Trouble Shooting Guide
Washing Mchine
Model :DWM-7510,S
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SPIN MOTOR
BASKET SPIN
BELLOWS
WATER LEAKAGE
COUPLING DRUM
WASH TIMER
HOW TO REPLACE
THE EACH COMPONENT
1. STRUCTURE OF SPIN PART
IN ORDER TO HELP YOUR UNDERSTANDING OF 2-TUB WASHING MACHINE.
WE PREPARE SIMPLE STRUCTURE. IF YOU WANT TO KNOW MORE IMFORMATION,
PLEASE REFER TO SERVICE MAUNAL.
FIXTURE
BELLOWS
2. TROUBLE SHOOTING FOR EACH PROBLEM
2-1. SPIN MOTOR
1) PROBLEM AND CAUSE
① STICKING MOTOR SHAFT AND OILLESS METAL BEARINGS WHICH ARE IN
THE MOTOR INSIDE.
② COIL DAMAGE DUE TO THE WATER LEAKAGE, BECAUSE OF BELLOWS BROKEN.
③ LEAD WIRE SHORT, BECAUSE OF SHARP EDGE OF MOTOR CASE
2) IMPROVEMENT POINT
RELATED NUMBER ① AND ③
- Change the Oilless metal
bearing from Fe to
Cu.
These are inside of Motor
- ADAPT NEW PART MADE
BY RUBBER IN ORDER TO
PROTECT THE WIRE FROM
SHARP EDGE
ADAPTING DATE : 98.09
- ADAPT TUBE AND CHANGE THE
WIRE FROM NORMAL GRADE TO UL
FOR ②
CHANGE THE STRUCTURE OF BELLOWS
- HEIGHT FROM 23mm TO 31mm
- CHANGE DATE : 98.08 LOT
- REMAKE THE FIXTURE BELLOWS
BELLOWS
FIXTURE
AFTER
BELLOWS
BEFORE
3) REMARKS
IF THIS KIND OF PROBLEM HAPPENED, YOU'D BETTER REPLACE
IMPROVED SPIN MOTOR AND BELLOWS TOGETHER.
IN ORDER TO PREVENT THIS KIND OF PROBLEM OCCURING AGAIN.
4) CODE NUMBER FOR NEW PARTS
REFER TO SERVICE MANUAL.
2-2. BASKET SPIN
1) PROBLEM
① DEFORMATION AND FRICTION NOISE
② DISMATCHING OF CENTER LINE(LEAN OF BASKET SPIN)
2) CAUSE
① LACK OF BELLOWS FUNCTION
② MAL-MANUFACTURING OF COUPLING DRUM
③ INSUFFICIENT OF BASKET SPIN STRENGTH
3) IMPROVEMENT POINT
FOR ①
BE SAME OF ② WITH SPIN MOTOR AND CHANGE THE MATERIAL OF DAMPER
FOR ②, ③
DAMPE
- CHANGE THE DAMPER MATERIAL
FROM CR TO NBR
- CHANGING DATE : 98.07 LOT
- CHANGE THE BASKET SPIN ROUND
FROM R2.5 TO R3.0
- CHANGING DATE : 98.08 LOT
- REMAKE THE COUPLING DRUM
- ADAPTED DATE : 98.08 LOT
4) REMARKS
IF THIS KIND OF PROBLEM HAPPENED, YOU'D BETTER REPLACE
IMPROVED SPIN BASKET, BELLOWS, DAMPER,
COUPLING DRUM ALLTOGETHER. IN ORDER TO PREVENT
THIS KIND OF PROBLEMOCCURING AGAIN.
2-3. BELLOWS
1) PROBLEM AND CAUSE
BROKEN BECAUSE OF FRICTION BETWEEN BELLOWS AND FIXTURE BELLOWS
2) IMPROVEMENT POINT
ALREADY MENTIONED ABOVE, PLEASE REFER TO SPIN MOTOR AND BASKET SPIN
2-4. WATER LEAKAGE
1) CAUSE
DUE TO BELLOWS BROKEN
2) IMPROVED POINT
ALREADY MENTIONED ABOVE, PLEASE REFER TO SPIN MOTOR AND BASKET SPIN
2-5. COUPLING DRUM
1) PROBLEM AND CAUSE
IT'S NOT ALIGN WITH MOTOR SHAFT AND BASKET SPIN, BECAUSE OF WORN OUT
DIE CASTING TOOL
2) IMPROVED POINT
REMAKE THE DIE CASTING TOOL AND CONTROL THE MANUFACTURING ALLOWANCE
2-6. WASH TIMER
1) PROBLEM AND CAUSE
IT'S NOT WORKING BECAUSE OF FRICTION OF PANEL AND KNOB,
AND MAL-FUNCTION OF WASH TIMER
2) IMPROVED POINT
PANEL
FRICTION OF PANEL AND KNOB
UPWARD
KNOB
MOVE THE PIN 1.5mm UPWARD
* REFERENCE*
WE HAD ALREADY FINISHED ENDURANCE TEST REGARDING TO ABOVE PROBLEM
DEPEND ON DAEWOO INTRA-STANDARD. THEREFORE WE HAVE CONFIDENCE FOR
RELIABILITY ABOUT THESE KINDS OF PROBLEM
3. HOW TO REPLACE THE EACH COMPONENT
X
P
S
3-1. BELLOWS ASS'Y AND BASKET SPIN
DISASSEMBLE
THE SCREW 5
DISASSEMBLE
THE SCREW 4
1) DISASSEMBLE THE SCREW AND THEN 2) THE STATE AFTER DOING 1)
GET RID OF PLATE T
3) DISASSEMBLE THE BOLT HEX USED FI
THE COUPLING DRUM FOLLOWING UPWARD
5) DISASSEMBLING STATE OF BASKET S
AND THEN DISASSEMBLE THE BELLOW
BY PURSING THE SNAP FIT OF FIXTURE
BELLOWS.
* ASSEMBLING IS REVERSING OF THE DISASSEMBLING
4) DISASSEMBLE THE BASKET SPIN
6) ASSEMBLE THE NEW BELLOWS ASS'Y
WITH BOND
3-2. SPIN MOTOR, COUPLING DRUM, DAMPER
DISASSEMBLE
THE SCREW 5
DISASSEMBLE
THE SCREW 4
1) DISASSEMBLE THE SCREW AND THEN 2) THE STATE AFTER DOING 1)
GET RID OF PLATE T
LINK
WIRE
3) DISCONNECTING THE HARNESS 4) DISASSEMBLE THE BOLT HEX USED FIX
AND THEN DISASSEMBLE LINK WIRE THE COUPLING DRUM AND V-BELT
COUPLIN
G
DRUM FIX
SPIN MOTOR
FIX BOLT
3 EACH
5) AND THEN, AFTER STATE WITHOUT 6) AFTER DISASSEMBLING TUB
BASKET SPIN NEXT DISASSEMBLE THE COUPLING
DRUM FROM MOTOR
AND THEN DISASSEMBLE SPIN MOTOR
T
SCREW OF FIXING
BRACKET SPIN
MOTOR 4 EACH
DAMPER ASS'Y
4 EACH
7) AFTER DISASSEMBLING SPIN MOTOR 8) NEXT STATE AFTER DISASSEMBLING
AND THEN DISASSEMBLIE THE BRACKE
SPIN MOTOR AND THEN DISASSEMBLE DAMPER
BRACKET SPIN MOTOR
ASS'Y
* ASSEMBLING IS REVERSING OF
THE DISASSEMBLING
9) THE STATE OF ALL COMPONENT DISASSEMBLED
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