TM55-2840-251-23
8-3
OIL-TO-FUEL HEATER (Continued)
8-3-1 REMOVAL
1.
Disconnect fuel inlet hose from inlet connection
(12).
2.
Cut lockwire and disconnect fuel outlet hose
connection (1) from elbow (7).
3.
Remove three bolts (2) and washers (3) securing
oil-to-fuel heater (4) to heater mounting bracket (13).
Remove heater (4).
4.
Withdraw
two
packing
transfer
tubes
(10).
Remove and discard preformed packings (5) and (11).
5.
If oil-to-fuel heater is to be replaced, back off
locknut (6) and remove elbow (7). Remove and discard
preformed packing (9) and backup ring (8). Remove
locknut (6).
8-3-2 INSPECTION
1.
Inspect all inlet and outlet ports for general
condition.
2.
Inspect threads for cleanliness and freedom from
burrs.
3.
Inspect mating faces for surface damage. No
damage allowed.
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