no less than 1 hour without dishes or racks. The machine and
accessories should operate quietly, smoothly, and without undue
vibration. There should be no evidence of failure, overheating
of bearings, or leaks, and all controls should operate in a
positive, smooth, and efficient manner. The wash and rinse
water temperatures should be maintained as specified, and in
accordance with NFS standard No. 3.
4)
Performance Test: The dishwasher should be loaded to specified
capacity with soiled dishes, and operated for 10 consecutive
cycles. The wash and rinse water temperatures, pressures,and
flow rates and the wash water detergent concentration should be
determined
with use of the furnished thermometers, pressure
gages, detergent control meter and with calibrated instruments.
The test data shall be recorded and the average calibrated
water temperature, pressure and consumption, and the detergent
concentration shall be used to determine compliance with
contract specifications. The capacity of dishwasher(s) should
be measured to determine compliance with the contract
specifications.
B.
Pot and Pan Washing Machines:
1)
Symbols
Item Description
K8310 ........Washing Machine, Commercial, One Rack
K8320 ........Washing Machine, Commercial, Two Racks
2)
Visual Examination: Each pot and pan washing machine should be
examined for the following defects:
a)
Type, style and sizes not as specified. Size inadequate to
accommodate the quantity of pots and pans specified.
b)
Parts, components and assemblies not identical to permit
interchangeabiltity.
c)
Materials not as specified.
d)
Design not as specified.
e)
Washer does not operate as specified. Wash and rinse sprays
do not deliver water at the specified rates and pressures.
Signal device does not operate as specified.
f)
Noise level not as specified.
g)
Construction not as specified. Components missing or
damaged. Motor does not contain required amount of oil for
operation. Clearances not as specified. Legs not
adjustable. Cabinet not leak-proof and thickness less than
specified. Exterior finish other than specified.
h)
Wash and rinse compartment not as specified. Doors not
counter-weighted to permit easy opening and closing, and are
not leak-proof when closed and washer is in operation. Top
of compartment not vented.
i)
Spray jets and piping not adequate to meet performance
requirements. Nozzles and spray arms not readily removable
without use of tools.
j)
Plumbing not as specified. Obstructs access openings.
Water supply fittings not located above established water
level.
k)
Wash water tank water supply system not as specified.
Control valve missing or not installed as specified. Wash
water pump inadequate to meet performance and capacity
requirements. Strainer not removable and inadequate.
Strainer openings larger than specified. Pump not provided
with means for draining. Tank drain does not allow total
drainage. Drain valve missing or broken. Overflow pipe is
of different size than drain, does not bypass drain valve,
is not connected to drain pipe, and does not contain a
removable strainer.
11411-2
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