Sears 721.24195S, VTCB423HTU.CLSESRS Field Manual

Model

Language

Page

Size(W*H)

Designer

Designer

Confirm

Color(cover/body)

Description

Date

No. Date

Chage Record

Change content

ECO No.

1

2

3

4

5

6

7

8

9

Weight 100g

2007.07.30

VTCB423HTU.CLSESRS
English

26

3828FI9002W

1/1

150×220(mm)

Shi Pengfei

Service manual

Material

Part No.

DIVISION 20

BASIC FIELD MANUAL

FOR

CANISTER VACUUM CLEANER

MODEL 721.24195S

MODEL 721.24195S

AUGUST, 2007

2

FOREWORD

1. SAFETY PRECAUTIONS ................................................................................3

2. CAUTIONS.......................................................................................................3

3. DESCRIPTION/SPECIFICATIONS

3.1 MODEL 721.24195S...................................................................................4

4. DISASSEMBLY.............................................................................................5-8

5. TROUBLE SHOOTING...............................................................................9-11

6. BLOCK DIAGRAM/SCHEMATIC DIAGRAM/CIRCUIT DIAGRAM

6.1 MODEL 721.24195S.................................................................................12

7. POWER AND CONTROL CIRCUIT BOARD

7.1 MODEL 721.24195S.................................................................................13

8. EXPLODED VIEW/REPLACEMENT PARTS LIST

8.1 MODEL 721.24195S...........................................................................14~20

BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS" IN
THIS MANUAL.

MECHANICAL SERVICE INFORMATION

TABLE OF CONTENTS

MODEL 721.24195S

MODEL 721.24195S

3

1. SAFETY PRECAUTIONS

2. CAUTIONS

BEFORE OPERATING THIS VACUUM CLEANER, READ THIS SERVICE MANUAL THOROUGHLY, AND

OBSERVE EACH POINT CAREFULLY.

BEFORE ATTEMPTING TO SERVICE OR ADJUST ANY PART OF THE VACUUM CLEANER, DISCONNECT
THE ELECTRICAL POWER SUPPLY CORD FROM THE WALL OUT

1. Motor exchange

1) Separate the Body Cover and Body Base by
unfastening the screws.

2) Disconnect the lead wires.

3) Lift the old motor and replace it with a new one.

2. In case of exchanging other parts, refer to the
exploded view.

1. Change the paper bag in case the
indicatormoves toward red.

1) If the dust bag is full, intake power will be reduced.

2) When the dust bag is full of dust, pull out the dust bag

from the bag mount.

2. Filter

1) The filter is composed of a clean filter, a exhaust filter

and filter bag.

2) Never use the vacuum cleaner without filters.

It may harm to the motor.

NOTE : Re-use of the clean filter.

• Never wash the filter in a washing machine or in a

dishwasher.

• Never use hot water for washing the filter.

• Re-use the filter after drying it completely in the shade.

• Do not dry near fire or direct sun ray.

3. Dust indicator

Dust indicator shows you red color when the filter is full of
dust.
Then, change the bag with new one.

4. Avoid suction such materials as :

1) Liquid or wet dust :

Clog the ventilation holes and reduces the intake
power significantly and harms the motor.

2) Inflammable liquids such as benzene, alcohol or

solvents.

3) Burning objects such as cigarette butts.

4) Bulky objects such as vinyl, paper etc.

5) Sharp objects such as needles, pins, metal or glass

particles etc.

5. Attachments

• Nozzle : for cleaning wooden floor, the room floor and
carpet.

• Brush/Crevice Tool(without brush): for cleaning any
crevice, inside corners of window frames.(However, do
not use the crevice tool more than 20 minutes.)
Brush/Crevice Tool (with brush): for delicate vacuuming
of fabrics on the furniture, curtains, etc.

• Upholstery Nozzle : for vacuuming the dust on the
upholstery.

6. Close supervision is necessary when this
vacuum cleaner is used by or near children.
Children's carelessness may cause damage to
the cleaner or injure persons.

7. Air exhausted from the vacuum cleaner is
normally warm. But if extraordinarily hot air is
exhausted, check if the extension pipe, hose or
dust bag is clogged or not.

