Daewoo RC-450 User manual

Service Manual
Vacuum Cleaner
Model : RC-450
DAEWOO ELECTRONICS CO., LTD.
OVERSEAS SERVICE DEPT.

2
1. SPECIFICATION
MODEL RC-450
RATED VOLTAGE/FREQUENCY AC 230V/50Hz
INPUT WATT MAX 1300W (CEE 1100W)
WEIGHT(BODY) 5.2kg
DIMENSION(LXHXD) 376X231X286m
CORD LENGTH 6m
POWER CONTROL ELECTRONICS VARIABLE
DUST METER MECHANICAL
HOSE CURRENT 1.8m
EXTENSION PIPE 2 STEELS
NOZZLE WIDE SUCTION BRUSH, DUSTING BRUSH,
CREVICE TOOL

3
2. DIAGRAM
2-1. WIRING DIAGRAM
2-2. CIRCUIT DIAGRAM
R4
C2
C3 C4 C5
T2
T1 G
AC 230V/50Hz
THERMOSTAT
TRIAC
DIAC
R3
S/V
R1C1
MOTOR

4
3. CAUSE OF TROUBLE AND COUNTERMEASURE
¡¡ ÿ
CAUTION : BE CAREFUL WHEN BREAKING UP THE CORD REEL. THE REEL SPRING MAY SPRING OUT OF THE SPRING COVER.
TROUBLE COUNTERMEASURE
SUCTION POWER IS
WEAK
CAUSE
REPLACE IT
FILTER BAG(PAPER OR CLOTH) IS
FULL WITH DUST
CLOGGING OR TEAR IN HOSE
DEFECTIVE MOTOR
CHANGE IT WITH NEW ONE
REMOVE OBSTACLE OR
REPLACE THE HOSE
REPLACE THE MOTOR
CLEANER DOES NOT WORK
BREAKING IN POWER CORD
(AT BLADE TIP OR ROOT OF PLUG)
BREAKING OF CONNECTIONS IN
HOSE ASSEMBLY
DEFECTIVE SLIDE VOLUME LOCATED
IN HOSE HANDLE
DEFECTIVE PCB ASSEMBLY
BREAKING OF CONNECTIONS OR
POOR CONTACTS IN CORD REEL
ASSEMBLY
DEFECTIVE MOTOR
BREAKING OF CONNECTIONS IN BODY
ASSEMBLY
DEFECTIVE SWITCH
REPLACE THE POWER
CORD
REPAIR
REPLACE IT
REPLACE IT
REPAIR
REPLACE IT
REPAIR
REPLACE IT
MOTOR DOES NOT STOP
EVEN IF SWITCH OFF DEFECTIVE PCB ASSEMBLY
REPLACE IT
MOTOR DOES NOT STOP
EVEN IF SWITCH OFF DEFECTIVE PCB ASSEMBLY
REPLACE IT
REPAIR
POWER CORD IS NOT
WOUND UP
BROKEN REEL SPRING OF CORD REEL
POWER CORD BROKE AWAY FROM THE BOBBIN
REPLACE THE ROLLER
BRAKE
REPAIR
POWER CORD DOES NOT
STOP AT AN ARBITRARY
POSITION
ABRASION OF THE ROLLER BRAKE OF
CORD REEL
LEVER SPRING BROKE AWAY FROM
THE CORD REEL BRACKET

5
4. DISASSEMBLING
1. Open the dust cover. While inserting the tip of the
[-] screwdriver into the slit, push it upward.
2. Close the dust cover and remove the middle
cover.
3. Unscrew the 6 [+] screws which lock the body
and the body cover.
4. Remove the protector and unscrew the 2 [+]
screws.

6
5. EXPLODED VIEW AND PARTS LIST
5-1. BODY ASSEMBLY(3620406800)
gi
w
y
e
0
8
9
o
u
432 5
tr
qf
1
6
7
ad
ps

