Changing The Fuel Pump - Husqvarna FS 450 2019 Repair Manual

12.10

Changing the fuel pump

Danger
Fuel is highly flammable.
Fire hazard
The fuel in the fuel tank expands when warm and can escape if overfilled.
-
Do not refuel the vehicle in the vicinity of open flames or lit cigarettes.
-
Switch off the engine for refueling.
-
Make sure that no fuel is spilled; particularly not on hot parts of the vehicle.
-
If any fuel is spilled, wipe it off immediately.
-
Observe the specifications for refueling.
A
Warning
Danger of poisoning
-
Avoid skin, eye and clothing contact with fuel.
-
Immediately consult a doctor if you swallow fuel.
-
Do not inhale fuel vapors.
-
In case of skin contact, rinse the affected area with plenty of water.
-
Rinse the eyes thoroughly with water, and consult a doctor in case of fuel contact with the eyes.
-
Change your clothing in case of fuel spills on them.
-
Keep fuels correctly in a suitable canister, and out of the reach of children.
Guideline
Maximum duration of the
actuator test
-
Check the fuel pressure with the fuel tank filler cap closed.
Fuel pressure
When the fuel pump is
active
If the specification is not reached:
-
Open fuel tank filler cap.
-
Check the fuel tank breather.
-
Check the fuel pressure with the fuel tank filler cap open.
Fuel pressure
When the fuel pump is
active
If the specification is not reached:
-
Check that the fuel line is clear.
-
Change the fuel filter.
-
Change the fuel pump.
-
Stop the
"Function test of fuel pump controller"
test by pressing the
-
Remove the special tools.
-
Lubricate the O-ring and join the plug-in connection of the
fuel line.
Fuel is poisonous and a health hazard.
FUEL TANK, SEAT, TRIM
3 min
3.3 ... 3.7 bar (48 ... 54 psi)
1
(8 p. 98)
3.3 ... 3.7 bar (48 ... 54 psi)
1
(8 p. 108)
(8 p. 105)
button.
"Quit"
12
actuator
41
105