8. Electric shock could occur if used outdoors or
on wet surfaces.

MODEL 721.24195S

MODEL 721.24195S

4

3. DESCRIPTION/SPECIFICATIONS

Slide Switch

Handle Button

Telescopic
Wand

Wand
Button

Hose

Fitting Hook

Power Cord
(Not Shown)

Cord Reel
Button

Suction Inlet

Latch

Performance Indicator

Crevice Tool

Dusting/Upholstery Tool

Air-Turbine
Brush Nozzle

Pile Adjustment

3.1 MODEL 721.24195S

DESCRIPTION

SPECIFICATIONS

• POWER SOURCE: ON RATING PLATE

• POWER CONTROL:

MAIN: SLIDE CONTROL ON HANDLE

• CAPACITY: 2.5

l

• CORD LENGTH: 5.3 m

• HOSE LENGTH: 1.5 m

• NET WEIGHT: 4.7 kg

• PACKING WEIGHT: 9.2 kg

• NET DIMENSION: 296 x 369 x 248 (W x D x H)mm

• PACKING DIMENSION: 330 x 579 x 330(W x D x H)mm

• ATTACHMENTS

FLEXIBLE HOSE ASSY ............................................1EA

TELESCOPIC WAND ................................................1EA

AIR-TURBINE BRUSH NOZZLE ...............................1EA

DUSTING/UPHOLSTERY TOOL ...............................1EA

CREVICE TOOL ........................................................1EA

A

TTACHMENTS

• Almost all the parts of this vacuum cleaner can be
assembled with a screw driver and each connecting
component easily fits each other.
Disassemble one by one referring to the exploded view.

• If possible, don’t disassemble except for the necessary
parts. It is not necessary to disassemble the parts that are
not detailed in the exploded view.

4.1 Filter Cover Assembly Replacement

1) Grasp body base and open filter cover.

4.2 Indicator Assembly Replacement

4.3 Body Cover Assembly Replacement

1) Open the filter cover and remove the two screws and
remove the four screws fastening the body base.

2) Lift body cover in the direction of the arrow.

4. DISASSEMBLY

NOTE: Before attempting to service or adjust any part of the vacuum cleaner, disconnect the electrical power supply cord from

the wall outlet.

5

MODEL 721.24195S

4.4 P.W.B ASS’Y Replacement.

1) Lift the P.W.B ASS’Y in the direction of the arrow.

4.5 Motor Assembly Replacement

• Lift the motor assembly in direction of the arrow after
stripping off the lead wires.

4.6 Cord reel assembly replacement

1) Lift the cord reel assembly from the body base in direction
of the arrow.

2) Strip off the lead wires.

MODEL 721.24195S

6

4.7 Belt Changing and Brush Cleaning

• Disconnect cleaner from electrical outlet. Check and
remove hair, string and lint build-up frequently in the Air­Tubine Brush Nozzle brush and brush support areas. If
build-up becomes emcessive, disconnect Air-Tubine
Brush Nozzle from Telescopic wand.

TO REMOVE BELT

1) Turn Air-Tubine Brush Nozzle upside down.

2) Unscrew the four Air-Tubine Brush Nozzle cover screws.

3) Turn Air-Tubine Brush Nozzle rear side up and tilt cover

forward from back until front snaps free.

4) Carefully insert and lift screwdriver at each brush support
to free brush from base.

5) Remove worn belt.

6) Slide brush supports off to check and clean brush support
areas. See PARTS LIST for picture of complete brush
assembly.

Wheel

Base

Brush Support

MODEL 721.24195S

MODEL 721.24195S

7

TO REPLACE BELT:

1) Install brush supports onto brush.

2) Install new belt in belt groove on the brush, then over the
fan shaft. Be sure belt is between the belt guards.

3) Insert each support into its base slot.

4) Push cover and base together.

