filte r
tightener X
560-21
12 Gal./-RDFD
Attix 550/560
page 40
5.6 Rem oving / fitting
hose for leve l
m onotoring X
560-21
12 Gal./- RDFD
Attix 550/560
page 40
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Attix7_ver.1.0_140105
The following repairs are identical as with other models.
Attix
All models
except
those with
EC-drive
791-21/-
2M/B1
761-21XC
761-2MXC
763-21ED
763-2MED
19 Gal./AS/PE2 Identical to Attix
See section
"Troubleshooting"
in repair manual
5.7 Removing /
fitting motor
carbon brushes X
560-21 12 Gallon/- RDFD
Attix 550/560 page 41
5.8 Removing /
fitting motor X
560-21 12 Gallon/- RDFD
Attix 550/560 page 41
5.9 Checking motor,
removing / fitting
motorX 590-21EC
Attix 590-21 page 19-20
6 Automatic filter
cleaning X
560-21 12 Gallon/- RDFD
Attix 550/560 page 42-44
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Attix7_ver.1.0_140105
7 Electrical Following repairs or servi-cing, perform a thorough electrical check.Caution!Make sure the power plug is pulled out while you are carrying out repairs.
7.1 Removing / fitting electrical components
Caution!Work with the appropriate wiring diagram (see secti-on H). It is helpful if you make a sketch to clearly show which cable (note the color) matches which terminal.
7.4 Removing/fitting socket Attix 791-2M/B1
2. Undo the six screws (2) holding the cover with a Phillips screwdriver, and take off the cover.
1. Use a screwdriver to take off the cover frame (1).
The following repairs are identical as with other models.
Attix
751-01/-11/-21
751-2M/-0H
19 Gallon/-AE
751-61/-71
791-21
761-21XC
761-2MXC
763-21ED
763-2MED
19 Gal./AS/PE2 Identical to Attix
See section
"Troubleshooting"
in repair manual
7.2 Removing /
fitting power
cord X
550-01 12 Gallon/- RDF
Attix 550/560 page 45
7.3 Removing /
fitting power
cord X
560-21 12 Gallon/- RDFD
Attix 550/560 page 45
Attix7 3623
1
2
2
2
2
Attix7 3624
22
+
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Attix7_ver.1.0_140105
3. Disconnect the cable on the socket (3), undo the two screws (4) with a Phil-lips screwdriver, and take off the case.
4. Fit in the reverse order.
7.5 Removing/fitting power cord (Attix 791-2M/B1)
1. Remove the hood (see 4.7).
2. Remove the power cord (see Attix 590-21EC repair manual, section E, page 21).
4 4
Attix7 3620
3
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Attix7_ver.1.0_140105
7.6 Checking electronic flow metering EC in manual mode(Attix 791-2M/B1)
N
Power line
L1
pLamect niEC el ro cs
2 030 00 7642 030 00 764
LED redLED yel owl
LED green
1. Make sure the unit is isolated from the power.2. Remove the hood (see 4.4).3. Set the cleaner head on a clean container
(w/o a filter bag) and withdraw the hose from the container fitting.
4. Apply line voltage and set the switch to “I”.Visual check:Green LED on = EC electronics driven, air flow OK.Yellow LED on = EC electronics driven, air flow reduced.Red LED on = EC electronics driven, air flow too low.
5. Make sure the unit is isolated from the power.6. Withdraw the two cables for the EC electronics on
the switch and connect the lamp 302000764.7. Apply line voltage and set the switch to “I”.
Check:Lamp “EC electronics” illuminates immediately.Red LED illuminates and warning sounds.
“MAN” OK?
Ja - “MAN” mode OK.
No -replace electronic and recalibrate
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Attix7_ver.1.0_140105
7.7 Checking electronic flow metering EC in automatic mode (Attix 791-2M/B1)
1. Make sure the unit is isolated from the power.2. Remove the hood (see 4.4).3. Set the cleaner head on a clean container
(w/o a filter bag) and withdraw the hose from the container fitting.
