PRIMARY FUEL FILTER REPLACEMENT (Sheet 4 of 4)
Using adjustable wrench, unscrew bleed cap (J) until it can be opened or closed using fingers.
Leave valve open.
Using another technician, set FUEL PUMPS
switch (K) on master control panel in driver's
c o m p a r t m e n t to ON.
Set MASTER BATTERY switch (L) to ON
and observe air release (bubbles) from bleed
Set MASTER BATTERY switch (L) to OFF and, after about 1 minute, repeat step 12.
Repeat steps 12 and
13 until a steady flow
of fuel comes out of
bleed valve (J), then
close bleed valve (J)
and set MASTER
B A T T E R Y switch to
Using adjustable wrench, tighten bleed valve (J) enough so it cannot be opened with the
End of Task