TECHNICAL INFORMATION S 2xx, S 3xx and S 4xx Canister

TECHNICAL INFORMATION
S 2xx, S 3xx and S 4xx Canister Vacuums
© 2012 Miele USA
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Table of Contents
1.0 1.1 1.2 1.1 1.2 1.3 1.4 1.5 4.0 4.1 4.2 4.3 4.4 5.0 5.1 5.2 5.3 5.4 Construction and Design .................................................................................... 7 General Information .............................................................................................. 7 Cleaning and Care ................................................................................................ 7 1.2.1 Vacuums and Accessories ..................................................................................... 7 1.2.2 Dust Compartment ................................................................................................. 7 Type/Construction ............................................................................................... 12 1.1.1 S 3xx Components ............................................................................................... 12 1.1.2 S 4xx Components ............................................................................................... 14 Features .............................................................................................................. 15 Technical Data .................................................................................................... 18 1.3.1 S 247i - S 256i ...................................................................................................... 18 1.3.2 S 269i - S 282i ...................................................................................................... 18 1.3.3 S 3xx .................................................................................................................... 19 1.3.4 S 4xx .................................................................................................................... 19 Accessories ........................................................................................................ 20 1.4.1 Standard Accessories .......................................................................................... 20 1.4.2 Optional Accessories ........................................................................................... 20 1.4.3 Accessories with New Locking System (S 2xx Only) ........................................... 20 Electrobrush Plug System (S 3xx and S 4xx Only) ............................................. 21 Description of Function .................................................................................... 21 Air Clean Plus Filter System ............................................................................... 21 4.1.1 Super Air Clean Filter ........................................................................................... 21 4.1.2 Active Air Clean Filter........................................................................................... 22 4.1.3 S-Class Filter ........................................................................................................ 22 Dustbag Change Indicator .................................................................................. 22 4.2.1 S 27x .................................................................................................................... 22 4.2.2 S 3xx .................................................................................................................... 23 4.2.3 S 4xx .................................................................................................................... 24 Suction Power ..................................................................................................... 24 Power Regulation ............................................................................................... 25 4.4.1 Models with Manual Power Selection .................................................................. 25 4.4.2 Automatic Models ................................................................................................. 25 4.4.3 Booster Setting ..................................................................................................... 26 4.4.4 Phase-Chopping Control - Principle of Operation ................................................ 27 Service and Maintenance .................................................................................. 27 Dustbag Compartment Lid (and Hinges, if Applicable) ....................................... 28 5.1.1 S 25x .................................................................................................................... 28 5.1.2 S 27x .................................................................................................................... 28 5.1.3 S 3xx .................................................................................................................... 28 5.1.4 S 4xx .................................................................................................................... 28 Accessory Compartment Lid ............................................................................... 29 5.2.1 Reassembly (S 2xx Only)..................................................................................... 29 Dustbag Holder ................................................................................................... 29 5.3.1 S 25x .................................................................................................................... 29 5.3.2 S 27x .................................................................................................................... 29 5.3.3 S 3xx .................................................................................................................... 30 5.3.4 S 4xx .................................................................................................................... 30 Dust Channel ...................................................................................................... 31 5.4.1 S 25x .................................................................................................................... 31 2
S 2xx, S 3xx & S 4xx Canister Vacuums
5.5 5.4.2 5.4.3 Technical Information
S 27x .................................................................................................................... 31 S 3xx and S 4xx ................................................................................................... 31 Dustbag Change Indicator .................................................................................. 31 5.5.1 S 25x .................................................................................................................... 31 5.5.2 S 27x .................................................................................................................... 31 5.5.3 S 3xx .................................................................................................................... 32 5.5.4 S 4xx .................................................................................................................... 32 5.6 Cap Assembly ..................................................................................................... 32 5.6.1 S 25x .................................................................................................................... 32 5.6.2 S 27x .................................................................................................................... 32 5.6.3 S 3xx .................................................................................................................... 33 5.6.4 S 4xx .................................................................................................................... 33 5.7 Rear Casing ........................................................................................................ 34 5.7.1 S 25x .................................................................................................................... 34 5.7.2 S 27x .................................................................................................................... 34 5.7.3 S 3xx .................................................................................................................... 34 5.7.4 S 4xx .................................................................................................................... 35 5.8 Foot Switches ..................................................................................................... 36 5.8.1 S 25x and S 27x ................................................................................................... 36 5.8.2 S 3xx .................................................................................................................... 36 5.8.3 S 4xx .................................................................................................................... 36 5.9 Potentiometer/Suction Power Selector ............................................................... 37 5.9.1 S 2xx .................................................................................................................... 37 5.9.2 S 3xx .................................................................................................................... 38 5.9.3 S 4xx .................................................................................................................... 40 5.10 Electronic (S 4xx Only) ....................................................................................... 42 5.11 Fault/Overheat Indicator Lamp ........................................................................... 43 5.11.1 S 2xx .................................................................................................................... 43 5.11.2 S 4xx .................................................................................................................... 43 5.12 Plug Housing ...................................................................................................... 43 5.12.1 S 25x .................................................................................................................... 43 5.12.2 S 27x .................................................................................................................... 44 5.13 On/Off Switch ...................................................................................................... 44 5.13.1 S 25x .................................................................................................................... 44 5.13.2 S 27x .................................................................................................................... 44 5.13.3 S 3xx .................................................................................................................... 44 5.14 Flush Socket Outlet ............................................................................................ 44 5.14.1 S 25x .................................................................................................................... 44 5.14.2 S 27x .................................................................................................................... 44 5.15 Sensor (Automatic Models S 280i - S 282i) ........................................................ 45 5.16 Cord Reel ............................................................................................................ 45 5.16.1 S 23x .................................................................................................................... 45 5.16.2 S 25x .................................................................................................................... 45 5.16.3 S 27x .................................................................................................................... 46 5.16.4 S 3xx .................................................................................................................... 46 5.16.5 S 4xx .................................................................................................................... 46 5.17 Power Cord ......................................................................................................... 47 5.17.1 S 27x .................................................................................................................... 47 5.17.2 S 3xx .................................................................................................................... 47 5.18 Motor Assembly .................................................................................................. 48 5.18.1 S 25x .................................................................................................................... 48 5.18.2 S 27x .................................................................................................................... 49 5.18.3 S 3xx .................................................................................................................... 50 5.18.4 S 4xx .................................................................................................................... 50 3
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
