Figure 3-6. Fuel pump removal.
(b) Mount fuel pump on ST-546 Pump
(c) Lift cover off dowels and discard gasket
(2) PT (Type G)fuelpump service cooling kit.
Caution: Never use a steel hammer on
(a) Remove check valve and orifice elbow
aluminum, or on a finished surface, it can cause
assembly from bottom or back side of fuel pump.
(b) Clean parts in clean fuel oil and dry with
(d) Remove weight assist plunger, spring
compressed air blown through both ends.
and shims from weight carrier assembly.
(3) Shut-down valve.
flatwashers securing valve to top of main housing (fig. 3-
(b) Lift off shutdown valve and discard
(4) Pulsation damper.
and flatwashers securing pulsation damper to gear
pump. Some dampers are fitting mounted and are
removed by screwing damper from fitting on gear pump
(b) Lift off damper and discard performed
(5) Front drive cover.
flatwashers securing drive cover to main housing (fig. 3-
Figure 3-7. Fuel pump mounted to ST-546.
(b) Tap edge of cover lightly with a plastic
hammer to loosen.