Small amount of fuel may be released when disconnecting
fuel lines. Collect fuel in approved safety container. Wipe
up any spilled fuel promptly. Dispose of wiping cloth in
Disconnect fuel lines from FUEL INLET and FUEL OVERFLOW fittings. Install cap plugs on
fittings. Disconnect fuel lines from IN and OUT ports on external fuel pump. Cover or plug
ports. Remove fuel pump from mounting surface.
Remove hood if installed. Place attaching screws and lock washers in box or bag, identify, and
secure box or bag to hood.
Support heater, if necessary, and remove mounting bolts or lag screws. Place heater on bench
If heater has been modified (air flow is other than downward), refer to paragraph 3-8 and
restore to initial position.
3 - 2 1 . P R E P A R A T I ON
Prepare heater for shipment or storage as
Dry cleaning solvent P-D-680 (safety or Stoddards Solvent)
is potentially dangerous.
Avoid repeated and prolonged
breathing of vapors and skin contact with the liquid. Do
not use near open flame, arcing equipment, or other igni-
tion sources. Always wear eye protection and protective
clothing. Flash point of P-D-680 is 100° to 138° F (38° to
Death or serious injury could occur if compressed air is
directed against the skin.
Do not use compressed air for
cleaning or drying unless the pressure is/has been reduced to
30 psi (207 kPa) or less.
When working with compressed
air always use chip guards, eye protection, and other per-
sonal protective equipment.
Remove grease, oil, and fuel deposits by wiping with rags dampened with P-D-680 dry cleaning
solvent. Remove excess dry cleaning solvent and dry with compressed air.
Inspect painted surfaces of heater for scratches or other damage. Forward to intermediate
maintenance for painting or other repair.
Apply light coating of VV-L-800 preservative oil to exposed unpainted metal surfaces. Move
side louvers to closed position.