Warning – SkyTrak 3606 Operation Manual User Manual

Page 124

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122

3606 Rev 11/99

General Maintenance

D. Bleeding Fuel System

Air must be vented from the fuel system whenever any component between
the fuel tank and the injection pump has been disconnected, or when the
system has been emptied or run out of fuel.

IMPORTANT! DO NOT attempt to start the engine until the injection pump
has been filled and primed with fuel. Serious damage to the lift pump will
result due to lack of proper lubrication.

1. To vent air from the low pressure fuel lines, loosen the vent plug on

the filter head (Figure 79). Operate the lift pump priming lever until
fuel, free of air, comes out the vent plug. Tighten the vent plug.

NOTE: If the lift pump drive cam is at a point of maximum lift, it will not be
possible to operate the priming lever. In this situation, the crankshaft must
be turned one revolution.

WARNING

DO NOT bleed the fuel system of a hot engine. Doing so could create a
fire hazard. Allow the engine to cool before bleeding the fuel system.

PERKINS ENGINE:

122

3606 Rev 11/99

General Maintenance

D. Bleeding Fuel System

Air must be vented from the fuel system whenever any component between
the fuel tank and the injection pump has been disconnected, or when the
system has been emptied or run out of fuel.

IMPORTANT! DO NOT attempt to start the engine until the injection pump
has been filled and primed with fuel. Serious damage to the lift pump will
result due to lack of proper lubrication.

1. To vent air from the low pressure fuel lines, loosen the vent plug on

the filter head (Figure 79). Operate the lift pump priming lever until
fuel, free of air, comes out the vent plug. Tighten the vent plug.

NOTE: If the lift pump drive cam is at a point of maximum lift, it will not be
possible to operate the priming lever. In this situation, the crankshaft must
be turned one revolution.

WARNING

DO NOT bleed the fuel system of a hot engine. Doing so could create a
fire hazard. Allow the engine to cool before bleeding the fuel system.

PERKINS ENGINE:

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