4. Insert the “tool” lamp in the socket (302000765) and rotate the bulb one turn out of the receptacle.
5. Apply line voltage and set the switch to “Auto”.6. Visual check:
Green LED flashes (standby).7. Check:
Turn the bulb properly into the receptacle. The “tool” lamp illuminates immediately, and the motor starts.The red, yellow and green LEDs illuminate.The red and yellow LEDs extinguish after 3-5 s. Rotate the bulb one turn out of the receptacle. The motor stops (runs on) after 3-5 s.
“Auto” Mode OK?
Yes - “Auto” Mode OK.
No - Replace electronic and recalibrate
N
Power line
L1
Termi alnEC el tronicsec
eLED r d
Tool
Lamp
302000765
LED yellow
LED green
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Attix7_ver.1.0_140105
The following repairs are identical as with other models.
7.10 Removing/fitting electronic flow metering EC (Attix 791-2M/B1)
1. Remove the hood (see 4.7).
2. Disconnect the power cord, cables to EC electro-nics, flow sensor, buzzer, and potentiometer from the electronics. Discon-nect L1 and N on the socket (2).
Withdraw the plug for the speed control from the EC electronics.
3. Undo the retaining screw (3) on the rotary knob with a Phil l ips screwdriver, and remove the rotary knob.
4. Undo the two retaining screws (4) behind the rota-ry knob with a Phillips screwdriver, and remove the electronics.
5. Fit in the reverse order.
Attix
751-2M/-0H
761-2MXC
763-2MED1
791-2M/B1 Identical to Attix
See section
"Troubleshooting"
in repair manual
7.8 Checking flow sensor
detection (performance) of
electronic flow metering X 550-2M/-0H
Attix 550/560 page 54
7.9 Checking and calibration
(adjustment) of flow
sensor X 550-2M/-0HAttix 550/560 page 55-56
2
2
2
2 2
2
2
Attix7 3630
Attix7 3633
3
4
4
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7.11 Checking electronic level control in manual mode (Attix 751-61/-71, 19 Gallon/AE)
1. Make sure the unit is isolated from the power supply.2. Remove the hood (see 4.4, page 31).3. Place the cleaner head on a table so that the hose
hangs downwards.4. Remove the two motor cables from the board and
the switch.5. Connect the test lamp 302000764.6. Apply line voltage and set the switch to “I”
(Man) for full power.Visual check:Green LEDs (D2 and D7) illuminate.Red LED (D3) flashes (microprocessor working).Check soft start and speed control:The motor lamp slowly starts to illuminate (soft start). Set the switch to minimum speed.The brightness of the lamp reduces.Check level control:Mark the hose at 11 cm.Slowly immerse the hose in a container filled with water until the lamp extinguishes. This turn-off point should be at the marking 11 cm +1 cm (recalibrate the level control if necessary (see 7.) and repeat the procedure).Green LED (D2) illuminates, red LED (D3) flashes.Red LED (D5) illuminates.
7. The system can be activated again after a reset.
“Manual” OK?
Yes - “MAN” Mode OK.
No - Replace electronic and recalibrate level
B2P es ur sen orr s e s
D greLE enOperating voltage
esentpr(D2)
Power line
1L
N
Spe depotentiomet re
DLE greeno or M t on
)(D7
grLED eenPump on(D6)
Calibrationbutton
D wLE yelloLevel
u p P m on( )D4
LED redMotor off(D5)
LED red(D3)Microprocessorworking1H
L pamMo ot r3 000702 64
Attix7 3641
1
m1
c
7 c
m
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7.12 Checking electronic level control in automatic mode (Attix 751-61/-71, 19 Gallon/AE)
1. Make sure the unit is isolated from the power supply.2. Remove the hood (see 4.4, page 30).3. Place the cleaner head on a table so that the hose
hangs downwards.4. Remove the two motor cables from the board and
the switch.5. Connect the test lamp 302000764. 6. Insert the test lamp 302000765 in the socket.7. Apply line voltage and set the switch to “Auto”.
Visual check:Green LEDs (D2 and D7) illuminate. Red LED (D3) flashes. Check soft start:The motor lamp slowly starts to illuminate (soft start).