7
BODY ASSEMBLY LIST(3620406800)
NO PART NAME CODE SPEC Q’TY
1 BODY 3620405500 ABS KR-2870 1
2 BRACKET ROLLER 3620601500 PP 1
3 ROLLER FRONT 3624703200 SBS+PP 1
4 SHAFT ROLLER 3624901000 SWRM 1
5 SCREW TAPPING 7128401212 T2S WAS 4X12 MFZN BK 1
6 BUSHING ROLLER 3620601300 NYLON6 2
7 ROLLER BACK 3624702900 PP+PVC-S 2
8 HOLDER FILTER 3623003800 NYLON 66 1
9 SPRING HOLDER 3625105400 SUS304-H, T=0.2 1
10 PACKING SOCKET 3624004500 NR 1
11 TERMINAL AS 3628708400 TERMINAL+WIRE 1
12 SCREW TAPPING 7121400811 T2S PAN 4X8 MFZN 1
13 SOCKET 3620405600 ABS KR-2870 1
14 CASE TERMINAL 3621101700 PC, COVER 2
15 CASE TERMINAL 3621101800 PC, BODY 2
16 SCREW TAPPING 7121401411 T2S PAN 4X14 MFZN 3
17 GASKET 3622300200 SBS 50DEG 1
18 PROTECTOR 3628300700 PVC-S 1
19 FILTER 3621903800 PU FOAM, INH 1
20 FILTER EXHUST 3621903900 POLYESTER + TAPE 1
21 FILTER EXHUST 3621904000 PP FIBER 1
22 CASE FILTER 3621102700 ABS KR-2870 1
23 ABSORBER SOUND 3620108200 FELT T=3.0 1
24 PCB POWER CONTROL AS 3624306700 RC-450 230/50 1
25 FILTER BAG 3621900900 2-LAYER 1

8
5-2. COVER ASSEMBLY(3621417700)
4
5
oy
u
i
1
36
t
r
e
wq 0 9 7 8
222

9
COVER ASSEMBLY LIST(3621417700)
NO PART NAME CODE SPEC Q’TY
1 COVER BODY 3621415850 ABS + PAINTING 1
2 PACKING HOLE 3624004600 EVA FOAM 2
3 COVER DUST 3621415950 ABS + PAINTING 1
4 CLAMP DC 3621201950 ABS + CR PLATED 1
5 SPRING 3625105600 HSW3 1
6 HANDLE 3622601250 ABS + PAINTING 1
7 ELBOW 3627100210 GPPS 1
8 RING-O 3624600100 EPDM 1
9 SPRING 3625105700 SUS304,DM(103MM) 1
10 DUST METER 3629700100 ABS 1
11 DUST METER 4560F23030 ABS 1
12 PACKING 3624000410 S-PVC 1
13 PACKING DM (O-RING) 3624004400 NR 1
14 COVER DM 3621416100 ABS KR-2870 1
15 SCREW TAPPING 7121401411 T2S PAN 4X14 MFZN 2
16 BUTTON CR 3626603550 ABS + CR PLATED 1
17 SPRING 3625103400 HSW3 CR BUTTON 1
18 SCREW TAPPING 7121402011 T2S PAN 4X20 MFZN 6
19 COVER MIDDLE 3621416050 ABS + PAINTING 1

10
5-3. MOTOR ASSEMBLY(3620009500)
19273
456
8
MOTOR ASSEMBLY LIST(3620009500)
NO PART NAME CODE SPEC Q’TY
1 PACKING MOTOR 3624005200 NR+EPDM 1
2 ABSORBER SOUND 3620105900 PU FOAM T=20 1
3 CASE MOTOR REAR 3621102800 ABS KR-2870 1
4 FILTER 3621904500 POLYESTER + TAPE 1
5 ABSORBER SOUND 3620108300 FELT T=3.0 1
6 ABSORBER SOUND 3620108400 FELT T=3.0 1
7 GUIDE AIR 3622501300 PC LEXAN 500 1
8 MOUNT MOTOR 3620903200 NR 1
9 MOTOR VC 3962511210 230V 1200W DMI(F) 1

11
5-4. CORD REEL ASSEMBLY(3629506000)
1
23
4
5
5
6
7
9
0
qw
er
p
a
u
i
o
y
0
a
q
w