5.19 5.20 5.21 5.22 5.23 5.24 5.25 6.0 6.1 6.2 6.3 6.5 6.6 6.7 6.8 Motor Electronic (Speed Control Board) ............................................................. 51 5.19.1 S 3xx .................................................................................................................... 51 5.19.2 S 4xx .................................................................................................................... 51 Motor Brushes .................................................................................................... 51 5.20.1 S 3xx .................................................................................................................... 51 5.20.2 S 4xx .................................................................................................................... 51 Electric Brush Socket (S 254i and S 255i Only) ................................................. 52 Suction Hose with Integrated Wiring (S 2xx Only) .............................................. 52 5.22.1 S 254i and S 255i ................................................................................................. 52 5.22.2 S 270i - S 276i, S 280i ......................................................................................... 52 5.22.3 S 278i ................................................................................................................... 53 Turbo Brush (S 2xx Only) ................................................................................... 53 Buffer/Bumper Strip (S 3xx and S 4xx Only) ...................................................... 54 5.24.1 S 3xx .................................................................................................................... 54 5.24.2 S 4xx .................................................................................................................... 55 Grill for HEPA Filter (S 3xx Only) ........................................................................ 55 Fault Diagnosis .................................................................................................. 56 Improved Castor (S 2xx Only) ............................................................................ 56 Dirty Dustbag Compartment (S 27x and S 28x Only) ......................................... 56 6.2.1 Dustbags, Old and New Versions ........................................................................ 56 6.2.2 Modified Dustbag Holder...................................................................................... 57 Poor Suction Performance (S 27x and S 28x) .................................................... 58 Poor Blower Performance (S 27x and S 28x) ..................................................... 59 Dustbag Change Indicator (S 3xx) ...................................................................... 59 Suction Power (S 3xx) ........................................................................................ 60 Motor Does Not Operate (S 345i and S 445i) ..................................................... 60 List of Figures
Figure 1-1: S 247i, S 248i ................................................................................................... 8 Figure 1-2: S 249i, S 250i ................................................................................................... 8 Figure 1-3: S 251i, S 252i ................................................................................................... 8 Figure 1-4: S 254i ............................................................................................................... 8 Figure 1-5: S 255i, S 256i ................................................................................................... 8 Figure 1-6: S 234i ............................................................................................................... 9 Figure 1-7: S 269i, S 270i ................................................................................................... 9 Figure 1-8: S 271i, S 272i ................................................................................................... 9 Figure 1-9: S 274i ............................................................................................................... 9 Figure 1-10: S 275i, S 276i ................................................................................................. 9 Figure 1-11: S 278i ............................................................................................................. 9 Figure 1-12: S 280i, S 282i ............................................................................................... 10 Figure 1-13: S 300i, S 301i ............................................................................................... 10 Figure 1-14: S 310i, S 313i ............................................................................................... 10 Figure 1-15: S 321i, S 324i, S326i .................................................................................... 10 Figure 1-16: S 334i, S 336i, S 338i ................................................................................... 10 Figure 1-17: S 342i ........................................................................................................... 11 Figure 1-18: S 344i ........................................................................................................... 11 Figure 1-19: S 346i, S 347i, S 348i ................................................................................... 11 Figure 1-20: S 400i, S 401i, S 402i, S 408i ...................................................................... 11 Figure 1-21: S 410i ........................................................................................................... 11 4
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 1-22: S 421i, S 422i, S 424i, S 426i ...................................................................... 11 Figure 1-23: S 434i, S 436i, S 438i ................................................................................... 12 Figure 1-24: S 442i ........................................................................................................... 12 Figure 1-25: S 444i ........................................................................................................... 12 Figure 1-26: S 446i, S 447i, S 448i ................................................................................... 12 Figure 1-27: S 3xx Components ....................................................................................... 13 Figure 1-28: S 4xx Components ....................................................................................... 14 Figure 1-29: 9.3cm Adapter Sleeve to Connect New and Old Accessories ..................... 20 Figure 1-30: 9.3cm Swivel Adapter Sleeve to Connect the Locking Electric Brush.......... 20 Figure 1-31: 20cm Swivel Adapter Sleeve to Connect Lockable Accessories ................. 21 Figure 4-1: S 3xx Dustbag Change Indicator ................................................................... 23 Figure 4-2: S 4xx Dustbag Change Indicator ................................................................... 24 Figure 4-3: Suction Power Curve ..................................................................................... 24 Figure 4-4: Phase-Chopping Control ................................................................................ 27 Figure 5-1: Dustbag Compartment Lid, S 4xx .................................................................. 28 Figure 5-2: Accessory Compartment Lid, Hinges and Springs (S 2xx Shown) ................ 29 Figure 5-3: Dustbag Holder, S 25x ................................................................................... 29 Figure 5-4: Dustbag Holder, S 27x ................................................................................... 30 Figure 5-5: Dustbag Holder, S 3xx ................................................................................... 30 Figure 5-6: S 3xx and S 4xx Dust Channel ...................................................................... 31 Figure 5-7: S 25x Cap Assembly ...................................................................................... 32 Figure 5-8: S 27x Rear Casing ......................................................................................... 33 Figure 5-9: Cap Assembly, S 4xx ..................................................................................... 33 Figure 5-10: Rear Casing, S 25x ...................................................................................... 34 Figure 5-11: Rear Casing, S 27x ...................................................................................... 34 Figure 5-12: Rear Casing, S 3xx ...................................................................................... 35 Figure 5-13: Rear Casing, S 4xx ...................................................................................... 35 Figure 5-14: Foot Switches, S 25x and S 27x .................................................................. 36 Figure 5-15: Foot Switch, S 3xx ....................................................................................... 36 Figure 5-16: Foot Switch, S 4xx ....................................................................................... 37 Figure 5-17: Potentiometer Cover, S 2x4i and S 2x5i ...................................................... 38 Figure 5-18: Catches on Potentiometer Control, S 2x4i and S 2x5i ................................. 38 Figure 5-19: Potentiometer Control, S 2x4i and S 2x5i .................................................... 38 Figure 5-20: Rotary Potentiometer, S 3xx ........................................................................ 39 Figure 5-21: Slide Potentiometer, S 3xx ........................................................................... 39 Figure 5-22: +/- Buttons, S 3xx ......................................................................................... 40 Figure 5-23: Electronic +/- Buttons, S 3xx ........................................................................ 40 Figure 5-24: S 4xx Slide Potentiometer ............................................................................ 41 Figure 5-25: Foot-Operated Power Selector, S 4xx ......................................................... 42 Figure 5-26: S 4xx Electronic Removal ............................................................................ 43 Figure 5-27: S 27x Plug Housing ...................................................................................... 44 Figure 5-28: Sensor Removal for Models S 280i - S 282i ................................................ 45 Figure 5-29: Cap Assembly with Lug, S 25x Models ........................................................ 46 Figure 5-30: Brake Lever Top Edge, S 25x Models ......................................................... 46 Figure 5-31: S 27x Power Cord Removal ......................................................................... 47 Figure 5-32: S 3xx Power Cord Removal ......................................................................... 47 Figure 5-33: S 25x Motor Assembly ................................................................................. 48 Figure 5-34: S 27x Motor Assembly ................................................................................. 49 Figure 5-35: S 4xx Motor with Holding Bracket ................................................................ 50 Figure 5-36: S 4xx Motor with Central Bearing ................................................................. 51 5
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 5-37: S 254i and S 255i Suction Hose with Integrated Wiring ............................... 52 Figure 5-38: S 270i - S 276i, S 280i Suction Hose with Integrated Wiring ....................... 53 Figure 5-39: S 278i Suction Hose with Integrated Wiring ................................................. 53 Figure 5-40: S 2xx Turbo Brush ....................................................................................... 54 Figure 6-1: Modified Castor, S 2xx ................................................................................... 56 Figure 6-2: Dustbag with Raised Rim on Collar, S 27x and S 28x ................................... 57 Figure 6-3: Dustbag without Raised Rim on Collar, S 27x and S 28x .............................. 57 Figure 6-4: Modified Dustbag Holder, S 27x and S 28x ................................................... 58 Figure 6-5: S 27x and S 28x Motor Seal and Holder ........................................................ 58 Figure 6-6: Blower Plate for S 27x and S 28x .................................................................. 59 Figure 6-7: S 3xx Dustbag Change Indicator ................................................................... 60 6
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
1.0
Construction and Design
1.1
General Information
ƒ
All repairs should be performed by a trained technician in strict accordance
with national, state and local codes. Any repairs or maintenance performed
by unqualified personnel could be dangerous.
ƒ
When servicing, modifying, testing or maintaining appliances, all applicable
laws, regulations and accident prevention guidelines must be observed.
ƒ
All regulations of the appropriate utility supply companies and standards
relating to safety (not limited to electrical safety) are to be complied with.
ƒ
Before any service work is started, the vacuum cleaner must be
disconnected from the power supply.
ƒ
Even with the vacuum switched off, supply voltage may be applied to
some components.
ƒ
Do not leave the vacuum unattended when it is plugged in. Turn off and
unplug the vacuum before opening the cover.
ƒ
After work has been completed, a visual as well as an operational check
should always be performed.
1.2
Cleaning and Care
1.2.1
Vacuums and Accessories
The vacuum cleaner and other plastic components can be cleaned using a
damp cloth or a cleaner made especially for plastics.
Warning!
Do not use abrasive, glass or all-purpose cleaning solutions, as these can
cause considerable damage to the plastic components of the vacuum or its
accessories.
1.2.2
Dust Compartment
The dust compartment can be cleaned using another vacuum, if available, or a
dry cloth or brush.
Monitor the bag change indicator and inspect all filters regularly. Replace them
when necessary according to the maintenance instructions.
