SERVICE PROCEDURE MAINTENANCE
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8. Loosen air bleeder (4) of the supply pump.
9. Pump priming pump (3) until no more bubbles come out
with the fuel from air bleeder (4), then tighten air bleeder (4).
Tightening torque: 4.9 to 6.9 N²m (0.5 to 0.7 kgf²m, 3.6 to
5.1 lbft)
10.Continue pumping (approx. 50 times) until the priming pump (3) becomes stiff and the overflow valve release
sound becomes continuous.
11.Push the knob of priming pump (3) in and tighten it.
12.After replacing the filter cartridge, start the engine and check that there is no leakage of fuel from the filter seal
surface. If there is any leakage of fuel, check the tightening of the filter cartridge. If there is still leakage of fuel,
follow Step 1 and 2 to remove the filter cartridge, then check the packing surface for damage or foreign mate-
rial. If any damage or foreign material is found in the packing, replace the cartridge with a new part, then repeat
Steps 3 - 12 to install the filter cartridge.
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