Cub Cadet Challenger 550, Service Manual

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7‐10
Engine Management System
Fuel Module Removal
•
Relieve fuel pressure by disconnecting the power to the pump, pull the spark
plug boot off the plug and place it away from the plug. Crank the engine to
release the pressure in the lines.
• Disconnect Battery negative cable.
• Disconnect fuel module wire coupler.
• Disconnect the fuel hoses from fuel module by using standard tools
• Twist off screw ring and remove the fuel module from the fuel cell.
• This is non-serviceable and needs to be replaced as a unit.
Installation
•
Reverse the removal process
•
Fill with at least 3 liters of fuel.
•
Install fuel filler cap
•
Turn on the ignition key to prime the pump and fuel lines.
Fuel Leakage check procedure
After performing any service on fuel system, check to make sure that there are no fuel
leaks.
•
Fill about 3 ~ 5 liters of fuel in tank.
•
Turn Ignition key to ON position for 3 seconds (to operate fuel pump) and then
turn to OFF position. Repeat this for 3 ~ 4 times to apply fuel pressure in fuel
lines.
• In this state, check to see that there are no fuel leaks from any part of the fuel
system (Fuel Tank, Hoses, Hose Joints, etc.)
Use care when handling the Fuel module, it has electrical components and improper
care could cause a malfunction of the unit.