Crisper Drawer Rail Repair
This repair solves a persistent failure in design of the
Whirlpool
EB9SHKXVQ05 bottom-freezer refrigerator, an otherwise fine appliance.
Specifically, the refrigerator features two crisper drawers which are
supported by a polystyrene rail extending through the center of the
refrigeration compartment. (Parts
8 and
1
in the diagram below.)
This rail hangs from two molded tabs, which have
no support ribs or other reinforcement. When the drawers are stocked with
heavy fruits and vegetables and handled in a hungry manner, a typical
and forseeable design load, the front tab shears and the rail fails
catastrophically.
The rail part is known variously as P/N
WPW10671238,
W10671238,
67001057, and possibly other OEM
numbers as well, since the same virtually identical refrigerator is also sold
under brands other than Whirlpool. At the time of this writing, the part is
available for $25-40 through eBay and Amazon.com. Reviews are terrible, since
the replacement part is subject to the same failure mode.
I gambled on a replacement part, and it met the same fate after approximately
a year. Rather than throw good money after bad, I resolved to solve the
problem permanently.
First I found a piece of stainless steel plate, and milled it to the 1-1/2"
width of the broken tab. I milled off the top layer of plastic from the rail,
making a recess for the steel plate while leaving enough plastic to support
a bracket. I found that some offcut 3/8x1/2" aluminum bar stock fit almost
perfectly inside the structural ribs, to anchor the plate. Finally I used a
1/4" OD standoff as a pin through the center rail, for additional load
distribution. The lower cross-section of the rail was 1.23" wide; I got lucky
and found a .483" (31/64"?) standoff which exactly spanned the distance between
the two aluminum bars. I drilled, tapped and countersunk all components for
#6-32 stainless steel flat head screws.
The rail was reinstalled and performs exactly as designed, for purposes of the
owner if not the replacement parts market.
Some might eagerly tout 3D printed thermoplastic for this type of application.
I myself prefer metal.
Contact: reboots at g-cipher.net
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