Daewoo DWF-178M, Service Manual

Page: 10 / 42

FEATURE AND TECHNICAL EXPLANATION 9
Contact of safety switch
Lid opening
Contact lever A
Normal (ON) Position of
unbalanced load (OFF)
AUTOMATIC UNBALANCE ADJUSTMENT
CIRCULATING-WATER COURSE AND LINT FILTER
The alarm finished when you close the lid after opening
it. Check the unbalance of the wash load and the
installation condition.
Lid closing
NOTES
Filter
Tub
Outer tub
Water
channel
Pulsator
This system is to prevent abnormal vibration during intermittent spin and spin process.
FUNCTIONAL PRINCIPLE
1
When the lid is closed, the safety switch
contact is “ON” position.
2
In case that wash loads get uneven during
spin, the outer tub hits the safety switch
due to the serious vibration, and the spin
process is interrupted.
3
In case that P.C.B. ASS’Y gets “OFF”
signal from the safety switch, spin process
are stopped and rinse process is started
automatically by P.C.B. ASS’Y.
4
If the safety switch is operated due to the
unbalance of the tub, the program is
stopped and the alarm is given.
CIRCULATING-WATER
The washing and rinsing effects have been
improved by adopting the water system in
which water in the tub is circulated in a
designed pattern.
When the pulsator rotates during the washing
or rinsing process, the water below the
pulsator fans creates a water currents as
shown in figure.
The water is then discharged from the upper
part of the tub through the water channel.
About 40 L/min. water is circulated at the ‘high’
water level, standard wash load and standard
water currents.