Exmark Lazer Z Air-cooled series Operator's Manual page 35

4.1.24 Fuel pressure relief and priming procedure: (Kohler EFI units only)
Service Interval: As required
POTENTIAL HAZARD
♦ Fuel system components remain under high pressure,
even when the engine is stopped.
WHAT CAN HAPPEN
♦ Failure to relieve pressure from the system can cause
gasoline to spray or spill. Spilled fuel or fuel vapors
could be ignited by hot parts.
HOW TO AVOID THE HAZARD
♦ Allow the engine to cool completely.
♦ Safely relieve the pressure from the fuel system before
attempting to service the fuel system.
A Kohler pressure gauge with an integral relief valve (Kohler Part No. 2445504)
is recommended for relieving pressure and purging air in the fuel system.
To relieve the system of pressure:
a) Stop engine, wait for all moving parts to stop, and remove key.
b) Allow the engine to cool completely.
c) Connect the black tester hose from the Kohler pressure gauge to the test
valve in the fuel rail.
d) Route the clear hose into a portable gasoline container and depress the
button on the tester relief valve.
4.1.25 Change hydraulic system filter:
Service Interval: After First 250 hrs.
NOTE: Use only Exmark Part No. 1-513211 for summer use above 32° F (0°C)
or Part No. 1-523541 for winter use below 32° F (0°C).
a) Stop engine, wait for all moving parts to stop, and remove key.
b) Raise seat.
c) Carefully clean area around filter. It is important that no dirt or
contamination enter hydraulic system.
FIGURE 5
KOHLER EFI FUEL LINE ROUTING
WARNING
Then yearly thereafter
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