Delfield McDonald's 400 Series Original User Manual page 16

Delfield
™
Maintenance, continued
Gasket Maintenance
Gaskets require regular cleaning to prevent mold and mildew
build up and also to keep the elasticity of the gasket. Gasket
cleaning can be done with the use of warm soapy water.
Avoid full strength cleaning products on gaskets as this can
cause them to become brittle and prevent proper seals. Also,
never use sharp tools or knives to scrape or clean the gasket
which could possibly tear the gasket and rip the bellows.
Gaskets can easily be replaced and do not require the use of
tools or authorized service persons. The gaskets are "Dart"
style and can be pulled out of the grove in the door and new
gaskets can be "pressed" back into place.
Doors/Hinges
Over time and with heavy use doors the hinges may become
loose. If it is noticed that the door is beginning to sag, it
may become necessary to tighten the screws that mount the
hinge brackets to the frame of the unit. If the doors are loose
or sagging this can cause the hinge to pull out of the frame
which may damage both the doors and the door hinges.
In some cases this can require qualified service agents or
maintenance personnel.
If it becomes necessary to adjust a door, follow these
instructions:
1. If the door needs lowering at the handle, use a 5/16"
wrench to loosen the hinge screws and install a spacer
outside of the hinge (see illustration 1). Tighten the
screws.
2. If the door needs to be higher at the handle, use a
5/16" wrench to loosen the hinge screws and install a
spacer inside of the hinge (see illustration 2). Tighten
the screws.
Illustration 1:
spacer outside
Drain Maintenance
Each unit has a drain located inside the unit which removes
the condensation from the evaporator coil and evaporates it
at an external condensate evaporator pan. Each drain can
become loose or disconnected from moving or bumping the
drain. If you notice excessive water accumulation on the
inside of the unit be sure the drain tube is connected from
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Illustration 2:
spacer inside
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the evaporator housing to the condensate evaporator drain
pan. If water is collected underneath the unit you may want
to check the condensate evaporator drain tube to be sure
it is still located inside the drain pan. The leveling of the
unit is important as the units are designed to drain properly
when on a level surface, if your floor is not level this can
also cause drain problems. Be sure all drain lines are free of
obstructions, typically food product is found blocking drain
lines causing water to back up and overflow the drain pans.
Service Alert
During normal operation the evaporator fan may cycle
and/or pulse independently of the compressor. Consult
the service manual or contact Technical Support at
1-800-733-8829 if you are unsure of the proper function.