8

MODEL 721.24195S

Brush

Brush support

Belt
Guard

Belt Groove

Belt

Fan Shaft

9

MODEL 721.24195S

5. TROUBLE SHOOTING

SOLUTIONCAUSE

Check the power source

CHECKING

Poor plug insertion

Power cord cut

Interior lead wire cut

Motor(stator armature) coil cut
or damaged

Poor contact carbon brush
defaced

Motor armature cut

Ball bearing defacement

Impeller hindrance
(Caused by foreign matters)

Insert again

Repair or exchange

Exchange the lead wire

Exchange the motor

Exchange or repair

Poor switch contact point Exchange the switch

Exchange the motor

Exchange the motor

Remove the foreign matters

Normal

1) SWITCH ON BUT MOTOR DOSE NOT RUN.

2) SWITCH ON, MOTOR DOES NOT RUN BUT BUZZES.

10

MODEL 721.24195S

Poor connection

Poor switch

Carbon brush defaced

Motor armature cut

Foreign matters attached to
the impeller

Low voltage

Hose and extension wands are
clogged with foreign matters

Filter bag or cloth bag is filled
with inhaled foreign matters

Repair

Exchange the switch

Exchange the carbon brush
or the motor

Exchange the motor

Remove the foreign matters

Inquire to the power utility
company

Remove the foreign matters
in the hose or extension wands

Low rotation speed

Motor turns normally,
but suction power is weak

Rotating switch is on low
mode

Rotate it with clock-wise so
power is increasd

Remove the foreign matters
or exchange the filter bag or
clean the cloth bag

3) SWITCH OFF BUT MOTOR RUNS.

4) WEAK SUCTION POWER

11

MODEL 721.24195S

Poor cord, lead wire

Poor carbon brush rectified

Poor electric connector
or receiver

Exchange cord, lead wire

Exchange the carbon brush
or the motor

Repair the electric connector
or receiver

Poor capacitor

Exchange the capacitor

Bent connection parts

Poor connection
(Caused by foreign matters)

Exchange the parts

Remove the foreign matters
and reconnect

Loose parts

Unbalanced motor assembly

Foreign matters are attached
to the impeller

Poor carbon brush rectification

Secure firmly

Exchange or repair the motor

Remove the foreign matters

Exchange the carbon brush
or the motor

Armature is cut or foreign
matters attached

Exchange motor
Remove foreign matters

5) VIBRATION NOISES

6) RADIO, TV RECEPTION DISTURBANCE

7) IMPROPER TUBE OR NOZZLE CONNECTION

12

MODEL 721.24195S

6.BLOCK DIAGRAM/SCHEMATIC DIAGRAM/CIRCUIT DIAGRAM

6.1 MODEL 721.24195S

WIRING DIA

GRAM

SCHEMATIC DIAGRAM

WH

BL

BL

BK

BL

BR

TS

P.W.B. ASS'Y

MOTOR

C/REEL ASS'Y

BR

BL

SLIDE VOLUME S/W

FLEXIBLE HOSE ASS'Y

M

C5

0.47 F
100V

C1

0.1 F
630V

R2
220
1/2W

R1

100

1/2W

R4

470

1/2W

Transformer

T.S

R12
470K

R12-1
470K

R7

10K

R11
10K

R10

100

R6

22K

IC1

Opto-triac

TLP762

16

4

G

SS

_

+

T1

TRIAC

T2

2

VR1

VR1

20K

Q2

A1015

D5

1N4148

Q1

C3198

BD1

DF01M

R8

1K

R9

100

13

7.POWER AND CONTROL CIRCUIT BOARD

7.1 MODEL 721.24195S

COMPONENT SIDE SOLDER SIDE

MODEL 721.24195S

14

MODEL 721.24195S

8.EXPLODED VIEW/REPLACEMENT PARTS LIST

1

2

12

3

5

15

17

13

11

10

14

16

4

8

6

7

9

8.1 MODEL 721.24195S
EXPLODES VIEW

MODEL 721.24195S

15

MODEL 721.24195S

34 39

40

26

18

31

32

27

29

33

21

30

19

20

22

23
28

25

24

MODEL 721.24195S

35

36

38

37

16

MODEL 721.24195S

MODEL 721.24195S

41

17

MODEL 721.24195S

MODEL 721.24195S

42

48

49

43

50

52

54

51

44
45

46

47

18

MODEL 721.24195S

MODEL 721.24195S

77

60

61

62

63

66

78

65

64

59

56

58

70

75

76

73

74

68

57

67
71

72

69

19

MODEL 721.24195S

LOCATION NO.

