Crankcase Breather - Navistar MaxxForce 7 Operation And Maintenance Manual

SECTION 5 – MAINTENANCE SCHEDULE AND SERVICE PROCEDURES
Service Procedures (cont.)
SECONDARY FUEL FILTER (cont.)
11. Secure the fuel filter cap and element to the fuel filter housing
by turning the fuel filter cap clockwise until finger-tight.
12. Tighten fuel filter cap to 29 lb·ft (40 N·m).
13. Prime the engine as follows:
• Key - On for 10 seconds
• Key - Off for 15 seconds
• Key - On for 10 seconds
• Key - Off for 15 seconds
• Key - On for 10 seconds
14. Check for fuel leaks prior to starting engine. If leaks are
found, correct the problem.
15. Start the engine and check for leaks. For further information
see Starting the Engine (page 51).
16. If leaks are found, shut down the engine and correct the
problem.
17. If engine does not start, see the Engine Diagnostic Manual.
Page 86

CRANKCASE BREATHER

NOTE: Engines built in July 2012 and later have a
non-servicable crankcase breather.
Figure 37 Non-Serviceable Crankcase Breather Identifier
The non-serviceable crankcase breather can be identified by a
bar code label on the side. Serviceable crankcase breathers will
not have a barcode on the side.