7
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 1-1: S 247i, S 248i
Figure 1-2: S 249i, S 250i
Figure 1-3: S 251i, S 252i
Figure 1-4: S 254i
Figure 1-5: S 255i, S 256i
8
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 1-6: S 234i
Figure 1-7: S 269i, S 270i
Figure 1-8: S 271i, S 272i
Figure 1-9: S 274i
Figure 1-10: S 275i, S 276i
Figure 1-11: S 278i
9
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 1-12: S 280i, S 282i
Figure 1-13: S 300i, S 301i
Figure 1-14: S 310i, S 313i
Figure 1-15: S 321i, S 324i, S326i
Figure 1-16: S 334i, S 336i, S 338i
10
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 1-17: S 342i
Figure 1-18: S 344i
Figure 1-19: S 346i, S 347i, S 348i
Figure 1-20: S 400i, S 401i, S 402i, S 408i
Figure 1-21: S 410i
Figure 1-22: S 421i, S 422i, S 424i, S 426i
11
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 1-23: S 434i, S 436i, S 438i
Figure 1-24: S 442i
Figure 1-25: S 444i
Figure 1-26: S 446i, S 447i, S 448i
1.1
Type/Construction
Canister vacuum cleaner.
1.1.1
S 3xx Components
12
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 1-27: S 3xx Components
These vacuum cleaners consist of 4 main parts:
1) Switch unit
− Suction power selector or electronic, depending on model
− “On/Off” switch
− Overheating warning light, depending on model
− Group plug
2) Rear casing
− Filter system
− Cable rewind
− Motor
− Park System switch
− Plug connectors
3) Dustbag compartment casing
− Accessory compartment with lid
− Suction hose connection with shutter
− Dustbag change indicator
− Accessories
− Hinges
− Slip-ring system for electrobrush, S 324i and S 346i only
4) Casing base
− Motor protection filter
− Dustbag holder
− Bumper strip
− Storage slot (for floor attachment)
− Electrobrush socket, depending on model
− 3 castors
13
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
1.1.2
S 4xx Components
Figure 1-28: S 4xx Components
1) Integrated in rear casing
− Foot switch unit
− Suction power selector on top
− Cable rewind
− Motor
2) Integrated in dustbag compartment casing
− Accessory compartment with lid
− Dustbag change indicator
− Suction hose connection
With Automatic models
− Connection stub for negative pressure hose
3) Integrated in housing base
− Motor protection (matted filter)
− Dustbag holder
− Bumper strip
− Electrobrush socket (depending on model)
With Automatic models
− Negative pressure switch
14
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
1.2
Features
Model
S 247i, S 248i S 249i, S 250i S 251i, S 252i S 254i
S 255i, S 256i
Dustbag
change
indicator
x
x
x
x
x
Automatic cord
x
rewind
x
x
x
x
x
x
Electric brush
socket
Overheating
indicator
x
x
Suction power selection
Rotary knob
x
Foot switch
x
x
Model
S 269i, S 270i
S 271i, S 272i
S 274i
S 275i, S 276i
S 278i
S 280i, S 282i
Dustbag
change
indicator
x
x
x
x
x
x
Automatic cord
x
rewind
x
x
x
x
x
x
x
x
x
x
x
x
Electric brush
socket
Overheating
indicator
Suction power selection
Rotary knob
x
Foot switch
x
x
x
Handle of
wired suction
hose
x
Automatic
x
Model
S 300i
S 301i
S 310i
S 313i
S 321i
S 324i
S 326i
Suction power
regulation via
air inlet valve
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Rotary switch
Slide switch
Telescopic
suction tube
x
Universal floor
SBD 304
attachment
SBD 404
SBD 304
SBD 304
SBD 304
SBD 304 SBD 304
Super Air
Clean filter
x
x
x
x
x
x
o
Active Air
Clean filter
o
o
o
o
o
o
x
15
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Model
S 300i
S 301i
S 310i
S 313i
S 321i
S 324i
S 326i
S-Class filter
o
o
o
o
o
o
o
Auto-reverse
cord rewind
o
o
o
o
o
o
o
x
x
Electrobrush
socket
Overheating
warning light
x
x
x
x
x
Blower
connection
x
x
x
x
x
x
Separate
Radius of
operation
10m
10m
10m
10m
10m
10m
10m
Dustbag
capacity
4L
4L
4L
4L
4L
4L
4L
Fuse rating
10A, slow-trip switch
Protection
classification
Class II, double-insulated
Model
S 334i
S 336i
S 338i
S 342i
S 344i
S 346i
S 347i
S 348i
Suction power
regulation via x
air inlet valve
x
x
x
x
x
x
x
+/- buttons
x
x
Fully
electronic (+/buttons)
x
x
x
x
x
AUTO setting
x
x
x
x
x
x
x
x
x
x
x
x
Booster
function
Telescopic
suction tube
x
x
x1
x
x
Universal floor SBD
attachment
304
SBD 304 SBD 304 SBD 304 SBD 264 SBD 264 SBD 264 SBD 264
Super Air
Clean filter
x
o
o
o
x
o
o
o
Active Air
Clean filter
o
x
o
x
o
x
x
o
S-Class filter
o
x
o
o
o
o
x
Auto-reverse
cord rewind
x
x
x
x
x
x
x
x
Electrobrush
socket
x
x
x
x
x
x
x
x
Overheating
warning light
x
x
x
x
x
x
x
x
Blower
connection
x
Separate Separate Separate x
Separate Separate Separate
Radius of
operation
10m
10m
10m
10m
10m
16
10m
10m
10m
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Model
S 334i
S 336i
S 338i
S 342i
S 344i
S 346i
S 347i
S 348i
Dustbag
capacity
4L
4L
4L
4L
4L
4L
4L
4L
Fuse rating
10A, slow-trip switch
Protection
classification
Class II, double-insulated
Model
S 401i
S 408i
S 410i
S 421i
S 424i
S 426i
S 428i
Suction power
regulation via
air inlet valve
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Rotary switch
x
Slide switch
Telescopic
suction tube
Super Air
Clean filter
x
x
x
Active Air
Clean filter
x
S-Class filter
x
x
Electrobrush
socket
Overheating
warning light
x
x
x
x
x
x
x
x
Blower
connection
x
Separate
x
x
x
Separate Separate
Radius of
operation
10m
10m
10m
10m
10m
10m
10m
Model
S 434i
S 436i
S 438i
S 444i
S 446i
S 447i
S 448i
Suction power
regulation via
air inlet valve
x
x
x
x
x
x
x
Rocker switch
x
x
x
Fully electronic
(+/- buttons)
x
x
x
x
AUTO setting
x
x
x
x
x
x
x
x
x
x
x
x
Booster
function
Telescopic
suction tube
x
Super Air
Clean filter
x
Active Air
Clean filter
x
x
x
x
x
S-Class filter
x
x
Auto-reverse
cord rewind
x
x
x
x
x
x
x
Electrobrush
socket
x
x
x
x
x
x
x
17
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Model
S 434i
S 436i
S 438i
S 444i
S 446i
S 447i
S 448i
Overheating
warning light
x
x
x
x
x
x
x
Blower
connection
x
Separate
Separate
x
Separate
Separate Separate
Radius of
operation
10m
10m
10m
10m
10m
10m
10m
x = Standard
o = Optional
1
Stainless-steel telescopic suction tube
1.3
Technical Data
1.3.1
S 247i - S 256i
1.3.2
Suction pressure
240mbar
Throughflow rate
56 L/sec
Dustbag
Two-ply paper bag
Dustbag capacity
4L
Operational radius
9.5m
Weight including accessories
7.9kg
Electrical connection
220-230 V 50Hz
Fuse rating
10A, slow-trip switch
Safety classification
Doubly insulated
Test certificate
VDE interference suppression symbol
Noise level
74.5dBA
S 269i - S 282i
Suction pressure
240mbar
Throughflow rate
56 L/sec
Dustbag
Two-ply paper bag
Dustbag capacity
5.8L
Operational radius
9.7m
Weight including accessories
8.8kg
Electrical connection
220-230 V 50Hz
Fuse rating
10A, slow-trip switch
Safety classification
Doubly insulated
Test certificate
VDE interference suppression symbol
Noise level
74.5dBA
18
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
1.3.3
1.3.4
S 3xx
S 3xx
Booster
Eco
Suction pressure
250mbar
275mbar
-
Throughflow rate
67 L/sec
72 L/sec
-
Dustbag capacity
4L
Operational radius
10m
Weight including
accessories
8 - 9 kg, depending on
model
Electrical connection
230VAC 50Hz
Fuse rating
10A, slow-trip switch
Safety classification
Doubly insulated
Test certificate
VDE interference
suppression symbol
Max. suction power
290W
320W
210W
Rated power
1200W/1500W
1200W/1600W 800W
Noise level
73dBA
73dBA
71.5dBA
S 4xx
S 4xx
Booster
Suction pressure
260mbar
280mbar
Throughflow rate
63 L/sec
68 L/sec
Dustbag capacity
5.8L
Operational radius
10m
Electrical connection
230VAC 50Hz
Fuse rating
10A, slow-trip switch
Safety classification
Doubly insulated
Test certificate
