P.28
4.13.2 Drain pump
As for the up-drainage washing machine, the drum
washing machine need drain pump to provide the
force. The drain pump head is generally 1~1.5m,
tonnage is 24L/min.
Drain pump is made up of motor, body, impeller,
blower fans. Impeller is derived by the motor to
run and drain; the blower fans disperse the heat
produced by motor.
In principle, the drain pump has two categories
of permanent-magnet pump and cover pole pump.
And drum washing machine usually use the permanent-magnet pump now.
The permanent-magnet pump uses the permanent-magnet motor and its winding
resistance DC is about
170
Ω.
And its resistance usually can be measured by
millimeters. If resistance infinite, it can be concluded its opening.
Actually, the common faults of drain pump was mainly that impeller broken flannel or a
hard object jammed or the hard object interrupted by the impeller, and this will cause
drain pump can not work. the drainage pump will issued swoosh at the end of draining
due to the some water can not be completely discharged from the machine, it is a normal
phenomenon.
Due to the internal structure of a cavity, filter components upper and lower body by
ultrasonic welding.
The filter kit main role is Filtering out clastic produced by washing. If don’t clean it
timely, it will cause many fault such as pipe plug, Drainage difficulties.
Filters should be washed once a month generally. Remove it before draining water and
then put a basin to avoid the remaining water flowing on the
floor. Mold cleaning filters carved steps and attention to the
matter in the back of the trap door. During installing it again,
the filter should be tightened, otherwise easy leakage.
4.14 Door kit
Door kit is made up of outer door, inner door, door glass, door
handle, door hook, door hook spring, hook pin, hinge, hinge
cap and screw.
The material of outer door is Acrylonitrile Butadiene Styrene
(ABS) which have the good anti-aging and anti- ultraviolet
properties, and it is elegant generous.
The material of inner door is the improved PP material.
Door glass is not only good high temperature and impact
resistance properties of hot and cold, but also a high intensity.
Door handle is embedded or external.
When open the door without loosening after assembled door
handle, door hook, door hook spring, hook pin.
4.OVERVIEW OF MAIN COMPONENTS
