5) Testing
(1) Suction capacity test
Connect one end of a hose to the inlet side of the feed
pump and immerse the other end of it into the fuel
tank as illustrated.
Hold the feed pump in position about 1 m above the
level of fuel in the fuel tank.
Operate the tappet at the rate of 100 rpm and check to
see if fuel is drawn in and delivered for 40 seconds or
so.
(2) Delivery test
Make a test with the feed pump mounted on a pump
tester as illustrated. Operate the pump at the rate of
1,000 rpm and check to see if the pump delivery is
more than 405 cc/15 seconds.
(3) Sealing test
Plug up the delivery port on the feed pump and apply
compressed air of 2 kg/cm2 into the inlet side.
Submerge the feed pump in a container of diesel fuel
and check for air leak.
5ton Diesel Engine SPC000006
Page 105
To Next Page
Loading...