12
CORD REEL ASSEMBLY LIST(3629506000)
NO PART NAME CODE SPEC Q’TY
1 BOBBIN 4569C35011 ABS 1
2 TERMINAL 4565A36024 C2600P-1/2H T0.3 1
3 TERMINAL 4565A36034 C2600P-1/2H T0.3 1
4 CORD POWER 3621302500 250V16A H05VVH2F TA-17 1
5 SUPPORTER TERMINAL 3625300100 PC LEXAN 500 1
6 SCREW TAPPING 7121401211 T2S PAN 4X12 MFZN 1
7 SHAFT CR 4569C35051 PC LEAXAN 121 1
8 SPRING AS 3625102010 SUS301-EH+COVER,4710MM 1
9 SCREW TAPPING 7121300811 T2S PAN 3X8 MFZN 2
10 BRACKET CR 3620601410 PC 1
11 HARNESS 3622709710 ASSY 1
12 HARNESS 3622709810 ASSY 1
13 HARNESS 3622709910 ASSY 1
14 THERMOSTAT 3629001400 KI T85 1
15 SCREW TAPPING 7121300811 T2S PAN 3X8 MFZN 1
16 SCREW TAPPING 7121400611 T2S PAN 4X6 MFZN 2
17 SCREW TAPPING 7121401411 T2S PAN 4X14 MFZN 1
18 LEVER CR 3623701900 ABS KR-2870 1
19 SPRING 3625103200 HSW3 1
20 FRAME STOPPER 4565A35070 POLY ACETAL (POM) 1
21 STOPPER CR 4569C35082 NBR 1

13
5-5. HOSE ASSEMBLY(3623206410)
dfpa o f
s
tu
i
ty
y
ewq 0 8
5
4
3
1
6
2
8
9
7

14
HOSE ASSEMBLY LIST(3623206410)
NO PART NAME CODE SPEC Q’TY
1 ADAPTER PIPE 3629101310 PC 1
2 SPRING 3625102900 HSW3 1
3 TERMINAL AS 3628705700 TERMINAL+WIRE+RECEP 2
4 CLAMP ADAPTER 3621200900 ABS 1
5 COVER ADAPTER 3621405960 PC(805) 1
6 SCREW TAPPING 7121300811 T2S PAN 3X8 MFZN 1
7 HOSE 3623204210 PVC-S/SWRS 1.8M 2 LAYE 1
8 TAPE VINYL 2TU00019BK 19MM BLACK 0.5
9 COVER HOSE 4565A70040 PP 2
10 ADAPTER PIPE 3629100410 PC 1
11 FRAME TERMINAL AS 3622200710 ASSY 1
12 FRAME TERMINAL 3622200610 PC 1
13 PACKING PIPE 3624002400 NBR 1
14 WAX VASELINE 2291140301 VASELINE 0.002
15 PIPE HOSE 3624403810 PC 1
16 TERMINAL AS 3628704600 TERMINAL+WIRE+RECEP 1
17 COVER TERMINAL 3621409010 PC 1
18 SCREW TAPPING 7121301011 T2S PAN 3X10 MFZN 1
19 PCB SLIDE VOLUME AS 3624303900 200K HOSE AS 1
20 SCREW TAPPING 7121300811 T2S PAN 3X8 MFZN 2
21 PLATE 3624500200 ABS 1
22 KNOB 3623400100 PC 1
23 COVER PIPE 3621409700 ABS KR-2870 1
24 SCREW TAPPING 7121301211 T2S PAN 3X12 MFZN 2

15
5-6. BRUSH ASSEMBLY(3629305100)
8
7
9
0
3
2
1
5
6
4
q

16
BRUSH ASSEMBLY LIST(3629305100)
NO PART NAME CODE SPEC Q’TY
1 BODY BRUSH 3620403500 ABS 1
2 SHAFT ROLLER 3624900900 PA 2
3 ROLLER-F BRUSH 3624703100 SBS 2
4 PICKER LITTER 3627000400 ABS+NYLON 1
5 PICKER LITTER 3627000500 ABS+NYLON 1
6 ROLLER-B BRUSH 3624703700 SBS 2
7 NECK BRUSH 3628001700 PP 1
8 PIPE BRUSH 3624408000 PP 1
9 CAP BRUSH 3620902500 ABS+MFCR 1
10 COVER BRUSH 3621411100 ABS+PVC 1
11 SCREW TAPPING 7121401212 T2S PAN 4X12 MFZN BK 5

17
5-7. PIPE ASSEMBLY(3624404500)
4
3
5
21
175mm
BODY ASSEMBLY LIST(3620406800)
NO PART NAME CODE SPEC Q’TY
1 PIPE STEEL 3624403500 HDPE+SPC T=0.7 2
2 CUFF 3626800300 HDPE 2
3 HOLDER PIPE 3623001900 ABS 1
4 SPACER 3625000400 EVA FOAM T=1.5 1
5 SCREW TAPPING 7121401411 T2S PAN 4X14 MFZN 1