Kärcher NT 45/1 Tact User manual

English 5.906-498.0 Rev. 00 (09/09) 1
NT 45/1 Tact Te Ec
Service Manual

2 English 5.906-498.0 Rev. 00 (09/09)
Contents
1 Preface 3
2 Safety instructions 3
3 Technical Features 3
4 Parts of the system 4
5 Basic settings and service procedures 5
6 Maintenance and care 11
7 Troubleshooting 11
8 Technical specifications 12
9 Circuit diagram 13

English 5.906-498.0 Rev. 00 (09/09) 3
Good service work requires extensive and practice-oriented train-
ing as well as well-structured training materials.
Hence we offer regular basic and advanced training programmes
covering the entire product range for all service engineers.
In addition to this, we also prepare service manuals for important
appliances - these can be initially used as instruction guides and
later on as reference guides.
Apart from this, we also regular information about product en-
hancements and their servicing.
If you should require supplements, have corrections or questions
regarding this document, please address these citing the following
subject to:
[email protected]
The responsible product specialist will take care of your issue.
Copying and duplication of texts and diagrams as well as
third-party access to this information is permitted only with
the explicit permission of the company:
Alfred Kärcher GmbH & Co. KG
P O Box 160
D -71349 Winnenden
www.kaercher.com
Danger
Immediate danger that can cause severe injury or even death.
몇Warning
Possible hazardous situation that could lead to severe injury or
even death.
Caution
Possible hazardous situation that could lead to mild injury to per-
sons or damage to property.
Structure:
– Brushless electric motor allows a long product life.
– Automatic filter dedusting
– Socket
– Stepless regulation of the suction force.
– Cable hooks for suction hose cable coiling system.
– Suction hose connection with bayonet system.
– Holder for floor nozzle, suction pipes and crevice nozzle.
– In addition to the main filter, a filter bag may be used.
1 Preface
Subject: Fall 109891
2 Safety instructions
2.1 Hazard levels
3 Technical Features

4 English 5.906-498.0 Rev. 00 (09/09)
1Electrodes
2 Suction hose
3 Cable hook
4 Air outlet, working air
5 Suction head lock
6Impeller
7 Air inlet, motor cooling air
8 Dirt receptacle
9 Steering roller bow
10 Suction head
11 Steering roller
12 Suction support
13 Floor nozzle
14 Suction pipe
15 Carrying handle
16 Filter cover
17 Bender
18 Rotary switch for suction output (min-max)
19 Indicator lamp
20 Socket
21 Automatic filter dedusting
22 Main switch
23 Flat fold filter
24 Filter dedusting
4 Parts of the system
24
23
18
19
20
21
22
28
27
27
26
25
1
2
315 16
4
5
6
78910111213
14
17
29

English 5.906-498.0 Rev. 00 (09/09) 5
25 Floor nozzle holder
26 Holder for floor nozzle
27 Holder for suction pipes
28 Power cord
29 Nameplate
Danger
First pull out the plug from the mains before carrying out any tasks
on the machine.
1 Grounding contact
2 Left electrode
3 Rubber foam string
4 Filter casing
5Powercord
6 Flat fold filter
7 Right electrode
Replace the moss rubber string, grounding contact if neces-
sary.
1 Fastening screws for hood
2 Carrying handle
3 Fastening screws for the cover of the filter lid
4 hood
5 Cover of the filter lid
Unscrew the fastening screws for the hood.
Remove the carrying handle.
Remove the hood.
Unscrew the fastening screws for the cover of the filter lid.
Remove the cover of the filter lid
5 Basic settings and service procedures
5.1 Suction head (view from below)
1765
2
4 3
5.2 Suction head (view from above)
1233
4
3
1
53 1
11

6 English 5.906-498.0 Rev. 00 (09/09)
1 Electric solenoid
2 Solenoid plate
3 Spring, hard
4Oring
5 Support
6 Filter cover
7 Spring, soft
8 Valve disks
9 Magnet-holder
1hood
2 Connecting cable for electric solenoid
3 Electric solenoid
4 Fastening screw for solenoid holder
5 Filter cover
6 Cover of the filter lid
7 Magnet-holder
8 Solenoid plate
Disconnect connecting cable for electric solenoid.
1 Filter casing
2 Control chip
3 Main switch
4 Switch for filter shake off system
5 Turbine circuit board
6 Connecting cable for electric solenoid
7 Insulating mat
8 Button, switch for filter shake off system
9 Button, main switch
10 hood
11 Filter dedusting
12 Power cord
13 Air input
14 Flat fold filter
Disconnect the connecting cable for the electric solenoid from
the circuit board.
Pull out the connecting cable.
Replace the connecting cable.
Note: In order to avoid excessive pull on the connecting cable, the
installation of the connecting cable must take place with the filter
lid open.
1 Connecting cable for electric solenoid
5.3 Filter dedusting
5.4 Replace connecting cable for electrodes
1
2
3
4
5
9
6
8
7
187
326 4
44
5
2
11
3
8 5
1
4679
12 1413
10
1

