TM 10-4320-344-24Figure 2-115. Fuel Filter and Base Assembly Maintenance, Model 609-A.2.21.4.3 Repair.a.Clean all parts with clean cloth.b.Inspect fluid filter heads (6) and tube couplings (11) for cracks, strippedthreads, distortions and blocked fuel passages.To prevent the possibility of embedding foreign objects in the eyes, safetygoggles must be worn when using compressed air.c .Using compressed dry air dry all parts. Ensure all fuel passages arethoroughly dried.d.Induce 25-35 psi (172.2-241.09 kPa) of air into fluid filter heads (6) andtube couplings (11) to clear any foreign matter.e .Inspect all fittings and attaching hardware for damage.f .Replace all defective components.2-269
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