Replacing The Fuel Filter - JLG 400S Service And Maintenance Manual

SECTION 3 - CHASSIS & TURNTABLE
5. Lightly coat new oil filter rubber gasket with clean oil.
6. Manually screw in the new filter until the gasket is flush.
7. Hand-tighten filter another half-turn.
8. Check oil level.
9. Check oil pressure.
10. Check the oil filter cartridge and make sure there are no
leaks.
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Replacing the Fuel Filter

FUEL IS FLAMMABLE AND CAN CAUSE DEATH OR SERIOUS INJURY. MAKE SURE
NO OPEN FLAMES OR SPARKS ARE IN THE AREA WHEN WORKING ON FUEL
SYSTEM. DO NOT SMOKE WHEN WORKING ON THE FUEL SYSTEMS.
1. Wipe the area around the filter to clean any dirt from the
area.
2. Fuel supply from the fuel tank may need to be blocked
to prevent fuel flow from the tank.
3. Undo the fuel filter cartridge and spin off.
4. Catch any escaping fuel.
5. Clean any dirt from the filter carrier sealing surface.
6. Apply a light film of oil or diesel fuel to the rubber gas-
ket of the new filter cartridge.
7. Manually screw in the new filter until the gasket is flush.
8. Tighten the fuel filter cartridge with a final half-turn.
9. Check for leaks.
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