Bleeding the System
Air must be bled from the fuel system if (1) the engine runs out of fuel, (2)
the fuel system is serviced, or (3) the engine is taken out of storage.
1. Fill the fuel tank. Do not start the engine.
a. If fuel system is not equipped with the optional electric fuel pump,
loosen hand primer pump knob by turning counterclockwise and
operate primer pump.
b. If equipped with an optional fuel pump, turn key switch to Run posi-
tion to activate the pump. Do not turn switch to Start position.
2. Open bleed screw on top of first stage filter and allow air to escape. Close
bleed screw when clear fuel appears. Bleed second stage filter in the same
manner. Secure hand primer pump by pushing knob down and turning
clockwise until secured.
3. Start the engine. If roughness or missing is detected, bleed each injector
line by "cracking" open the tube nut at the injector.
Servicing Fuel Filters
Service fuel filters every 500 hours or sooner i·floss of power is indicated.
Service in following order: (1) Electric fuel pump filter, (2) fuel transfer pump
fi Iter, and (3) fi rst and second stage fuel fi Iters. If fi Iter servicing does not solve
problem, see your Case Dealer.
Electric Fuel Pump Filter
1. Use a wrench to turn bottom cover from bayonet pins. Twist cover off.
2. Remove filter, magnet and cover gasket. Replace filter (preferred) or clean
in solvent and blow dry. Replace gasket, reinstall parts and tighten cover.
Bleed system.
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