Continued on page 42
B2r s e e oP es ur s ns r
LED greenOper oltating v age
present(D2)
Po er linw e
L1
N
LED g e n r eM o not r oD7)(
eenLED grp onPum
6)(D
ibrCal ationonbutt
wLED yelloLevelPump on( )D4
LED redMotor off(D5)
ED redLicrop ssorM roce
wo kinr g(D3)
H1LampMotor
0 0 6302 0 7 4
Pump
Lamp H2
302000765
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Attix7_ver.1.0_140105
Check level control:Mark the hose at 7 and 11 cm (see 7.11, page 40).Slowly immerse the hose in a container filled with water until the lamp illuminates. This turn-on point should be at the marking 7 cm +1 cm (recalibrate the level control if necessary (see 7.13, page 40) and repeat the procedure).Green LEDs (D7, D2 and D6) illuminate. Red LED (D3) flashes (microprocessor working).Yellow LED (D4) illuminates (level - pump on).Continue to immerse the hose in water until the check lamp (motor) extinguishes. This turn-off point should be at the marking 11 cm +1 cm.Green LEDs (D2 and D6) illuminate.Red LED (D3) flashes.Yellow LED (D4) illuminates.Red LED (D5) illuminates.
8. Take the hose out of the water.Visual check:The check lamp (motor) illuminates after about 6 s.Green LEDs (D2, D7 and D6) illuminate.Yellow LED (D4) illuminates.Red LED (D3) flashes.After another 20-25 s the check lamp (pump) and LEDs (D4 and D6) extinguish.
9. Check pump mode:Set the switch to “Pump” and hold it there.The motor lamp extinguishes.The pump lamp illuminates.Green LEDs (D2 and D6) illuminate.Red LED (D3) flashes.Red LED (D5) illuminates.Yellow LED (D4) illuminates.After about 60 s the check lamp (pump) and LEDs (D6 and D3) extinguish.Briefly set the switch to “Pump” (it should automa-tically return to “Auto”).The motor lamp and pump lamp illuminate.Green LEDs (D2, D6 and D7) illuminate.Red LED (D3) flashes.Yellow LED (D4) illuminates.After about 30 s the lamp (pump) and LEDs (D4 and D6) extinguish.
“Automatic” OK?
Yes - “Auto” Mode OK.
No - Replace electronic and recalibrate level
Troubleshooting
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ENilfisk ALTO
Attix7_ver.1.0_140105
1. Make sure the unit is isolated from the power supply.
2. Remove the hood (see 4.4, page 30).3. Place the cleaner head on a table so that the hose
hangs downwards.4. Mark the hose at 7 cm (see 7.11, page 40).5. Place the jumper (53840) on X5 (1).6. Apply line voltage and set the switch to “I”.
Visual check:Green LED (D2) illuminates.Yellow LED (D4) and red LED (D5) flash.
7. Immerse the hose up to the marking in water, and press the calibration button (2) with an insulated tip. During calibration the LEDs (D4 and D5) will illuminate (about 2-3 s). After calibration they extinguish.
8. Remove the jumper from X5 (1), and check the level control after resetting with the switch.
7.13 Calibrating electronic level control (Attix 751-61/-71, 19 Gallon/AE)
7.14 Removing/fitting electronic level control (Attix 751-61/-71, 19 Gallon/AE)
1. Remove the hood (see 4.4).2. Withdraw the connections of the power line, motor
and temperature sensor from the electronics. Disconnect L1 and N on the socket. Take the two hoses off the pressure sensor.
3. Undo the retaining screw on the rotary knob with a Phillips screwdriver, and remove the rotary knob (see 7.10).
4. Undo the two retaining screws behind the rotary knob with a Phillips screwdriver, and remove the electronics (see 7.10).
5. Fit in the reverse order.
Attix7 3646
1
2
5DD
2D4
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ENilfisk ALTO
Attix7_ver.1.0_140105
The following repairs are identical as with other models.
Attix
751-61/-71,
19 Gallon AE
751-61/-71,
19 Gallon AE,
751-2M/-0H,
763-2MED
791-2M/B1
Identical to
Attix
See section
"Troubleshooting"
in repair manual
7.15Checking
temperature sensor X CentixAttix 350/360/Centix page 48
7.16Removing / fitting
temperature sensor
/ flow sensor X
550-2M/-0H Centix
Attix 350/360/Centix page 48
Attix
751-01/-11
19 Gallon 751-21 751-2M/-0H
Identical to
Attix
See section
"Troubleshooting"
