PUMP TESTING PROCEDURE

VACUUM TEST

 A vacuum test should be conducted on the pump. The interior of the pump should be subjected to a vacuum test as follows:

(1)    All intake valves must be open, all intakes capped or plugged, and all discharge caps

         removed.

(2)    The primer must be operated in accordance with the manufacturer's instructions.

(3)    The maximum vacuum attained must be at least 22 in. Hg (0.75 bar). At altitudes above

         2000 ft   (610 m), the vacuum attained must be permitted to be less than 22 in. Hg (0.75 bar) by

         1 in. Hg (0.034 bar) for each 1000 ft (305 m) of altitude above 2000 ft (610 m).

(4)   The vacuum must not drop more than 10 in. Hg (0.34 bar) in 5 minutes.

(5)   The primer must not be used after the 5-minute test period has begun.

(6)   The engine must not be operated at any speed greater than the governed speed during this

        test.