Jacobsen AR331, Safety, Operation & Maintenance Manual

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8 MAINTENANCE AND LUBRICATION
8.9 REPLACING FUEL FILTERS ____________________________________________
1. Stop the engine.
2. Open the air valve (A) at the top of the filter (B) to release
system pressure.
3. Remove fuel filter cartridge (B). Clean any fuel that spills.
4. Assemble new filter cartridge to the filter base. Tighten the
cartridge with your hand.
5. Loosen hose clamps (C). Loosen filter clamp (E) and
replace pre-filter (D).
6. Bleed air from the fuel system (See 8.12).
8.10 FUEL SYSTEM _______________________________________________________
The fuel system must be bled when:
• Starting the engine for the first time.
• The fuel tank becomes completely empty.
• The engine has not been used for an extended period of time.
• The fuel filter and/or fuel lines have been loosened, removed or replaced.
Bleeding the fuel system.
1. Fill the fuel tank.
2. Open the air vent on top of the fuel filter.
3. Turn the ignition switch to “Run Position” to operate the fuel pump. Allow the pump to run until a
steady stream of fuel is coming out of the fuel filter air vent. Stop the pump and close the air vent.
4. Open the air vent on top of the injection pump, open air vent only when engine is NOT running.
5. Turn the ignition switch to START to operate the fuel pump. Allow the pump to run until a steady
stream of fuel is coming out of the injection pump air vent. Stop the pump and close the air vent.
CAUTION
The diesel fuel can damage your skin. Use gloves when you use diesel fuel. If diesel fuel touches
your skin, clean the area immediately.
Discard used hydraulic oil in accordance with local regulations.
A
B
C
C
E
D