in repair manual
7.17 Checking removing /
fitting electronic soft
start X
550-01 12 Gallon
Attix 550/560 page 47-48
7.18 Checking removing /
fitting electronic EA. X 550-21Attix 550/560 page 49-51
7.19 Checking removing /
fitting electronic flow
metering X 550-0H/-2M
Attix 550/560 page 52-57
Attix
761-21XC
763-21ED
19 Gal.
AS/PE2
761-21XC/-2MXC
763-21ED/-2MED
19 Gal. AS/PE2
Identical to
Attix
See section
"Troubleshooting"
in repair manual
7.20 Checking removing /
fitting electronic
magnet control X
560-21 12 Gallon RDFD
Attix 550/560 /Seite 60-63
7.21 Checking level
monitoring
X
560-21 12 Gallon RDFD
Attix 550/560 /Seite 63-64
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ENilfisk ALTO
Attix7_ver.1.0_140105
The following repairs are identical as with other models.
Attix
761-2MXC
763-2MED
751-2M
761-2MXC
763-2MED
791-2M/B1
751-2M/-0H
761-2MXC
763-2MED
791-2M/B1 Identical to Attix
See section
"Troubleshooting"
in repair manual
7.22 Checking /
removing
electronic flow
sensor XC X 560-2MXC
Attix 550/560 /Seite 66-68
7.23 Electronic
potentiometer
(hose diameter) X
560-21 12 Gallon RDFD
Attix 550/560 /Seite 69-70
7.24 Checking piezo
buzzer X 560-2MXC
Attix 550/560 /Seite 71
Attix 791-21
791-21
791-2M/B1
Identical to
Attix
See section
"Troubleshooting"
in repair manual
7.25 Removing / fitting
electronic EA. EC-3 X 590-21
Attix 590-21 /Seite 22-24
7.26 Checking removing /
fitting electronic EC-3 X 590-21
Attix 590-21 /Seite 25-26
7.27 Checking, removing /
fitting RFI filter /
varistor X 590-21
Attix 590-21 /Seite 26-27
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FNilfisk ALTO
Attix7_ver.1.0_140105
Please use the current spare parts list. +
Spare parts
Sp
are
pa
rts
46/59
GNilfisk ALTO
Attix7_ver.1.0_140105
1 Special-purpose tools
1. Calibration sensor (Alto no. 302000766)2. Electronic device to check EC turbine (Alto no. 62859)3. Digital multimeter4. Lamp holder E-27/40 W (Alto no. 302000764)5. Lamp holder E-27/40 W (Alto no. 302000765)6. Test device (Alto no. 40434)7. Adjustment mask (Alto no. 62480)
54
3
2
1
Attix7 3677
7
6
Attix7 3678
Tools
To
ols
47/59
HNilfisk ALTO
Attix7_ver.1.0_140105
A1
Ele
tro
ni
so
fst
art
cc
t o
tor
rbin
eM
1M
tu
X1
Po
er
lie
wn
X2
Term
na
str
ip 6
-a
yi
lw
Z1
An
ti-st
atic
cipl
1 Wiring diagram of Attix 751-01
NL1