VDE interference suppression
symbol
Max. suction power
290W
330W
Rated power
1300W/1500W
1200W/1600W
Noise level
74.5dBA
19
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
1.4
Accessories
1.4.1
Standard Accessories
S 247i - S 256i
S 269i - S 282i
S 3xx
S 4xx
Telescopic
suction tube
w/locking
system
depends on
model
depends on
model
Telescopic or
sectioned
x
Suction hose
x
x
x
x
Floor
attachment
x
x
x
x
Crevice nozzle
x
x
x
x
Upholstery
nozzle
x
x
x
x
Dusting brush
x
x
x
x
modeldependent
Radiator brush
1.4.2
1.4.3
S-Class filter
modeldependent
modeldependent
Active Air Clean
filter
modeldependent
modeldependent
Optional Accessories
S 247i - S 256i
Radiator brush, universal brush, large area floor attachment, floor brush
for hard floor surfaces, cloth filter bag, electric brush S 017 with cable
clips for standard suction hose for vacuum cleaner w/socket, electric
brush S 019 and hose with integrated wiring for vacuum cleaners
w/socket, turbo brush for all models
S 269i - S 282i
Radiator brush, universal brush, large area floor attachment, floor brush
for hard floor surfaces, cloth filter bag, turbo brush for all models
S 3xx
See accessory catalog
S 4xx
Electrobrush SEB 0191, electrohose SES 105
Accessories with New Locking System (S 2xx Only)
Figure 1-29: 9.3cm Adapter Sleeve to Connect New and Old Accessories
Figure 1-30: 9.3cm Swivel Adapter Sleeve to Connect the Locking Electric Brush
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 1-31: 20cm Swivel Adapter Sleeve to Connect Lockable Accessories
1.5
Electrobrush Plug System (S 3xx and S 4xx Only)
Due to a change in the EN 60320 component legislation, the built-in socket
and connection cable for the SEB 215 electrobrush have been modified with
effect from March 1, 1998.
Vacuum cleaner built-in socket
All vacuum cleaners manufactured since March 1, 1998, are fitted with the
new built-in socket.
Designation on the vacuum cleaner data plate:
Old version
S 324i or S 424i
New version
S 324i-2 or S 424i-2
Electrobrush connection cable
Designation on the electrobrush data plate:
Old version
SEB 215
New version
SEB 216
Different versions
If the built-in socket and the electrobrush connection cable plug do not match,
the connection cable must be changed as appropriate.
4.0
Description of Function
4.1
Air Clean Plus Filter System
The dustbag is made of two-ply filter paper and acts to filter out up to 99.6% of
the dust in the ambient air taken into the cleaner.
Depending on model, either an Active Air Clean filter or an S-class filter is also
supplied. It is fitted in a cassette at the exhaust opening. Models with this type
of filter are supplied with a blower plate. To use the unit as a blower, the filter
cassette must be removed and this blower plate inserted.
4.1.1
Super Air Clean Filter
After air has passed through the motor protection web filter, it flows along the
exhaust path in the rear casing to the Super Air Clean filter where remaining
dust is removed. The electrostatically pre-charged Air Clean filter can remove
almost 100% of any remaining fine dust particles.
The dust quantity remaining in the air is only approx. 0.05 mg/m3.
The dust quantity in normal room air is approx. 0.10 mg/m3.
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
4.1.2
Active Air Clean Filter
The Active Air Clean filter contains active charcoal and can be fitted to absorb
odors from the exhaust air.
4.1.3
S-Class Filter
The S-class filter is a particulate air filter and in many countries its fitting is a
legal requirement when the vacuum cleaner is to be used in operating rooms
or hospitals. This filter complies with all requirements of the IEC (International
Electrotechnical Commission) and DIN 44956 regarding S-class filters. It
consists of a glass fiber core covered with a filter equivalent to half a Super Air
Clean filter.
The dust quantity remaining in the air is classified as particles and is approx.
0.001 mg/m3.
4.2
Dustbag Change Indicator
4.2.1
S 27x
Differential pressure indicators have now been modified (as with the S 25x
series). The following simple test with a new dustbag and the maximum power
setting shows which type is installed:
Modified differential pressure indicator: When a hand is placed over the
suction inlet then the red marking in the indicator becomes visible.
Previous type of differential pressure indicator: When tested as above, no
change in the indicator can be seen and the following test should be carried
out:
Operational test for the older type of differential pressure indicator
1. All filters (dustbag compartment, exhaust and Super Air Clean) in the
vacuum cleaner must be clean (if necessary, they should be changed).
2. Remove the dustbag.
3. Install the test collar (tool no. B 8081) in the dustbag holder.
4. Close the lid and select the highest power setting.
5. Correct operation of the differential pressure indicator is shown when the
red marking of the indicator is fully visible.
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
4.2.2
S 3xx
Figure 4-1: S 3xx Dustbag Change Indicator
The dustbag change indicator is incorporated in the dustbag compartment
casing.
The point at which the indicator shows that the dustbag should be changed is
affected by the following:
− Dust quantity
− Dust type
− Suction attachment
− Power setting
As the bag is filled, its permeability is reduced and the negative pressure level
in the dust compartment rises. This increased negative pressure evacuates
the dustbag change indicator through its opening (Figure 4-1, Item 3) and
moves the red indicator (Figure 4-1, Item 2), so making it visible.
The point at which the indicator shows that the dustbag should be changed
can be modified by the adjustment screw (Figure 4-1, Item 1); see Section 6.6.
If flour or fine mineral dust is vacuumed, the indicator may show that the
dustbag should be changed even if it is not full. Conversely, with coarse dust
particles the dustbag may be full even though this is not shown by the
indicator. In both cases, the dustbag should be changed.
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
4.2.3
S 4xx
Figure 4-2: S 4xx Dustbag Change Indicator
Depending on the dust quantity and type, and the hose attachment in use, the
indicator shows when the dustbag should be changed.
If flour or fine mineral dust is vacuumed, the indicator may show that the
dustbag should be changed even if it is not full.
As the bag is filled, its permeability is reduced and the negative pressure level
in the bag is reduced. At the same time the negative pressure in the dust
compartment rises.
This increased negative pressure evacuates the dustbag change indicator
through its opening (Figure 4-2, Item 3) and removes air from the concertina
hose (Figure 4-2, Item 2). This then collapses and the visible indicator (Figure
4-2, Item 1) advances along its scale.
4.3
Suction Power
Figure 4-3: Suction Power Curve
The suction power is the product of the negative pressure developed and the
air throughput achieved divided by 10. The fan motor extracts air from the
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
dustbag compartment, so producing a negative pressure at the floor
attachment. Air is then sucked into the appliance via the floor attachment and
takes dirt and dust particles with it.
Figure 4-3 is a simplified graph showing the relation between the two factors,
negative pressure “h” in mbar and air throughput “Q” in liters per second. The
suction power “P2” is the product of “h” and “Q” divided by 10.
