Priming Fuel System - MacDon M1170NT5 Operator's Manual

NOTE:
If replacing the filter, refer to
1. Screw new secondary filter (A) onto the filter mount until
the gasket contacts the filter head.
2. Tighten the filter an additional 1/2 to 3/4 turn by hand.
IMPORTANT:
Do NOT use a filter wrench to install the filter.
Overtightening can damage the gasket and filter.
3. Prime the fuel system. For instructions, refer to
Fuel System, page 302.

Priming Fuel System

Controlled venting of air is provided at the injection pump through the fuel drain manifold. Small amounts of air introduced
by changing filters or injection pump supply line will be vented automatically if the fuel filters are changed in accordance
with instructions.
IMPORTANT:
Do NOT bleed the fuel system. Manual priming will be required if:
• Fuel filter is replaced
• Injection pump is replaced
• High-pressure fuel lines are replaced
• Engine is run until fuel tank is empty
DANGER
To prevent bodily injury or death from the unexpected startup of the machine, always stop the engine and remove the
key from the ignition before leaving the operator's seat for any reason.
WARNING
The fuel pump high-pressure fuel lines and fuel rail contain extremely high-pressure fuel. Never loosen any fittings.
Personal injury and property damage can result.
1. Shut down the engine, and remove the key from the ignition.
2. Open the hood. For instructions, refer to
215922
MAINTENANCE AND SERVICING
5.1.5 Filter Part Numbers, page
Priming
5.3.1 Opening Hood, page
234.
Figure 5.105: Fuel System
239.
302
A
Revision A