M1~
+
~~
=
MC
A1
M1
Mot
or
Mot
or
+
1 33a1a
Z1
X1
X2
Wiring
ig
Wrin
48/59
HNilfisk ALTO
Attix7_ver.1.0_140105
2 Wiring diagram of Attix 751-11, Attix 19 Gallon
Ele
cto
nf s
trt
A1
ric
so
ta
M1
Mo
ru
rin
eto
tb
W1
inle
-re
la
Sg
co e
dS
ing
-co
e
ad
W2
ler
leX
1P
we
rli
eo
n
X3
cke
Sto
t1
An
sttic
clip
Zti-
a
M1~
M1
NL1
A11 3
3a1a+
~~
=
MC
Mot
or
+
X3Z1
W2
W1
X1
Mot
or
Wiring
ig
Wrin
49/59
HNilfisk ALTO
Attix7_ver.1.0_140105
3 Wiring diagram of Attix 751-21
A1
lctr
nc
sof s
tart
Ee
oi
tM
1M
to t
rin
eo
ru
bX
1o
we
lin
eP
r3
Sck
et
Xo
Z1
An
-sta
tic c
liti
p
1a1
X1
A1
Mot
or
+
+
LN
33a
+
~~
=MC
Q1
Air
Z1
X3
M11~M
Wiring
ig
Wrin
50/59
HNilfisk ALTO
Attix7_ver.1.0_140105
4 Wiring diagram of Attix 751-2M
AE
lctr
on
ic f
ow
me
terin
g1
el
2F
o s
eso
Al
wn
rA
3
Po
ten
tioe
ter
mH
1B
uz
er
z1
Mo
o tu
rbin
eM
tr
X1
Po
wr
lie
en
XS
oc
et
3k
1A
nti-
sta
tic c
lpZ
i
1a1
X1
+
LN
33a
+
~~
=
Q1
A1
Mot
or+
1
2
3
1
2
3
1
2
3
1
MC
Air
A3
A2Flow-Sensor
Tube
H1
+
X6
X5
X4
X2
X3
X8
X1
X3
Z1
M11~M
Wiring
ig
Wrin
51/59
HNilfisk ALTO
Attix7_ver.1.0_140105
5 Wiring diagram of Attix 751-0H
A1
Ele
ctro
nic
flo
w m
ete
rin
gA
2F
low
se
nso
rH
1B
uzze
rM
1M
oto
r tu
rbin
eX
1P
ow
er
line
X2
Term
ina
l str
ip 6
-wa
yZ
1A
nti-s
tatic
clip
1a1
X1
LN
33a
+
~~
=
Q1
A1
Mot
or
1
2
3
1
2
3
1
2
3
1
MC
A2Flow-Sensor
X2 Z1
H1
+
X1
X8
X5
X6
X4
M11~M
Wiring
ig
Wrin
52/59
HNilfisk ALTO
Attix7_ver.1.0_140105
6 Wiring diagram of Attix 761-21XC, Attix 763-21ED
1E
er
nc
ntco
to
Al
cto
im
ag
e
nr
l1
Mt
ru
bn
Mo
o t
ri
eS
nl
-r
eW
1i
ge
coe
la
di
l-
r e
dW
2S
ng
eco
el
aX
oe
i
e1
Pw
rl n
Xr
a
i
-a
2Te
min
l str
p6
wy
Xo
t3
Sck
e1
/Ye
od
Y2
So
ln
iA
t -a
icl p
Z1
nist
t c
i
1a1+
+
+
~~
=MC X3
F1
X7 X9
Magnet AMagnet B
ge
ge
rt
Air
P2
9mba
r
Pre
ssur
e
Com
pens
atio
n
Res
ervo
ir
Z1
X1
X2
Mot
or
3a3
W2
Y2 Y1
M11~M
W1
Baf
fle p
ipe
A1LNX3X2X1
AS
Wiring
ig
Wrin
53/59
HNilfisk ALTO
Attix7_ver.1.0_140105
7 Wiring diagram of Attix 761-2MXC, Attix 763-2MED
1A
Ele
ctr
on
ic flo
w m
ete
rin
gA
2F
low
se
nso
rA
3P
ote
ntio
me
ter
H1
Bu
zze
rM
1M
oto
r tu
rbin
eW
-l
1S
ing
leco
re e
ad
W2
Sin
gle
-co
re le
ad
iX
1P
ow
er
l ne
aX
2Te
rmin
l str
ipS
X3
ocke
tY
1/Y
2S
ole
no
idZ
1A
nti-s
tatic c
lip
1a1
P2
9mba
rP
ress
ure
Com
pens
atio
n
Res
ervo
ir
Baf
fle p
ipe
A1
Air
1
2
3
X6
X5
1
2
3
X10
+
1
2
3
X4
1
2
3
X3