DESCRIPTIONPART NO. REMARKS

MODEL 721.24195S

REPLACEMENT PARTS LIST

1 3550FI1759K ACCESSORY COVER
2 3550FI1758H FILTER COVER
3 3550FI3868H INDICATOR COVER
4 3I23019L INDICATOR
5 1TPL0302418 SCREW 3*8
6 5203FI2071A DUST BRUSH ASS'Y
7 5058FI3593A CREVICE TOOL
8 4026FI3691G LATCH

9 4970FI4260A LATCH SPRING
10 3650FI2422A HANDLE
11 4370FI3678A HANDLE SHAFT
12 3550FI1757B BODY COVER
13 5020FI3806B CORD WINDING BUTTON
14 4I70024A CORD WINDING SPRING
15 4510FI2441A CORD WINDING LEVER
16 1TPL0402818 SCREW 4*12
17 5230FI3558B EXHAUST FILTER
18 3040FI1525A BODY BASE
19 3920FI1289A DUST SEAL PACKING
20 4661FI1008H WHEEL ASS'Y
21 *5231FI2390J DUST BAG
22 4480FI3752A FILTER SETTING HOOK
23 4I23017A FILTER SETTING HOOK SPRING
24 3550FI1756B FRONT COVER
25 3I23038G TERMINAL PLATE ASS'Y
26 3I23009L TERMINAL SUPPORTER
27 1TPL0402818 SCREW 4*12
28 4036FI3036A TERMINAL PACKING
29 5230FI3248F MOTOR SAFETY FILTER
30 4441FI3608D CASTER ASS'Y
31 4I22017A ROLLER
32 4I22094A ROLLER SHAFT
33 1TPL0403318 SCREW 4*20
34 6871FX2130G PWB ASS'Y
35 3920FI3766A MOTOR MOUNT PACKING
36 4681FI2373Y MOTOR
37 3940FI3646A ABSORBING SPONGE

38 3920FI3859A MOTOR SEAL PACKING
39 5230FI3557C EXHAUST FILTER

40 3940FI3311B EXHAUST SPONGE

MODEL 721.24195S

MODEL 721.24195S

REPLACEMENT PARTS LIST

LOCATION NO.

DESCRIPTIONPART NO. REMARKS

41
42

43
44

45
46

47
48

49
50

51
52

53
55

58

57

59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78

4687FI1468H CORD WINDING ASS'Y
AEM30953708 HOSE ASS’Y
4940FI3431A SLIDE KNOB
3500FI3617B SWITCH BOARD
1TPL0302416 SCREW 3*8
3550FI1511D HANDLE COVER
3650FI1474F GRIP HANDLE
4930FI2360T HOSE
5200FI2357M FITTING PIPE

FITTING HOOK

4I23028A HOOK SPRING
3I23013J
3550FI2358J F/PIPE COVER
5201FI2485A TELESCOPIC WAND

3040FI1502B NOZZLE BASE

5249FI1414E NOZZLE ASSEMBLY, TURBINE

3550FI1637B NOZZLE COVER
4940FI3736A PILE ADJUSTMENT
5200FI2497B SUCTION PIPE
1KZZFI3001B KEY
4930FI2452B SUCTION PIPE HOLDER
5901FI2001A FAN ASSEMBLY
4280FI3003A BEARING BALL
4581FI3001A ROLLER ASSY
4370FI3669A SHAFT
4581FI3002A ROLLER ASSY
4370FI3670A SHAFT
3550FI2540B COVER FLOW
4820FI2399B NOZZLE BUMPER
5882FI2001A SWEEPER
4766FI3709A FELT
3740FI3712A PROTECTOR(MECH)BELT
3740FI3711A PROTECTOR(MECH)BELT
4280FI3004A BEARING BALL
5973FI2001A BRUSH
4400FI3349A BELT
1TPL0403116 SCREW 4*16

20

21

MEMO

22

MEMO

23

MEMO

P/No.: 3828FI9002W