English 5.906-498.0 Rev. 00 (09/09) 7
Insertanewconnectingcable and connectittothecircuitboard
andtheelectricsolenoid.Routethecablesas shown in drawing
(dotted line box).
1 Instrument panel
2hood
Note: Duringthe installation ofthehood, make surethattheguides
of the hood (see arrows) and the instrument panels engage each
other.
Note: Surface A of the hood and surface B of the turbine housing
must touch each other once installed.
Install the hood.
Pull the circuit board out toward the top.
Disconnect all connecting cables from the circuit board.
Replace the circuit board.
Connect the new circuit board as per the circuit diagram.
Unscrew the fastening screws for the turbine circuit board.
1Fuse
2 Connecting cable to the control circuit board (X61)
3 Connecting cable to the control circuit board (X62)
4 Flat cable to the control dial (X72)
5 Flat cable to the suction turbine
6 Suction turbine
7 Connection to suction turbine, red (X51)
8 Connection to suction turbine, black (X52)
9 Turbine circuit board
Disconnect all connecting cables from the turbine circuit board.
Replace turbine circuit board.
Connect the new turbine circuit board as per the circuit dia-
gram.
Replace the fuse (10 A) if necessary.
5.5 Install the suction head hood
5.6 Replace the circuit board
2 1
A
B
X19,X14,X20,X15
X7,X6,X2,X1
X3,X4,X5X16 X13
X12,X11
X9,
X10
X7,X2 Turbine circuit board
X6,X1 Anti-interference filter
X3,X4,X5 Filter dedusting
X13 Switch for filter shake off system
X16 Micro switch
X9,X10 Electrodes
X14,X15 Socket
X19,X20 Main switch
X12,X11 Indicator lamp
5.7 Replace turbine circuit board
5.8 Replace the fuse on the turbine circuit board
34
1
5
876
2
9

8 English 5.906-498.0 Rev. 00 (09/09)
1 Terminal strip X2
2 Control chip
3 Ground cable (protective conductor)
4 Neutral conductor
5Phase
6Powercord
7 Main switch
Disconnect the ground cable (protective conductor) on the ter-
minal strip X2.
Disconnect the phase and the neutral connector on the main
switch.
1 Turbine casing
2 Cable guide
3 Ferrit ring (anti-interference ring)
4 Clamp for mains cable
5Powercord
6 Filter casing
7 Mains cable grommet
Remove the clamp for mains cable.
Remove the mains cable from the cable guide.
Remove the ferrit ring (anti-interference ring).
Thread the mains cable through the grommet.
Install the new mains cable in reverse sequence.
1 Electrode cable, left
2 Terminal strip X3
3 Ground cable to filter casing
4 Terminal strip X2
5 Control chip
6 Instrument panel
7 Electrode cable, right
8 Fastening screw for interference filter
9 Anti-interference filter
10 Main switch
11 Switch for filter shake off system
12 Ground cable of the suction turbine
Remove the fastening screw for the interference filter.
Remove the interference filter and disconnect it.
Replace the interference filter.
Connect the new interference filter as per the circuit diagram.
Remove the main switch or the switch for the filter shake off
system and disconnect it.
Replace the main switch or the switch for the filter shake off
system.
Connect the new main switch or the new switch for the filter
shake off system as per the circuit diagram.
5.9 Replacing the mains cable
2
5
7
1
6
43
135 47 26
5.10 Replace the interference filter
5.11 Replace the main switch and the switch for the
filter shake off system
5
2
10 11 17
4
8 12
6
3
9

English 5.906-498.0 Rev. 00 (09/09) 9
1 Indicator lamp
2 Rotary switch for suction output (min-max)
3 Micro switch
4 Instrument panel
5 Socket
Replace the control lamp, the socket, the micro switch and the
control dial if necessary
1 Fastening screws for turbine housing
2 Turbine circuit board
3 Turbine casing
4 Suction turbine
Pull the connection plug off the turbine.
Unscrew the fastening screws for the turbine casing.
1 Upper turbine seal
2Powercord
3 Electrode cable, right
4 Suction turbine
5 Filter casing
6 Electrode cable, left
7 Insulating mat
8 Ground cable of the suction turbine
9 Turbine casing
Remove the turbine casing.
1 Medium turbine seal
2 Adapter plate
3 Filter casing
4 Ground cable of the suction turbine
5 Suction turbine
Unscrew the ground cable of the suction turbine.
Remove the medium turbine seal.
Remove the suction turbine.
Place the medium turbine seal onto the new suction turbine.
Note: Make sure that the adapter plate is placed properly.
5.12 Replace the control lamp, the socket, the micro
switch and the control dial.
5.13 Replacing the suction turbine
2
1
3
5 4
2
1
1
43
2
5
3
678 9
4
1
23
4 5 1

10 English 5.906-498.0 Rev. 00 (09/09)
1 Filter casing
2 Suction turbine
Place the new suction turbine on the adapter plate and align it
as per the drawing (dotted line).
Screw on the ground cable.
Install the turbine casing in the reverse sequence.
Connect the connection plug of the turbine.
1 Left electrode
2 Electrode cable, left
3 Electrode cable, right
4 Right electrode
Disconnect the connecting cables from the circuit board and
the electrodes.
Replace damaged connecting cables.
Replace the electrodes.
Install new connecting cables in reverse sequence.
5.14 Replace the electrodes
2
1
3
2
1
4