It can be clearly seen that the maximum negative pressure “h” is developed
when the air inlet is completely closed, i.e. air throughput “Q” is zero.
Conversely, maximum air throughput “Q” is achieved when the air inlet is fully
open. In this case, however, no negative pressure “h” can be developed. The
optimum operating range is, therefore, at the upper area of the suction power
“P2” curve.
The floor attachment and other accessories greatly influence the effective
suction power:
1. A crevice nozzle, with its small opening, allows a large negative
pressure to develop with only a low rate of air throughput.
2. The floor attachment has a large opening and so allows only a low
negative pressure to develop but has a high rate of air throughput.
Note:
The above shows that the figure given on the data plate (e.g., P = 1500W) is
only a description of motor power and not a true guide to the vacuum cleaner
suction power.
4.4
Power Regulation
4.4.1
Models with Manual Power Selection
Power control with models S 310i - S 338i and S 410i - S 438i is achieved by
phase chopping, with a potentiometer operated by the power selector (if
applicable) providing the phase angle control.
4.4.2
Automatic Models
S 3xx series:
If the set power level is too high, the effort required to slide the floor
attachment across a closely woven carpet increases greatly as the suction
effect holds the attachment firmly on the floor.
With such carpets, a good seal exists between the floor attachment and the
floor so that a lower suction power provides effective dust extraction.
Dust extraction is as thorough as when operating at full power on a smooth
floor covering.
With automatic models, the power is set automatically via a negative pressure
switch to a level appropriate for the floor covering being cleaned.
This ensures that vacuuming is always performed at the optimal suction power
setting. Closely woven carpets will be cleaned with a lower power level thus
saving energy.
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
S 4xx series:
Power control on automatic models is via a negative pressure switch
combined with appropriate electronics.
Laboratory experimentation has shown the optimum level of the ratio of
suction power to electric power. The efficient automatic method of operation
acts to maintain this level and forms the basis of the software-controlled motor
power control.
The negative pressure switch has upper and lower switching points. These
switching points act to introduce breaks in the power curve.
If the lower switching point is reached, the control system switches to high
power. Conversely, if the upper switching point is reached, power is reduced.
During phase-chopping control, the triac is electronically controlled.
4.4.3
Booster Setting
Models S 346i - S 348i:
When the booster button is pressed, the electronic control operates the motor
at its maximum power setting for 10 seconds. This function can be chosen
twice in succession. A third attempt to operate this feature will not be
accepted. In this case the booster LED flashes as, after a second boost, the
electronic control introduces a pause of 60 seconds before the booster
function can be operated again.
With models S 445i - S 448i, the triac for phase-chopping is controlled
electronically.
Power is controlled via the +/- buttons on the foot switch assembly.
When the booster button is pressed, the electronic control operates the motor
at its maximum power setting for 10 seconds. This function can be chosen
twice in succession. A third attempt to operate this feature will not be
accepted. In this case the booster LED flashes as, after a second boost, the
electronic control introduces a pause of 60 seconds before the booster
function can be operated again.
During automatic operation, the negative pressure switch assumes power
control.
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
4.4.4
Phase-Chopping Control - Principle of Operation
Figure 4-4: Phase-Chopping Control
α
C1
D1
D2
R1
RL
X
Phase angle
Capacitor
Trigger diode, here a diac
Bi-directional thyristor, here a triac
Potentiometer for setting the phase angle α
Load, here the motor
Triac, conductive
View of half-wave:
The triac D2 blocks (chops) the sinusoidal wave at the zero crossover point.
The triac now has high impedance. The capacitor is charged via the circuit R1C1-RL.
When UC reaches the switching level for the diac D1, the capacitor C1 is
discharged in a pulse via the gate of D2.
This pulse switches the triac D2, making it conductive.
At the next zero crossover point, the triac D2 blocks the sinusoidal wave and
the process repeats itself.
Figure 4-4 shows the chopping of the half-wave. The phase angle, α, is
directly proportional to the potentiometer setting R1 which thus controls the
average motor power.
5.0
Service and Maintenance
General information:
Service and repair work should only be carried out by qualified persons in
accordance with local and national safety regulations.
The appliance should be disconnected from the power supply before starting
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
service work.
5.1
Dustbag Compartment Lid (and Hinges, if Applicable)
5.1.1
S 25x
1. Open the dustbag compartment lid as far as possible, and then pull
upwards to remove.
2. Release locking tabs, using a small flathead screwdriver if necessary.
5.1.2
S 27x
1. Remove the 2 Phillips screws securing the sides of the dustbag
compartment lid.
2. Open the dustbag compartment lid as far as possible, and then pull
upwards to remove. The hinges may also come off.
5.1.3
S 3xx
1. Open the dustbag compartment lid fully.
2. Push the dustbag compartment lid to the rear to release its clip retainers.
3. Pull the dustbag compartment lid upwards to remove it.
5.1.4
S 4xx
1. Open the dustbag compartment lid until it is vertical. The hinges (Figure 51, Item 4) engage and hold it in this position.
2. Use a screwdriver to unclip the hinges from their holders (Figure 5-1, Item
3) on the left and right.
3. To re-install, push the dustbag compartment lid, with its hinges installed,
into the holders.
Figure 5-1: Dustbag Compartment Lid, S 4xx
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
5.2
Accessory Compartment Lid
Open the accessory compartment lid and pull it upwards (using a suitable tool,
if necessary) to remove it from the dust compartment lid.
5.2.1
Reassembly (S 2xx Only)
1. Insert the hinges (Figure 5-2, Item 4).
2. Slide and press the lid horizontally (Figure 5-2, Item 1) onto the hinges
until the clips engage, and install the spring.
3. When closing the lid, ensure that the spring arm (Figure 5-2, Item 3) is
located in its guide slot (Figure 5-2, Item 2).
Figure 5-2: Accessory Compartment Lid, Hinges and Springs (S 2xx Shown)
5.3
Dustbag Holder
5.3.1
S 25x
1. Release the holder’s locking tabs (Figure 5-3, Item 2) with a screwdriver,
and then remove it.
2. When re-installing, ensure that the spring (Figure 5-3, Item 1) is correctly
located.
Figure 5-3: Dustbag Holder, S 25x
5.3.2
S 27x
1. Open the dustbag compartment lid and take out the dustbag.
2. Unscrew the holder’s retaining screws (Phillips) (Figure 5-4, Items 2 and 5)
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
to remove it.
3. Re-install the holder (Figure 5-4, Item 1) as follows:
a. Tighten screw (Figure 5-4, Item 2).
b. Lightly install screw (Figure 5-4, Item 5) so that the holder (Figure 5-4,
Item 1) can still be installed.
c. Insert the spring (Figure 5-4, Item 3) as shown in Figure 5-4 before
installing the holder. The longer spring arm (Figure 5-4, Item 4) must
point downwards.
d. Tighten screw (Figure 5-4, Item 5).
Figure 5-4: Dustbag Holder, S 27x
5.3.3
S 3xx
1. Open the dustbag compartment lid fully.
2. Unsnap and pull up the dustbag holder in the direction of the arrow.
3. Inserting a dustbag: With the dustbag folded, slide it into its holder. Close
the dustbag compartment lid.
Figure 5-5: Dustbag Holder, S 3xx
5.3.4
S 4xx
1. Remove the dustbag holder screws (Figure 5-1, Item 1) from the left and
right.
2. Remove the holder upwards.
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
3. When re-installing, use pointed pliers to tension and hold the spring before
pressing the holder into place.
5.4
Dust Channel
5.4.1
S 25x
1. Open the dust compartment lid.
2. Remove the 3 Phillips screws securing the dust channel to the dust
compartment lid and release the dust channel.
5.4.2
S 27x
1. Open the dust compartment lid.
2. Remove the 2 Phillips screws securing the bottom of the dust channel to
the underside of the dust compartment lid.
3. Separate the dust channel assembly from the dust compartment lid.
5.4.3
S 3xx and S 4xx
1. Open the dustbag compartment lid fully.
2. Unscrew the 4 Phillips screws (Figure 5-6, Item 1).
3. Remove the dust channel (Figure 5-6, Item 2).
Figure 5-6: S 3xx and S 4xx Dust Channel
5.5
Dustbag Change Indicator
5.5.1
S 25x
1. Remove dust channel first, then remove the additional Phillips screw
securing the indicator to the dust compartment lid.