X9
+
A2 Sensor
Tube
H1
gn
rt
A3
Magnet B Magnet A
X1
Mot
or
MC
ge
rt
ge
X11
Y2
X12
Y1
X1
+
L
+
~~
=
3a3
R32
M11~M
W1
X2
X3
Z1
ASN
W2
Wiring
ig
Wrin
54/59
HNilfisk ALTO
Attix7_ver.1.0_140105
12 Wiring diagram of Attix 19 Gallon AS/PE 2
AE
lec
roi
a
gn
et
on
tro
l1
tn
cm
cB
1lo
w m
on
tor
Fi
1M
tor
ur
ie
Mo
tb
nW
1S
ig
le-c
o e
dn
rel
aW
2S
ing
l-c
oe
ea
de
rl
X1
Pw
er
line
oX
Tem
nls
rip
6-w
ay
2r
ia
t
XS
ock
e3
tY
1/Y
2o
eo
idS
ln
1A
nti-
tatic
cip
Zs
l
1a1+
+
LN
+
~~
=MC
A1
F1
X7 X9
Magnet AMagnet B
ge
ge
rt
X2 AirX3
P2
9mba
r
Dru
ck-
ausg
leic
h
Beh
aelte
r
Q
B1
X1
Mot
or
3a3
Y2 Y1
M11~M
X3
W1
Z1
Stau
rohr
X2
W2
X1
Wiring
ig
Wrin
55/59
HNilfisk ALTO
Attix7_ver.1.0_140105
8 Wiring diagram of Attix 791-21
A1
Ee
ct
nic
sft
sta
rt
Cl
roo
E
2E
lc
roic
C
Ae
tn
EC
1R
sp
pr
si
n c
pa
co
FI
ue
so
ait
rM
1to
u
rin
eE
Mo
rt
b
C1
Pw
er
line
Xo
XTe
rmin
l tr
ip2
as
X3
ocke
tS
ZA
nt-s
tatc
clip
1i
i
1a1
A1
+
+
Air LN
M1M
1
PE
C1
MC
33a
+
~~
=
Q1
1
6
16
X72
Z1
X1
X2
X2
A2
X5
1
X3
Wiring
ig
Wrin
56/59
HNilfisk ALTO
Attix7_ver.1.0_140105
9 Wiring diagram of Attix 791-2M/B1
li
fle
nA
1E
ect
ron
c o
w m
teri
gw
sA
2F
lo s
en
or
Po
tm
rA
3te
nio
ete
El
iA
42
ectr
on
c E
C1
RF
Ip
si
ca
C s
up
res
on
a
pci
tor
1B
uH
zze
r M
or
i
M1
ot
r tu
bn
eE
CP
oe
iX
1w
r ln
eT
at
X2
erm
inl s
rip
So
X3
cke
tA
ni
pZ
1ti-s
tatc c
li
1a1
+
~~
=
+
1
2
3
1
3
Air
A3
A2 FlowSensor
Tube
H1
+
X3
X2
X4
X5
X8
LN
A1
M1
PE
X8
X7
2
3
C1
+
33a
1
X1
A4
M1
X1
Z1
X3
X2
2
3
1
MC2
X7
Operating data
Wiring
ig
Wrin
57/59
HNilfisk ALTO
Attix7_ver.1.0_140105
10 Wiring diagram of Attix 751-61, Attix 19 Gallon AE
rc
of
A1
Ele
cto
ni
stst
art
MM
or
tb
i1
ot
u
rn
eP
um
M2
pw
er
lX
1P
o i
ne
m
6-
yX
2Te
rin
al s
trip
w
ae
X3
So
ck
tZ
1A
-a
tcl
nti
stic
ip
P2
Pre
ssur
e
com
pens
atio
n
Res
ervo
ir
Baf
fle p
ipe
+
N
+
~~
=
A1
rt
X1
Mot
or
3a3
X2
L Z1
X3
M1~M1
MC
ge
M
Pumpe
M2
X1
Pre
ssur
e
Sen
sor
Wiring
ig
Wrin
58/59
HNilfisk ALTO
Attix7_ver.1.0_140105
11 Wiring diagram of Attix 751-71
Al
cr
nc
sf s
tr
1E
et
oi
o
ta
tM
1t
rtu
rbin
Mo
o
eM
2m
pP
uS
1P
RC
D1
Pw
e
nX
or
lie
2T
rn
li
6-
aX
em
ia
str
pw
yS
ok
tX
3c
en
i-ta
cc
ipZ
1A
ts
ti
l
P2
Pre
ssur
e
Com
pens
atio
nR
eser
voir
Baf
fle p
ipe
+
N
+
~~
=
A1
rt
X1
Mot
or
3a3
X2
L Z1
X3
M1~M1
MC
ge
M
Pumpe
M2
S1
X1
PRCD
3-pole
Pre
ssur
e
Sen
sor
Wiring
ig
Wrin
59/59