Routine Maintenance
221
7
Priming The Fuel System
Air can enter the fuel system in the following situations:
A. If the fuel tank becomes empty or is low on fuel.
B. After fuel system parts have been removed for service or repairs.
C.If the tractor has been in storage for a long period of time.
IMPORTANT: DO NOT crank the engine before removing all the air from the fuel system or the fuel injection
pump can be damaged.
STEP 1
Make sure there is fuel in the tank.
STEP 2
Turn the key switch to ON to energize the cut off
solenoid.
STEP 3
MD05D004
Loosen the fitting (1) located on top of the fuel
filter.
STEP 4
MD05D002
Operate the hand primer pump (2). Tighten when
fuel with no air bubbles flows from the fitting.
NOTE: If the primer pump cannot be activated,
turn the engine a small amount.
STEP 5
MD05D003
Loosen two of the injector pipes (3) at the
injectors.
Operate the starter motor until air free fuel flows.
Tighten the injector pipes (but do NOT over
tighten).
IMPORTANT: DO NOT operate the starter motor
for long periods or you could cause damage to the
starter motor, battery and fuel injection pump.
STEP 6
Start the engine and check for fuel leaks around
the filter, the fuel lines and fittings.
If the engine does not run correctly make sure all
connections are tight, apply the maximum
possible load until the engine runs smoothly.
If the engine fails to start repeat the air removal
procedure. If the engine still fails to start see your
dealer.
500 HOUR SERVICE
1
2
WARNING: Never start the engine in a
closed building. Proper ventilation is
required under all circumstances.
3
3
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