2. Release the indicator from the lid.
5.5.2
S 27x
1. Open the dust compartment lid.
2. Unscrew the 2 Phillips screws securing the indicator to the underside of
the dust compartment lid.
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
3. Release the indicator from the lid.
Note:
Do not unscrew the lacquered screw as this is used to adjust the indicator.
If the indicator needs to be dismantled then the indicator disc must first be
turned to the right as far as possible.
5.5.3
S 3xx
1. Open the accessory compartment lid.
2. Unscrew the 2 Phillips screws securing the indicator to the lid.
3. Remove the indicator from the lid.
5.5.4
S 4xx
1. The accessory compartment lid catch and the dustbag change indicator
form one part.
2. Unscrew the retaining screw and remove the part.
3. When re-installing, ensure that the lid opener spring is correctly located.
5.6
Cap Assembly
5.6.1
S 25x
1. Remove the dust compartment lid (Section 5.1).
2. Remove the 2 Phillips screws securing the cap assembly to the base.
3. Lift up the cap assembly and pull forward to remove it from the base.
Figure 5-7: S 25x Cap Assembly
Note:
Before installing the cap assembly (Figure 5-7, Item 1) the end strip (Item
2) must be removed. Attach the assembly with the screws (Figure 5-10,
Item 2), then clip on the end strip (Figure 5-7, Item 2), while pressing
down on the switch cover. Take care not to trap any wires.
5.6.2
S 27x
1. Remove the rear casing (Section 5.7).
2. Remove the 2 Phillips screws securing the trim piece.
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
3. Separate the complete cap assembly from the rear casing.
Figure 5-8: S 27x Rear Casing
5.6.3
S 3xx
1. Remove the dustbag compartment lid (Section 5.1).
2. Remove the 2 Phillips screws securing the cap assembly to the base.
3. Unsnap the cap assembly at the front and remove it.
5.6.4
S 4xx
1. The cap assembly is clipped onto the rear casing and held with 2 Phillips
screws (Figure 5-9, Item 1).
2. Remove the screws and lift off the cap assembly. The on/off and cord
rewind foot switches are now accessible.
3. The electronic, control lamp and power selector can now also be accessed
and removed as required.
Figure 5-9: Cap Assembly, S 4xx
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
5.7
Rear Casing
5.7.1
S 25x
1. Remove the dust compartment lid, Section 5.1.
2. Unscrew the 3 Phillips screws (Figure 5-10, Item 1) to remove the rear
casing (Figure 5-10, Item 3).
3. The fan assembly and cord rewind mechanism are now accessible.
4. The complete foot switch assembly can be removed by unscrewing its
retaining screws (Figure 5-10, Item 2).
Figure 5-10: Rear Casing, S 25x
5.7.2
S 27x
Unscrew the screws (Figure 5-11, Item 1) and remove the rear casing (Figure
5-11, Item 2).
Figure 5-11: Rear Casing, S 27x
5.7.3
S 3xx
1.
2.
3.
4.
5.
Remove the dustbag compartment lid, Section 5.1.
Remove the filter insert.
Remove the cap assembly, Section 5.6.
Remove the 5 Phillips screws securing the rear casing (Figure 5-12).
Remove the rear casing upwards.
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 5-12: Rear Casing, S 3xx
Note:
Before re-installing the rear casing, make sure the gasket is in place!
5.7.4
S 4xx
1.
2.
3.
4.
5.
Remove the cap assembly (Section 5.6).
Remove the 4 Phillips screws (Figure 5-13, Item 1).
Lift the rear casing and disconnect its plug connections.
Remove the rear casing. The motor and cord reel are attached to it.
After unplugging the connection wires, the cord reel can be removed from
its holders on the rear casing.
Note:
The cord reel should only be
opened with a special bit (tool
no. C 6006).
Figure 5-13: Rear Casing, S 4xx
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
5.8
Foot Switches
5.8.1
S 25x and S 27x
1. Remove suction power selector (S 27x only).
2. Press the locking tab (Figure 5-14, Item 1 or 2) down with a small
screwdriver and slide out the appropriate foot switch.
Figure 5-14: Foot Switches, S 25x and S 27x
5.8.2
S 3xx
1. Press the foot switch (Figure 5-15, Item 1) down.
2. At the same time, use a small screwdriver to release the catch (Figure 515, Item 2).
3. Remove the foot switch upwards from the cap assembly.
Figure 5-15: Foot Switch, S 3xx
5.8.3
S 4xx
1. Remove the cap assembly (Section 5.6).
2. Loosen the on/off and cord rewind foot switches. Use a screwdriver to
release the retaining clips at Figure 5-16, Item 3, and push out the foot
switches.
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 5-16: Foot Switch, S 4xx
5.9
Potentiometer/Suction Power Selector
5.9.1
S 2xx
2x1i & 2x2i:
Remove the selector switch knob and change the potentiometer.
2x4i & 2x5i:
1. Release the catch (Figure 5-17, Item 2) with a small screwdriver and
remove the switch cover (Figure 5-17, Item 1).
2. The potentiometer control (Figure 5-19, Item 3) can be removed after
releasing the catches (Figure 5-18, Item 1).
3. The toothed belt (Figure 5-19, Item 1) can be replaced when the indicator
cylinder (Figure 5-19, Item 4) is levered from its holder.
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 5-17: Potentiometer Cover, S 2x4i and S 2x5i
Figure 5-18: Catches on Potentiometer Control, S 2x4i and S 2x5i
Figure 5-19: Potentiometer Control, S 2x4i and S 2x5i
Important:
Before replacing the complete potentiometer assembly (Figure 5-19, Item
3) and the indicator cylinder (Figure 5-19, Item 4), ensure the following:
The cam (Figure 5-19, Item 2) of the belt drive cog must point upwards
and the indicator cylinder should be set to show the lowest setting
(“Automatic” for S 280i).
Note:
For S 278i, the suction power selector is on the handle of the wired hose
(Section 5.22).
5.9.2
S 3xx
May include overheat light, depending on model.
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
1.
2.
3.
4.
Remove the cap assembly (Section 5.6).
Take off the rotary dial (pry off with a small screwdriver, if necessary).
Remove the Phillips screw.
Use a small screwdriver to release the spade connections from the white
terminal block (mark/tag all connections before disconnecting them!).
5. Release the overheat light and potentiometer from the cap assembly.
Figure 5-20: Rotary Potentiometer, S 3xx
Figure 5-21: Slide Potentiometer, S 3xx
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 5-22: +/- Buttons, S 3xx
Figure 5-23: Electronic +/- Buttons, S 3xx
5.9.3
S 4xx
Rotary potentiometer:
1. Carefully ease off the switch knob using a lid opener, part no. 3051670.
2. Use a small screwdriver to hold the clip fitting and press gently on the
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
switch spindle to release the switch.
Slide potentiometer:
1. Remove the foot switch assembly (Section 5.8).
2. Set the slide potentiometer to 300W.
3. Remove the group plug (Figure 5-24, Item 2) from the underside. Take
care to note its positioning.
4. Remove the regulator (Figure 5-24, item 4) with cylinder and replace as
required.
5. When re-installing, turn the regulator clockwise to its end stop, locate the
cylinder in the axial guide (Figure 5-24, Item 1) and clip the holder with
potentiometer into the guide slit (Figure 5-24, Item 5).
Figure 5-24: S 4xx Slide Potentiometer
Foot-operated power selector:
1. Remove the cap assembly (Section 5.6).
2. Loosen the on/off and cord rewind foot switches. Use a screwdriver to
release the retaining clips at Figure 5-25, Item 3, and push out the foot
switches.
3. Unclip the selector switch cover (Figure 5-25, Item 4) on the left and right,
and remove it.
4. Lift the retaining clip (Figure 5-25, Item 2) slightly to remove the
potentiometer holder and drive piece (Figure 5-25, Item 1).
