TEST (CONT) - TM-3-4230-209-30-P0256

TM 3-4230-209-30&P

2-240

2-53. LOW PRESSURE HEATING BOILER ASSEMBLY (CONT).

REMARKS

ACTION

LOCATION/lTEM

Testing Operation

Low Pressure Heating

Boiler Assembly/

Operate the hand-driven reciprocating pump. See

TM 3-1040-251-15.

Test that the low pressure heating boiler assembly withstands a

pressure of 225 psi as indicated on the water pressure gage and the

gage of the hand-driven reciprocating pump. Observe that the pres-

sure of 225 psi, once applied, holds and does not drop after a 5-

minute application.

If pressure testis satisfactory, remove test equipment and return low

pressure heating boiler assembly to service.

If the low-pressure heating boiler assembly shows a pressure drop,

go to Inspection and Repair Operation below.

Inspection and Repair Operation

Look for leaks at:

Sheet metal welds.

Inlet and outlet pipe welds.

Adapter pipe welds for safety relief valve, water pressure gage,

and temperature sensing ports.