Figure 6-247. Disassembling or assembling secondary fuel filter and fuel/water separator drain valves

b. Cleaning, Inspection, and Repair. Refer to

(1) Pressure check fuel / water separator

inlet and outlet hoses to a proof pressure of 500

psi. Replace hoses that do not withstand pressure

check.

(2) Flush drain valve tubes thoroughly with

a high pressure cleaning device to assure tubes

are cleaned and free of obstructions. Check tubes

for cracks, dents, or signs of corrosive

deterioration. Inspect tube fittings for burrs or

mutilated sealing surfaces. Check drain valves

for leakage. Valves that leak must be replaced.

c. Assembly. Refer to figures 6-247 and 6-242.

The mounting brackets, fuel hoses, and fittings

Disassemble

are installed during engine assembly, Chapter 7.

1. Remove two hose clamps (A) and two hoses.

2. Remove two nuts (B) with sleeves and remove long

tube (C) and short tube (D) from drain valves.

3 . Place the toggle type valve handles in the open

position. Remove two nuts (E) and remove two valves

from bracket.

Assemble

1 . Place the toggle type valve handles in the open

position. Position two drain valves on bracket and

install two nuts (E).

2. Position short tube (D) and long tube (C) in drain

valves and install two nuts (B) with sleeves.

3. Install two hoses and hose clamps (A).

Disassembling

assembling

secondary fuel filter and fuel / water

separator drain valves.

6-208