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 5-25: Foot-Operated Power Selector, S 4xx
Note:
Before re-installing, ensure that the flattened shaft side of the cog drive
(Figure 5-25, Item 3) is vertical and at the front, and that the indicator
cylinder shows the lowest setting.
5.10
Electronic (S 4xx Only)
1. Remove the foot switch assembly (Section 5.8).
2. Unscrew the group plug (Figure 5-26, Item 2) from the underside. Take
care to note its positioning.
3. Release the retaining clips at the rear (Figure 5-26, Item 1) and front
(Figure 5-26, Item 2) of the power selector switch (Figure 5-26, Item 3) and
remove the selector switch.
4. Slide out the fascia piece (Figure 5-26, Item 4).
5. Unclip the electronic’s retainers (Figure 5-26, Item 5) and lift out the
electronic.
6. Re-install by following these instructions in reverse order.
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 5-26: S 4xx Electronic Removal
5.11
Fault/Overheat Indicator Lamp
5.11.1
S 2xx
Remove the foot switch assembly (Section 5.8). The indicator lamp(s) should
always be pushed out from below as they are clipped into place.
5.11.2
S 4xx
The lamp can be removed from below by gently pulling its connection wires.
5.12
Plug Housing
5.12.1
S 25x
1. Remove the cap and foot switch assemblies (Sections 5.6 and 5.8).
2. Release the retaining clips and remove the plug housing.
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S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
5.12.2
S 27x
1. Remove the mounting panel and cap assembly (Section 5.6).
2. Release the retaining clips (Figure 5-27, Item 1) and remove the plug
housing.
Figure 5-27: S 27x Plug Housing
5.13
On/Off Switch
5.13.1
S 25x
1. Remove the cap assembly (Section 5.6).
2. Release the switch from the rear casing.
5.13.2
S 27x
Dismantle the cap and foot switch assemblies (Sections 5.6 and 5.8) to
access the switch.
5.13.3
S 3xx
1. Remove the cap assembly (Section 5.6).
2. Release the switch from the cap and disconnect its electrical connections.
5.14
Flush Socket Outlet
5.14.1
S 25x
Remove the Phillips screw securing the plastic strip to the underside of the
vacuum base. The plastic strip will then snap out, allowing access to the
outlet.
5.14.2
S 27x
1. Open the dust compartment lid.
2. Use a flathead screwdriver to apply pressure around the locking tabs and
so push out the socket.
44
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Note:
With models S 280i and S 282i (Automatic) the sensor, Figure 5-27, Item
1, must first be removed (see Section 5.15).
5.15
Sensor (Automatic Models S 280i - S 282i)
1. Remove the cover (see Figure 5-31, Item 3).
2. Unscrew the retaining screws (Figure 5-28, Item 2) and disconnect the
sensor connection wires (Figure 5-28, Item 3).
3. Remove the sensor (Figure 5-28, Item 1).
Figure 5-28: Sensor Removal for Models S 280i - S 282i
5.16
Cord Reel
5.16.1
S 23x
1.
2.
3.
4.
5.16.2
Remove the cap assembly (Section 5.6).
Remove the Phillips screw securing the cord reel to the rear casing.
Release the cord reel from the rear casing.
Disconnect the cord reel electrical connections.
S 25x
1. Remove the cap assembly (Section 5.6) and remove the reel retaining
screw(s) (Phillips). Remove the cord reel, and then disconnect its electrical
connections.
2. When replacing the cord reel or brake lever, the following should be noted:
a. Cap assembly with lug (Figure 5-29, Item 1): No brake lever
modification is required.
b. Cap assembly without lug: File down part of the brake lever top edge
(Figure 5-30, Item 2) until it matches Figure 5-30, Item 1.
45
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 5-29: Cap Assembly with Lug, S 25x Models
Figure 5-30: Brake Lever Top Edge, S 25x Models
5.16.3
S 27x
1. Dismantle the mounting panel and remove the reel retaining screws.
2. Disconnect the electrical connections and remove the cord reel.
5.16.4
S 3xx
The cord reel is installed in the cap assembly.
1. Remove the cap assembly (Section 5.6).
2. Remove the Phillips screw securing the cord reel.
3. Remove the Phillips screw securing the terminal block next to the cord
reel.
4. Ease open the group plug retaining lug and disconnect the plug.
5. Remove the cord reel upwards.
Note:
The cord reel must only be installed when the cord is fully wound in. This
ensures correct operation of the rewinding mechanism. Before the cord
reel is clipped into place in the cap assembly, the mains plug must be
inserted through the casing opening.
5.16.5
S 4xx
See cap assembly, Section 5.6.
Note:
The cord reel should only be opened with a special bit, tool no. C 6006.
46
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
5.17
Power Cord
The power cord supplies power to the built-in socket. For models S 238i and S
240i it is also used to control suction power.
5.17.1
S 27x
1. Remove the plug housing screws (Phillips) (Figure 5-31, Item 1), pull off
the bumper strip, if applicable (Figure 5-31, Item 2) and remove the plastic
strip from the underside of the vacuum.
2. Disconnect the power cord at the terminal block or the sensor (S 280i).
Figure 5-31: S 27x Power Cord Removal
5.17.2
S 3xx
1.
2.
3.
4.
Remove the cord reel (Section 5.16).
Pull out and unwind the power cord (Figure 5-32, Item 1).
Block the drum securely to prevent it from rewinding.
Remove the 2 screws securing the upper part of the cord reel (Figure 5-32,
Item 2).
5. Ease open the retaining lugs (Figure 5-32, Item 3) and remove the upper
part of the cord reel.
6. Remove the power cord.
Figure 5-32: S 3xx Power Cord Removal
47
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Note:
When re-installing the cord in the cord reel, ensure that its end is firmly
pressed down into the strain relief and held securely.
5.18
Motor Assembly
5.18.1
S 25x
1. Remove the cap assembly (Section 5.6).
2. Take out the motor and disconnect its electrical connection.
3. The location of individual motor components is shown in Figure 5-33.
Important:
When re-installing the motor, care must be taken to ensure that the rubber
cushion (Figure 5-33, Item 3) and the motor seal (Figure 5-33, Item 13) are
correctly located.
Figure 5-33: S 25x Motor Assembly
1
2
3
4
5
6
7
8
9
10
Retaining screw
Holder
Rubber cushion
NTC resistor
Retaining screw
Thermostat
Speed control electronic
Retaining screw
Retaining screw
Interference suppression capacitor
48
11
12
13
14
15
16
17
18
19
20
Retaining screw
Bracket
Motor seal
Motor
Plug
Plug housing
Retaining screw
Motor brush
Clamping bracket
Retaining screw
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
5.18.2
S 27x
1. Remove the cap assembly (Section 5.6).
2. Remove the two Phillips screws securing the motor to the rear casing and
disconnect its electrical connections.
3. The location of individual components is shown in Figure 5-34.
Important:
When re-installing the motor care must be taken to ensure that the rubber
cushion (Figure 5-34, Item 4) and the motor seal (Figure 5-34, Item 7) are
correctly located! The speed control will vary depending on the type of power
selector switch installed.
Figure 5-34: S 27x Motor Assembly
1 Motor brushes
8 Motor
2 Clamping
bracket
3 Retaining screw
4 Rubber cushion
5 Retaining screw
6 Holding bracket
7 Motor seal
9 Retaining screw
10
11
12
13
Holding bracket
Retaining screw
Thermostat
Resistor
49
14 Speed control electronic:
EDL 202, S 271i - S 276i
EDL 302, S 280i -S 282i
EDL 402, S 278i
15 Retaining screw
16
17
18
19
20
Plug
Plug housing
Retaining screw
Retaining screw
Interference suppression
capacitor
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
5.18.3
S 3xx
The motor is installed in the cap assembly.
