Tub - Electrolux Diva Service Manual

2.3 TUB

The tub assembly consists essentially of a stainless steel tub and a series of sub-assemblies which
form the load-bearing structure of the dishwasher.
Two basic tubs have been designed, to suit the type of drying to be performed by the dishwasher.
- The difference between the two lies in the presence or absence of a hole (*) in the rear section of
the tub ceiling, to which the drying duct can be fitted.
- Other differences concern the type of soundproofing, which depends on the number and thickness
of the tar-coated panels.
2.3.1 STRUCTURAL CHARACTERISTICS
The tub is produced by press-forming using steel.
- Side and rear panels produced in a single production cycle (pressing, drilling, forming)
- Tub ceiling (pressing, drilling).
- Tub bottom (pressing, drilling).
The side and rear panels are then crimped to the ceiling and the bottom of the tub.
A silicone-based adhesive is inserted between the parts to provide a seal.
Two ducts in stainless steel (in the shape of an inverted "L"), welded around the internal perimeter of
the front section of the tub to the ceiling and the two sides, are used as a seat for the perimetral door
seal.
The tub is soundproofed by applying tar-coated panels, which are hot-glued on the external sides (all
or some of the sides). These panels are of different thicknesses, according to the level of noise
generated by the appliance.
2.3.2 STRUCTURAL SUB-ASSEMBLIES
The structure of the tub is completed by the installation of a
number of additional components
Lateral uprights (A), which support the tub on all four sides.
Three of these (the two rear uprights and the RH lateral upright)
are inserted into the base.
- Two rear
"clinching" system (cold deformation welding).
- Two front uprights, secured manually using three screws.
Rear cross-member (B), in plastic, secured to the lateral uprights
by two screws.
- The rear cross-member is a structural support for the side
panels and work-top, and also supports the various hoses.
Front cross-member (C) in enamelled sheet metal, pressure-
fitted to the two lateral uprights and secured using two screws.
- The front cross-member is a structural support for the side
panels and work-top, and also for the door closure
mechanism.
2.3.2.1 COMPONENTS BUILT INTO THE TUB
The tub is then fitted with a number of functional components.
Externally:
- On either side, the four supports for the upper basket guides.
- On the RH side, the vertical manifold which ducts water to the upper spray arm.
- On the LH side, the water fill tank.
- On the upper side, the drying duct and (if featured) the fan.
- On the bottom, the sump assembly and the water softening system, if featured.
Internally:
- On either side, the two guides in which the upper basket slides.
- At the rear, the horizontal manifold which ducts water to the upper spray arm.
SOI/TD - PR
uprights, produced automatically using
14/32
C
*
the
B
A
599 38 72-30