A-A-50304
(4) Have mechanical guides and a locking devices that provide aligning and locking the mobile engine stands to the power absorber frame.
(5) Are equipped with a drain pan having a tapered pipe thread of sufficient size (3/4 NPT minimum) with mating pipe cap.
c. A thermostatically controlled cooling column for use with liquid cooled engines with:
(1) A heat dissipation rate of at least 1,320,000 BTU per hour.
(2) An adjustable thermostatic control valve to obtain an engine water outlet temperature of 160 degrees F to 200 degrees F.
(3) A pressure relief valve incorporated in the cooling system to prevent abnormal cooling system pressure.
(4) A means provided for filing, venting and draining the cooling system.
(5) A free standing and self-contained design.
(6) Hoses with quick disconnect couplings and adapters provided to connect the cooling column with the engines listed herein.
(7) A sight gage to indicate the coolant level and a dial thermometer to indicate the engine coolant temperature.
d. Control console that:
(1) Houses all controls and instruments necessary for engine testing.
(2) Incorporates a data desk in a position below and in front of the instrumentation and control boards.
(3) Has instruments and controls oriented to promote legibility, and ease of operation by the seated operator.
(4) Is free standing and completely enclosed.
(5) Has all internal electrical leads, thermocouple leads and mechanical leads terminating on a junction panel in the rear of the control console.
(6) Has access from the rear of the control console provided for connecting electrical and mechanical leads and for servicing and repairing all instruments and controls.
(7) Is arranged for installation outside of the test cell.
(8) Has instruments nad controls permanently marked for function, and grouped, as far as possible, in the four general areas of engine controls, engine instrumentation, dynamometer instrumentation and controls, and safety warning devices.
(9) Has a receptacle furnished and mounted on the control console to house a supply of test-log forms.
(10) Has a supply of test-log forms.
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