1. Remove the cap assembly (Section 5.6).
2. Remove the Phillips screw securing the motor.
3. Ease open the group plug retaining lug and disconnect the plug.
4. Lift the motor at the rear and remove it.
5. Remove the motor holder and seal.
Reinstalling:
1. Install the holder with seal on the motor.
2. Ensure that the motor seal is positioned correctly.
3. Reinstall the motor in the rear casing.
5.18.4
S 4xx
Motor with holding bracket:
1. Unscrew the rear casing (Section 5.7).
2. After lifting the rear casing, the holding bracket (Figure 5-35, Item 1) can
be removed, thus releasing the motor.
Figure 5-35: S 4xx Motor with Holding Bracket
Motor with central bearing:
1. Unscrew the rear casing (Section 5.7).
2. Unclip and release the central bearing (Figure 5-36, Item 1) from the rear
casing.
3. Unscrew the motor holder (Figure 5-36, Item 2) if necessary and remove
the motor.
4. If a holding bracket is also present as in Figure 5-35 then it should also be
removed.
50
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 5-36: S 4xx Motor with Central Bearing
5.19
Motor Electronic (Speed Control Board)
5.19.1
S 3xx
1. Remove the motor (Section 5.18).
2. Depending on model, either remove the 2 Phillips screws securing the
electronic or pull out the electronic from its plug connections.
5.19.2
S 4xx
1. Remove the 2 Phillips screws securing the electronic.
2. Pull out the electronic from its plugs on the motor.
5.20
Motor Brushes
5.20.1
S 3xx
1.
2.
3.
4.
Remove the motor (Section 5.18).
Pull off the rear holding plate on the motor.
Remove 2 screws from each brush.
Remove the brushes.
Note:
When the brushes need replacing, both must always be changed at the same
time.
5.20.2
S 4xx
1. Remove the motor holder (Figure 5-36, Item 2).
2. Unscrew the Torx screws from the brush holders. Unplug and remove the
brush holders.
51
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
3. When the brushes need changing, always change both at the same time.
The brush set always includes one brush with automatic worn-brush cutout.
5.21
Electric Brush Socket (S 254i and S 255i Only)
1. Unscrew the retaining screws under the socket.
2. Remove the cord cover.
5.22
Suction Hose with Integrated Wiring (S 2xx Only)
5.22.1
S 254i and S 255i
This has a built-in socket in the handle for installing the S 016 electric brush.
Note:
2-wire connection cable.
Figure 5-37: S 254i and S 255i Suction Hose with Integrated Wiring
5.22.2
S 270i - S 276i, S 280i
Wired hose with built-in socket in the handle for the S 016 electric brush.
52
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Note:
2-wire connection cable.
Figure 5-38: S 270i - S 276i, S 280i Suction Hose with Integrated Wiring
5.22.3
S 278i
Wired hose with slide potentiometer speed control and built-in socket in the
handle for the S 016 electric brush.
Note:
3-wire connection cable. Suction
power selector (slide
potentiometer) on the handle.
Figure 5-39: S 278i Suction Hose with Integrated Wiring
5.23
Turbo Brush (S 2xx Only)
Unscrew the screws (Figure 5-40, Item 2) to remove the cover (Figure 5-40,
Item 1). All brush parts are then accessible.
53
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 5-40: S 2xx Turbo Brush
5.24
Buffer/Bumper Strip (S 3xx and S 4xx Only)
5.24.1
S 3xx
1. The bumper strip around the base casing also acts as a seal for the
dustbag and motor compartments.
2. Remove the cap assembly (Section 5.6).
3. Remove the 2 Phillips screws under the carrying handle.
4. Unfasten the bumper strip.
54
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Note:
After re-installing, the bumper strip must be seated correctly and evenly
around the casing, or suction will be lost.
5.24.2
S 4xx
The bumper strip (Figure 5-1, Item 2) also acts as a seal for the dustbag and
motor compartments.
1. To remove the bumper strip, first unscrew the two Phillips screws in the
carrying handle.
2. Remove the dustbag compartment lid (Section 5.1) and the rear casing
(Section 5.7). The bumper strip can now be unfastened. When reinstalling, ensure that it is seated correctly.
5.25
Grill for HEPA Filter (S 3xx Only)
1. Remove the dust compartment lid (Section 5.1).
2. Loosen the 2 Phillips screws securing the filter grill.
3. Release the grill at the rear and unclip at the front to remove.
55
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
6.0
Fault Diagnosis
6.1
Improved Castor (S 2xx Only)
To improve the floor-running properties of canister vacuum cleaners a
modified castor and a new washer have been introduced. This combination,
ready-lubricated with silicone oil, is available from the spares department
under part no. 3594262.
Figure 6-1: Modified Castor, S 2xx
6.2
Dirty Dustbag Compartment (S 27x and S 28x Only)
6.2.1
Dustbags, Old and New Versions
Possible cause:
The raised rim (Figure 6-2, Item 3) on the dustbag collar (Figure 6-2, Item 1)
may indent and deform the sealing ring on the dust guide (Figure 6-2, Item 2).
A dustbag without a raised rim on the collar (Figure 6-3, Item 1) can then not
form a tight seal on the deformed sealing ring (see caution symbol in Figure 63) of the dust guide (Figure 6-3, Item 2).
56
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 6-2: Dustbag with Raised Rim on Collar, S 27x and S 28x
Figure 6-3: Dustbag without Raised Rim on Collar, S 27x and S 28x
Remedy:
In both cases replace the dust guide sealing ring (part no. 3430580).
6.2.2
Modified Dustbag Holder
A check should be made to establish whether the modified holder with a catch
(Figure 6-4, Item 2) to hold the dustbag (Figure 6-4, Item 1) is installed. The
modified holder (part no. 3558641) prevents the dustbag from sliding out of
the holder when the compartment lid is closed.
57
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 6-4: Modified Dustbag Holder, S 27x and S 28x
6.3
Poor Suction Performance (S 27x and S 28x)
Possible cause:
Motor seal (Figure 6-5, Item 1) has slipped.
Remedy:
1. Unscrew the mounting panel and install the motor seal holder (Figure 6-5,
Item 2), part no. 3840800, onto the mounting panel (Figure 6-5, Item 3)
from below.
2. Carry out a test run.
Figure 6-5: S 27x and S 28x Motor Seal and Holder
58
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
6.5
Poor Blower Performance (S 27x and S 28x)
The blower feature can be improved by installing the blower plate (Figure 6-6,
Item 1), part no. 3061172.
1. Open the dust compartment lid, remove the Air Clean filter and install the
blower plate with its arrow pointing to the rear panel.
2. Before closing the dustbag compartment open the accessory compartment
lid.
3. Close the dustbag compartment and install the suction hose onto the
blower outlet in the accessory compartment.
4. After blowing has been completed, re-install the Air Clean filter.
Figure 6-6: Blower Plate for S 27x and S 28x
6.6
Dustbag Change Indicator (S 3xx)
The point at which the indicator shows that the dustbag should be changed
can be modified by turning the adjustment screw (Figure 6-7, Item 1) as
follows:
Counterclockwise: Indication to change the dustbag occurs earlier
Clockwise: Indication to change the dustbag occurs later
59
S 2xx, S 3xx & S 4xx Canister Vacuums
Technical Information
Figure 6-7: S 3xx Dustbag Change Indicator
6.7
Suction Power (S 3xx)
If the suction power is too low, the following should be carried out:
1.
2.
3.
4.
5.
6.
6.8
Set the power level to the highest setting.
Compare suction with and without the hose connected.
Check the hose, suction tube and attachment for blockages.
Check the dustbag is not caught between the casing pieces.
Check the motor protection filter and the exhaust filter.
Check that the seals in the motor compartment and at the exhaust filter are
seated correctly and undamaged.
Motor Does Not Operate (S 345i and S 445i)
Fault:
When the brushes are worn out, the appliance cannot be switched on.
Possible cause:
When the appliance is switched on, gate 1 on triac D1 is activated.
D1 becomes conductive.
Voltage is now applied to winding L1. As the brushes are worn, the voltage is
not applied to the motor but, via the mid tapping of L1, to “Control” on the
EDW 445 control module.
If the gate of D1 is activated and at the same time voltage is applied to the
“Control” measuring point, the electronic control module switches the
appliance off; see the wiring diagram.
Remedy:
Replace the brushes.
60